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Edit File: test-debug.cc
// Copyright 2012 the V8 project authors. All rights reserved. // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following // disclaimer in the documentation and/or other materials provided // with the distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. #ifdef ENABLE_DEBUGGER_SUPPORT #include <stdlib.h> #include "v8.h" #include "api.h" #include "cctest.h" #include "compilation-cache.h" #include "debug.h" #include "deoptimizer.h" #include "platform.h" #include "stub-cache.h" #include "utils.h" using ::v8::internal::EmbeddedVector; using ::v8::internal::Object; using ::v8::internal::OS; using ::v8::internal::Handle; using ::v8::internal::Heap; using ::v8::internal::JSGlobalProxy; using ::v8::internal::Code; using ::v8::internal::Debug; using ::v8::internal::Debugger; using ::v8::internal::CommandMessage; using ::v8::internal::CommandMessageQueue; using ::v8::internal::StepAction; using ::v8::internal::StepIn; // From StepAction enum using ::v8::internal::StepNext; // From StepAction enum using ::v8::internal::StepOut; // From StepAction enum using ::v8::internal::Vector; using ::v8::internal::StrLength; // Size of temp buffer for formatting small strings. #define SMALL_STRING_BUFFER_SIZE 80 // --- A d d i t i o n a l C h e c k H e l p e r s // Helper function used by the CHECK_EQ function when given Address // arguments. Should not be called directly. static inline void CheckEqualsHelper(const char* file, int line, const char* expected_source, ::v8::internal::Address expected, const char* value_source, ::v8::internal::Address value) { if (expected != value) { V8_Fatal(file, line, "CHECK_EQ(%s, %s) failed\n# " "Expected: %i\n# Found: %i", expected_source, value_source, expected, value); } } // Helper function used by the CHECK_NE function when given Address // arguments. Should not be called directly. static inline void CheckNonEqualsHelper(const char* file, int line, const char* unexpected_source, ::v8::internal::Address unexpected, const char* value_source, ::v8::internal::Address value) { if (unexpected == value) { V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %i", unexpected_source, value_source, value); } } // Helper function used by the CHECK function when given code // arguments. Should not be called directly. static inline void CheckEqualsHelper(const char* file, int line, const char* expected_source, const Code* expected, const char* value_source, const Code* value) { if (expected != value) { V8_Fatal(file, line, "CHECK_EQ(%s, %s) failed\n# " "Expected: %p\n# Found: %p", expected_source, value_source, expected, value); } } static inline void CheckNonEqualsHelper(const char* file, int line, const char* expected_source, const Code* expected, const char* value_source, const Code* value) { if (expected == value) { V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n# Value: %p", expected_source, value_source, value); } } // --- H e l p e r C l a s s e s // Helper class for creating a V8 enviromnent for running tests class DebugLocalContext { public: inline DebugLocalContext( v8::ExtensionConfiguration* extensions = 0, v8::Handle<v8::ObjectTemplate> global_template = v8::Handle<v8::ObjectTemplate>(), v8::Handle<v8::Value> global_object = v8::Handle<v8::Value>()) : context_(v8::Context::New(extensions, global_template, global_object)) { context_->Enter(); } inline ~DebugLocalContext() { context_->Exit(); context_.Dispose(); } inline v8::Context* operator->() { return *context_; } inline v8::Context* operator*() { return *context_; } inline bool IsReady() { return !context_.IsEmpty(); } void ExposeDebug() { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); // Expose the debug context global object in the global object for testing. debug->Load(); debug->debug_context()->set_security_token( v8::Utils::OpenHandle(*context_)->security_token()); Handle<JSGlobalProxy> global(Handle<JSGlobalProxy>::cast( v8::Utils::OpenHandle(*context_->Global()))); Handle<v8::internal::String> debug_string = FACTORY->LookupAsciiSymbol("debug"); SetProperty(global, debug_string, Handle<Object>(debug->debug_context()->global_proxy()), DONT_ENUM, ::v8::internal::kNonStrictMode); } private: v8::Persistent<v8::Context> context_; }; // --- H e l p e r F u n c t i o n s // Compile and run the supplied source and return the fequested function. static v8::Local<v8::Function> CompileFunction(DebugLocalContext* env, const char* source, const char* function_name) { v8::Script::Compile(v8::String::New(source))->Run(); return v8::Local<v8::Function>::Cast( (*env)->Global()->Get(v8::String::New(function_name))); } // Compile and run the supplied source and return the requested function. static v8::Local<v8::Function> CompileFunction(const char* source, const char* function_name) { v8::Script::Compile(v8::String::New(source))->Run(); return v8::Local<v8::Function>::Cast( v8::Context::GetCurrent()->Global()->Get(v8::String::New(function_name))); } // Is there any debug info for the function? static bool HasDebugInfo(v8::Handle<v8::Function> fun) { Handle<v8::internal::JSFunction> f = v8::Utils::OpenHandle(*fun); Handle<v8::internal::SharedFunctionInfo> shared(f->shared()); return Debug::HasDebugInfo(shared); } // Set a break point in a function and return the associated break point // number. static int SetBreakPoint(Handle<v8::internal::JSFunction> fun, int position) { static int break_point = 0; Handle<v8::internal::SharedFunctionInfo> shared(fun->shared()); v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); debug->SetBreakPoint( shared, Handle<Object>(v8::internal::Smi::FromInt(++break_point)), &position); return break_point; } // Set a break point in a function and return the associated break point // number. static int SetBreakPoint(v8::Handle<v8::Function> fun, int position) { return SetBreakPoint(v8::Utils::OpenHandle(*fun), position); } // Set a break point in a function using the Debug object and return the // associated break point number. static int SetBreakPointFromJS(const char* function_name, int line, int position) { EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer; OS::SNPrintF(buffer, "debug.Debug.setBreakPoint(%s,%d,%d)", function_name, line, position); buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0'; v8::Handle<v8::String> str = v8::String::New(buffer.start()); return v8::Script::Compile(str)->Run()->Int32Value(); } // Set a break point in a script identified by id using the global Debug object. static int SetScriptBreakPointByIdFromJS(int script_id, int line, int column) { EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer; if (column >= 0) { // Column specified set script break point on precise location. OS::SNPrintF(buffer, "debug.Debug.setScriptBreakPointById(%d,%d,%d)", script_id, line, column); } else { // Column not specified set script break point on line. OS::SNPrintF(buffer, "debug.Debug.setScriptBreakPointById(%d,%d)", script_id, line); } buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0'; { v8::TryCatch try_catch; v8::Handle<v8::String> str = v8::String::New(buffer.start()); v8::Handle<v8::Value> value = v8::Script::Compile(str)->Run(); CHECK(!try_catch.HasCaught()); return value->Int32Value(); } } // Set a break point in a script identified by name using the global Debug // object. static int SetScriptBreakPointByNameFromJS(const char* script_name, int line, int column) { EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer; if (column >= 0) { // Column specified set script break point on precise location. OS::SNPrintF(buffer, "debug.Debug.setScriptBreakPointByName(\"%s\",%d,%d)", script_name, line, column); } else { // Column not specified set script break point on line. OS::SNPrintF(buffer, "debug.Debug.setScriptBreakPointByName(\"%s\",%d)", script_name, line); } buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0'; { v8::TryCatch try_catch; v8::Handle<v8::String> str = v8::String::New(buffer.start()); v8::Handle<v8::Value> value = v8::Script::Compile(str)->Run(); CHECK(!try_catch.HasCaught()); return value->Int32Value(); } } // Clear a break point. static void ClearBreakPoint(int break_point) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); debug->ClearBreakPoint( Handle<Object>(v8::internal::Smi::FromInt(break_point))); } // Clear a break point using the global Debug object. static void ClearBreakPointFromJS(int break_point_number) { EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer; OS::SNPrintF(buffer, "debug.Debug.clearBreakPoint(%d)", break_point_number); buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0'; v8::Script::Compile(v8::String::New(buffer.start()))->Run(); } static void EnableScriptBreakPointFromJS(int break_point_number) { EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer; OS::SNPrintF(buffer, "debug.Debug.enableScriptBreakPoint(%d)", break_point_number); buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0'; v8::Script::Compile(v8::String::New(buffer.start()))->Run(); } static void DisableScriptBreakPointFromJS(int break_point_number) { EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer; OS::SNPrintF(buffer, "debug.Debug.disableScriptBreakPoint(%d)", break_point_number); buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0'; v8::Script::Compile(v8::String::New(buffer.start()))->Run(); } static void ChangeScriptBreakPointConditionFromJS(int break_point_number, const char* condition) { EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer; OS::SNPrintF(buffer, "debug.Debug.changeScriptBreakPointCondition(%d, \"%s\")", break_point_number, condition); buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0'; v8::Script::Compile(v8::String::New(buffer.start()))->Run(); } static void ChangeScriptBreakPointIgnoreCountFromJS(int break_point_number, int ignoreCount) { EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer; OS::SNPrintF(buffer, "debug.Debug.changeScriptBreakPointIgnoreCount(%d, %d)", break_point_number, ignoreCount); buffer[SMALL_STRING_BUFFER_SIZE - 1] = '\0'; v8::Script::Compile(v8::String::New(buffer.start()))->Run(); } // Change break on exception. static void ChangeBreakOnException(bool caught, bool uncaught) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); debug->ChangeBreakOnException(v8::internal::BreakException, caught); debug->ChangeBreakOnException(v8::internal::BreakUncaughtException, uncaught); } // Change break on exception using the global Debug object. static void ChangeBreakOnExceptionFromJS(bool caught, bool uncaught) { if (caught) { v8::Script::Compile( v8::String::New("debug.Debug.setBreakOnException()"))->Run(); } else { v8::Script::Compile( v8::String::New("debug.Debug.clearBreakOnException()"))->Run(); } if (uncaught) { v8::Script::Compile( v8::String::New("debug.Debug.setBreakOnUncaughtException()"))->Run(); } else { v8::Script::Compile( v8::String::New("debug.Debug.clearBreakOnUncaughtException()"))->Run(); } } // Prepare to step to next break location. static void PrepareStep(StepAction step_action) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); debug->PrepareStep(step_action, 1); } // This function is in namespace v8::internal to be friend with class // v8::internal::Debug. namespace v8 { namespace internal { // Collect the currently debugged functions. Handle<FixedArray> GetDebuggedFunctions() { Debug* debug = Isolate::Current()->debug(); v8::internal::DebugInfoListNode* node = debug->debug_info_list_; // Find the number of debugged functions. int count = 0; while (node) { count++; node = node->next(); } // Allocate array for the debugged functions Handle<FixedArray> debugged_functions = FACTORY->NewFixedArray(count); // Run through the debug info objects and collect all functions. count = 0; while (node) { debugged_functions->set(count++, *node->debug_info()); node = node->next(); } return debugged_functions; } static Handle<Code> ComputeCallDebugBreak(int argc) { return Isolate::Current()->stub_cache()->ComputeCallDebugBreak(argc, Code::CALL_IC); } // Check that the debugger has been fully unloaded. void CheckDebuggerUnloaded(bool check_functions) { // Check that the debugger context is cleared and that there is no debug // information stored for the debugger. CHECK(Isolate::Current()->debug()->debug_context().is_null()); CHECK_EQ(NULL, Isolate::Current()->debug()->debug_info_list_); // Collect garbage to ensure weak handles are cleared. HEAP->CollectAllGarbage(Heap::kNoGCFlags); HEAP->CollectAllGarbage(Heap::kMakeHeapIterableMask); // Iterate the head and check that there are no debugger related objects left. HeapIterator iterator; for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) { CHECK(!obj->IsDebugInfo()); CHECK(!obj->IsBreakPointInfo()); // If deep check of functions is requested check that no debug break code // is left in all functions. if (check_functions) { if (obj->IsJSFunction()) { JSFunction* fun = JSFunction::cast(obj); for (RelocIterator it(fun->shared()->code()); !it.done(); it.next()) { RelocInfo::Mode rmode = it.rinfo()->rmode(); if (RelocInfo::IsCodeTarget(rmode)) { CHECK(!Debug::IsDebugBreak(it.rinfo()->target_address())); } else if (RelocInfo::IsJSReturn(rmode)) { CHECK(!Debug::IsDebugBreakAtReturn(it.rinfo())); } } } } } } void ForceUnloadDebugger() { Isolate::Current()->debugger()->never_unload_debugger_ = false; Isolate::Current()->debugger()->UnloadDebugger(); } } } // namespace v8::internal // Check that the debugger has been fully unloaded. static void CheckDebuggerUnloaded(bool check_functions = false) { // Let debugger to unload itself synchronously v8::Debug::ProcessDebugMessages(); v8::internal::CheckDebuggerUnloaded(check_functions); } // Inherit from BreakLocationIterator to get access to protected parts for // testing. class TestBreakLocationIterator: public v8::internal::BreakLocationIterator { public: explicit TestBreakLocationIterator(Handle<v8::internal::DebugInfo> debug_info) : BreakLocationIterator(debug_info, v8::internal::SOURCE_BREAK_LOCATIONS) {} v8::internal::RelocIterator* it() { return reloc_iterator_; } v8::internal::RelocIterator* it_original() { return reloc_iterator_original_; } }; // Compile a function, set a break point and check that the call at the break // location in the code is the expected debug_break function. void CheckDebugBreakFunction(DebugLocalContext* env, const char* source, const char* name, int position, v8::internal::RelocInfo::Mode mode, Code* debug_break) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); // Create function and set the break point. Handle<v8::internal::JSFunction> fun = v8::Utils::OpenHandle( *CompileFunction(env, source, name)); int bp = SetBreakPoint(fun, position); // Check that the debug break function is as expected. Handle<v8::internal::SharedFunctionInfo> shared(fun->shared()); CHECK(Debug::HasDebugInfo(shared)); TestBreakLocationIterator it1(Debug::GetDebugInfo(shared)); it1.FindBreakLocationFromPosition(position); v8::internal::RelocInfo::Mode actual_mode = it1.it()->rinfo()->rmode(); if (actual_mode == v8::internal::RelocInfo::CODE_TARGET_WITH_ID) { actual_mode = v8::internal::RelocInfo::CODE_TARGET; } CHECK_EQ(mode, actual_mode); if (mode != v8::internal::RelocInfo::JS_RETURN) { CHECK_EQ(debug_break, Code::GetCodeFromTargetAddress(it1.it()->rinfo()->target_address())); } else { CHECK(Debug::IsDebugBreakAtReturn(it1.it()->rinfo())); } // Clear the break point and check that the debug break function is no longer // there ClearBreakPoint(bp); CHECK(!debug->HasDebugInfo(shared)); CHECK(debug->EnsureDebugInfo(shared)); TestBreakLocationIterator it2(Debug::GetDebugInfo(shared)); it2.FindBreakLocationFromPosition(position); actual_mode = it2.it()->rinfo()->rmode(); if (actual_mode == v8::internal::RelocInfo::CODE_TARGET_WITH_ID) { actual_mode = v8::internal::RelocInfo::CODE_TARGET; } CHECK_EQ(mode, actual_mode); if (mode == v8::internal::RelocInfo::JS_RETURN) { CHECK(!Debug::IsDebugBreakAtReturn(it2.it()->rinfo())); } } // --- D e b u g E v e n t H a n d l e r s // --- // --- The different tests uses a number of debug event handlers. // --- // Source for the JavaScript function which picks out the function // name of a frame. const char* frame_function_name_source = "function frame_function_name(exec_state, frame_number) {" " return exec_state.frame(frame_number).func().name();" "}"; v8::Local<v8::Function> frame_function_name; // Source for the JavaScript function which pick out the name of the // first argument of a frame. const char* frame_argument_name_source = "function frame_argument_name(exec_state, frame_number) {" " return exec_state.frame(frame_number).argumentName(0);" "}"; v8::Local<v8::Function> frame_argument_name; // Source for the JavaScript function which pick out the value of the // first argument of a frame. const char* frame_argument_value_source = "function frame_argument_value(exec_state, frame_number) {" " return exec_state.frame(frame_number).argumentValue(0).value_;" "}"; v8::Local<v8::Function> frame_argument_value; // Source for the JavaScript function which pick out the name of the // first argument of a frame. const char* frame_local_name_source = "function frame_local_name(exec_state, frame_number) {" " return exec_state.frame(frame_number).localName(0);" "}"; v8::Local<v8::Function> frame_local_name; // Source for the JavaScript function which pick out the value of the // first argument of a frame. const char* frame_local_value_source = "function frame_local_value(exec_state, frame_number) {" " return exec_state.frame(frame_number).localValue(0).value_;" "}"; v8::Local<v8::Function> frame_local_value; // Source for the JavaScript function which picks out the source line for the // top frame. const char* frame_source_line_source = "function frame_source_line(exec_state) {" " return exec_state.frame(0).sourceLine();" "}"; v8::Local<v8::Function> frame_source_line; // Source for the JavaScript function which picks out the source column for the // top frame. const char* frame_source_column_source = "function frame_source_column(exec_state) {" " return exec_state.frame(0).sourceColumn();" "}"; v8::Local<v8::Function> frame_source_column; // Source for the JavaScript function which picks out the script name for the // top frame. const char* frame_script_name_source = "function frame_script_name(exec_state) {" " return exec_state.frame(0).func().script().name();" "}"; v8::Local<v8::Function> frame_script_name; // Source for the JavaScript function which picks out the script data for the // top frame. const char* frame_script_data_source = "function frame_script_data(exec_state) {" " return exec_state.frame(0).func().script().data();" "}"; v8::Local<v8::Function> frame_script_data; // Source for the JavaScript function which picks out the script data from // AfterCompile event const char* compiled_script_data_source = "function compiled_script_data(event_data) {" " return event_data.script().data();" "}"; v8::Local<v8::Function> compiled_script_data; // Source for the JavaScript function which returns the number of frames. static const char* frame_count_source = "function frame_count(exec_state) {" " return exec_state.frameCount();" "}"; v8::Handle<v8::Function> frame_count; // Global variable to store the last function hit - used by some tests. char last_function_hit[80]; // Global variable to store the name and data for last script hit - used by some // tests. char last_script_name_hit[80]; char last_script_data_hit[80]; // Global variables to store the last source position - used by some tests. int last_source_line = -1; int last_source_column = -1; // Debug event handler which counts the break points which have been hit. int break_point_hit_count = 0; int break_point_hit_count_deoptimize = 0; static void DebugEventBreakPointHitCount(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { Debug* debug = v8::internal::Isolate::Current()->debug(); // When hitting a debug event listener there must be a break set. CHECK_NE(debug->break_id(), 0); // Count the number of breaks. if (event == v8::Break) { break_point_hit_count++; if (!frame_function_name.IsEmpty()) { // Get the name of the function. const int argc = 2; v8::Handle<v8::Value> argv[argc] = { exec_state, v8::Integer::New(0) }; v8::Handle<v8::Value> result = frame_function_name->Call(exec_state, argc, argv); if (result->IsUndefined()) { last_function_hit[0] = '\0'; } else { CHECK(result->IsString()); v8::Handle<v8::String> function_name(result->ToString()); function_name->WriteAscii(last_function_hit); } } if (!frame_source_line.IsEmpty()) { // Get the source line. const int argc = 1; v8::Handle<v8::Value> argv[argc] = { exec_state }; v8::Handle<v8::Value> result = frame_source_line->Call(exec_state, argc, argv); CHECK(result->IsNumber()); last_source_line = result->Int32Value(); } if (!frame_source_column.IsEmpty()) { // Get the source column. const int argc = 1; v8::Handle<v8::Value> argv[argc] = { exec_state }; v8::Handle<v8::Value> result = frame_source_column->Call(exec_state, argc, argv); CHECK(result->IsNumber()); last_source_column = result->Int32Value(); } if (!frame_script_name.IsEmpty()) { // Get the script name of the function script. const int argc = 1; v8::Handle<v8::Value> argv[argc] = { exec_state }; v8::Handle<v8::Value> result = frame_script_name->Call(exec_state, argc, argv); if (result->IsUndefined()) { last_script_name_hit[0] = '\0'; } else { CHECK(result->IsString()); v8::Handle<v8::String> script_name(result->ToString()); script_name->WriteAscii(last_script_name_hit); } } if (!frame_script_data.IsEmpty()) { // Get the script data of the function script. const int argc = 1; v8::Handle<v8::Value> argv[argc] = { exec_state }; v8::Handle<v8::Value> result = frame_script_data->Call(exec_state, argc, argv); if (result->IsUndefined()) { last_script_data_hit[0] = '\0'; } else { result = result->ToString(); CHECK(result->IsString()); v8::Handle<v8::String> script_data(result->ToString()); script_data->WriteAscii(last_script_data_hit); } } // Perform a full deoptimization when the specified number of // breaks have been hit. if (break_point_hit_count == break_point_hit_count_deoptimize) { i::Deoptimizer::DeoptimizeAll(); } } else if (event == v8::AfterCompile && !compiled_script_data.IsEmpty()) { const int argc = 1; v8::Handle<v8::Value> argv[argc] = { event_data }; v8::Handle<v8::Value> result = compiled_script_data->Call(exec_state, argc, argv); if (result->IsUndefined()) { last_script_data_hit[0] = '\0'; } else { result = result->ToString(); CHECK(result->IsString()); v8::Handle<v8::String> script_data(result->ToString()); script_data->WriteAscii(last_script_data_hit); } } } // Debug event handler which counts a number of events and collects the stack // height if there is a function compiled for that. int exception_hit_count = 0; int uncaught_exception_hit_count = 0; int last_js_stack_height = -1; static void DebugEventCounterClear() { break_point_hit_count = 0; exception_hit_count = 0; uncaught_exception_hit_count = 0; } static void DebugEventCounter(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); // When hitting a debug event listener there must be a break set. CHECK_NE(debug->break_id(), 0); // Count the number of breaks. if (event == v8::Break) { break_point_hit_count++; } else if (event == v8::Exception) { exception_hit_count++; // Check whether the exception was uncaught. v8::Local<v8::String> fun_name = v8::String::New("uncaught"); v8::Local<v8::Function> fun = v8::Function::Cast(*event_data->Get(fun_name)); v8::Local<v8::Value> result = *fun->Call(event_data, 0, NULL); if (result->IsTrue()) { uncaught_exception_hit_count++; } } // Collect the JavsScript stack height if the function frame_count is // compiled. if (!frame_count.IsEmpty()) { static const int kArgc = 1; v8::Handle<v8::Value> argv[kArgc] = { exec_state }; // Using exec_state as receiver is just to have a receiver. v8::Handle<v8::Value> result = frame_count->Call(exec_state, kArgc, argv); last_js_stack_height = result->Int32Value(); } } // Debug event handler which evaluates a number of expressions when a break // point is hit. Each evaluated expression is compared with an expected value. // For this debug event handler to work the following two global varaibles // must be initialized. // checks: An array of expressions and expected results // evaluate_check_function: A JavaScript function (see below) // Structure for holding checks to do. struct EvaluateCheck { const char* expr; // An expression to evaluate when a break point is hit. v8::Handle<v8::Value> expected; // The expected result. }; // Array of checks to do. struct EvaluateCheck* checks = NULL; // Source for The JavaScript function which can do the evaluation when a break // point is hit. const char* evaluate_check_source = "function evaluate_check(exec_state, expr, expected) {" " return exec_state.frame(0).evaluate(expr).value() === expected;" "}"; v8::Local<v8::Function> evaluate_check_function; // The actual debug event described by the longer comment above. static void DebugEventEvaluate(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); // When hitting a debug event listener there must be a break set. CHECK_NE(debug->break_id(), 0); if (event == v8::Break) { for (int i = 0; checks[i].expr != NULL; i++) { const int argc = 3; v8::Handle<v8::Value> argv[argc] = { exec_state, v8::String::New(checks[i].expr), checks[i].expected }; v8::Handle<v8::Value> result = evaluate_check_function->Call(exec_state, argc, argv); if (!result->IsTrue()) { v8::String::AsciiValue ascii(checks[i].expected->ToString()); V8_Fatal(__FILE__, __LINE__, "%s != %s", checks[i].expr, *ascii); } } } } // This debug event listener removes a breakpoint in a function int debug_event_remove_break_point = 0; static void DebugEventRemoveBreakPoint(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); // When hitting a debug event listener there must be a break set. CHECK_NE(debug->break_id(), 0); if (event == v8::Break) { break_point_hit_count++; CHECK(data->IsFunction()); ClearBreakPoint(debug_event_remove_break_point); } } // Debug event handler which counts break points hit and performs a step // afterwards. StepAction step_action = StepIn; // Step action to perform when stepping. static void DebugEventStep(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); // When hitting a debug event listener there must be a break set. CHECK_NE(debug->break_id(), 0); if (event == v8::Break) { break_point_hit_count++; PrepareStep(step_action); } } // Debug event handler which counts break points hit and performs a step // afterwards. For each call the expected function is checked. // For this debug event handler to work the following two global varaibles // must be initialized. // expected_step_sequence: An array of the expected function call sequence. // frame_function_name: A JavaScript function (see below). // String containing the expected function call sequence. Note: this only works // if functions have name length of one. const char* expected_step_sequence = NULL; // The actual debug event described by the longer comment above. static void DebugEventStepSequence(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); // When hitting a debug event listener there must be a break set. CHECK_NE(debug->break_id(), 0); if (event == v8::Break || event == v8::Exception) { // Check that the current function is the expected. CHECK(break_point_hit_count < StrLength(expected_step_sequence)); const int argc = 2; v8::Handle<v8::Value> argv[argc] = { exec_state, v8::Integer::New(0) }; v8::Handle<v8::Value> result = frame_function_name->Call(exec_state, argc, argv); CHECK(result->IsString()); v8::String::AsciiValue function_name(result->ToString()); CHECK_EQ(1, StrLength(*function_name)); CHECK_EQ((*function_name)[0], expected_step_sequence[break_point_hit_count]); // Perform step. break_point_hit_count++; PrepareStep(step_action); } } // Debug event handler which performs a garbage collection. static void DebugEventBreakPointCollectGarbage( v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); // When hitting a debug event listener there must be a break set. CHECK_NE(debug->break_id(), 0); // Perform a garbage collection when break point is hit and continue. Based // on the number of break points hit either scavenge or mark compact // collector is used. if (event == v8::Break) { break_point_hit_count++; if (break_point_hit_count % 2 == 0) { // Scavenge. HEAP->CollectGarbage(v8::internal::NEW_SPACE); } else { // Mark sweep compact. HEAP->CollectAllGarbage(Heap::kNoGCFlags); } } } // Debug event handler which re-issues a debug break and calls the garbage // collector to have the heap verified. static void DebugEventBreak(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); // When hitting a debug event listener there must be a break set. CHECK_NE(debug->break_id(), 0); if (event == v8::Break) { // Count the number of breaks. break_point_hit_count++; // Run the garbage collector to enforce heap verification if option // --verify-heap is set. HEAP->CollectGarbage(v8::internal::NEW_SPACE); // Set the break flag again to come back here as soon as possible. v8::Debug::DebugBreak(); } } // Debug event handler which re-issues a debug break until a limit has been // reached. int max_break_point_hit_count = 0; bool terminate_after_max_break_point_hit = false; static void DebugEventBreakMax(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); // When hitting a debug event listener there must be a break set. CHECK_NE(debug->break_id(), 0); if (event == v8::Break) { if (break_point_hit_count < max_break_point_hit_count) { // Count the number of breaks. break_point_hit_count++; // Collect the JavsScript stack height if the function frame_count is // compiled. if (!frame_count.IsEmpty()) { static const int kArgc = 1; v8::Handle<v8::Value> argv[kArgc] = { exec_state }; // Using exec_state as receiver is just to have a receiver. v8::Handle<v8::Value> result = frame_count->Call(exec_state, kArgc, argv); last_js_stack_height = result->Int32Value(); } // Set the break flag again to come back here as soon as possible. v8::Debug::DebugBreak(); } else if (terminate_after_max_break_point_hit) { // Terminate execution after the last break if requested. v8::V8::TerminateExecution(); } // Perform a full deoptimization when the specified number of // breaks have been hit. if (break_point_hit_count == break_point_hit_count_deoptimize) { i::Deoptimizer::DeoptimizeAll(); } } } // --- M e s s a g e C a l l b a c k // Message callback which counts the number of messages. int message_callback_count = 0; static void MessageCallbackCountClear() { message_callback_count = 0; } static void MessageCallbackCount(v8::Handle<v8::Message> message, v8::Handle<v8::Value> data) { message_callback_count++; } // --- T h e A c t u a l T e s t s // Test that the debug break function is the expected one for different kinds // of break locations. TEST(DebugStub) { using ::v8::internal::Builtins; using ::v8::internal::Isolate; v8::HandleScope scope; DebugLocalContext env; CheckDebugBreakFunction(&env, "function f1(){}", "f1", 0, v8::internal::RelocInfo::JS_RETURN, NULL); CheckDebugBreakFunction(&env, "function f2(){x=1;}", "f2", 0, v8::internal::RelocInfo::CODE_TARGET_CONTEXT, Isolate::Current()->builtins()->builtin( Builtins::kStoreIC_DebugBreak)); CheckDebugBreakFunction(&env, "function f3(){var a=x;}", "f3", 0, v8::internal::RelocInfo::CODE_TARGET_CONTEXT, Isolate::Current()->builtins()->builtin( Builtins::kLoadIC_DebugBreak)); // TODO(1240753): Make the test architecture independent or split // parts of the debugger into architecture dependent files. This // part currently disabled as it is not portable between IA32/ARM. // Currently on ICs for keyed store/load on ARM. #if !defined (__arm__) && !defined(__thumb__) CheckDebugBreakFunction( &env, "function f4(){var index='propertyName'; var a={}; a[index] = 'x';}", "f4", 0, v8::internal::RelocInfo::CODE_TARGET, Isolate::Current()->builtins()->builtin( Builtins::kKeyedStoreIC_DebugBreak)); CheckDebugBreakFunction( &env, "function f5(){var index='propertyName'; var a={}; return a[index];}", "f5", 0, v8::internal::RelocInfo::CODE_TARGET, Isolate::Current()->builtins()->builtin( Builtins::kKeyedLoadIC_DebugBreak)); #endif // Check the debug break code stubs for call ICs with different number of // parameters. Handle<Code> debug_break_0 = v8::internal::ComputeCallDebugBreak(0); Handle<Code> debug_break_1 = v8::internal::ComputeCallDebugBreak(1); Handle<Code> debug_break_4 = v8::internal::ComputeCallDebugBreak(4); CheckDebugBreakFunction(&env, "function f4_0(){x();}", "f4_0", 0, v8::internal::RelocInfo::CODE_TARGET_CONTEXT, *debug_break_0); CheckDebugBreakFunction(&env, "function f4_1(){x(1);}", "f4_1", 0, v8::internal::RelocInfo::CODE_TARGET_CONTEXT, *debug_break_1); CheckDebugBreakFunction(&env, "function f4_4(){x(1,2,3,4);}", "f4_4", 0, v8::internal::RelocInfo::CODE_TARGET_CONTEXT, *debug_break_4); } // Test that the debug info in the VM is in sync with the functions being // debugged. TEST(DebugInfo) { v8::HandleScope scope; DebugLocalContext env; // Create a couple of functions for the test. v8::Local<v8::Function> foo = CompileFunction(&env, "function foo(){}", "foo"); v8::Local<v8::Function> bar = CompileFunction(&env, "function bar(){}", "bar"); // Initially no functions are debugged. CHECK_EQ(0, v8::internal::GetDebuggedFunctions()->length()); CHECK(!HasDebugInfo(foo)); CHECK(!HasDebugInfo(bar)); // One function (foo) is debugged. int bp1 = SetBreakPoint(foo, 0); CHECK_EQ(1, v8::internal::GetDebuggedFunctions()->length()); CHECK(HasDebugInfo(foo)); CHECK(!HasDebugInfo(bar)); // Two functions are debugged. int bp2 = SetBreakPoint(bar, 0); CHECK_EQ(2, v8::internal::GetDebuggedFunctions()->length()); CHECK(HasDebugInfo(foo)); CHECK(HasDebugInfo(bar)); // One function (bar) is debugged. ClearBreakPoint(bp1); CHECK_EQ(1, v8::internal::GetDebuggedFunctions()->length()); CHECK(!HasDebugInfo(foo)); CHECK(HasDebugInfo(bar)); // No functions are debugged. ClearBreakPoint(bp2); CHECK_EQ(0, v8::internal::GetDebuggedFunctions()->length()); CHECK(!HasDebugInfo(foo)); CHECK(!HasDebugInfo(bar)); } // Test that a break point can be set at an IC store location. TEST(BreakPointICStore) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Script::Compile(v8::String::New("function foo(){bar=0;}"))->Run(); v8::Local<v8::Function> foo = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo"))); // Run without breakpoints. foo->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Run with breakpoint int bp = SetBreakPoint(foo, 0); foo->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); // Run without breakpoints. ClearBreakPoint(bp); foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that a break point can be set at an IC load location. TEST(BreakPointICLoad) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Script::Compile(v8::String::New("bar=1"))->Run(); v8::Script::Compile(v8::String::New("function foo(){var x=bar;}"))->Run(); v8::Local<v8::Function> foo = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo"))); // Run without breakpoints. foo->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Run with breakpoint. int bp = SetBreakPoint(foo, 0); foo->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); // Run without breakpoints. ClearBreakPoint(bp); foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that a break point can be set at an IC call location. TEST(BreakPointICCall) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Script::Compile(v8::String::New("function bar(){}"))->Run(); v8::Script::Compile(v8::String::New("function foo(){bar();}"))->Run(); v8::Local<v8::Function> foo = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo"))); // Run without breakpoints. foo->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Run with breakpoint int bp = SetBreakPoint(foo, 0); foo->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); // Run without breakpoints. ClearBreakPoint(bp); foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that a break point can be set at an IC call location and survive a GC. TEST(BreakPointICCallWithGC) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetDebugEventListener(DebugEventBreakPointCollectGarbage, v8::Undefined()); v8::Script::Compile(v8::String::New("function bar(){return 1;}"))->Run(); v8::Script::Compile(v8::String::New("function foo(){return bar();}"))->Run(); v8::Local<v8::Function> foo = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo"))); // Run without breakpoints. CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value()); CHECK_EQ(0, break_point_hit_count); // Run with breakpoint. int bp = SetBreakPoint(foo, 0); CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value()); CHECK_EQ(1, break_point_hit_count); CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value()); CHECK_EQ(2, break_point_hit_count); // Run without breakpoints. ClearBreakPoint(bp); foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that a break point can be set at an IC call location and survive a GC. TEST(BreakPointConstructCallWithGC) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetDebugEventListener(DebugEventBreakPointCollectGarbage, v8::Undefined()); v8::Script::Compile(v8::String::New("function bar(){ this.x = 1;}"))->Run(); v8::Script::Compile(v8::String::New( "function foo(){return new bar(1).x;}"))->Run(); v8::Local<v8::Function> foo = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo"))); // Run without breakpoints. CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value()); CHECK_EQ(0, break_point_hit_count); // Run with breakpoint. int bp = SetBreakPoint(foo, 0); CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value()); CHECK_EQ(1, break_point_hit_count); CHECK_EQ(1, foo->Call(env->Global(), 0, NULL)->Int32Value()); CHECK_EQ(2, break_point_hit_count); // Run without breakpoints. ClearBreakPoint(bp); foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that a break point can be set at a return store location. TEST(BreakPointReturn) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; // Create a functions for checking the source line and column when hitting // a break point. frame_source_line = CompileFunction(&env, frame_source_line_source, "frame_source_line"); frame_source_column = CompileFunction(&env, frame_source_column_source, "frame_source_column"); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Script::Compile(v8::String::New("function foo(){}"))->Run(); v8::Local<v8::Function> foo = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo"))); // Run without breakpoints. foo->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Run with breakpoint int bp = SetBreakPoint(foo, 0); foo->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); CHECK_EQ(0, last_source_line); CHECK_EQ(15, last_source_column); foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); CHECK_EQ(0, last_source_line); CHECK_EQ(15, last_source_column); // Run without breakpoints. ClearBreakPoint(bp); foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } static void CallWithBreakPoints(v8::Local<v8::Object> recv, v8::Local<v8::Function> f, int break_point_count, int call_count) { break_point_hit_count = 0; for (int i = 0; i < call_count; i++) { f->Call(recv, 0, NULL); CHECK_EQ((i + 1) * break_point_count, break_point_hit_count); } } // Test GC during break point processing. TEST(GCDuringBreakPointProcessing) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetDebugEventListener(DebugEventBreakPointCollectGarbage, v8::Undefined()); v8::Local<v8::Function> foo; // Test IC store break point with garbage collection. foo = CompileFunction(&env, "function foo(){bar=0;}", "foo"); SetBreakPoint(foo, 0); CallWithBreakPoints(env->Global(), foo, 1, 10); // Test IC load break point with garbage collection. foo = CompileFunction(&env, "bar=1;function foo(){var x=bar;}", "foo"); SetBreakPoint(foo, 0); CallWithBreakPoints(env->Global(), foo, 1, 10); // Test IC call break point with garbage collection. foo = CompileFunction(&env, "function bar(){};function foo(){bar();}", "foo"); SetBreakPoint(foo, 0); CallWithBreakPoints(env->Global(), foo, 1, 10); // Test return break point with garbage collection. foo = CompileFunction(&env, "function foo(){}", "foo"); SetBreakPoint(foo, 0); CallWithBreakPoints(env->Global(), foo, 1, 25); // Test debug break slot break point with garbage collection. foo = CompileFunction(&env, "function foo(){var a;}", "foo"); SetBreakPoint(foo, 0); CallWithBreakPoints(env->Global(), foo, 1, 25); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Call the function three times with different garbage collections in between // and make sure that the break point survives. static void CallAndGC(v8::Local<v8::Object> recv, v8::Local<v8::Function> f) { break_point_hit_count = 0; for (int i = 0; i < 3; i++) { // Call function. f->Call(recv, 0, NULL); CHECK_EQ(1 + i * 3, break_point_hit_count); // Scavenge and call function. HEAP->CollectGarbage(v8::internal::NEW_SPACE); f->Call(recv, 0, NULL); CHECK_EQ(2 + i * 3, break_point_hit_count); // Mark sweep (and perhaps compact) and call function. HEAP->CollectAllGarbage(Heap::kNoGCFlags); f->Call(recv, 0, NULL); CHECK_EQ(3 + i * 3, break_point_hit_count); } } // Test that a break point can be set at a return store location. TEST(BreakPointSurviveGC) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::Function> foo; // Test IC store break point with garbage collection. { CompileFunction(&env, "function foo(){}", "foo"); foo = CompileFunction(&env, "function foo(){bar=0;}", "foo"); SetBreakPoint(foo, 0); } CallAndGC(env->Global(), foo); // Test IC load break point with garbage collection. { CompileFunction(&env, "function foo(){}", "foo"); foo = CompileFunction(&env, "bar=1;function foo(){var x=bar;}", "foo"); SetBreakPoint(foo, 0); } CallAndGC(env->Global(), foo); // Test IC call break point with garbage collection. { CompileFunction(&env, "function foo(){}", "foo"); foo = CompileFunction(&env, "function bar(){};function foo(){bar();}", "foo"); SetBreakPoint(foo, 0); } CallAndGC(env->Global(), foo); // Test return break point with garbage collection. { CompileFunction(&env, "function foo(){}", "foo"); foo = CompileFunction(&env, "function foo(){}", "foo"); SetBreakPoint(foo, 0); } CallAndGC(env->Global(), foo); // Test non IC break point with garbage collection. { CompileFunction(&env, "function foo(){}", "foo"); foo = CompileFunction(&env, "function foo(){var bar=0;}", "foo"); SetBreakPoint(foo, 0); } CallAndGC(env->Global(), foo); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that break points can be set using the global Debug object. TEST(BreakPointThroughJavaScript) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Script::Compile(v8::String::New("function bar(){}"))->Run(); v8::Script::Compile(v8::String::New("function foo(){bar();bar();}"))->Run(); // 012345678901234567890 // 1 2 // Break points are set at position 3 and 9 v8::Local<v8::Script> foo = v8::Script::Compile(v8::String::New("foo()")); // Run without breakpoints. foo->Run(); CHECK_EQ(0, break_point_hit_count); // Run with one breakpoint int bp1 = SetBreakPointFromJS("foo", 0, 3); foo->Run(); CHECK_EQ(1, break_point_hit_count); foo->Run(); CHECK_EQ(2, break_point_hit_count); // Run with two breakpoints int bp2 = SetBreakPointFromJS("foo", 0, 9); foo->Run(); CHECK_EQ(4, break_point_hit_count); foo->Run(); CHECK_EQ(6, break_point_hit_count); // Run with one breakpoint ClearBreakPointFromJS(bp2); foo->Run(); CHECK_EQ(7, break_point_hit_count); foo->Run(); CHECK_EQ(8, break_point_hit_count); // Run without breakpoints. ClearBreakPointFromJS(bp1); foo->Run(); CHECK_EQ(8, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); // Make sure that the break point numbers are consecutive. CHECK_EQ(1, bp1); CHECK_EQ(2, bp2); } // Test that break points on scripts identified by name can be set using the // global Debug object. TEST(ScriptBreakPointByNameThroughJavaScript) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::String> script = v8::String::New( "function f() {\n" " function h() {\n" " a = 0; // line 2\n" " }\n" " b = 1; // line 4\n" " return h();\n" "}\n" "\n" "function g() {\n" " function h() {\n" " a = 0;\n" " }\n" " b = 2; // line 12\n" " h();\n" " b = 3; // line 14\n" " f(); // line 15\n" "}"); // Compile the script and get the two functions. v8::ScriptOrigin origin = v8::ScriptOrigin(v8::String::New("test")); v8::Script::Compile(script, &origin)->Run(); v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); v8::Local<v8::Function> g = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g"))); // Call f and g without break points. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Call f and g with break point on line 12. int sbp1 = SetScriptBreakPointByNameFromJS("test", 12, 0); break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); // Remove the break point again. break_point_hit_count = 0; ClearBreakPointFromJS(sbp1); f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Call f and g with break point on line 2. int sbp2 = SetScriptBreakPointByNameFromJS("test", 2, 0); break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); // Call f and g with break point on line 2, 4, 12, 14 and 15. int sbp3 = SetScriptBreakPointByNameFromJS("test", 4, 0); int sbp4 = SetScriptBreakPointByNameFromJS("test", 12, 0); int sbp5 = SetScriptBreakPointByNameFromJS("test", 14, 0); int sbp6 = SetScriptBreakPointByNameFromJS("test", 15, 0); break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(7, break_point_hit_count); // Remove all the break points again. break_point_hit_count = 0; ClearBreakPointFromJS(sbp2); ClearBreakPointFromJS(sbp3); ClearBreakPointFromJS(sbp4); ClearBreakPointFromJS(sbp5); ClearBreakPointFromJS(sbp6); f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); // Make sure that the break point numbers are consecutive. CHECK_EQ(1, sbp1); CHECK_EQ(2, sbp2); CHECK_EQ(3, sbp3); CHECK_EQ(4, sbp4); CHECK_EQ(5, sbp5); CHECK_EQ(6, sbp6); } TEST(ScriptBreakPointByIdThroughJavaScript) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::String> source = v8::String::New( "function f() {\n" " function h() {\n" " a = 0; // line 2\n" " }\n" " b = 1; // line 4\n" " return h();\n" "}\n" "\n" "function g() {\n" " function h() {\n" " a = 0;\n" " }\n" " b = 2; // line 12\n" " h();\n" " b = 3; // line 14\n" " f(); // line 15\n" "}"); // Compile the script and get the two functions. v8::ScriptOrigin origin = v8::ScriptOrigin(v8::String::New("test")); v8::Local<v8::Script> script = v8::Script::Compile(source, &origin); script->Run(); v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); v8::Local<v8::Function> g = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g"))); // Get the script id knowing that internally it is a 32 integer. uint32_t script_id = script->Id()->Uint32Value(); // Call f and g without break points. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Call f and g with break point on line 12. int sbp1 = SetScriptBreakPointByIdFromJS(script_id, 12, 0); break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); // Remove the break point again. break_point_hit_count = 0; ClearBreakPointFromJS(sbp1); f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Call f and g with break point on line 2. int sbp2 = SetScriptBreakPointByIdFromJS(script_id, 2, 0); break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); // Call f and g with break point on line 2, 4, 12, 14 and 15. int sbp3 = SetScriptBreakPointByIdFromJS(script_id, 4, 0); int sbp4 = SetScriptBreakPointByIdFromJS(script_id, 12, 0); int sbp5 = SetScriptBreakPointByIdFromJS(script_id, 14, 0); int sbp6 = SetScriptBreakPointByIdFromJS(script_id, 15, 0); break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(7, break_point_hit_count); // Remove all the break points again. break_point_hit_count = 0; ClearBreakPointFromJS(sbp2); ClearBreakPointFromJS(sbp3); ClearBreakPointFromJS(sbp4); ClearBreakPointFromJS(sbp5); ClearBreakPointFromJS(sbp6); f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); // Make sure that the break point numbers are consecutive. CHECK_EQ(1, sbp1); CHECK_EQ(2, sbp2); CHECK_EQ(3, sbp3); CHECK_EQ(4, sbp4); CHECK_EQ(5, sbp5); CHECK_EQ(6, sbp6); } // Test conditional script break points. TEST(EnableDisableScriptBreakPoint) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::String> script = v8::String::New( "function f() {\n" " a = 0; // line 1\n" "};"); // Compile the script and get function f. v8::ScriptOrigin origin = v8::ScriptOrigin(v8::String::New("test")); v8::Script::Compile(script, &origin)->Run(); v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); // Set script break point on line 1 (in function f). int sbp = SetScriptBreakPointByNameFromJS("test", 1, 0); // Call f while enabeling and disabling the script break point. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); DisableScriptBreakPointFromJS(sbp); f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); EnableScriptBreakPointFromJS(sbp); f->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); DisableScriptBreakPointFromJS(sbp); f->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); // Reload the script and get f again checking that the disabeling survives. v8::Script::Compile(script, &origin)->Run(); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); f->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); EnableScriptBreakPointFromJS(sbp); f->Call(env->Global(), 0, NULL); CHECK_EQ(3, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test conditional script break points. TEST(ConditionalScriptBreakPoint) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::String> script = v8::String::New( "count = 0;\n" "function f() {\n" " g(count++); // line 2\n" "};\n" "function g(x) {\n" " var a=x; // line 5\n" "};"); // Compile the script and get function f. v8::ScriptOrigin origin = v8::ScriptOrigin(v8::String::New("test")); v8::Script::Compile(script, &origin)->Run(); v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); // Set script break point on line 5 (in function g). int sbp1 = SetScriptBreakPointByNameFromJS("test", 5, 0); // Call f with different conditions on the script break point. break_point_hit_count = 0; ChangeScriptBreakPointConditionFromJS(sbp1, "false"); f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); ChangeScriptBreakPointConditionFromJS(sbp1, "true"); break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); ChangeScriptBreakPointConditionFromJS(sbp1, "x % 2 == 0"); break_point_hit_count = 0; for (int i = 0; i < 10; i++) { f->Call(env->Global(), 0, NULL); } CHECK_EQ(5, break_point_hit_count); // Reload the script and get f again checking that the condition survives. v8::Script::Compile(script, &origin)->Run(); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); break_point_hit_count = 0; for (int i = 0; i < 10; i++) { f->Call(env->Global(), 0, NULL); } CHECK_EQ(5, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test ignore count on script break points. TEST(ScriptBreakPointIgnoreCount) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::String> script = v8::String::New( "function f() {\n" " a = 0; // line 1\n" "};"); // Compile the script and get function f. v8::ScriptOrigin origin = v8::ScriptOrigin(v8::String::New("test")); v8::Script::Compile(script, &origin)->Run(); v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); // Set script break point on line 1 (in function f). int sbp = SetScriptBreakPointByNameFromJS("test", 1, 0); // Call f with different ignores on the script break point. break_point_hit_count = 0; ChangeScriptBreakPointIgnoreCountFromJS(sbp, 1); f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); ChangeScriptBreakPointIgnoreCountFromJS(sbp, 5); break_point_hit_count = 0; for (int i = 0; i < 10; i++) { f->Call(env->Global(), 0, NULL); } CHECK_EQ(5, break_point_hit_count); // Reload the script and get f again checking that the ignore survives. v8::Script::Compile(script, &origin)->Run(); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); break_point_hit_count = 0; for (int i = 0; i < 10; i++) { f->Call(env->Global(), 0, NULL); } CHECK_EQ(5, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that script break points survive when a script is reloaded. TEST(ScriptBreakPointReload) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::Function> f; v8::Local<v8::String> script = v8::String::New( "function f() {\n" " function h() {\n" " a = 0; // line 2\n" " }\n" " b = 1; // line 4\n" " return h();\n" "}"); v8::ScriptOrigin origin_1 = v8::ScriptOrigin(v8::String::New("1")); v8::ScriptOrigin origin_2 = v8::ScriptOrigin(v8::String::New("2")); // Set a script break point before the script is loaded. SetScriptBreakPointByNameFromJS("1", 2, 0); // Compile the script and get the function. v8::Script::Compile(script, &origin_1)->Run(); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); // Call f and check that the script break point is active. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); // Compile the script again with a different script data and get the // function. v8::Script::Compile(script, &origin_2)->Run(); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); // Call f and check that no break points are set. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Compile the script again and get the function. v8::Script::Compile(script, &origin_1)->Run(); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); // Call f and check that the script break point is active. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test when several scripts has the same script data TEST(ScriptBreakPointMultiple) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::Function> f; v8::Local<v8::String> script_f = v8::String::New( "function f() {\n" " a = 0; // line 1\n" "}"); v8::Local<v8::Function> g; v8::Local<v8::String> script_g = v8::String::New( "function g() {\n" " b = 0; // line 1\n" "}"); v8::ScriptOrigin origin = v8::ScriptOrigin(v8::String::New("test")); // Set a script break point before the scripts are loaded. int sbp = SetScriptBreakPointByNameFromJS("test", 1, 0); // Compile the scripts with same script data and get the functions. v8::Script::Compile(script_f, &origin)->Run(); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); v8::Script::Compile(script_g, &origin)->Run(); g = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g"))); // Call f and g and check that the script break point is active. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); // Clear the script break point. ClearBreakPointFromJS(sbp); // Call f and g and check that the script break point is no longer active. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Set script break point with the scripts loaded. sbp = SetScriptBreakPointByNameFromJS("test", 1, 0); // Call f and g and check that the script break point is active. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); g->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test the script origin which has both name and line offset. TEST(ScriptBreakPointLineOffset) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::Function> f; v8::Local<v8::String> script = v8::String::New( "function f() {\n" " a = 0; // line 8 as this script has line offset 7\n" " b = 0; // line 9 as this script has line offset 7\n" "}"); // Create script origin both name and line offset. v8::ScriptOrigin origin(v8::String::New("test.html"), v8::Integer::New(7)); // Set two script break points before the script is loaded. int sbp1 = SetScriptBreakPointByNameFromJS("test.html", 8, 0); int sbp2 = SetScriptBreakPointByNameFromJS("test.html", 9, 0); // Compile the script and get the function. v8::Script::Compile(script, &origin)->Run(); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); // Call f and check that the script break point is active. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); // Clear the script break points. ClearBreakPointFromJS(sbp1); ClearBreakPointFromJS(sbp2); // Call f and check that no script break points are active. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Set a script break point with the script loaded. sbp1 = SetScriptBreakPointByNameFromJS("test.html", 9, 0); // Call f and check that the script break point is active. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test script break points set on lines. TEST(ScriptBreakPointLine) { v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); // Create a function for checking the function when hitting a break point. frame_function_name = CompileFunction(&env, frame_function_name_source, "frame_function_name"); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::Function> f; v8::Local<v8::Function> g; v8::Local<v8::String> script = v8::String::New( "a = 0 // line 0\n" "function f() {\n" " a = 1; // line 2\n" "}\n" " a = 2; // line 4\n" " /* xx */ function g() { // line 5\n" " function h() { // line 6\n" " a = 3; // line 7\n" " }\n" " h(); // line 9\n" " a = 4; // line 10\n" " }\n" " a=5; // line 12"); // Set a couple script break point before the script is loaded. int sbp1 = SetScriptBreakPointByNameFromJS("test.html", 0, -1); int sbp2 = SetScriptBreakPointByNameFromJS("test.html", 1, -1); int sbp3 = SetScriptBreakPointByNameFromJS("test.html", 5, -1); // Compile the script and get the function. break_point_hit_count = 0; v8::ScriptOrigin origin(v8::String::New("test.html"), v8::Integer::New(0)); v8::Script::Compile(script, &origin)->Run(); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); g = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g"))); // Check that a break point was hit when the script was run. CHECK_EQ(1, break_point_hit_count); CHECK_EQ(0, StrLength(last_function_hit)); // Call f and check that the script break point. f->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); CHECK_EQ("f", last_function_hit); // Call g and check that the script break point. g->Call(env->Global(), 0, NULL); CHECK_EQ(3, break_point_hit_count); CHECK_EQ("g", last_function_hit); // Clear the script break point on g and set one on h. ClearBreakPointFromJS(sbp3); int sbp4 = SetScriptBreakPointByNameFromJS("test.html", 6, -1); // Call g and check that the script break point in h is hit. g->Call(env->Global(), 0, NULL); CHECK_EQ(4, break_point_hit_count); CHECK_EQ("h", last_function_hit); // Clear break points in f and h. Set a new one in the script between // functions f and g and test that there is no break points in f and g any // more. ClearBreakPointFromJS(sbp2); ClearBreakPointFromJS(sbp4); int sbp5 = SetScriptBreakPointByNameFromJS("test.html", 4, -1); break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); g->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Reload the script which should hit two break points. break_point_hit_count = 0; v8::Script::Compile(script, &origin)->Run(); CHECK_EQ(2, break_point_hit_count); CHECK_EQ(0, StrLength(last_function_hit)); // Set a break point in the code after the last function decleration. int sbp6 = SetScriptBreakPointByNameFromJS("test.html", 12, -1); // Reload the script which should hit three break points. break_point_hit_count = 0; v8::Script::Compile(script, &origin)->Run(); CHECK_EQ(3, break_point_hit_count); CHECK_EQ(0, StrLength(last_function_hit)); // Clear the last break points, and reload the script which should not hit any // break points. ClearBreakPointFromJS(sbp1); ClearBreakPointFromJS(sbp5); ClearBreakPointFromJS(sbp6); break_point_hit_count = 0; v8::Script::Compile(script, &origin)->Run(); CHECK_EQ(0, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test top level script break points set on lines. TEST(ScriptBreakPointLineTopLevel) { v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::String> script = v8::String::New( "function f() {\n" " a = 1; // line 1\n" "}\n" "a = 2; // line 3\n"); v8::Local<v8::Function> f; { v8::HandleScope scope; v8::Script::Compile(script, v8::String::New("test.html"))->Run(); } f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); HEAP->CollectAllGarbage(Heap::kNoGCFlags); SetScriptBreakPointByNameFromJS("test.html", 3, -1); // Call f and check that there was no break points. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Recompile and run script and check that break point was hit. break_point_hit_count = 0; v8::Script::Compile(script, v8::String::New("test.html"))->Run(); CHECK_EQ(1, break_point_hit_count); // Call f and check that there are still no break points. break_point_hit_count = 0; f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); CHECK_EQ(0, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that it is possible to add and remove break points in a top level // function which has no references but has not been collected yet. TEST(ScriptBreakPointTopLevelCrash) { v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Local<v8::String> script_source = v8::String::New( "function f() {\n" " return 0;\n" "}\n" "f()"); int sbp1 = SetScriptBreakPointByNameFromJS("test.html", 3, -1); { v8::HandleScope scope; break_point_hit_count = 0; v8::Script::Compile(script_source, v8::String::New("test.html"))->Run(); CHECK_EQ(1, break_point_hit_count); } int sbp2 = SetScriptBreakPointByNameFromJS("test.html", 3, -1); ClearBreakPointFromJS(sbp1); ClearBreakPointFromJS(sbp2); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that it is possible to remove the last break point for a function // inside the break handling of that break point. TEST(RemoveBreakPointInBreak) { v8::HandleScope scope; DebugLocalContext env; v8::Local<v8::Function> foo = CompileFunction(&env, "function foo(){a=1;}", "foo"); debug_event_remove_break_point = SetBreakPoint(foo, 0); // Register the debug event listener pasing the function v8::Debug::SetDebugEventListener(DebugEventRemoveBreakPoint, foo); break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that the debugger statement causes a break. TEST(DebuggerStatement) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Script::Compile(v8::String::New("function bar(){debugger}"))->Run(); v8::Script::Compile(v8::String::New( "function foo(){debugger;debugger;}"))->Run(); v8::Local<v8::Function> foo = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo"))); v8::Local<v8::Function> bar = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("bar"))); // Run function with debugger statement bar->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); // Run function with two debugger statement foo->Call(env->Global(), 0, NULL); CHECK_EQ(3, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test setting a breakpoint on the debugger statement. TEST(DebuggerStatementBreakpoint) { break_point_hit_count = 0; v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); v8::Script::Compile(v8::String::New("function foo(){debugger;}"))->Run(); v8::Local<v8::Function> foo = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("foo"))); // The debugger statement triggers breakpint hit foo->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); int bp = SetBreakPoint(foo, 0); // Set breakpoint does not duplicate hits foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); ClearBreakPoint(bp); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Thest that the evaluation of expressions when a break point is hit generates // the correct results. TEST(DebugEvaluate) { v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); // Create a function for checking the evaluation when hitting a break point. evaluate_check_function = CompileFunction(&env, evaluate_check_source, "evaluate_check"); // Register the debug event listener v8::Debug::SetDebugEventListener(DebugEventEvaluate); // Different expected vaules of x and a when in a break point (u = undefined, // d = Hello, world!). struct EvaluateCheck checks_uu[] = { {"x", v8::Undefined()}, {"a", v8::Undefined()}, {NULL, v8::Handle<v8::Value>()} }; struct EvaluateCheck checks_hu[] = { {"x", v8::String::New("Hello, world!")}, {"a", v8::Undefined()}, {NULL, v8::Handle<v8::Value>()} }; struct EvaluateCheck checks_hh[] = { {"x", v8::String::New("Hello, world!")}, {"a", v8::String::New("Hello, world!")}, {NULL, v8::Handle<v8::Value>()} }; // Simple test function. The "y=0" is in the function foo to provide a break // location. For "y=0" the "y" is at position 15 in the barbar function // therefore setting breakpoint at position 15 will break at "y=0" and // setting it higher will break after. v8::Local<v8::Function> foo = CompileFunction(&env, "function foo(x) {" " var a;" " y=0;" // To ensure break location 1. " a=x;" " y=0;" // To ensure break location 2. "}", "foo"); const int foo_break_position_1 = 15; const int foo_break_position_2 = 29; // Arguments with one parameter "Hello, world!" v8::Handle<v8::Value> argv_foo[1] = { v8::String::New("Hello, world!") }; // Call foo with breakpoint set before a=x and undefined as parameter. int bp = SetBreakPoint(foo, foo_break_position_1); checks = checks_uu; foo->Call(env->Global(), 0, NULL); // Call foo with breakpoint set before a=x and parameter "Hello, world!". checks = checks_hu; foo->Call(env->Global(), 1, argv_foo); // Call foo with breakpoint set after a=x and parameter "Hello, world!". ClearBreakPoint(bp); SetBreakPoint(foo, foo_break_position_2); checks = checks_hh; foo->Call(env->Global(), 1, argv_foo); // Test function with an inner function. The "y=0" is in function barbar // to provide a break location. For "y=0" the "y" is at position 8 in the // barbar function therefore setting breakpoint at position 8 will break at // "y=0" and setting it higher will break after. v8::Local<v8::Function> bar = CompileFunction(&env, "y = 0;" "x = 'Goodbye, world!';" "function bar(x, b) {" " var a;" " function barbar() {" " y=0; /* To ensure break location.*/" " a=x;" " };" " debug.Debug.clearAllBreakPoints();" " barbar();" " y=0;a=x;" "}", "bar"); const int barbar_break_position = 8; // Call bar setting breakpoint before a=x in barbar and undefined as // parameter. checks = checks_uu; v8::Handle<v8::Value> argv_bar_1[2] = { v8::Undefined(), v8::Number::New(barbar_break_position) }; bar->Call(env->Global(), 2, argv_bar_1); // Call bar setting breakpoint before a=x in barbar and parameter // "Hello, world!". checks = checks_hu; v8::Handle<v8::Value> argv_bar_2[2] = { v8::String::New("Hello, world!"), v8::Number::New(barbar_break_position) }; bar->Call(env->Global(), 2, argv_bar_2); // Call bar setting breakpoint after a=x in barbar and parameter // "Hello, world!". checks = checks_hh; v8::Handle<v8::Value> argv_bar_3[2] = { v8::String::New("Hello, world!"), v8::Number::New(barbar_break_position + 1) }; bar->Call(env->Global(), 2, argv_bar_3); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Copies a C string to a 16-bit string. Does not check for buffer overflow. // Does not use the V8 engine to convert strings, so it can be used // in any thread. Returns the length of the string. int AsciiToUtf16(const char* input_buffer, uint16_t* output_buffer) { int i; for (i = 0; input_buffer[i] != '\0'; ++i) { // ASCII does not use chars > 127, but be careful anyway. output_buffer[i] = static_cast<unsigned char>(input_buffer[i]); } output_buffer[i] = 0; return i; } // Copies a 16-bit string to a C string by dropping the high byte of // each character. Does not check for buffer overflow. // Can be used in any thread. Requires string length as an input. int Utf16ToAscii(const uint16_t* input_buffer, int length, char* output_buffer, int output_len = -1) { if (output_len >= 0) { if (length > output_len - 1) { length = output_len - 1; } } for (int i = 0; i < length; ++i) { output_buffer[i] = static_cast<char>(input_buffer[i]); } output_buffer[length] = '\0'; return length; } // We match parts of the message to get evaluate result int value. bool GetEvaluateStringResult(char *message, char* buffer, int buffer_size) { if (strstr(message, "\"command\":\"evaluate\"") == NULL) { return false; } const char* prefix = "\"text\":\""; char* pos1 = strstr(message, prefix); if (pos1 == NULL) { return false; } pos1 += strlen(prefix); char* pos2 = strchr(pos1, '"'); if (pos2 == NULL) { return false; } Vector<char> buf(buffer, buffer_size); int len = static_cast<int>(pos2 - pos1); if (len > buffer_size - 1) { len = buffer_size - 1; } OS::StrNCpy(buf, pos1, len); buffer[buffer_size - 1] = '\0'; return true; } struct EvaluateResult { static const int kBufferSize = 20; char buffer[kBufferSize]; }; struct DebugProcessDebugMessagesData { static const int kArraySize = 5; int counter; EvaluateResult results[kArraySize]; void reset() { counter = 0; } EvaluateResult* current() { return &results[counter % kArraySize]; } void next() { counter++; } }; DebugProcessDebugMessagesData process_debug_messages_data; static void DebugProcessDebugMessagesHandler( const uint16_t* message, int length, v8::Debug::ClientData* client_data) { const int kBufferSize = 100000; char print_buffer[kBufferSize]; Utf16ToAscii(message, length, print_buffer, kBufferSize); EvaluateResult* array_item = process_debug_messages_data.current(); bool res = GetEvaluateStringResult(print_buffer, array_item->buffer, EvaluateResult::kBufferSize); if (res) { process_debug_messages_data.next(); } } // Test that the evaluation of expressions works even from ProcessDebugMessages // i.e. with empty stack. TEST(DebugEvaluateWithoutStack) { v8::Debug::SetMessageHandler(DebugProcessDebugMessagesHandler); v8::HandleScope scope; DebugLocalContext env; const char* source = "var v1 = 'Pinguin';\n function getAnimal() { return 'Capy' + 'bara'; }"; v8::Script::Compile(v8::String::New(source))->Run(); v8::Debug::ProcessDebugMessages(); const int kBufferSize = 1000; uint16_t buffer[kBufferSize]; const char* command_111 = "{\"seq\":111," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{" " \"global\":true," " \"expression\":\"v1\",\"disable_break\":true" "}}"; v8::Debug::SendCommand(buffer, AsciiToUtf16(command_111, buffer)); const char* command_112 = "{\"seq\":112," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{" " \"global\":true," " \"expression\":\"getAnimal()\",\"disable_break\":true" "}}"; v8::Debug::SendCommand(buffer, AsciiToUtf16(command_112, buffer)); const char* command_113 = "{\"seq\":113," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{" " \"global\":true," " \"expression\":\"239 + 566\",\"disable_break\":true" "}}"; v8::Debug::SendCommand(buffer, AsciiToUtf16(command_113, buffer)); v8::Debug::ProcessDebugMessages(); CHECK_EQ(3, process_debug_messages_data.counter); CHECK_EQ(strcmp("Pinguin", process_debug_messages_data.results[0].buffer), 0); CHECK_EQ(strcmp("Capybara", process_debug_messages_data.results[1].buffer), 0); CHECK_EQ(strcmp("805", process_debug_messages_data.results[2].buffer), 0); v8::Debug::SetMessageHandler(NULL); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Simple test of the stepping mechanism using only store ICs. TEST(DebugStepLinear) { v8::HandleScope scope; DebugLocalContext env; // Create a function for testing stepping. v8::Local<v8::Function> foo = CompileFunction(&env, "function foo(){a=1;b=1;c=1;}", "foo"); // Run foo to allow it to get optimized. CompileRun("a=0; b=0; c=0; foo();"); SetBreakPoint(foo, 3); // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); step_action = StepIn; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); // With stepping all break locations are hit. CHECK_EQ(4, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); // Register a debug event listener which just counts. v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount); SetBreakPoint(foo, 3); break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); // Without stepping only active break points are hit. CHECK_EQ(1, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test of the stepping mechanism for keyed load in a loop. TEST(DebugStepKeyedLoadLoop) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping of keyed load. The statement 'y=1' // is there to have more than one breakable statement in the loop, TODO(315). v8::Local<v8::Function> foo = CompileFunction( &env, "function foo(a) {\n" " var x;\n" " var len = a.length;\n" " for (var i = 0; i < len; i++) {\n" " y = 1;\n" " x = a[i];\n" " }\n" "}\n" "y=0\n", "foo"); // Create array [0,1,2,3,4,5,6,7,8,9] v8::Local<v8::Array> a = v8::Array::New(10); for (int i = 0; i < 10; i++) { a->Set(v8::Number::New(i), v8::Number::New(i)); } // Call function without any break points to ensure inlining is in place. const int kArgc = 1; v8::Handle<v8::Value> args[kArgc] = { a }; foo->Call(env->Global(), kArgc, args); // Set up break point and step through the function. SetBreakPoint(foo, 3); step_action = StepNext; break_point_hit_count = 0; foo->Call(env->Global(), kArgc, args); // With stepping all break locations are hit. CHECK_EQ(34, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test of the stepping mechanism for keyed store in a loop. TEST(DebugStepKeyedStoreLoop) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping of keyed store. The statement 'y=1' // is there to have more than one breakable statement in the loop, TODO(315). v8::Local<v8::Function> foo = CompileFunction( &env, "function foo(a) {\n" " var len = a.length;\n" " for (var i = 0; i < len; i++) {\n" " y = 1;\n" " a[i] = 42;\n" " }\n" "}\n" "y=0\n", "foo"); // Create array [0,1,2,3,4,5,6,7,8,9] v8::Local<v8::Array> a = v8::Array::New(10); for (int i = 0; i < 10; i++) { a->Set(v8::Number::New(i), v8::Number::New(i)); } // Call function without any break points to ensure inlining is in place. const int kArgc = 1; v8::Handle<v8::Value> args[kArgc] = { a }; foo->Call(env->Global(), kArgc, args); // Set up break point and step through the function. SetBreakPoint(foo, 3); step_action = StepNext; break_point_hit_count = 0; foo->Call(env->Global(), kArgc, args); // With stepping all break locations are hit. CHECK_EQ(33, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test of the stepping mechanism for named load in a loop. TEST(DebugStepNamedLoadLoop) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping of named load. v8::Local<v8::Function> foo = CompileFunction( &env, "function foo() {\n" " var a = [];\n" " var s = \"\";\n" " for (var i = 0; i < 10; i++) {\n" " var v = new V(i, i + 1);\n" " v.y;\n" " a.length;\n" // Special case: array length. " s.length;\n" // Special case: string length. " }\n" "}\n" "function V(x, y) {\n" " this.x = x;\n" " this.y = y;\n" "}\n", "foo"); // Call function without any break points to ensure inlining is in place. foo->Call(env->Global(), 0, NULL); // Set up break point and step through the function. SetBreakPoint(foo, 4); step_action = StepNext; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); // With stepping all break locations are hit. CHECK_EQ(54, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } static void DoDebugStepNamedStoreLoop(int expected) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping of named store. v8::Local<v8::Function> foo = CompileFunction( &env, "function foo() {\n" " var a = {a:1};\n" " for (var i = 0; i < 10; i++) {\n" " a.a = 2\n" " }\n" "}\n", "foo"); // Call function without any break points to ensure inlining is in place. foo->Call(env->Global(), 0, NULL); // Set up break point and step through the function. SetBreakPoint(foo, 3); step_action = StepNext; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); // With stepping all expected break locations are hit. CHECK_EQ(expected, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test of the stepping mechanism for named load in a loop. TEST(DebugStepNamedStoreLoop) { DoDebugStepNamedStoreLoop(23); } // Test the stepping mechanism with different ICs. TEST(DebugStepLinearMixedICs) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. v8::Local<v8::Function> foo = CompileFunction(&env, "function bar() {};" "function foo() {" " var x;" " var index='name';" " var y = {};" " a=1;b=2;x=a;y[index]=3;x=y[index];bar();}", "foo"); // Run functions to allow them to get optimized. CompileRun("a=0; b=0; bar(); foo();"); SetBreakPoint(foo, 0); step_action = StepIn; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); // With stepping all break locations are hit. CHECK_EQ(11, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); // Register a debug event listener which just counts. v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount); SetBreakPoint(foo, 0); break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); // Without stepping only active break points are hit. CHECK_EQ(1, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugStepDeclarations) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. const char* src = "function foo() { " " var a;" " var b = 1;" " var c = foo;" " var d = Math.floor;" " var e = b + d(1.2);" "}" "foo()"; v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo"); SetBreakPoint(foo, 0); // Stepping through the declarations. step_action = StepIn; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); CHECK_EQ(6, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugStepLocals) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. const char* src = "function foo() { " " var a,b;" " a = 1;" " b = a + 2;" " b = 1 + 2 + 3;" " a = Math.floor(b);" "}" "foo()"; v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo"); SetBreakPoint(foo, 0); // Stepping through the declarations. step_action = StepIn; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); CHECK_EQ(6, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugStepIf) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. const int argc = 1; const char* src = "function foo(x) { " " a = 1;" " if (x) {" " b = 1;" " } else {" " c = 1;" " d = 1;" " }" "}" "a=0; b=0; c=0; d=0; foo()"; v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo"); SetBreakPoint(foo, 0); // Stepping through the true part. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_true[argc] = { v8::True() }; foo->Call(env->Global(), argc, argv_true); CHECK_EQ(4, break_point_hit_count); // Stepping through the false part. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_false[argc] = { v8::False() }; foo->Call(env->Global(), argc, argv_false); CHECK_EQ(5, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugStepSwitch) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. const int argc = 1; const char* src = "function foo(x) { " " a = 1;" " switch (x) {" " case 1:" " b = 1;" " case 2:" " c = 1;" " break;" " case 3:" " d = 1;" " e = 1;" " f = 1;" " break;" " }" "}" "a=0; b=0; c=0; d=0; e=0; f=0; foo()"; v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo"); SetBreakPoint(foo, 0); // One case with fall-through. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_1[argc] = { v8::Number::New(1) }; foo->Call(env->Global(), argc, argv_1); CHECK_EQ(6, break_point_hit_count); // Another case. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_2[argc] = { v8::Number::New(2) }; foo->Call(env->Global(), argc, argv_2); CHECK_EQ(5, break_point_hit_count); // Last case. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_3[argc] = { v8::Number::New(3) }; foo->Call(env->Global(), argc, argv_3); CHECK_EQ(7, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugStepWhile) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. const int argc = 1; const char* src = "function foo(x) { " " var a = 0;" " while (a < x) {" " a++;" " }" "}" "foo()"; v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo"); SetBreakPoint(foo, 8); // "var a = 0;" // Looping 10 times. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_10[argc] = { v8::Number::New(10) }; foo->Call(env->Global(), argc, argv_10); CHECK_EQ(22, break_point_hit_count); // Looping 100 times. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_100[argc] = { v8::Number::New(100) }; foo->Call(env->Global(), argc, argv_100); CHECK_EQ(202, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugStepDoWhile) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. const int argc = 1; const char* src = "function foo(x) { " " var a = 0;" " do {" " a++;" " } while (a < x)" "}" "foo()"; v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo"); SetBreakPoint(foo, 8); // "var a = 0;" // Looping 10 times. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_10[argc] = { v8::Number::New(10) }; foo->Call(env->Global(), argc, argv_10); CHECK_EQ(22, break_point_hit_count); // Looping 100 times. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_100[argc] = { v8::Number::New(100) }; foo->Call(env->Global(), argc, argv_100); CHECK_EQ(202, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugStepFor) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. const int argc = 1; const char* src = "function foo(x) { " " a = 1;" " for (i = 0; i < x; i++) {" " b = 1;" " }" "}" "a=0; b=0; i=0; foo()"; v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo"); SetBreakPoint(foo, 8); // "a = 1;" // Looping 10 times. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_10[argc] = { v8::Number::New(10) }; foo->Call(env->Global(), argc, argv_10); CHECK_EQ(23, break_point_hit_count); // Looping 100 times. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_100[argc] = { v8::Number::New(100) }; foo->Call(env->Global(), argc, argv_100); CHECK_EQ(203, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugStepForContinue) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. const int argc = 1; const char* src = "function foo(x) { " " var a = 0;" " var b = 0;" " var c = 0;" " for (var i = 0; i < x; i++) {" " a++;" " if (a % 2 == 0) continue;" " b++;" " c++;" " }" " return b;" "}" "foo()"; v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo"); v8::Handle<v8::Value> result; SetBreakPoint(foo, 8); // "var a = 0;" // Each loop generates 4 or 5 steps depending on whether a is equal. // Looping 10 times. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_10[argc] = { v8::Number::New(10) }; result = foo->Call(env->Global(), argc, argv_10); CHECK_EQ(5, result->Int32Value()); CHECK_EQ(51, break_point_hit_count); // Looping 100 times. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_100[argc] = { v8::Number::New(100) }; result = foo->Call(env->Global(), argc, argv_100); CHECK_EQ(50, result->Int32Value()); CHECK_EQ(456, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugStepForBreak) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. const int argc = 1; const char* src = "function foo(x) { " " var a = 0;" " var b = 0;" " var c = 0;" " for (var i = 0; i < 1000; i++) {" " a++;" " if (a == x) break;" " b++;" " c++;" " }" " return b;" "}" "foo()"; v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo"); v8::Handle<v8::Value> result; SetBreakPoint(foo, 8); // "var a = 0;" // Each loop generates 5 steps except for the last (when break is executed) // which only generates 4. // Looping 10 times. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_10[argc] = { v8::Number::New(10) }; result = foo->Call(env->Global(), argc, argv_10); CHECK_EQ(9, result->Int32Value()); CHECK_EQ(54, break_point_hit_count); // Looping 100 times. step_action = StepIn; break_point_hit_count = 0; v8::Handle<v8::Value> argv_100[argc] = { v8::Number::New(100) }; result = foo->Call(env->Global(), argc, argv_100); CHECK_EQ(99, result->Int32Value()); CHECK_EQ(504, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugStepForIn) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. v8::Local<v8::Function> foo; const char* src_1 = "function foo() { " " var a = [1, 2];" " for (x in a) {" " b = 0;" " }" "}" "foo()"; foo = CompileFunction(&env, src_1, "foo"); SetBreakPoint(foo, 0); // "var a = ..." step_action = StepIn; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); CHECK_EQ(6, break_point_hit_count); // Create a function for testing stepping. Run it to allow it to get // optimized. const char* src_2 = "function foo() { " " var a = {a:[1, 2, 3]};" " for (x in a.a) {" " b = 0;" " }" "}" "foo()"; foo = CompileFunction(&env, src_2, "foo"); SetBreakPoint(foo, 0); // "var a = ..." step_action = StepIn; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); CHECK_EQ(8, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugStepWith) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. const char* src = "function foo(x) { " " var a = {};" " with (a) {}" " with (b) {}" "}" "foo()"; env->Global()->Set(v8::String::New("b"), v8::Object::New()); v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo"); v8::Handle<v8::Value> result; SetBreakPoint(foo, 8); // "var a = {};" step_action = StepIn; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); CHECK_EQ(4, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugConditional) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); // Create a function for testing stepping. Run it to allow it to get // optimized. const char* src = "function foo(x) { " " var a;" " a = x ? 1 : 2;" " return a;" "}" "foo()"; v8::Local<v8::Function> foo = CompileFunction(&env, src, "foo"); SetBreakPoint(foo, 0); // "var a;" step_action = StepIn; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); CHECK_EQ(5, break_point_hit_count); step_action = StepIn; break_point_hit_count = 0; const int argc = 1; v8::Handle<v8::Value> argv_true[argc] = { v8::True() }; foo->Call(env->Global(), argc, argv_true); CHECK_EQ(5, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(StepInOutSimple) { v8::HandleScope scope; DebugLocalContext env; // Create a function for checking the function when hitting a break point. frame_function_name = CompileFunction(&env, frame_function_name_source, "frame_function_name"); // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStepSequence); // Create a function for testing stepping. Run it to allow it to get // optimized. const char* src = "function a() {b();c();}; " "function b() {c();}; " "function c() {}; " "a(); b(); c()"; v8::Local<v8::Function> a = CompileFunction(&env, src, "a"); SetBreakPoint(a, 0); // Step through invocation of a with step in. step_action = StepIn; break_point_hit_count = 0; expected_step_sequence = "abcbaca"; a->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Step through invocation of a with step next. step_action = StepNext; break_point_hit_count = 0; expected_step_sequence = "aaa"; a->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Step through invocation of a with step out. step_action = StepOut; break_point_hit_count = 0; expected_step_sequence = "a"; a->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(StepInOutTree) { v8::HandleScope scope; DebugLocalContext env; // Create a function for checking the function when hitting a break point. frame_function_name = CompileFunction(&env, frame_function_name_source, "frame_function_name"); // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStepSequence); // Create a function for testing stepping. Run it to allow it to get // optimized. const char* src = "function a() {b(c(d()),d());c(d());d()}; " "function b(x,y) {c();}; " "function c(x) {}; " "function d() {}; " "a(); b(); c(); d()"; v8::Local<v8::Function> a = CompileFunction(&env, src, "a"); SetBreakPoint(a, 0); // Step through invocation of a with step in. step_action = StepIn; break_point_hit_count = 0; expected_step_sequence = "adacadabcbadacada"; a->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Step through invocation of a with step next. step_action = StepNext; break_point_hit_count = 0; expected_step_sequence = "aaaa"; a->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Step through invocation of a with step out. step_action = StepOut; break_point_hit_count = 0; expected_step_sequence = "a"; a->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(true); } TEST(StepInOutBranch) { v8::HandleScope scope; DebugLocalContext env; // Create a function for checking the function when hitting a break point. frame_function_name = CompileFunction(&env, frame_function_name_source, "frame_function_name"); // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStepSequence); // Create a function for testing stepping. Run it to allow it to get // optimized. const char* src = "function a() {b(false);c();}; " "function b(x) {if(x){c();};}; " "function c() {}; " "a(); b(); c()"; v8::Local<v8::Function> a = CompileFunction(&env, src, "a"); SetBreakPoint(a, 0); // Step through invocation of a. step_action = StepIn; break_point_hit_count = 0; expected_step_sequence = "abbaca"; a->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that step in does not step into native functions. TEST(DebugStepNatives) { v8::HandleScope scope; DebugLocalContext env; // Create a function for testing stepping. v8::Local<v8::Function> foo = CompileFunction( &env, "function foo(){debugger;Math.sin(1);}", "foo"); // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); step_action = StepIn; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); // With stepping all break locations are hit. CHECK_EQ(3, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); // Register a debug event listener which just counts. v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount); break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); // Without stepping only active break points are hit. CHECK_EQ(1, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that step in works with function.apply. TEST(DebugStepFunctionApply) { v8::HandleScope scope; DebugLocalContext env; // Create a function for testing stepping. v8::Local<v8::Function> foo = CompileFunction( &env, "function bar(x, y, z) { if (x == 1) { a = y; b = z; } }" "function foo(){ debugger; bar.apply(this, [1,2,3]); }", "foo"); // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); step_action = StepIn; break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); // With stepping all break locations are hit. CHECK_EQ(7, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); // Register a debug event listener which just counts. v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount); break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); // Without stepping only the debugger statement is hit. CHECK_EQ(1, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test that step in works with function.call. TEST(DebugStepFunctionCall) { v8::HandleScope scope; DebugLocalContext env; // Create a function for testing stepping. v8::Local<v8::Function> foo = CompileFunction( &env, "function bar(x, y, z) { if (x == 1) { a = y; b = z; } }" "function foo(a){ debugger;" " if (a) {" " bar.call(this, 1, 2, 3);" " } else {" " bar.call(this, 0);" " }" "}", "foo"); // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStep); step_action = StepIn; // Check stepping where the if condition in bar is false. break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); CHECK_EQ(6, break_point_hit_count); // Check stepping where the if condition in bar is true. break_point_hit_count = 0; const int argc = 1; v8::Handle<v8::Value> argv[argc] = { v8::True() }; foo->Call(env->Global(), argc, argv); CHECK_EQ(8, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); // Register a debug event listener which just counts. v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount); break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); // Without stepping only the debugger statement is hit. CHECK_EQ(1, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Tests that breakpoint will be hit if it's set in script. TEST(PauseInScript) { v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); // Register a debug event listener which counts. v8::Debug::SetDebugEventListener(DebugEventCounter); // Create a script that returns a function. const char* src = "(function (evt) {})"; const char* script_name = "StepInHandlerTest"; // Set breakpoint in the script. SetScriptBreakPointByNameFromJS(script_name, 0, -1); break_point_hit_count = 0; v8::ScriptOrigin origin(v8::String::New(script_name), v8::Integer::New(0)); v8::Handle<v8::Script> script = v8::Script::Compile(v8::String::New(src), &origin); v8::Local<v8::Value> r = script->Run(); CHECK(r->IsFunction()); CHECK_EQ(1, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test break on exceptions. For each exception break combination the number // of debug event exception callbacks and message callbacks are collected. The // number of debug event exception callbacks are used to check that the // debugger is called correctly and the number of message callbacks is used to // check that uncaught exceptions are still returned even if there is a break // for them. TEST(BreakOnException) { v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::internal::Isolate::Current()->TraceException(false); // Create functions for testing break on exception. CompileFunction(&env, "function throws(){throw 1;}", "throws"); v8::Local<v8::Function> caught = CompileFunction(&env, "function caught(){try {throws();} catch(e) {};}", "caught"); v8::Local<v8::Function> notCaught = CompileFunction(&env, "function notCaught(){throws();}", "notCaught"); v8::V8::AddMessageListener(MessageCallbackCount); v8::Debug::SetDebugEventListener(DebugEventCounter); // Initial state should be no break on exceptions. DebugEventCounterClear(); MessageCallbackCountClear(); caught->Call(env->Global(), 0, NULL); CHECK_EQ(0, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(0, message_callback_count); notCaught->Call(env->Global(), 0, NULL); CHECK_EQ(0, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(1, message_callback_count); // No break on exception DebugEventCounterClear(); MessageCallbackCountClear(); ChangeBreakOnException(false, false); caught->Call(env->Global(), 0, NULL); CHECK_EQ(0, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(0, message_callback_count); notCaught->Call(env->Global(), 0, NULL); CHECK_EQ(0, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(1, message_callback_count); // Break on uncaught exception DebugEventCounterClear(); MessageCallbackCountClear(); ChangeBreakOnException(false, true); caught->Call(env->Global(), 0, NULL); CHECK_EQ(0, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(0, message_callback_count); notCaught->Call(env->Global(), 0, NULL); CHECK_EQ(1, exception_hit_count); CHECK_EQ(1, uncaught_exception_hit_count); CHECK_EQ(1, message_callback_count); // Break on exception and uncaught exception DebugEventCounterClear(); MessageCallbackCountClear(); ChangeBreakOnException(true, true); caught->Call(env->Global(), 0, NULL); CHECK_EQ(1, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(0, message_callback_count); notCaught->Call(env->Global(), 0, NULL); CHECK_EQ(2, exception_hit_count); CHECK_EQ(1, uncaught_exception_hit_count); CHECK_EQ(1, message_callback_count); // Break on exception DebugEventCounterClear(); MessageCallbackCountClear(); ChangeBreakOnException(true, false); caught->Call(env->Global(), 0, NULL); CHECK_EQ(1, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(0, message_callback_count); notCaught->Call(env->Global(), 0, NULL); CHECK_EQ(2, exception_hit_count); CHECK_EQ(1, uncaught_exception_hit_count); CHECK_EQ(1, message_callback_count); // No break on exception using JavaScript DebugEventCounterClear(); MessageCallbackCountClear(); ChangeBreakOnExceptionFromJS(false, false); caught->Call(env->Global(), 0, NULL); CHECK_EQ(0, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(0, message_callback_count); notCaught->Call(env->Global(), 0, NULL); CHECK_EQ(0, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(1, message_callback_count); // Break on uncaught exception using JavaScript DebugEventCounterClear(); MessageCallbackCountClear(); ChangeBreakOnExceptionFromJS(false, true); caught->Call(env->Global(), 0, NULL); CHECK_EQ(0, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(0, message_callback_count); notCaught->Call(env->Global(), 0, NULL); CHECK_EQ(1, exception_hit_count); CHECK_EQ(1, uncaught_exception_hit_count); CHECK_EQ(1, message_callback_count); // Break on exception and uncaught exception using JavaScript DebugEventCounterClear(); MessageCallbackCountClear(); ChangeBreakOnExceptionFromJS(true, true); caught->Call(env->Global(), 0, NULL); CHECK_EQ(1, exception_hit_count); CHECK_EQ(0, message_callback_count); CHECK_EQ(0, uncaught_exception_hit_count); notCaught->Call(env->Global(), 0, NULL); CHECK_EQ(2, exception_hit_count); CHECK_EQ(1, uncaught_exception_hit_count); CHECK_EQ(1, message_callback_count); // Break on exception using JavaScript DebugEventCounterClear(); MessageCallbackCountClear(); ChangeBreakOnExceptionFromJS(true, false); caught->Call(env->Global(), 0, NULL); CHECK_EQ(1, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(0, message_callback_count); notCaught->Call(env->Global(), 0, NULL); CHECK_EQ(2, exception_hit_count); CHECK_EQ(1, uncaught_exception_hit_count); CHECK_EQ(1, message_callback_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); v8::V8::RemoveMessageListeners(MessageCallbackCount); } // Test break on exception from compiler errors. When compiling using // v8::Script::Compile there is no JavaScript stack whereas when compiling using // eval there are JavaScript frames. TEST(BreakOnCompileException) { v8::HandleScope scope; DebugLocalContext env; // For this test, we want to break on uncaught exceptions: ChangeBreakOnException(false, true); v8::internal::Isolate::Current()->TraceException(false); // Create a function for checking the function when hitting a break point. frame_count = CompileFunction(&env, frame_count_source, "frame_count"); v8::V8::AddMessageListener(MessageCallbackCount); v8::Debug::SetDebugEventListener(DebugEventCounter); DebugEventCounterClear(); MessageCallbackCountClear(); // Check initial state. CHECK_EQ(0, exception_hit_count); CHECK_EQ(0, uncaught_exception_hit_count); CHECK_EQ(0, message_callback_count); CHECK_EQ(-1, last_js_stack_height); // Throws SyntaxError: Unexpected end of input v8::Script::Compile(v8::String::New("+++")); CHECK_EQ(1, exception_hit_count); CHECK_EQ(1, uncaught_exception_hit_count); CHECK_EQ(1, message_callback_count); CHECK_EQ(0, last_js_stack_height); // No JavaScript stack. // Throws SyntaxError: Unexpected identifier v8::Script::Compile(v8::String::New("x x")); CHECK_EQ(2, exception_hit_count); CHECK_EQ(2, uncaught_exception_hit_count); CHECK_EQ(2, message_callback_count); CHECK_EQ(0, last_js_stack_height); // No JavaScript stack. // Throws SyntaxError: Unexpected end of input v8::Script::Compile(v8::String::New("eval('+++')"))->Run(); CHECK_EQ(3, exception_hit_count); CHECK_EQ(3, uncaught_exception_hit_count); CHECK_EQ(3, message_callback_count); CHECK_EQ(1, last_js_stack_height); // Throws SyntaxError: Unexpected identifier v8::Script::Compile(v8::String::New("eval('x x')"))->Run(); CHECK_EQ(4, exception_hit_count); CHECK_EQ(4, uncaught_exception_hit_count); CHECK_EQ(4, message_callback_count); CHECK_EQ(1, last_js_stack_height); } TEST(StepWithException) { v8::HandleScope scope; DebugLocalContext env; // For this test, we want to break on uncaught exceptions: ChangeBreakOnException(false, true); // Create a function for checking the function when hitting a break point. frame_function_name = CompileFunction(&env, frame_function_name_source, "frame_function_name"); // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventStepSequence); // Create functions for testing stepping. const char* src = "function a() { n(); }; " "function b() { c(); }; " "function c() { n(); }; " "function d() { x = 1; try { e(); } catch(x) { x = 2; } }; " "function e() { n(); }; " "function f() { x = 1; try { g(); } catch(x) { x = 2; } }; " "function g() { h(); }; " "function h() { x = 1; throw 1; }; "; // Step through invocation of a. v8::Local<v8::Function> a = CompileFunction(&env, src, "a"); SetBreakPoint(a, 0); step_action = StepIn; break_point_hit_count = 0; expected_step_sequence = "aa"; a->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Step through invocation of b + c. v8::Local<v8::Function> b = CompileFunction(&env, src, "b"); SetBreakPoint(b, 0); step_action = StepIn; break_point_hit_count = 0; expected_step_sequence = "bcc"; b->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Step through invocation of d + e. v8::Local<v8::Function> d = CompileFunction(&env, src, "d"); SetBreakPoint(d, 0); ChangeBreakOnException(false, true); step_action = StepIn; break_point_hit_count = 0; expected_step_sequence = "ddedd"; d->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Step through invocation of d + e now with break on caught exceptions. ChangeBreakOnException(true, true); step_action = StepIn; break_point_hit_count = 0; expected_step_sequence = "ddeedd"; d->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Step through invocation of f + g + h. v8::Local<v8::Function> f = CompileFunction(&env, src, "f"); SetBreakPoint(f, 0); ChangeBreakOnException(false, true); step_action = StepIn; break_point_hit_count = 0; expected_step_sequence = "ffghhff"; f->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Step through invocation of f + g + h now with break on caught exceptions. ChangeBreakOnException(true, true); step_action = StepIn; break_point_hit_count = 0; expected_step_sequence = "ffghhhff"; f->Call(env->Global(), 0, NULL); CHECK_EQ(StrLength(expected_step_sequence), break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } TEST(DebugBreak) { v8::HandleScope scope; DebugLocalContext env; // This test should be run with option --verify-heap. As --verify-heap is // only available in debug mode only check for it in that case. #ifdef DEBUG CHECK(v8::internal::FLAG_verify_heap); #endif // Register a debug event listener which sets the break flag and counts. v8::Debug::SetDebugEventListener(DebugEventBreak); // Create a function for testing stepping. const char* src = "function f0() {}" "function f1(x1) {}" "function f2(x1,x2) {}" "function f3(x1,x2,x3) {}"; v8::Local<v8::Function> f0 = CompileFunction(&env, src, "f0"); v8::Local<v8::Function> f1 = CompileFunction(&env, src, "f1"); v8::Local<v8::Function> f2 = CompileFunction(&env, src, "f2"); v8::Local<v8::Function> f3 = CompileFunction(&env, src, "f3"); // Call the function to make sure it is compiled. v8::Handle<v8::Value> argv[] = { v8::Number::New(1), v8::Number::New(1), v8::Number::New(1), v8::Number::New(1) }; // Call all functions to make sure that they are compiled. f0->Call(env->Global(), 0, NULL); f1->Call(env->Global(), 0, NULL); f2->Call(env->Global(), 0, NULL); f3->Call(env->Global(), 0, NULL); // Set the debug break flag. v8::Debug::DebugBreak(); // Call all functions with different argument count. break_point_hit_count = 0; for (unsigned int i = 0; i < ARRAY_SIZE(argv); i++) { f0->Call(env->Global(), i, argv); f1->Call(env->Global(), i, argv); f2->Call(env->Global(), i, argv); f3->Call(env->Global(), i, argv); } // One break for each function called. CHECK_EQ(4 * ARRAY_SIZE(argv), break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Test to ensure that JavaScript code keeps running while the debug break // through the stack limit flag is set but breaks are disabled. TEST(DisableBreak) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which sets the break flag and counts. v8::Debug::SetDebugEventListener(DebugEventCounter); // Create a function for testing stepping. const char* src = "function f() {g()};function g(){i=0; while(i<10){i++}}"; v8::Local<v8::Function> f = CompileFunction(&env, src, "f"); // Set the debug break flag. v8::Debug::DebugBreak(); // Call all functions with different argument count. break_point_hit_count = 0; f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); { v8::Debug::DebugBreak(); v8::internal::DisableBreak disable_break(true); f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); } f->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } static const char* kSimpleExtensionSource = "(function Foo() {" " return 4;" "})() "; // http://crbug.com/28933 // Test that debug break is disabled when bootstrapper is active. TEST(NoBreakWhenBootstrapping) { v8::HandleScope scope; // Register a debug event listener which sets the break flag and counts. v8::Debug::SetDebugEventListener(DebugEventCounter); // Set the debug break flag. v8::Debug::DebugBreak(); break_point_hit_count = 0; { // Create a context with an extension to make sure that some JavaScript // code is executed during bootstrapping. v8::RegisterExtension(new v8::Extension("simpletest", kSimpleExtensionSource)); const char* extension_names[] = { "simpletest" }; v8::ExtensionConfiguration extensions(1, extension_names); v8::Persistent<v8::Context> context = v8::Context::New(&extensions); context.Dispose(); } // Check that no DebugBreak events occured during the context creation. CHECK_EQ(0, break_point_hit_count); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } static v8::Handle<v8::Array> NamedEnum(const v8::AccessorInfo&) { v8::Handle<v8::Array> result = v8::Array::New(3); result->Set(v8::Integer::New(0), v8::String::New("a")); result->Set(v8::Integer::New(1), v8::String::New("b")); result->Set(v8::Integer::New(2), v8::String::New("c")); return result; } static v8::Handle<v8::Array> IndexedEnum(const v8::AccessorInfo&) { v8::Handle<v8::Array> result = v8::Array::New(2); result->Set(v8::Integer::New(0), v8::Number::New(1)); result->Set(v8::Integer::New(1), v8::Number::New(10)); return result; } static v8::Handle<v8::Value> NamedGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info) { v8::String::AsciiValue n(name); if (strcmp(*n, "a") == 0) { return v8::String::New("AA"); } else if (strcmp(*n, "b") == 0) { return v8::String::New("BB"); } else if (strcmp(*n, "c") == 0) { return v8::String::New("CC"); } else { return v8::Undefined(); } return name; } static v8::Handle<v8::Value> IndexedGetter(uint32_t index, const v8::AccessorInfo& info) { return v8::Number::New(index + 1); } TEST(InterceptorPropertyMirror) { // Create a V8 environment with debug access. v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); // Create object with named interceptor. v8::Handle<v8::ObjectTemplate> named = v8::ObjectTemplate::New(); named->SetNamedPropertyHandler(NamedGetter, NULL, NULL, NULL, NamedEnum); env->Global()->Set(v8::String::New("intercepted_named"), named->NewInstance()); // Create object with indexed interceptor. v8::Handle<v8::ObjectTemplate> indexed = v8::ObjectTemplate::New(); indexed->SetIndexedPropertyHandler(IndexedGetter, NULL, NULL, NULL, IndexedEnum); env->Global()->Set(v8::String::New("intercepted_indexed"), indexed->NewInstance()); // Create object with both named and indexed interceptor. v8::Handle<v8::ObjectTemplate> both = v8::ObjectTemplate::New(); both->SetNamedPropertyHandler(NamedGetter, NULL, NULL, NULL, NamedEnum); both->SetIndexedPropertyHandler(IndexedGetter, NULL, NULL, NULL, IndexedEnum); env->Global()->Set(v8::String::New("intercepted_both"), both->NewInstance()); // Get mirrors for the three objects with interceptor. CompileRun( "var named_mirror = debug.MakeMirror(intercepted_named);" "var indexed_mirror = debug.MakeMirror(intercepted_indexed);" "var both_mirror = debug.MakeMirror(intercepted_both)"); CHECK(CompileRun( "named_mirror instanceof debug.ObjectMirror")->BooleanValue()); CHECK(CompileRun( "indexed_mirror instanceof debug.ObjectMirror")->BooleanValue()); CHECK(CompileRun( "both_mirror instanceof debug.ObjectMirror")->BooleanValue()); // Get the property names from the interceptors CompileRun( "named_names = named_mirror.propertyNames();" "indexed_names = indexed_mirror.propertyNames();" "both_names = both_mirror.propertyNames()"); CHECK_EQ(3, CompileRun("named_names.length")->Int32Value()); CHECK_EQ(2, CompileRun("indexed_names.length")->Int32Value()); CHECK_EQ(5, CompileRun("both_names.length")->Int32Value()); // Check the expected number of properties. const char* source; source = "named_mirror.properties().length"; CHECK_EQ(3, CompileRun(source)->Int32Value()); source = "indexed_mirror.properties().length"; CHECK_EQ(2, CompileRun(source)->Int32Value()); source = "both_mirror.properties().length"; CHECK_EQ(5, CompileRun(source)->Int32Value()); // 1 is PropertyKind.Named; source = "both_mirror.properties(1).length"; CHECK_EQ(3, CompileRun(source)->Int32Value()); // 2 is PropertyKind.Indexed; source = "both_mirror.properties(2).length"; CHECK_EQ(2, CompileRun(source)->Int32Value()); // 3 is PropertyKind.Named | PropertyKind.Indexed; source = "both_mirror.properties(3).length"; CHECK_EQ(5, CompileRun(source)->Int32Value()); // Get the interceptor properties for the object with only named interceptor. CompileRun("var named_values = named_mirror.properties()"); // Check that the properties are interceptor properties. for (int i = 0; i < 3; i++) { EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer; OS::SNPrintF(buffer, "named_values[%d] instanceof debug.PropertyMirror", i); CHECK(CompileRun(buffer.start())->BooleanValue()); // 5 is PropertyType.Interceptor OS::SNPrintF(buffer, "named_values[%d].propertyType()", i); CHECK_EQ(5, CompileRun(buffer.start())->Int32Value()); OS::SNPrintF(buffer, "named_values[%d].isNative()", i); CHECK(CompileRun(buffer.start())->BooleanValue()); } // Get the interceptor properties for the object with only indexed // interceptor. CompileRun("var indexed_values = indexed_mirror.properties()"); // Check that the properties are interceptor properties. for (int i = 0; i < 2; i++) { EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer; OS::SNPrintF(buffer, "indexed_values[%d] instanceof debug.PropertyMirror", i); CHECK(CompileRun(buffer.start())->BooleanValue()); } // Get the interceptor properties for the object with both types of // interceptors. CompileRun("var both_values = both_mirror.properties()"); // Check that the properties are interceptor properties. for (int i = 0; i < 5; i++) { EmbeddedVector<char, SMALL_STRING_BUFFER_SIZE> buffer; OS::SNPrintF(buffer, "both_values[%d] instanceof debug.PropertyMirror", i); CHECK(CompileRun(buffer.start())->BooleanValue()); } // Check the property names. source = "both_values[0].name() == 'a'"; CHECK(CompileRun(source)->BooleanValue()); source = "both_values[1].name() == 'b'"; CHECK(CompileRun(source)->BooleanValue()); source = "both_values[2].name() == 'c'"; CHECK(CompileRun(source)->BooleanValue()); source = "both_values[3].name() == 1"; CHECK(CompileRun(source)->BooleanValue()); source = "both_values[4].name() == 10"; CHECK(CompileRun(source)->BooleanValue()); } TEST(HiddenPrototypePropertyMirror) { // Create a V8 environment with debug access. v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Handle<v8::FunctionTemplate> t0 = v8::FunctionTemplate::New(); t0->InstanceTemplate()->Set(v8::String::New("x"), v8::Number::New(0)); v8::Handle<v8::FunctionTemplate> t1 = v8::FunctionTemplate::New(); t1->SetHiddenPrototype(true); t1->InstanceTemplate()->Set(v8::String::New("y"), v8::Number::New(1)); v8::Handle<v8::FunctionTemplate> t2 = v8::FunctionTemplate::New(); t2->SetHiddenPrototype(true); t2->InstanceTemplate()->Set(v8::String::New("z"), v8::Number::New(2)); v8::Handle<v8::FunctionTemplate> t3 = v8::FunctionTemplate::New(); t3->InstanceTemplate()->Set(v8::String::New("u"), v8::Number::New(3)); // Create object and set them on the global object. v8::Handle<v8::Object> o0 = t0->GetFunction()->NewInstance(); env->Global()->Set(v8::String::New("o0"), o0); v8::Handle<v8::Object> o1 = t1->GetFunction()->NewInstance(); env->Global()->Set(v8::String::New("o1"), o1); v8::Handle<v8::Object> o2 = t2->GetFunction()->NewInstance(); env->Global()->Set(v8::String::New("o2"), o2); v8::Handle<v8::Object> o3 = t3->GetFunction()->NewInstance(); env->Global()->Set(v8::String::New("o3"), o3); // Get mirrors for the four objects. CompileRun( "var o0_mirror = debug.MakeMirror(o0);" "var o1_mirror = debug.MakeMirror(o1);" "var o2_mirror = debug.MakeMirror(o2);" "var o3_mirror = debug.MakeMirror(o3)"); CHECK(CompileRun("o0_mirror instanceof debug.ObjectMirror")->BooleanValue()); CHECK(CompileRun("o1_mirror instanceof debug.ObjectMirror")->BooleanValue()); CHECK(CompileRun("o2_mirror instanceof debug.ObjectMirror")->BooleanValue()); CHECK(CompileRun("o3_mirror instanceof debug.ObjectMirror")->BooleanValue()); // Check that each object has one property. CHECK_EQ(1, CompileRun( "o0_mirror.propertyNames().length")->Int32Value()); CHECK_EQ(1, CompileRun( "o1_mirror.propertyNames().length")->Int32Value()); CHECK_EQ(1, CompileRun( "o2_mirror.propertyNames().length")->Int32Value()); CHECK_EQ(1, CompileRun( "o3_mirror.propertyNames().length")->Int32Value()); // Set o1 as prototype for o0. o1 has the hidden prototype flag so all // properties on o1 should be seen on o0. o0->Set(v8::String::New("__proto__"), o1); CHECK_EQ(2, CompileRun( "o0_mirror.propertyNames().length")->Int32Value()); CHECK_EQ(0, CompileRun( "o0_mirror.property('x').value().value()")->Int32Value()); CHECK_EQ(1, CompileRun( "o0_mirror.property('y').value().value()")->Int32Value()); // Set o2 as prototype for o0 (it will end up after o1 as o1 has the hidden // prototype flag. o2 also has the hidden prototype flag so all properties // on o2 should be seen on o0 as well as properties on o1. o0->Set(v8::String::New("__proto__"), o2); CHECK_EQ(3, CompileRun( "o0_mirror.propertyNames().length")->Int32Value()); CHECK_EQ(0, CompileRun( "o0_mirror.property('x').value().value()")->Int32Value()); CHECK_EQ(1, CompileRun( "o0_mirror.property('y').value().value()")->Int32Value()); CHECK_EQ(2, CompileRun( "o0_mirror.property('z').value().value()")->Int32Value()); // Set o3 as prototype for o0 (it will end up after o1 and o2 as both o1 and // o2 has the hidden prototype flag. o3 does not have the hidden prototype // flag so properties on o3 should not be seen on o0 whereas the properties // from o1 and o2 should still be seen on o0. // Final prototype chain: o0 -> o1 -> o2 -> o3 // Hidden prototypes: ^^ ^^ o0->Set(v8::String::New("__proto__"), o3); CHECK_EQ(3, CompileRun( "o0_mirror.propertyNames().length")->Int32Value()); CHECK_EQ(1, CompileRun( "o3_mirror.propertyNames().length")->Int32Value()); CHECK_EQ(0, CompileRun( "o0_mirror.property('x').value().value()")->Int32Value()); CHECK_EQ(1, CompileRun( "o0_mirror.property('y').value().value()")->Int32Value()); CHECK_EQ(2, CompileRun( "o0_mirror.property('z').value().value()")->Int32Value()); CHECK(CompileRun("o0_mirror.property('u').isUndefined()")->BooleanValue()); // The prototype (__proto__) for o0 should be o3 as o1 and o2 are hidden. CHECK(CompileRun("o0_mirror.protoObject() == o3_mirror")->BooleanValue()); } static v8::Handle<v8::Value> ProtperyXNativeGetter( v8::Local<v8::String> property, const v8::AccessorInfo& info) { return v8::Integer::New(10); } TEST(NativeGetterPropertyMirror) { // Create a V8 environment with debug access. v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Handle<v8::String> name = v8::String::New("x"); // Create object with named accessor. v8::Handle<v8::ObjectTemplate> named = v8::ObjectTemplate::New(); named->SetAccessor(name, &ProtperyXNativeGetter, NULL, v8::Handle<v8::Value>(), v8::DEFAULT, v8::None); // Create object with named property getter. env->Global()->Set(v8::String::New("instance"), named->NewInstance()); CHECK_EQ(10, CompileRun("instance.x")->Int32Value()); // Get mirror for the object with property getter. CompileRun("var instance_mirror = debug.MakeMirror(instance);"); CHECK(CompileRun( "instance_mirror instanceof debug.ObjectMirror")->BooleanValue()); CompileRun("var named_names = instance_mirror.propertyNames();"); CHECK_EQ(1, CompileRun("named_names.length")->Int32Value()); CHECK(CompileRun("named_names[0] == 'x'")->BooleanValue()); CHECK(CompileRun( "instance_mirror.property('x').value().isNumber()")->BooleanValue()); CHECK(CompileRun( "instance_mirror.property('x').value().value() == 10")->BooleanValue()); } static v8::Handle<v8::Value> ProtperyXNativeGetterThrowingError( v8::Local<v8::String> property, const v8::AccessorInfo& info) { return CompileRun("throw new Error('Error message');"); } TEST(NativeGetterThrowingErrorPropertyMirror) { // Create a V8 environment with debug access. v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); v8::Handle<v8::String> name = v8::String::New("x"); // Create object with named accessor. v8::Handle<v8::ObjectTemplate> named = v8::ObjectTemplate::New(); named->SetAccessor(name, &ProtperyXNativeGetterThrowingError, NULL, v8::Handle<v8::Value>(), v8::DEFAULT, v8::None); // Create object with named property getter. env->Global()->Set(v8::String::New("instance"), named->NewInstance()); // Get mirror for the object with property getter. CompileRun("var instance_mirror = debug.MakeMirror(instance);"); CHECK(CompileRun( "instance_mirror instanceof debug.ObjectMirror")->BooleanValue()); CompileRun("named_names = instance_mirror.propertyNames();"); CHECK_EQ(1, CompileRun("named_names.length")->Int32Value()); CHECK(CompileRun("named_names[0] == 'x'")->BooleanValue()); CHECK(CompileRun( "instance_mirror.property('x').value().isError()")->BooleanValue()); // Check that the message is that passed to the Error constructor. CHECK(CompileRun( "instance_mirror.property('x').value().message() == 'Error message'")-> BooleanValue()); } // Test that hidden properties object is not returned as an unnamed property // among regular properties. // See http://crbug.com/26491 TEST(NoHiddenProperties) { // Create a V8 environment with debug access. v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); // Create an object in the global scope. const char* source = "var obj = {a: 1};"; v8::Script::Compile(v8::String::New(source))->Run(); v8::Local<v8::Object> obj = v8::Local<v8::Object>::Cast( env->Global()->Get(v8::String::New("obj"))); // Set a hidden property on the object. obj->SetHiddenValue(v8::String::New("v8::test-debug::a"), v8::Int32::New(11)); // Get mirror for the object with property getter. CompileRun("var obj_mirror = debug.MakeMirror(obj);"); CHECK(CompileRun( "obj_mirror instanceof debug.ObjectMirror")->BooleanValue()); CompileRun("var named_names = obj_mirror.propertyNames();"); // There should be exactly one property. But there is also an unnamed // property whose value is hidden properties dictionary. The latter // property should not be in the list of reguar properties. CHECK_EQ(1, CompileRun("named_names.length")->Int32Value()); CHECK(CompileRun("named_names[0] == 'a'")->BooleanValue()); CHECK(CompileRun( "obj_mirror.property('a').value().value() == 1")->BooleanValue()); // Object created by t0 will become hidden prototype of object 'obj'. v8::Handle<v8::FunctionTemplate> t0 = v8::FunctionTemplate::New(); t0->InstanceTemplate()->Set(v8::String::New("b"), v8::Number::New(2)); t0->SetHiddenPrototype(true); v8::Handle<v8::FunctionTemplate> t1 = v8::FunctionTemplate::New(); t1->InstanceTemplate()->Set(v8::String::New("c"), v8::Number::New(3)); // Create proto objects, add hidden properties to them and set them on // the global object. v8::Handle<v8::Object> protoObj = t0->GetFunction()->NewInstance(); protoObj->SetHiddenValue(v8::String::New("v8::test-debug::b"), v8::Int32::New(12)); env->Global()->Set(v8::String::New("protoObj"), protoObj); v8::Handle<v8::Object> grandProtoObj = t1->GetFunction()->NewInstance(); grandProtoObj->SetHiddenValue(v8::String::New("v8::test-debug::c"), v8::Int32::New(13)); env->Global()->Set(v8::String::New("grandProtoObj"), grandProtoObj); // Setting prototypes: obj->protoObj->grandProtoObj protoObj->Set(v8::String::New("__proto__"), grandProtoObj); obj->Set(v8::String::New("__proto__"), protoObj); // Get mirror for the object with property getter. CompileRun("var obj_mirror = debug.MakeMirror(obj);"); CHECK(CompileRun( "obj_mirror instanceof debug.ObjectMirror")->BooleanValue()); CompileRun("var named_names = obj_mirror.propertyNames();"); // There should be exactly two properties - one from the object itself and // another from its hidden prototype. CHECK_EQ(2, CompileRun("named_names.length")->Int32Value()); CHECK(CompileRun("named_names.sort(); named_names[0] == 'a' &&" "named_names[1] == 'b'")->BooleanValue()); CHECK(CompileRun( "obj_mirror.property('a').value().value() == 1")->BooleanValue()); CHECK(CompileRun( "obj_mirror.property('b').value().value() == 2")->BooleanValue()); } // Multithreaded tests of JSON debugger protocol // Support classes // Provides synchronization between k threads, where k is an input to the // constructor. The Wait() call blocks a thread until it is called for the // k'th time, then all calls return. Each ThreadBarrier object can only // be used once. class ThreadBarrier { public: explicit ThreadBarrier(int num_threads); ~ThreadBarrier(); void Wait(); private: int num_threads_; int num_blocked_; v8::internal::Mutex* lock_; v8::internal::Semaphore* sem_; bool invalid_; }; ThreadBarrier::ThreadBarrier(int num_threads) : num_threads_(num_threads), num_blocked_(0) { lock_ = OS::CreateMutex(); sem_ = OS::CreateSemaphore(0); invalid_ = false; // A barrier may only be used once. Then it is invalid. } // Do not call, due to race condition with Wait(). // Could be resolved with Pthread condition variables. ThreadBarrier::~ThreadBarrier() { lock_->Lock(); delete lock_; delete sem_; } void ThreadBarrier::Wait() { lock_->Lock(); CHECK(!invalid_); if (num_blocked_ == num_threads_ - 1) { // Signal and unblock all waiting threads. for (int i = 0; i < num_threads_ - 1; ++i) { sem_->Signal(); } invalid_ = true; printf("BARRIER\n\n"); fflush(stdout); lock_->Unlock(); } else { // Wait for the semaphore. ++num_blocked_; lock_->Unlock(); // Potential race condition with destructor because sem_->Wait(); // these two lines are not atomic. } } // A set containing enough barriers and semaphores for any of the tests. class Barriers { public: Barriers(); void Initialize(); ThreadBarrier barrier_1; ThreadBarrier barrier_2; ThreadBarrier barrier_3; ThreadBarrier barrier_4; ThreadBarrier barrier_5; v8::internal::Semaphore* semaphore_1; v8::internal::Semaphore* semaphore_2; }; Barriers::Barriers() : barrier_1(2), barrier_2(2), barrier_3(2), barrier_4(2), barrier_5(2) {} void Barriers::Initialize() { semaphore_1 = OS::CreateSemaphore(0); semaphore_2 = OS::CreateSemaphore(0); } // We match parts of the message to decide if it is a break message. bool IsBreakEventMessage(char *message) { const char* type_event = "\"type\":\"event\""; const char* event_break = "\"event\":\"break\""; // Does the message contain both type:event and event:break? return strstr(message, type_event) != NULL && strstr(message, event_break) != NULL; } // We match parts of the message to decide if it is a exception message. bool IsExceptionEventMessage(char *message) { const char* type_event = "\"type\":\"event\""; const char* event_exception = "\"event\":\"exception\""; // Does the message contain both type:event and event:exception? return strstr(message, type_event) != NULL && strstr(message, event_exception) != NULL; } // We match the message wether it is an evaluate response message. bool IsEvaluateResponseMessage(char* message) { const char* type_response = "\"type\":\"response\""; const char* command_evaluate = "\"command\":\"evaluate\""; // Does the message contain both type:response and command:evaluate? return strstr(message, type_response) != NULL && strstr(message, command_evaluate) != NULL; } static int StringToInt(const char* s) { return atoi(s); // NOLINT } // We match parts of the message to get evaluate result int value. int GetEvaluateIntResult(char *message) { const char* value = "\"value\":"; char* pos = strstr(message, value); if (pos == NULL) { return -1; } int res = -1; res = StringToInt(pos + strlen(value)); return res; } // We match parts of the message to get hit breakpoint id. int GetBreakpointIdFromBreakEventMessage(char *message) { const char* breakpoints = "\"breakpoints\":["; char* pos = strstr(message, breakpoints); if (pos == NULL) { return -1; } int res = -1; res = StringToInt(pos + strlen(breakpoints)); return res; } // We match parts of the message to get total frames number. int GetTotalFramesInt(char *message) { const char* prefix = "\"totalFrames\":"; char* pos = strstr(message, prefix); if (pos == NULL) { return -1; } pos += strlen(prefix); int res = StringToInt(pos); return res; } // We match parts of the message to get source line. int GetSourceLineFromBreakEventMessage(char *message) { const char* source_line = "\"sourceLine\":"; char* pos = strstr(message, source_line); if (pos == NULL) { return -1; } int res = -1; res = StringToInt(pos + strlen(source_line)); return res; } /* Test MessageQueues */ /* Tests the message queues that hold debugger commands and * response messages to the debugger. Fills queues and makes * them grow. */ Barriers message_queue_barriers; // This is the debugger thread, that executes no v8 calls except // placing JSON debugger commands in the queue. class MessageQueueDebuggerThread : public v8::internal::Thread { public: MessageQueueDebuggerThread() : Thread("MessageQueueDebuggerThread") { } void Run(); }; static void MessageHandler(const uint16_t* message, int length, v8::Debug::ClientData* client_data) { static char print_buffer[1000]; Utf16ToAscii(message, length, print_buffer); if (IsBreakEventMessage(print_buffer)) { // Lets test script wait until break occurs to send commands. // Signals when a break is reported. message_queue_barriers.semaphore_2->Signal(); } // Allow message handler to block on a semaphore, to test queueing of // messages while blocked. message_queue_barriers.semaphore_1->Wait(); } void MessageQueueDebuggerThread::Run() { const int kBufferSize = 1000; uint16_t buffer_1[kBufferSize]; uint16_t buffer_2[kBufferSize]; const char* command_1 = "{\"seq\":117," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"1+2\"}}"; const char* command_2 = "{\"seq\":118," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"1+a\"}}"; const char* command_3 = "{\"seq\":119," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"c.d * b\"}}"; const char* command_continue = "{\"seq\":106," "\"type\":\"request\"," "\"command\":\"continue\"}"; const char* command_single_step = "{\"seq\":107," "\"type\":\"request\"," "\"command\":\"continue\"," "\"arguments\":{\"stepaction\":\"next\"}}"; /* Interleaved sequence of actions by the two threads:*/ // Main thread compiles and runs source_1 message_queue_barriers.semaphore_1->Signal(); message_queue_barriers.barrier_1.Wait(); // Post 6 commands, filling the command queue and making it expand. // These calls return immediately, but the commands stay on the queue // until the execution of source_2. // Note: AsciiToUtf16 executes before SendCommand, so command is copied // to buffer before buffer is sent to SendCommand. v8::Debug::SendCommand(buffer_1, AsciiToUtf16(command_1, buffer_1)); v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_2, buffer_2)); v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_3, buffer_2)); v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_3, buffer_2)); v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_3, buffer_2)); message_queue_barriers.barrier_2.Wait(); // Main thread compiles and runs source_2. // Queued commands are executed at the start of compilation of source_2( // beforeCompile event). // Free the message handler to process all the messages from the queue. 7 // messages are expected: 2 afterCompile events and 5 responses. // All the commands added so far will fail to execute as long as call stack // is empty on beforeCompile event. for (int i = 0; i < 6 ; ++i) { message_queue_barriers.semaphore_1->Signal(); } message_queue_barriers.barrier_3.Wait(); // Main thread compiles and runs source_3. // Don't stop in the afterCompile handler. message_queue_barriers.semaphore_1->Signal(); // source_3 includes a debugger statement, which causes a break event. // Wait on break event from hitting "debugger" statement message_queue_barriers.semaphore_2->Wait(); // These should execute after the "debugger" statement in source_2 v8::Debug::SendCommand(buffer_1, AsciiToUtf16(command_1, buffer_1)); v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_2, buffer_2)); v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_3, buffer_2)); v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_single_step, buffer_2)); // Run after 2 break events, 4 responses. for (int i = 0; i < 6 ; ++i) { message_queue_barriers.semaphore_1->Signal(); } // Wait on break event after a single step executes. message_queue_barriers.semaphore_2->Wait(); v8::Debug::SendCommand(buffer_1, AsciiToUtf16(command_2, buffer_1)); v8::Debug::SendCommand(buffer_2, AsciiToUtf16(command_continue, buffer_2)); // Run after 2 responses. for (int i = 0; i < 2 ; ++i) { message_queue_barriers.semaphore_1->Signal(); } // Main thread continues running source_3 to end, waits for this thread. } // This thread runs the v8 engine. TEST(MessageQueues) { MessageQueueDebuggerThread message_queue_debugger_thread; // Create a V8 environment v8::HandleScope scope; DebugLocalContext env; message_queue_barriers.Initialize(); v8::Debug::SetMessageHandler(MessageHandler); message_queue_debugger_thread.Start(); const char* source_1 = "a = 3; b = 4; c = new Object(); c.d = 5;"; const char* source_2 = "e = 17;"; const char* source_3 = "a = 4; debugger; a = 5; a = 6; a = 7;"; // See MessageQueueDebuggerThread::Run for interleaved sequence of // API calls and events in the two threads. CompileRun(source_1); message_queue_barriers.barrier_1.Wait(); message_queue_barriers.barrier_2.Wait(); CompileRun(source_2); message_queue_barriers.barrier_3.Wait(); CompileRun(source_3); message_queue_debugger_thread.Join(); fflush(stdout); } class TestClientData : public v8::Debug::ClientData { public: TestClientData() { constructor_call_counter++; } virtual ~TestClientData() { destructor_call_counter++; } static void ResetCounters() { constructor_call_counter = 0; destructor_call_counter = 0; } static int constructor_call_counter; static int destructor_call_counter; }; int TestClientData::constructor_call_counter = 0; int TestClientData::destructor_call_counter = 0; // Tests that MessageQueue doesn't destroy client data when expands and // does destroy when it dies. TEST(MessageQueueExpandAndDestroy) { TestClientData::ResetCounters(); { // Create a scope for the queue. CommandMessageQueue queue(1); queue.Put(CommandMessage::New(Vector<uint16_t>::empty(), new TestClientData())); queue.Put(CommandMessage::New(Vector<uint16_t>::empty(), new TestClientData())); queue.Put(CommandMessage::New(Vector<uint16_t>::empty(), new TestClientData())); CHECK_EQ(0, TestClientData::destructor_call_counter); queue.Get().Dispose(); CHECK_EQ(1, TestClientData::destructor_call_counter); queue.Put(CommandMessage::New(Vector<uint16_t>::empty(), new TestClientData())); queue.Put(CommandMessage::New(Vector<uint16_t>::empty(), new TestClientData())); queue.Put(CommandMessage::New(Vector<uint16_t>::empty(), new TestClientData())); queue.Put(CommandMessage::New(Vector<uint16_t>::empty(), new TestClientData())); queue.Put(CommandMessage::New(Vector<uint16_t>::empty(), new TestClientData())); CHECK_EQ(1, TestClientData::destructor_call_counter); queue.Get().Dispose(); CHECK_EQ(2, TestClientData::destructor_call_counter); } // All the client data should be destroyed when the queue is destroyed. CHECK_EQ(TestClientData::destructor_call_counter, TestClientData::destructor_call_counter); } static int handled_client_data_instances_count = 0; static void MessageHandlerCountingClientData( const v8::Debug::Message& message) { if (message.GetClientData() != NULL) { handled_client_data_instances_count++; } } // Tests that all client data passed to the debugger are sent to the handler. TEST(SendClientDataToHandler) { // Create a V8 environment v8::HandleScope scope; DebugLocalContext env; TestClientData::ResetCounters(); handled_client_data_instances_count = 0; v8::Debug::SetMessageHandler2(MessageHandlerCountingClientData); const char* source_1 = "a = 3; b = 4; c = new Object(); c.d = 5;"; const int kBufferSize = 1000; uint16_t buffer[kBufferSize]; const char* command_1 = "{\"seq\":117," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"1+2\"}}"; const char* command_2 = "{\"seq\":118," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"1+a\"}}"; const char* command_continue = "{\"seq\":106," "\"type\":\"request\"," "\"command\":\"continue\"}"; v8::Debug::SendCommand(buffer, AsciiToUtf16(command_1, buffer), new TestClientData()); v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer), NULL); v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer), new TestClientData()); v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer), new TestClientData()); // All the messages will be processed on beforeCompile event. CompileRun(source_1); v8::Debug::SendCommand(buffer, AsciiToUtf16(command_continue, buffer)); CHECK_EQ(3, TestClientData::constructor_call_counter); CHECK_EQ(TestClientData::constructor_call_counter, handled_client_data_instances_count); CHECK_EQ(TestClientData::constructor_call_counter, TestClientData::destructor_call_counter); } /* Test ThreadedDebugging */ /* This test interrupts a running infinite loop that is * occupying the v8 thread by a break command from the * debugger thread. It then changes the value of a * global object, to make the loop terminate. */ Barriers threaded_debugging_barriers; class V8Thread : public v8::internal::Thread { public: V8Thread() : Thread("V8Thread") { } void Run(); }; class DebuggerThread : public v8::internal::Thread { public: DebuggerThread() : Thread("DebuggerThread") { } void Run(); }; static v8::Handle<v8::Value> ThreadedAtBarrier1(const v8::Arguments& args) { threaded_debugging_barriers.barrier_1.Wait(); return v8::Undefined(); } static void ThreadedMessageHandler(const v8::Debug::Message& message) { static char print_buffer[1000]; v8::String::Value json(message.GetJSON()); Utf16ToAscii(*json, json.length(), print_buffer); if (IsBreakEventMessage(print_buffer)) { // Check that we are inside the while loop. int source_line = GetSourceLineFromBreakEventMessage(print_buffer); // TODO(2047): This should really be 8 <= source_line <= 13; but we // currently have an off-by-one error when calculating the source // position corresponding to the program counter at the debug break. CHECK(7 <= source_line && source_line <= 13); threaded_debugging_barriers.barrier_2.Wait(); } } void V8Thread::Run() { const char* source = "flag = true;\n" "function bar( new_value ) {\n" " flag = new_value;\n" " return \"Return from bar(\" + new_value + \")\";\n" "}\n" "\n" "function foo() {\n" " var x = 1;\n" " while ( flag == true ) {\n" " if ( x == 1 ) {\n" " ThreadedAtBarrier1();\n" " }\n" " x = x + 1;\n" " }\n" "}\n" "\n" "foo();\n"; v8::V8::Initialize(); v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetMessageHandler2(&ThreadedMessageHandler); v8::Handle<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New(); global_template->Set(v8::String::New("ThreadedAtBarrier1"), v8::FunctionTemplate::New(ThreadedAtBarrier1)); v8::Handle<v8::Context> context = v8::Context::New(NULL, global_template); v8::Context::Scope context_scope(context); CompileRun(source); } void DebuggerThread::Run() { const int kBufSize = 1000; uint16_t buffer[kBufSize]; const char* command_1 = "{\"seq\":102," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"bar(false)\"}}"; const char* command_2 = "{\"seq\":103," "\"type\":\"request\"," "\"command\":\"continue\"}"; threaded_debugging_barriers.barrier_1.Wait(); v8::Debug::DebugBreak(); threaded_debugging_barriers.barrier_2.Wait(); v8::Debug::SendCommand(buffer, AsciiToUtf16(command_1, buffer)); v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer)); } TEST(ThreadedDebugging) { DebuggerThread debugger_thread; V8Thread v8_thread; // Create a V8 environment threaded_debugging_barriers.Initialize(); v8_thread.Start(); debugger_thread.Start(); v8_thread.Join(); debugger_thread.Join(); } /* Test RecursiveBreakpoints */ /* In this test, the debugger evaluates a function with a breakpoint, after * hitting a breakpoint in another function. We do this with both values * of the flag enabling recursive breakpoints, and verify that the second * breakpoint is hit when enabled, and missed when disabled. */ class BreakpointsV8Thread : public v8::internal::Thread { public: BreakpointsV8Thread() : Thread("BreakpointsV8Thread") { } void Run(); }; class BreakpointsDebuggerThread : public v8::internal::Thread { public: explicit BreakpointsDebuggerThread(bool global_evaluate) : Thread("BreakpointsDebuggerThread"), global_evaluate_(global_evaluate) {} void Run(); private: bool global_evaluate_; }; Barriers* breakpoints_barriers; int break_event_breakpoint_id; int evaluate_int_result; static void BreakpointsMessageHandler(const v8::Debug::Message& message) { static char print_buffer[1000]; v8::String::Value json(message.GetJSON()); Utf16ToAscii(*json, json.length(), print_buffer); if (IsBreakEventMessage(print_buffer)) { break_event_breakpoint_id = GetBreakpointIdFromBreakEventMessage(print_buffer); breakpoints_barriers->semaphore_1->Signal(); } else if (IsEvaluateResponseMessage(print_buffer)) { evaluate_int_result = GetEvaluateIntResult(print_buffer); breakpoints_barriers->semaphore_1->Signal(); } } void BreakpointsV8Thread::Run() { const char* source_1 = "var y_global = 3;\n" "function cat( new_value ) {\n" " var x = new_value;\n" " y_global = y_global + 4;\n" " x = 3 * x + 1;\n" " y_global = y_global + 5;\n" " return x;\n" "}\n" "\n" "function dog() {\n" " var x = 1;\n" " x = y_global;" " var z = 3;" " x += 100;\n" " return x;\n" "}\n" "\n"; const char* source_2 = "cat(17);\n" "cat(19);\n"; v8::V8::Initialize(); v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetMessageHandler2(&BreakpointsMessageHandler); CompileRun(source_1); breakpoints_barriers->barrier_1.Wait(); breakpoints_barriers->barrier_2.Wait(); CompileRun(source_2); } void BreakpointsDebuggerThread::Run() { const int kBufSize = 1000; uint16_t buffer[kBufSize]; const char* command_1 = "{\"seq\":101," "\"type\":\"request\"," "\"command\":\"setbreakpoint\"," "\"arguments\":{\"type\":\"function\",\"target\":\"cat\",\"line\":3}}"; const char* command_2 = "{\"seq\":102," "\"type\":\"request\"," "\"command\":\"setbreakpoint\"," "\"arguments\":{\"type\":\"function\",\"target\":\"dog\",\"line\":3}}"; const char* command_3; if (this->global_evaluate_) { command_3 = "{\"seq\":103," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"dog()\",\"disable_break\":false," "\"global\":true}}"; } else { command_3 = "{\"seq\":103," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"dog()\",\"disable_break\":false}}"; } const char* command_4; if (this->global_evaluate_) { command_4 = "{\"seq\":104," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"100 + 8\",\"disable_break\":true," "\"global\":true}}"; } else { command_4 = "{\"seq\":104," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"x + 1\",\"disable_break\":true}}"; } const char* command_5 = "{\"seq\":105," "\"type\":\"request\"," "\"command\":\"continue\"}"; const char* command_6 = "{\"seq\":106," "\"type\":\"request\"," "\"command\":\"continue\"}"; const char* command_7; if (this->global_evaluate_) { command_7 = "{\"seq\":107," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"dog()\",\"disable_break\":true," "\"global\":true}}"; } else { command_7 = "{\"seq\":107," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"dog()\",\"disable_break\":true}}"; } const char* command_8 = "{\"seq\":108," "\"type\":\"request\"," "\"command\":\"continue\"}"; // v8 thread initializes, runs source_1 breakpoints_barriers->barrier_1.Wait(); // 1:Set breakpoint in cat() (will get id 1). v8::Debug::SendCommand(buffer, AsciiToUtf16(command_1, buffer)); // 2:Set breakpoint in dog() (will get id 2). v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer)); breakpoints_barriers->barrier_2.Wait(); // V8 thread starts compiling source_2. // Automatic break happens, to run queued commands // breakpoints_barriers->semaphore_1->Wait(); // Commands 1 through 3 run, thread continues. // v8 thread runs source_2 to breakpoint in cat(). // message callback receives break event. breakpoints_barriers->semaphore_1->Wait(); // Must have hit breakpoint #1. CHECK_EQ(1, break_event_breakpoint_id); // 4:Evaluate dog() (which has a breakpoint). v8::Debug::SendCommand(buffer, AsciiToUtf16(command_3, buffer)); // V8 thread hits breakpoint in dog(). breakpoints_barriers->semaphore_1->Wait(); // wait for break event // Must have hit breakpoint #2. CHECK_EQ(2, break_event_breakpoint_id); // 5:Evaluate (x + 1). v8::Debug::SendCommand(buffer, AsciiToUtf16(command_4, buffer)); // Evaluate (x + 1) finishes. breakpoints_barriers->semaphore_1->Wait(); // Must have result 108. CHECK_EQ(108, evaluate_int_result); // 6:Continue evaluation of dog(). v8::Debug::SendCommand(buffer, AsciiToUtf16(command_5, buffer)); // Evaluate dog() finishes. breakpoints_barriers->semaphore_1->Wait(); // Must have result 107. CHECK_EQ(107, evaluate_int_result); // 7:Continue evaluation of source_2, finish cat(17), hit breakpoint // in cat(19). v8::Debug::SendCommand(buffer, AsciiToUtf16(command_6, buffer)); // Message callback gets break event. breakpoints_barriers->semaphore_1->Wait(); // wait for break event // Must have hit breakpoint #1. CHECK_EQ(1, break_event_breakpoint_id); // 8: Evaluate dog() with breaks disabled. v8::Debug::SendCommand(buffer, AsciiToUtf16(command_7, buffer)); // Evaluate dog() finishes. breakpoints_barriers->semaphore_1->Wait(); // Must have result 116. CHECK_EQ(116, evaluate_int_result); // 9: Continue evaluation of source2, reach end. v8::Debug::SendCommand(buffer, AsciiToUtf16(command_8, buffer)); } void TestRecursiveBreakpointsGeneric(bool global_evaluate) { i::FLAG_debugger_auto_break = true; BreakpointsDebuggerThread breakpoints_debugger_thread(global_evaluate); BreakpointsV8Thread breakpoints_v8_thread; // Create a V8 environment Barriers stack_allocated_breakpoints_barriers; stack_allocated_breakpoints_barriers.Initialize(); breakpoints_barriers = &stack_allocated_breakpoints_barriers; breakpoints_v8_thread.Start(); breakpoints_debugger_thread.Start(); breakpoints_v8_thread.Join(); breakpoints_debugger_thread.Join(); } TEST(RecursiveBreakpoints) { TestRecursiveBreakpointsGeneric(false); } TEST(RecursiveBreakpointsGlobal) { TestRecursiveBreakpointsGeneric(true); } static void DummyDebugEventListener(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { } TEST(SetDebugEventListenerOnUninitializedVM) { v8::Debug::SetDebugEventListener(DummyDebugEventListener); } static void DummyMessageHandler(const v8::Debug::Message& message) { } TEST(SetMessageHandlerOnUninitializedVM) { v8::Debug::SetMessageHandler2(DummyMessageHandler); } TEST(DebugBreakOnUninitializedVM) { v8::Debug::DebugBreak(); } TEST(SendCommandToUninitializedVM) { const char* dummy_command = "{}"; uint16_t dummy_buffer[80]; int dummy_length = AsciiToUtf16(dummy_command, dummy_buffer); v8::Debug::SendCommand(dummy_buffer, dummy_length); } // Source for a JavaScript function which returns the data parameter of a // function called in the context of the debugger. If no data parameter is // passed it throws an exception. static const char* debugger_call_with_data_source = "function debugger_call_with_data(exec_state, data) {" " if (data) return data;" " throw 'No data!'" "}"; v8::Handle<v8::Function> debugger_call_with_data; // Source for a JavaScript function which returns the data parameter of a // function called in the context of the debugger. If no data parameter is // passed it throws an exception. static const char* debugger_call_with_closure_source = "var x = 3;" "(function (exec_state) {" " if (exec_state.y) return x - 1;" " exec_state.y = x;" " return exec_state.y" "})"; v8::Handle<v8::Function> debugger_call_with_closure; // Function to retrieve the number of JavaScript frames by calling a JavaScript // in the debugger. static v8::Handle<v8::Value> CheckFrameCount(const v8::Arguments& args) { CHECK(v8::Debug::Call(frame_count)->IsNumber()); CHECK_EQ(args[0]->Int32Value(), v8::Debug::Call(frame_count)->Int32Value()); return v8::Undefined(); } // Function to retrieve the source line of the top JavaScript frame by calling a // JavaScript function in the debugger. static v8::Handle<v8::Value> CheckSourceLine(const v8::Arguments& args) { CHECK(v8::Debug::Call(frame_source_line)->IsNumber()); CHECK_EQ(args[0]->Int32Value(), v8::Debug::Call(frame_source_line)->Int32Value()); return v8::Undefined(); } // Function to test passing an additional parameter to a JavaScript function // called in the debugger. It also tests that functions called in the debugger // can throw exceptions. static v8::Handle<v8::Value> CheckDataParameter(const v8::Arguments& args) { v8::Handle<v8::String> data = v8::String::New("Test"); CHECK(v8::Debug::Call(debugger_call_with_data, data)->IsString()); CHECK(v8::Debug::Call(debugger_call_with_data).IsEmpty()); CHECK(v8::Debug::Call(debugger_call_with_data).IsEmpty()); v8::TryCatch catcher; v8::Debug::Call(debugger_call_with_data); CHECK(catcher.HasCaught()); CHECK(catcher.Exception()->IsString()); return v8::Undefined(); } // Function to test using a JavaScript with closure in the debugger. static v8::Handle<v8::Value> CheckClosure(const v8::Arguments& args) { CHECK(v8::Debug::Call(debugger_call_with_closure)->IsNumber()); CHECK_EQ(3, v8::Debug::Call(debugger_call_with_closure)->Int32Value()); return v8::Undefined(); } // Test functions called through the debugger. TEST(CallFunctionInDebugger) { // Create and enter a context with the functions CheckFrameCount, // CheckSourceLine and CheckDataParameter installed. v8::HandleScope scope; v8::Handle<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New(); global_template->Set(v8::String::New("CheckFrameCount"), v8::FunctionTemplate::New(CheckFrameCount)); global_template->Set(v8::String::New("CheckSourceLine"), v8::FunctionTemplate::New(CheckSourceLine)); global_template->Set(v8::String::New("CheckDataParameter"), v8::FunctionTemplate::New(CheckDataParameter)); global_template->Set(v8::String::New("CheckClosure"), v8::FunctionTemplate::New(CheckClosure)); v8::Handle<v8::Context> context = v8::Context::New(NULL, global_template); v8::Context::Scope context_scope(context); // Compile a function for checking the number of JavaScript frames. v8::Script::Compile(v8::String::New(frame_count_source))->Run(); frame_count = v8::Local<v8::Function>::Cast( context->Global()->Get(v8::String::New("frame_count"))); // Compile a function for returning the source line for the top frame. v8::Script::Compile(v8::String::New(frame_source_line_source))->Run(); frame_source_line = v8::Local<v8::Function>::Cast( context->Global()->Get(v8::String::New("frame_source_line"))); // Compile a function returning the data parameter. v8::Script::Compile(v8::String::New(debugger_call_with_data_source))->Run(); debugger_call_with_data = v8::Local<v8::Function>::Cast( context->Global()->Get(v8::String::New("debugger_call_with_data"))); // Compile a function capturing closure. debugger_call_with_closure = v8::Local<v8::Function>::Cast( v8::Script::Compile( v8::String::New(debugger_call_with_closure_source))->Run()); // Calling a function through the debugger returns 0 frames if there are // no JavaScript frames. CHECK_EQ(v8::Integer::New(0), v8::Debug::Call(frame_count)); // Test that the number of frames can be retrieved. v8::Script::Compile(v8::String::New("CheckFrameCount(1)"))->Run(); v8::Script::Compile(v8::String::New("function f() {" " CheckFrameCount(2);" "}; f()"))->Run(); // Test that the source line can be retrieved. v8::Script::Compile(v8::String::New("CheckSourceLine(0)"))->Run(); v8::Script::Compile(v8::String::New("function f() {\n" " CheckSourceLine(1)\n" " CheckSourceLine(2)\n" " CheckSourceLine(3)\n" "}; f()"))->Run(); // Test that a parameter can be passed to a function called in the debugger. v8::Script::Compile(v8::String::New("CheckDataParameter()"))->Run(); // Test that a function with closure can be run in the debugger. v8::Script::Compile(v8::String::New("CheckClosure()"))->Run(); // Test that the source line is correct when there is a line offset. v8::ScriptOrigin origin(v8::String::New("test"), v8::Integer::New(7)); v8::Script::Compile(v8::String::New("CheckSourceLine(7)"), &origin)->Run(); v8::Script::Compile(v8::String::New("function f() {\n" " CheckSourceLine(8)\n" " CheckSourceLine(9)\n" " CheckSourceLine(10)\n" "}; f()"), &origin)->Run(); } // Debugger message handler which counts the number of breaks. static void SendContinueCommand(); static void MessageHandlerBreakPointHitCount( const v8::Debug::Message& message) { if (message.IsEvent() && message.GetEvent() == v8::Break) { // Count the number of breaks. break_point_hit_count++; SendContinueCommand(); } } // Test that clearing the debug event listener actually clears all break points // and related information. TEST(DebuggerUnload) { DebugLocalContext env; // Check debugger is unloaded before it is used. CheckDebuggerUnloaded(); // Set a debug event listener. break_point_hit_count = 0; v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); { v8::HandleScope scope; // Create a couple of functions for the test. v8::Local<v8::Function> foo = CompileFunction(&env, "function foo(){x=1}", "foo"); v8::Local<v8::Function> bar = CompileFunction(&env, "function bar(){y=2}", "bar"); // Set some break points. SetBreakPoint(foo, 0); SetBreakPoint(foo, 4); SetBreakPoint(bar, 0); SetBreakPoint(bar, 4); // Make sure that the break points are there. break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); bar->Call(env->Global(), 0, NULL); CHECK_EQ(4, break_point_hit_count); } // Remove the debug event listener without clearing breakpoints. Do this // outside a handle scope. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(true); // Now set a debug message handler. break_point_hit_count = 0; v8::Debug::SetMessageHandler2(MessageHandlerBreakPointHitCount); { v8::HandleScope scope; // Get the test functions again. v8::Local<v8::Function> foo(v8::Local<v8::Function>::Cast( env->Global()->Get(v8::String::New("foo")))); foo->Call(env->Global(), 0, NULL); CHECK_EQ(0, break_point_hit_count); // Set break points and run again. SetBreakPoint(foo, 0); SetBreakPoint(foo, 4); foo->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); } // Remove the debug message handler without clearing breakpoints. Do this // outside a handle scope. v8::Debug::SetMessageHandler2(NULL); CheckDebuggerUnloaded(true); } // Sends continue command to the debugger. static void SendContinueCommand() { const int kBufferSize = 1000; uint16_t buffer[kBufferSize]; const char* command_continue = "{\"seq\":0," "\"type\":\"request\"," "\"command\":\"continue\"}"; v8::Debug::SendCommand(buffer, AsciiToUtf16(command_continue, buffer)); } // Debugger message handler which counts the number of times it is called. static int message_handler_hit_count = 0; static void MessageHandlerHitCount(const v8::Debug::Message& message) { message_handler_hit_count++; static char print_buffer[1000]; v8::String::Value json(message.GetJSON()); Utf16ToAscii(*json, json.length(), print_buffer); if (IsExceptionEventMessage(print_buffer)) { // Send a continue command for exception events. SendContinueCommand(); } } // Test clearing the debug message handler. TEST(DebuggerClearMessageHandler) { v8::HandleScope scope; DebugLocalContext env; // Check debugger is unloaded before it is used. CheckDebuggerUnloaded(); // Set a debug message handler. v8::Debug::SetMessageHandler2(MessageHandlerHitCount); // Run code to throw a unhandled exception. This should end up in the message // handler. CompileRun("throw 1"); // The message handler should be called. CHECK_GT(message_handler_hit_count, 0); // Clear debug message handler. message_handler_hit_count = 0; v8::Debug::SetMessageHandler(NULL); // Run code to throw a unhandled exception. This should end up in the message // handler. CompileRun("throw 1"); // The message handler should not be called more. CHECK_EQ(0, message_handler_hit_count); CheckDebuggerUnloaded(true); } // Debugger message handler which clears the message handler while active. static void MessageHandlerClearingMessageHandler( const v8::Debug::Message& message) { message_handler_hit_count++; // Clear debug message handler. v8::Debug::SetMessageHandler(NULL); } // Test clearing the debug message handler while processing a debug event. TEST(DebuggerClearMessageHandlerWhileActive) { v8::HandleScope scope; DebugLocalContext env; // Check debugger is unloaded before it is used. CheckDebuggerUnloaded(); // Set a debug message handler. v8::Debug::SetMessageHandler2(MessageHandlerClearingMessageHandler); // Run code to throw a unhandled exception. This should end up in the message // handler. CompileRun("throw 1"); // The message handler should be called. CHECK_EQ(1, message_handler_hit_count); CheckDebuggerUnloaded(true); } /* Test DebuggerHostDispatch */ /* In this test, the debugger waits for a command on a breakpoint * and is dispatching host commands while in the infinite loop. */ class HostDispatchV8Thread : public v8::internal::Thread { public: HostDispatchV8Thread() : Thread("HostDispatchV8Thread") { } void Run(); }; class HostDispatchDebuggerThread : public v8::internal::Thread { public: HostDispatchDebuggerThread() : Thread("HostDispatchDebuggerThread") { } void Run(); }; Barriers* host_dispatch_barriers; static void HostDispatchMessageHandler(const v8::Debug::Message& message) { static char print_buffer[1000]; v8::String::Value json(message.GetJSON()); Utf16ToAscii(*json, json.length(), print_buffer); } static void HostDispatchDispatchHandler() { host_dispatch_barriers->semaphore_1->Signal(); } void HostDispatchV8Thread::Run() { const char* source_1 = "var y_global = 3;\n" "function cat( new_value ) {\n" " var x = new_value;\n" " y_global = 4;\n" " x = 3 * x + 1;\n" " y_global = 5;\n" " return x;\n" "}\n" "\n"; const char* source_2 = "cat(17);\n"; v8::V8::Initialize(); v8::HandleScope scope; DebugLocalContext env; // Set up message and host dispatch handlers. v8::Debug::SetMessageHandler2(HostDispatchMessageHandler); v8::Debug::SetHostDispatchHandler(HostDispatchDispatchHandler, 10 /* ms */); CompileRun(source_1); host_dispatch_barriers->barrier_1.Wait(); host_dispatch_barriers->barrier_2.Wait(); CompileRun(source_2); } void HostDispatchDebuggerThread::Run() { const int kBufSize = 1000; uint16_t buffer[kBufSize]; const char* command_1 = "{\"seq\":101," "\"type\":\"request\"," "\"command\":\"setbreakpoint\"," "\"arguments\":{\"type\":\"function\",\"target\":\"cat\",\"line\":3}}"; const char* command_2 = "{\"seq\":102," "\"type\":\"request\"," "\"command\":\"continue\"}"; // v8 thread initializes, runs source_1 host_dispatch_barriers->barrier_1.Wait(); // 1: Set breakpoint in cat(). v8::Debug::SendCommand(buffer, AsciiToUtf16(command_1, buffer)); host_dispatch_barriers->barrier_2.Wait(); // v8 thread starts compiling source_2. // Break happens, to run queued commands and host dispatches. // Wait for host dispatch to be processed. host_dispatch_barriers->semaphore_1->Wait(); // 2: Continue evaluation v8::Debug::SendCommand(buffer, AsciiToUtf16(command_2, buffer)); } TEST(DebuggerHostDispatch) { HostDispatchDebuggerThread host_dispatch_debugger_thread; HostDispatchV8Thread host_dispatch_v8_thread; i::FLAG_debugger_auto_break = true; // Create a V8 environment Barriers stack_allocated_host_dispatch_barriers; stack_allocated_host_dispatch_barriers.Initialize(); host_dispatch_barriers = &stack_allocated_host_dispatch_barriers; host_dispatch_v8_thread.Start(); host_dispatch_debugger_thread.Start(); host_dispatch_v8_thread.Join(); host_dispatch_debugger_thread.Join(); } /* Test DebugMessageDispatch */ /* In this test, the V8 thread waits for a message from the debug thread. * The DebugMessageDispatchHandler is executed from the debugger thread * which signals the V8 thread to wake up. */ class DebugMessageDispatchV8Thread : public v8::internal::Thread { public: DebugMessageDispatchV8Thread() : Thread("DebugMessageDispatchV8Thread") { } void Run(); }; class DebugMessageDispatchDebuggerThread : public v8::internal::Thread { public: DebugMessageDispatchDebuggerThread() : Thread("DebugMessageDispatchDebuggerThread") { } void Run(); }; Barriers* debug_message_dispatch_barriers; static void DebugMessageHandler() { debug_message_dispatch_barriers->semaphore_1->Signal(); } void DebugMessageDispatchV8Thread::Run() { v8::V8::Initialize(); v8::HandleScope scope; DebugLocalContext env; // Set up debug message dispatch handler. v8::Debug::SetDebugMessageDispatchHandler(DebugMessageHandler); CompileRun("var y = 1 + 2;\n"); debug_message_dispatch_barriers->barrier_1.Wait(); debug_message_dispatch_barriers->semaphore_1->Wait(); debug_message_dispatch_barriers->barrier_2.Wait(); } void DebugMessageDispatchDebuggerThread::Run() { debug_message_dispatch_barriers->barrier_1.Wait(); SendContinueCommand(); debug_message_dispatch_barriers->barrier_2.Wait(); } TEST(DebuggerDebugMessageDispatch) { DebugMessageDispatchDebuggerThread debug_message_dispatch_debugger_thread; DebugMessageDispatchV8Thread debug_message_dispatch_v8_thread; i::FLAG_debugger_auto_break = true; // Create a V8 environment Barriers stack_allocated_debug_message_dispatch_barriers; stack_allocated_debug_message_dispatch_barriers.Initialize(); debug_message_dispatch_barriers = &stack_allocated_debug_message_dispatch_barriers; debug_message_dispatch_v8_thread.Start(); debug_message_dispatch_debugger_thread.Start(); debug_message_dispatch_v8_thread.Join(); debug_message_dispatch_debugger_thread.Join(); } TEST(DebuggerAgent) { v8::V8::Initialize(); i::Debugger* debugger = i::Isolate::Current()->debugger(); // Make sure these ports is not used by other tests to allow tests to run in // parallel. const int kPort1 = 5858; const int kPort2 = 5857; const int kPort3 = 5856; // Make a string with the port2 number. const int kPortBufferLen = 6; char port2_str[kPortBufferLen]; OS::SNPrintF(i::Vector<char>(port2_str, kPortBufferLen), "%d", kPort2); bool ok; // Initialize the socket library. i::Socket::SetUp(); // Test starting and stopping the agent without any client connection. debugger->StartAgent("test", kPort1); debugger->StopAgent(); // Test starting the agent, connecting a client and shutting down the agent // with the client connected. ok = debugger->StartAgent("test", kPort2); CHECK(ok); debugger->WaitForAgent(); i::Socket* client = i::OS::CreateSocket(); ok = client->Connect("localhost", port2_str); CHECK(ok); // It is important to wait for a message from the agent. Otherwise, // we can close the server socket during "accept" syscall, making it failing // (at least on Linux), and the test will work incorrectly. char buf; ok = client->Receive(&buf, 1) == 1; CHECK(ok); debugger->StopAgent(); delete client; // Test starting and stopping the agent with the required port already // occoupied. i::Socket* server = i::OS::CreateSocket(); server->Bind(kPort3); debugger->StartAgent("test", kPort3); debugger->StopAgent(); delete server; } class DebuggerAgentProtocolServerThread : public i::Thread { public: explicit DebuggerAgentProtocolServerThread(int port) : Thread("DebuggerAgentProtocolServerThread"), port_(port), server_(NULL), client_(NULL), listening_(OS::CreateSemaphore(0)) { } ~DebuggerAgentProtocolServerThread() { // Close both sockets. delete client_; delete server_; delete listening_; } void Run(); void WaitForListening() { listening_->Wait(); } char* body() { return *body_; } private: int port_; i::SmartArrayPointer<char> body_; i::Socket* server_; // Server socket used for bind/accept. i::Socket* client_; // Single client connection used by the test. i::Semaphore* listening_; // Signalled when the server is in listen mode. }; void DebuggerAgentProtocolServerThread::Run() { bool ok; // Create the server socket and bind it to the requested port. server_ = i::OS::CreateSocket(); CHECK(server_ != NULL); ok = server_->Bind(port_); CHECK(ok); // Listen for new connections. ok = server_->Listen(1); CHECK(ok); listening_->Signal(); // Accept a connection. client_ = server_->Accept(); CHECK(client_ != NULL); // Receive a debugger agent protocol message. i::DebuggerAgentUtil::ReceiveMessage(client_); } TEST(DebuggerAgentProtocolOverflowHeader) { // Make sure this port is not used by other tests to allow tests to run in // parallel. const int kPort = 5860; static const char* kLocalhost = "localhost"; // Make a string with the port number. const int kPortBufferLen = 6; char port_str[kPortBufferLen]; OS::SNPrintF(i::Vector<char>(port_str, kPortBufferLen), "%d", kPort); // Initialize the socket library. i::Socket::SetUp(); // Create a socket server to receive a debugger agent message. DebuggerAgentProtocolServerThread* server = new DebuggerAgentProtocolServerThread(kPort); server->Start(); server->WaitForListening(); // Connect. i::Socket* client = i::OS::CreateSocket(); CHECK(client != NULL); bool ok = client->Connect(kLocalhost, port_str); CHECK(ok); // Send headers which overflow the receive buffer. static const int kBufferSize = 1000; char buffer[kBufferSize]; // Long key and short value: XXXX....XXXX:0\r\n. for (int i = 0; i < kBufferSize - 4; i++) { buffer[i] = 'X'; } buffer[kBufferSize - 4] = ':'; buffer[kBufferSize - 3] = '0'; buffer[kBufferSize - 2] = '\r'; buffer[kBufferSize - 1] = '\n'; client->Send(buffer, kBufferSize); // Short key and long value: X:XXXX....XXXX\r\n. buffer[0] = 'X'; buffer[1] = ':'; for (int i = 2; i < kBufferSize - 2; i++) { buffer[i] = 'X'; } buffer[kBufferSize - 2] = '\r'; buffer[kBufferSize - 1] = '\n'; client->Send(buffer, kBufferSize); // Add empty body to request. const char* content_length_zero_header = "Content-Length:0\r\n"; client->Send(content_length_zero_header, StrLength(content_length_zero_header)); client->Send("\r\n", 2); // Wait until data is received. server->Join(); // Check for empty body. CHECK(server->body() == NULL); // Close the client before the server to avoid TIME_WAIT issues. client->Shutdown(); delete client; delete server; } // Test for issue http://code.google.com/p/v8/issues/detail?id=289. // Make sure that DebugGetLoadedScripts doesn't return scripts // with disposed external source. class EmptyExternalStringResource : public v8::String::ExternalStringResource { public: EmptyExternalStringResource() { empty_[0] = 0; } virtual ~EmptyExternalStringResource() {} virtual size_t length() const { return empty_.length(); } virtual const uint16_t* data() const { return empty_.start(); } private: ::v8::internal::EmbeddedVector<uint16_t, 1> empty_; }; TEST(DebugGetLoadedScripts) { v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); EmptyExternalStringResource source_ext_str; v8::Local<v8::String> source = v8::String::NewExternal(&source_ext_str); v8::Handle<v8::Script> evil_script(v8::Script::Compile(source)); // "use" evil_script to make the compiler happy. (void) evil_script; Handle<i::ExternalTwoByteString> i_source( i::ExternalTwoByteString::cast(*v8::Utils::OpenHandle(*source))); // This situation can happen if source was an external string disposed // by its owner. i_source->set_resource(0); bool allow_natives_syntax = i::FLAG_allow_natives_syntax; i::FLAG_allow_natives_syntax = true; CompileRun( "var scripts = %DebugGetLoadedScripts();" "var count = scripts.length;" "for (var i = 0; i < count; ++i) {" " scripts[i].line_ends;" "}"); // Must not crash while accessing line_ends. i::FLAG_allow_natives_syntax = allow_natives_syntax; // Some scripts are retrieved - at least the number of native scripts. CHECK_GT((*env)->Global()->Get(v8::String::New("count"))->Int32Value(), 8); } // Test script break points set on lines. TEST(ScriptNameAndData) { v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); // Create functions for retrieving script name and data for the function on // the top frame when hitting a break point. frame_script_name = CompileFunction(&env, frame_script_name_source, "frame_script_name"); frame_script_data = CompileFunction(&env, frame_script_data_source, "frame_script_data"); compiled_script_data = CompileFunction(&env, compiled_script_data_source, "compiled_script_data"); v8::Debug::SetDebugEventListener(DebugEventBreakPointHitCount, v8::Undefined()); // Test function source. v8::Local<v8::String> script = v8::String::New( "function f() {\n" " debugger;\n" "}\n"); v8::ScriptOrigin origin1 = v8::ScriptOrigin(v8::String::New("name")); v8::Handle<v8::Script> script1 = v8::Script::Compile(script, &origin1); script1->SetData(v8::String::New("data")); script1->Run(); v8::Local<v8::Function> f; f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); f->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); CHECK_EQ("name", last_script_name_hit); CHECK_EQ("data", last_script_data_hit); // Compile the same script again without setting data. As the compilation // cache is disabled when debugging expect the data to be missing. v8::Script::Compile(script, &origin1)->Run(); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); f->Call(env->Global(), 0, NULL); CHECK_EQ(2, break_point_hit_count); CHECK_EQ("name", last_script_name_hit); CHECK_EQ("", last_script_data_hit); // Undefined results in empty string. v8::Local<v8::String> data_obj_source = v8::String::New( "({ a: 'abc',\n" " b: 123,\n" " toString: function() { return this.a + ' ' + this.b; }\n" "})\n"); v8::Local<v8::Value> data_obj = v8::Script::Compile(data_obj_source)->Run(); v8::ScriptOrigin origin2 = v8::ScriptOrigin(v8::String::New("new name")); v8::Handle<v8::Script> script2 = v8::Script::Compile(script, &origin2); script2->Run(); script2->SetData(data_obj->ToString()); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); f->Call(env->Global(), 0, NULL); CHECK_EQ(3, break_point_hit_count); CHECK_EQ("new name", last_script_name_hit); CHECK_EQ("abc 123", last_script_data_hit); v8::Handle<v8::Script> script3 = v8::Script::Compile(script, &origin2, NULL, v8::String::New("in compile")); CHECK_EQ("in compile", last_script_data_hit); script3->Run(); f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); f->Call(env->Global(), 0, NULL); CHECK_EQ(4, break_point_hit_count); CHECK_EQ("in compile", last_script_data_hit); } static v8::Persistent<v8::Context> expected_context; static v8::Handle<v8::Value> expected_context_data; // Check that the expected context is the one generating the debug event. static void ContextCheckMessageHandler(const v8::Debug::Message& message) { CHECK(message.GetEventContext() == expected_context); CHECK(message.GetEventContext()->GetData()->StrictEquals( expected_context_data)); message_handler_hit_count++; static char print_buffer[1000]; v8::String::Value json(message.GetJSON()); Utf16ToAscii(*json, json.length(), print_buffer); // Send a continue command for break events. if (IsBreakEventMessage(print_buffer)) { SendContinueCommand(); } } // Test which creates two contexts and sets different embedder data on each. // Checks that this data is set correctly and that when the debug message // handler is called the expected context is the one active. TEST(ContextData) { v8::HandleScope scope; v8::Debug::SetMessageHandler2(ContextCheckMessageHandler); // Create two contexts. v8::Persistent<v8::Context> context_1; v8::Persistent<v8::Context> context_2; v8::Handle<v8::ObjectTemplate> global_template = v8::Handle<v8::ObjectTemplate>(); v8::Handle<v8::Value> global_object = v8::Handle<v8::Value>(); context_1 = v8::Context::New(NULL, global_template, global_object); context_2 = v8::Context::New(NULL, global_template, global_object); // Default data value is undefined. CHECK(context_1->GetData()->IsUndefined()); CHECK(context_2->GetData()->IsUndefined()); // Set and check different data values. v8::Handle<v8::String> data_1 = v8::String::New("1"); v8::Handle<v8::String> data_2 = v8::String::New("2"); context_1->SetData(data_1); context_2->SetData(data_2); CHECK(context_1->GetData()->StrictEquals(data_1)); CHECK(context_2->GetData()->StrictEquals(data_2)); // Simple test function which causes a break. const char* source = "function f() { debugger; }"; // Enter and run function in the first context. { v8::Context::Scope context_scope(context_1); expected_context = context_1; expected_context_data = data_1; v8::Local<v8::Function> f = CompileFunction(source, "f"); f->Call(context_1->Global(), 0, NULL); } // Enter and run function in the second context. { v8::Context::Scope context_scope(context_2); expected_context = context_2; expected_context_data = data_2; v8::Local<v8::Function> f = CompileFunction(source, "f"); f->Call(context_2->Global(), 0, NULL); } // Two times compile event and two times break event. CHECK_GT(message_handler_hit_count, 4); v8::Debug::SetMessageHandler2(NULL); CheckDebuggerUnloaded(); } // Debug message handler which issues a debug break when it hits a break event. static int message_handler_break_hit_count = 0; static void DebugBreakMessageHandler(const v8::Debug::Message& message) { // Schedule a debug break for break events. if (message.IsEvent() && message.GetEvent() == v8::Break) { message_handler_break_hit_count++; if (message_handler_break_hit_count == 1) { v8::Debug::DebugBreak(); } } // Issue a continue command if this event will not cause the VM to start // running. if (!message.WillStartRunning()) { SendContinueCommand(); } } // Test that a debug break can be scheduled while in a message handler. TEST(DebugBreakInMessageHandler) { v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetMessageHandler2(DebugBreakMessageHandler); // Test functions. const char* script = "function f() { debugger; g(); } function g() { }"; CompileRun(script); v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); v8::Local<v8::Function> g = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("g"))); // Call f then g. The debugger statement in f will casue a break which will // cause another break. f->Call(env->Global(), 0, NULL); CHECK_EQ(2, message_handler_break_hit_count); // Calling g will not cause any additional breaks. g->Call(env->Global(), 0, NULL); CHECK_EQ(2, message_handler_break_hit_count); } #ifndef V8_INTERPRETED_REGEXP // Debug event handler which gets the function on the top frame and schedules a // break a number of times. static void DebugEventDebugBreak( v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { if (event == v8::Break) { break_point_hit_count++; // Get the name of the top frame function. if (!frame_function_name.IsEmpty()) { // Get the name of the function. const int argc = 2; v8::Handle<v8::Value> argv[argc] = { exec_state, v8::Integer::New(0) }; v8::Handle<v8::Value> result = frame_function_name->Call(exec_state, argc, argv); if (result->IsUndefined()) { last_function_hit[0] = '\0'; } else { CHECK(result->IsString()); v8::Handle<v8::String> function_name(result->ToString()); function_name->WriteAscii(last_function_hit); } } // Keep forcing breaks. if (break_point_hit_count < 20) { v8::Debug::DebugBreak(); } } } TEST(RegExpDebugBreak) { // This test only applies to native regexps. v8::HandleScope scope; DebugLocalContext env; // Create a function for checking the function when hitting a break point. frame_function_name = CompileFunction(&env, frame_function_name_source, "frame_function_name"); // Test RegExp which matches white spaces and comments at the begining of a // source line. const char* script = "var sourceLineBeginningSkip = /^(?:[ \\v\\h]*(?:\\/\\*.*?\\*\\/)*)*/;\n" "function f(s) { return s.match(sourceLineBeginningSkip)[0].length; }"; v8::Local<v8::Function> f = CompileFunction(script, "f"); const int argc = 1; v8::Handle<v8::Value> argv[argc] = { v8::String::New(" /* xxx */ a=0;") }; v8::Local<v8::Value> result = f->Call(env->Global(), argc, argv); CHECK_EQ(12, result->Int32Value()); v8::Debug::SetDebugEventListener(DebugEventDebugBreak); v8::Debug::DebugBreak(); result = f->Call(env->Global(), argc, argv); // Check that there was only one break event. Matching RegExp should not // cause Break events. CHECK_EQ(1, break_point_hit_count); CHECK_EQ("f", last_function_hit); } #endif // V8_INTERPRETED_REGEXP // Common part of EvalContextData and NestedBreakEventContextData tests. static void ExecuteScriptForContextCheck() { // Create a context. v8::Persistent<v8::Context> context_1; v8::Handle<v8::ObjectTemplate> global_template = v8::Handle<v8::ObjectTemplate>(); context_1 = v8::Context::New(NULL, global_template); // Default data value is undefined. CHECK(context_1->GetData()->IsUndefined()); // Set and check a data value. v8::Handle<v8::String> data_1 = v8::String::New("1"); context_1->SetData(data_1); CHECK(context_1->GetData()->StrictEquals(data_1)); // Simple test function with eval that causes a break. const char* source = "function f() { eval('debugger;'); }"; // Enter and run function in the context. { v8::Context::Scope context_scope(context_1); expected_context = context_1; expected_context_data = data_1; v8::Local<v8::Function> f = CompileFunction(source, "f"); f->Call(context_1->Global(), 0, NULL); } } // Test which creates a context and sets embedder data on it. Checks that this // data is set correctly and that when the debug message handler is called for // break event in an eval statement the expected context is the one returned by // Message.GetEventContext. TEST(EvalContextData) { v8::HandleScope scope; v8::Debug::SetMessageHandler2(ContextCheckMessageHandler); ExecuteScriptForContextCheck(); // One time compile event and one time break event. CHECK_GT(message_handler_hit_count, 2); v8::Debug::SetMessageHandler2(NULL); CheckDebuggerUnloaded(); } static bool sent_eval = false; static int break_count = 0; static int continue_command_send_count = 0; // Check that the expected context is the one generating the debug event // including the case of nested break event. static void DebugEvalContextCheckMessageHandler( const v8::Debug::Message& message) { CHECK(message.GetEventContext() == expected_context); CHECK(message.GetEventContext()->GetData()->StrictEquals( expected_context_data)); message_handler_hit_count++; static char print_buffer[1000]; v8::String::Value json(message.GetJSON()); Utf16ToAscii(*json, json.length(), print_buffer); if (IsBreakEventMessage(print_buffer)) { break_count++; if (!sent_eval) { sent_eval = true; const int kBufferSize = 1000; uint16_t buffer[kBufferSize]; const char* eval_command = "{\"seq\":0," "\"type\":\"request\"," "\"command\":\"evaluate\"," "\"arguments\":{\"expression\":\"debugger;\"," "\"global\":true,\"disable_break\":false}}"; // Send evaluate command. v8::Debug::SendCommand(buffer, AsciiToUtf16(eval_command, buffer)); return; } else { // It's a break event caused by the evaluation request above. SendContinueCommand(); continue_command_send_count++; } } else if (IsEvaluateResponseMessage(print_buffer) && continue_command_send_count < 2) { // Response to the evaluation request. We're still on the breakpoint so // send continue. SendContinueCommand(); continue_command_send_count++; } } // Tests that context returned for break event is correct when the event occurs // in 'evaluate' debugger request. TEST(NestedBreakEventContextData) { v8::HandleScope scope; break_count = 0; message_handler_hit_count = 0; v8::Debug::SetMessageHandler2(DebugEvalContextCheckMessageHandler); ExecuteScriptForContextCheck(); // One time compile event and two times break event. CHECK_GT(message_handler_hit_count, 3); // One break from the source and another from the evaluate request. CHECK_EQ(break_count, 2); v8::Debug::SetMessageHandler2(NULL); CheckDebuggerUnloaded(); } // Debug event listener which counts the script collected events. int script_collected_count = 0; static void DebugEventScriptCollectedEvent(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { // Count the number of breaks. if (event == v8::ScriptCollected) { script_collected_count++; } } // Test that scripts collected are reported through the debug event listener. TEST(ScriptCollectedEvent) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); break_point_hit_count = 0; script_collected_count = 0; v8::HandleScope scope; DebugLocalContext env; // Request the loaded scripts to initialize the debugger script cache. debug->GetLoadedScripts(); // Do garbage collection to ensure that only the script in this test will be // collected afterwards. HEAP->CollectAllGarbage(Heap::kNoGCFlags); script_collected_count = 0; v8::Debug::SetDebugEventListener(DebugEventScriptCollectedEvent, v8::Undefined()); { v8::Script::Compile(v8::String::New("eval('a=1')"))->Run(); v8::Script::Compile(v8::String::New("eval('a=2')"))->Run(); } // Do garbage collection to collect the script above which is no longer // referenced. HEAP->CollectAllGarbage(Heap::kNoGCFlags); CHECK_EQ(2, script_collected_count); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } // Debug event listener which counts the script collected events. int script_collected_message_count = 0; static void ScriptCollectedMessageHandler(const v8::Debug::Message& message) { // Count the number of scripts collected. if (message.IsEvent() && message.GetEvent() == v8::ScriptCollected) { script_collected_message_count++; v8::Handle<v8::Context> context = message.GetEventContext(); CHECK(context.IsEmpty()); } } // Test that GetEventContext doesn't fail and return empty handle for // ScriptCollected events. TEST(ScriptCollectedEventContext) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); script_collected_message_count = 0; v8::HandleScope scope; { // Scope for the DebugLocalContext. DebugLocalContext env; // Request the loaded scripts to initialize the debugger script cache. debug->GetLoadedScripts(); // Do garbage collection to ensure that only the script in this test will be // collected afterwards. HEAP->CollectAllGarbage(Heap::kNoGCFlags); v8::Debug::SetMessageHandler2(ScriptCollectedMessageHandler); { v8::Script::Compile(v8::String::New("eval('a=1')"))->Run(); v8::Script::Compile(v8::String::New("eval('a=2')"))->Run(); } } // Do garbage collection to collect the script above which is no longer // referenced. HEAP->CollectAllGarbage(Heap::kNoGCFlags); CHECK_EQ(2, script_collected_message_count); v8::Debug::SetMessageHandler2(NULL); } // Debug event listener which counts the after compile events. int after_compile_message_count = 0; static void AfterCompileMessageHandler(const v8::Debug::Message& message) { // Count the number of scripts collected. if (message.IsEvent()) { if (message.GetEvent() == v8::AfterCompile) { after_compile_message_count++; } else if (message.GetEvent() == v8::Break) { SendContinueCommand(); } } } // Tests that after compile event is sent as many times as there are scripts // compiled. TEST(AfterCompileMessageWhenMessageHandlerIsReset) { v8::HandleScope scope; DebugLocalContext env; after_compile_message_count = 0; const char* script = "var a=1"; v8::Debug::SetMessageHandler2(AfterCompileMessageHandler); v8::Script::Compile(v8::String::New(script))->Run(); v8::Debug::SetMessageHandler2(NULL); v8::Debug::SetMessageHandler2(AfterCompileMessageHandler); v8::Debug::DebugBreak(); v8::Script::Compile(v8::String::New(script))->Run(); // Setting listener to NULL should cause debugger unload. v8::Debug::SetMessageHandler2(NULL); CheckDebuggerUnloaded(); // Compilation cache should be disabled when debugger is active. CHECK_EQ(2, after_compile_message_count); } // Tests that break event is sent when message handler is reset. TEST(BreakMessageWhenMessageHandlerIsReset) { v8::HandleScope scope; DebugLocalContext env; after_compile_message_count = 0; const char* script = "function f() {};"; v8::Debug::SetMessageHandler2(AfterCompileMessageHandler); v8::Script::Compile(v8::String::New(script))->Run(); v8::Debug::SetMessageHandler2(NULL); v8::Debug::SetMessageHandler2(AfterCompileMessageHandler); v8::Debug::DebugBreak(); v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); f->Call(env->Global(), 0, NULL); // Setting message handler to NULL should cause debugger unload. v8::Debug::SetMessageHandler2(NULL); CheckDebuggerUnloaded(); // Compilation cache should be disabled when debugger is active. CHECK_EQ(1, after_compile_message_count); } static int exception_event_count = 0; static void ExceptionMessageHandler(const v8::Debug::Message& message) { if (message.IsEvent() && message.GetEvent() == v8::Exception) { exception_event_count++; SendContinueCommand(); } } // Tests that exception event is sent when message handler is reset. TEST(ExceptionMessageWhenMessageHandlerIsReset) { v8::HandleScope scope; DebugLocalContext env; // For this test, we want to break on uncaught exceptions: ChangeBreakOnException(false, true); exception_event_count = 0; const char* script = "function f() {throw new Error()};"; v8::Debug::SetMessageHandler2(AfterCompileMessageHandler); v8::Script::Compile(v8::String::New(script))->Run(); v8::Debug::SetMessageHandler2(NULL); v8::Debug::SetMessageHandler2(ExceptionMessageHandler); v8::Local<v8::Function> f = v8::Local<v8::Function>::Cast(env->Global()->Get(v8::String::New("f"))); f->Call(env->Global(), 0, NULL); // Setting message handler to NULL should cause debugger unload. v8::Debug::SetMessageHandler2(NULL); CheckDebuggerUnloaded(); CHECK_EQ(1, exception_event_count); } // Tests after compile event is sent when there are some provisional // breakpoints out of the scripts lines range. TEST(ProvisionalBreakpointOnLineOutOfRange) { v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); const char* script = "function f() {};"; const char* resource_name = "test_resource"; // Set a couple of provisional breakpoint on lines out of the script lines // range. int sbp1 = SetScriptBreakPointByNameFromJS(resource_name, 3, -1 /* no column */); int sbp2 = SetScriptBreakPointByNameFromJS(resource_name, 5, 5); after_compile_message_count = 0; v8::Debug::SetMessageHandler2(AfterCompileMessageHandler); v8::ScriptOrigin origin( v8::String::New(resource_name), v8::Integer::New(10), v8::Integer::New(1)); // Compile a script whose first line number is greater than the breakpoints' // lines. v8::Script::Compile(v8::String::New(script), &origin)->Run(); // If the script is compiled successfully there is exactly one after compile // event. In case of an exception in debugger code after compile event is not // sent. CHECK_EQ(1, after_compile_message_count); ClearBreakPointFromJS(sbp1); ClearBreakPointFromJS(sbp2); v8::Debug::SetMessageHandler2(NULL); } static void BreakMessageHandler(const v8::Debug::Message& message) { i::Isolate* isolate = i::Isolate::Current(); if (message.IsEvent() && message.GetEvent() == v8::Break) { // Count the number of breaks. break_point_hit_count++; v8::HandleScope scope; message.GetJSON(); SendContinueCommand(); } else if (message.IsEvent() && message.GetEvent() == v8::AfterCompile) { v8::HandleScope scope; bool is_debug_break = isolate->stack_guard()->IsDebugBreak(); // Force DebugBreak flag while serializer is working. isolate->stack_guard()->DebugBreak(); // Force serialization to trigger some internal JS execution. message.GetJSON(); // Restore previous state. if (is_debug_break) { isolate->stack_guard()->DebugBreak(); } else { isolate->stack_guard()->Continue(i::DEBUGBREAK); } } } // Test that if DebugBreak is forced it is ignored when code from // debug-delay.js is executed. TEST(NoDebugBreakInAfterCompileMessageHandler) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which sets the break flag and counts. v8::Debug::SetMessageHandler2(BreakMessageHandler); // Set the debug break flag. v8::Debug::DebugBreak(); // Create a function for testing stepping. const char* src = "function f() { eval('var x = 10;'); } "; v8::Local<v8::Function> f = CompileFunction(&env, src, "f"); // There should be only one break event. CHECK_EQ(1, break_point_hit_count); // Set the debug break flag again. v8::Debug::DebugBreak(); f->Call(env->Global(), 0, NULL); // There should be one more break event when the script is evaluated in 'f'. CHECK_EQ(2, break_point_hit_count); // Get rid of the debug message handler. v8::Debug::SetMessageHandler2(NULL); CheckDebuggerUnloaded(); } static int counting_message_handler_counter; static void CountingMessageHandler(const v8::Debug::Message& message) { counting_message_handler_counter++; } // Test that debug messages get processed when ProcessDebugMessages is called. TEST(ProcessDebugMessages) { v8::HandleScope scope; DebugLocalContext env; counting_message_handler_counter = 0; v8::Debug::SetMessageHandler2(CountingMessageHandler); const int kBufferSize = 1000; uint16_t buffer[kBufferSize]; const char* scripts_command = "{\"seq\":0," "\"type\":\"request\"," "\"command\":\"scripts\"}"; // Send scripts command. v8::Debug::SendCommand(buffer, AsciiToUtf16(scripts_command, buffer)); CHECK_EQ(0, counting_message_handler_counter); v8::Debug::ProcessDebugMessages(); // At least one message should come CHECK_GE(counting_message_handler_counter, 1); counting_message_handler_counter = 0; v8::Debug::SendCommand(buffer, AsciiToUtf16(scripts_command, buffer)); v8::Debug::SendCommand(buffer, AsciiToUtf16(scripts_command, buffer)); CHECK_EQ(0, counting_message_handler_counter); v8::Debug::ProcessDebugMessages(); // At least two messages should come CHECK_GE(counting_message_handler_counter, 2); // Get rid of the debug message handler. v8::Debug::SetMessageHandler2(NULL); CheckDebuggerUnloaded(); } struct BacktraceData { static int frame_counter; static void MessageHandler(const v8::Debug::Message& message) { char print_buffer[1000]; v8::String::Value json(message.GetJSON()); Utf16ToAscii(*json, json.length(), print_buffer, 1000); if (strstr(print_buffer, "backtrace") == NULL) { return; } frame_counter = GetTotalFramesInt(print_buffer); } }; int BacktraceData::frame_counter; // Test that debug messages get processed when ProcessDebugMessages is called. TEST(Backtrace) { v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetMessageHandler2(BacktraceData::MessageHandler); const int kBufferSize = 1000; uint16_t buffer[kBufferSize]; const char* scripts_command = "{\"seq\":0," "\"type\":\"request\"," "\"command\":\"backtrace\"}"; // Check backtrace from ProcessDebugMessages. BacktraceData::frame_counter = -10; v8::Debug::SendCommand(buffer, AsciiToUtf16(scripts_command, buffer)); v8::Debug::ProcessDebugMessages(); CHECK_EQ(BacktraceData::frame_counter, 0); v8::Handle<v8::String> void0 = v8::String::New("void(0)"); v8::Handle<v8::Script> script = v8::Script::Compile(void0, void0); // Check backtrace from "void(0)" script. BacktraceData::frame_counter = -10; v8::Debug::SendCommand(buffer, AsciiToUtf16(scripts_command, buffer)); script->Run(); CHECK_EQ(BacktraceData::frame_counter, 1); // Get rid of the debug message handler. v8::Debug::SetMessageHandler2(NULL); CheckDebuggerUnloaded(); } TEST(GetMirror) { v8::HandleScope scope; DebugLocalContext env; v8::Handle<v8::Value> obj = v8::Debug::GetMirror(v8::String::New("hodja")); v8::Handle<v8::Function> run_test = v8::Handle<v8::Function>::Cast( v8::Script::New( v8::String::New( "function runTest(mirror) {" " return mirror.isString() && (mirror.length() == 5);" "}" "" "runTest;"))->Run()); v8::Handle<v8::Value> result = run_test->Call(env->Global(), 1, &obj); CHECK(result->IsTrue()); } // Test that the debug break flag works with function.apply. TEST(DebugBreakFunctionApply) { v8::HandleScope scope; DebugLocalContext env; // Create a function for testing breaking in apply. v8::Local<v8::Function> foo = CompileFunction( &env, "function baz(x) { }" "function bar(x) { baz(); }" "function foo(){ bar.apply(this, [1]); }", "foo"); // Register a debug event listener which steps and counts. v8::Debug::SetDebugEventListener(DebugEventBreakMax); // Set the debug break flag before calling the code using function.apply. v8::Debug::DebugBreak(); // Limit the number of debug breaks. This is a regression test for issue 493 // where this test would enter an infinite loop. break_point_hit_count = 0; max_break_point_hit_count = 10000; // 10000 => infinite loop. foo->Call(env->Global(), 0, NULL); // When keeping the debug break several break will happen. CHECK_GT(break_point_hit_count, 1); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } v8::Handle<v8::Context> debugee_context; v8::Handle<v8::Context> debugger_context; // Property getter that checks that current and calling contexts // are both the debugee contexts. static v8::Handle<v8::Value> NamedGetterWithCallingContextCheck( v8::Local<v8::String> name, const v8::AccessorInfo& info) { CHECK_EQ(0, strcmp(*v8::String::AsciiValue(name), "a")); v8::Handle<v8::Context> current = v8::Context::GetCurrent(); CHECK(current == debugee_context); CHECK(current != debugger_context); v8::Handle<v8::Context> calling = v8::Context::GetCalling(); CHECK(calling == debugee_context); CHECK(calling != debugger_context); return v8::Int32::New(1); } // Debug event listener that checks if the first argument of a function is // an object with property 'a' == 1. If the property has custom accessor // this handler will eventually invoke it. static void DebugEventGetAtgumentPropertyValue( v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { if (event == v8::Break) { break_point_hit_count++; CHECK(debugger_context == v8::Context::GetCurrent()); v8::Handle<v8::Function> func(v8::Function::Cast(*CompileRun( "(function(exec_state) {\n" " return (exec_state.frame(0).argumentValue(0).property('a').\n" " value().value() == 1);\n" "})"))); const int argc = 1; v8::Handle<v8::Value> argv[argc] = { exec_state }; v8::Handle<v8::Value> result = func->Call(exec_state, argc, argv); CHECK(result->IsTrue()); } } TEST(CallingContextIsNotDebugContext) { v8::internal::Debug* debug = v8::internal::Isolate::Current()->debug(); // Create and enter a debugee context. v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); // Save handles to the debugger and debugee contexts to be used in // NamedGetterWithCallingContextCheck. debugee_context = v8::Local<v8::Context>(*env); debugger_context = v8::Utils::ToLocal(debug->debug_context()); // Create object with 'a' property accessor. v8::Handle<v8::ObjectTemplate> named = v8::ObjectTemplate::New(); named->SetAccessor(v8::String::New("a"), NamedGetterWithCallingContextCheck); env->Global()->Set(v8::String::New("obj"), named->NewInstance()); // Register the debug event listener v8::Debug::SetDebugEventListener(DebugEventGetAtgumentPropertyValue); // Create a function that invokes debugger. v8::Local<v8::Function> foo = CompileFunction( &env, "function bar(x) { debugger; }" "function foo(){ bar(obj); }", "foo"); break_point_hit_count = 0; foo->Call(env->Global(), 0, NULL); CHECK_EQ(1, break_point_hit_count); v8::Debug::SetDebugEventListener(NULL); debugee_context = v8::Handle<v8::Context>(); debugger_context = v8::Handle<v8::Context>(); CheckDebuggerUnloaded(); } TEST(DebugContextIsPreservedBetweenAccesses) { v8::HandleScope scope; v8::Local<v8::Context> context1 = v8::Debug::GetDebugContext(); v8::Local<v8::Context> context2 = v8::Debug::GetDebugContext(); CHECK_EQ(*context1, *context2); } static v8::Handle<v8::Value> expected_callback_data; static void DebugEventContextChecker(const v8::Debug::EventDetails& details) { CHECK(details.GetEventContext() == expected_context); CHECK_EQ(expected_callback_data, details.GetCallbackData()); } // Check that event details contain context where debug event occured. TEST(DebugEventContext) { v8::HandleScope scope; expected_callback_data = v8::Int32::New(2010); v8::Debug::SetDebugEventListener2(DebugEventContextChecker, expected_callback_data); expected_context = v8::Context::New(); v8::Context::Scope context_scope(expected_context); v8::Script::Compile(v8::String::New("(function(){debugger;})();"))->Run(); expected_context.Dispose(); expected_context.Clear(); v8::Debug::SetDebugEventListener(NULL); expected_context_data = v8::Handle<v8::Value>(); CheckDebuggerUnloaded(); } static void* expected_break_data; static bool was_debug_break_called; static bool was_debug_event_called; static void DebugEventBreakDataChecker(const v8::Debug::EventDetails& details) { if (details.GetEvent() == v8::BreakForCommand) { CHECK_EQ(expected_break_data, details.GetClientData()); was_debug_event_called = true; } else if (details.GetEvent() == v8::Break) { was_debug_break_called = true; } } // Check that event details contain context where debug event occured. TEST(DebugEventBreakData) { v8::HandleScope scope; DebugLocalContext env; v8::Debug::SetDebugEventListener2(DebugEventBreakDataChecker); TestClientData::constructor_call_counter = 0; TestClientData::destructor_call_counter = 0; expected_break_data = NULL; was_debug_event_called = false; was_debug_break_called = false; v8::Debug::DebugBreakForCommand(); v8::Script::Compile(v8::String::New("(function(x){return x;})(1);"))->Run(); CHECK(was_debug_event_called); CHECK(!was_debug_break_called); TestClientData* data1 = new TestClientData(); expected_break_data = data1; was_debug_event_called = false; was_debug_break_called = false; v8::Debug::DebugBreakForCommand(data1); v8::Script::Compile(v8::String::New("(function(x){return x+1;})(1);"))->Run(); CHECK(was_debug_event_called); CHECK(!was_debug_break_called); expected_break_data = NULL; was_debug_event_called = false; was_debug_break_called = false; v8::Debug::DebugBreak(); v8::Script::Compile(v8::String::New("(function(x){return x+2;})(1);"))->Run(); CHECK(!was_debug_event_called); CHECK(was_debug_break_called); TestClientData* data2 = new TestClientData(); expected_break_data = data2; was_debug_event_called = false; was_debug_break_called = false; v8::Debug::DebugBreak(); v8::Debug::DebugBreakForCommand(data2); v8::Script::Compile(v8::String::New("(function(x){return x+3;})(1);"))->Run(); CHECK(was_debug_event_called); CHECK(was_debug_break_called); CHECK_EQ(2, TestClientData::constructor_call_counter); CHECK_EQ(TestClientData::constructor_call_counter, TestClientData::destructor_call_counter); v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } static bool debug_event_break_deoptimize_done = false; static void DebugEventBreakDeoptimize(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { if (event == v8::Break) { if (!frame_function_name.IsEmpty()) { // Get the name of the function. const int argc = 2; v8::Handle<v8::Value> argv[argc] = { exec_state, v8::Integer::New(0) }; v8::Handle<v8::Value> result = frame_function_name->Call(exec_state, argc, argv); if (!result->IsUndefined()) { char fn[80]; CHECK(result->IsString()); v8::Handle<v8::String> function_name(result->ToString()); function_name->WriteAscii(fn); if (strcmp(fn, "bar") == 0) { i::Deoptimizer::DeoptimizeAll(); debug_event_break_deoptimize_done = true; } } } v8::Debug::DebugBreak(); } } // Test deoptimization when execution is broken using the debug break stack // check interrupt. TEST(DeoptimizeDuringDebugBreak) { v8::HandleScope scope; DebugLocalContext env; env.ExposeDebug(); // Create a function for checking the function when hitting a break point. frame_function_name = CompileFunction(&env, frame_function_name_source, "frame_function_name"); // Set a debug event listener which will keep interrupting execution until // debug break. When inside function bar it will deoptimize all functions. // This tests lazy deoptimization bailout for the stack check, as the first // time in function bar when using debug break and no break points will be at // the initial stack check. v8::Debug::SetDebugEventListener(DebugEventBreakDeoptimize, v8::Undefined()); // Compile and run function bar which will optimize it for some flag settings. v8::Script::Compile(v8::String::New("function bar(){}; bar()"))->Run(); // Set debug break and call bar again. v8::Debug::DebugBreak(); v8::Script::Compile(v8::String::New("bar()"))->Run(); CHECK(debug_event_break_deoptimize_done); v8::Debug::SetDebugEventListener(NULL); } static void DebugEventBreakWithOptimizedStack(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { if (event == v8::Break) { if (!frame_function_name.IsEmpty()) { for (int i = 0; i < 2; i++) { const int argc = 2; v8::Handle<v8::Value> argv[argc] = { exec_state, v8::Integer::New(i) }; // Get the name of the function in frame i. v8::Handle<v8::Value> result = frame_function_name->Call(exec_state, argc, argv); CHECK(result->IsString()); v8::Handle<v8::String> function_name(result->ToString()); CHECK(function_name->Equals(v8::String::New("loop"))); // Get the name of the first argument in frame i. result = frame_argument_name->Call(exec_state, argc, argv); CHECK(result->IsString()); v8::Handle<v8::String> argument_name(result->ToString()); CHECK(argument_name->Equals(v8::String::New("count"))); // Get the value of the first argument in frame i. If the // funtion is optimized the value will be undefined, otherwise // the value will be '1 - i'. // // TODO(3141533): We should be able to get the real value for // optimized frames. result = frame_argument_value->Call(exec_state, argc, argv); CHECK(result->IsUndefined() || (result->Int32Value() == 1 - i)); // Get the name of the first local variable. result = frame_local_name->Call(exec_state, argc, argv); CHECK(result->IsString()); v8::Handle<v8::String> local_name(result->ToString()); CHECK(local_name->Equals(v8::String::New("local"))); // Get the value of the first local variable. If the function // is optimized the value will be undefined, otherwise it will // be 42. // // TODO(3141533): We should be able to get the real value for // optimized frames. result = frame_local_value->Call(exec_state, argc, argv); CHECK(result->IsUndefined() || (result->Int32Value() == 42)); } } } } static v8::Handle<v8::Value> ScheduleBreak(const v8::Arguments& args) { v8::Debug::SetDebugEventListener(DebugEventBreakWithOptimizedStack, v8::Undefined()); v8::Debug::DebugBreak(); return v8::Undefined(); } TEST(DebugBreakStackInspection) { v8::HandleScope scope; DebugLocalContext env; frame_function_name = CompileFunction(&env, frame_function_name_source, "frame_function_name"); frame_argument_name = CompileFunction(&env, frame_argument_name_source, "frame_argument_name"); frame_argument_value = CompileFunction(&env, frame_argument_value_source, "frame_argument_value"); frame_local_name = CompileFunction(&env, frame_local_name_source, "frame_local_name"); frame_local_value = CompileFunction(&env, frame_local_value_source, "frame_local_value"); v8::Handle<v8::FunctionTemplate> schedule_break_template = v8::FunctionTemplate::New(ScheduleBreak); v8::Handle<v8::Function> schedule_break = schedule_break_template->GetFunction(); env->Global()->Set(v8_str("scheduleBreak"), schedule_break); const char* src = "function loop(count) {" " var local = 42;" " if (count < 1) { scheduleBreak(); loop(count + 1); }" "}" "loop(0);"; v8::Script::Compile(v8::String::New(src))->Run(); } // Test that setting the terminate execution flag during debug break processing. static void TestDebugBreakInLoop(const char* loop_head, const char** loop_bodies, const char* loop_tail) { // Receive 100 breaks for each test and then terminate JavaScript execution. static const int kBreaksPerTest = 100; for (int i = 0; loop_bodies[i] != NULL; i++) { // Perform a lazy deoptimization after various numbers of breaks // have been hit. for (int j = 0; j < 11; j++) { break_point_hit_count_deoptimize = j; if (j == 10) { break_point_hit_count_deoptimize = kBreaksPerTest; } break_point_hit_count = 0; max_break_point_hit_count = kBreaksPerTest; terminate_after_max_break_point_hit = true; EmbeddedVector<char, 1024> buffer; OS::SNPrintF(buffer, "function f() {%s%s%s}", loop_head, loop_bodies[i], loop_tail); // Function with infinite loop. CompileRun(buffer.start()); // Set the debug break to enter the debugger as soon as possible. v8::Debug::DebugBreak(); // Call function with infinite loop. CompileRun("f();"); CHECK_EQ(kBreaksPerTest, break_point_hit_count); CHECK(!v8::V8::IsExecutionTerminating()); } } } TEST(DebugBreakLoop) { v8::HandleScope scope; DebugLocalContext env; // Register a debug event listener which sets the break flag and counts. v8::Debug::SetDebugEventListener(DebugEventBreakMax); // Create a function for getting the frame count when hitting the break. frame_count = CompileFunction(&env, frame_count_source, "frame_count"); CompileRun("var a = 1;"); CompileRun("function g() { }"); CompileRun("function h() { }"); const char* loop_bodies[] = { "", "g()", "if (a == 0) { g() }", "if (a == 1) { g() }", "if (a == 0) { g() } else { h() }", "if (a == 0) { continue }", "if (a == 1) { continue }", "switch (a) { case 1: g(); }", "switch (a) { case 1: continue; }", "switch (a) { case 1: g(); break; default: h() }", "switch (a) { case 1: continue; break; default: h() }", NULL }; TestDebugBreakInLoop("while (true) {", loop_bodies, "}"); TestDebugBreakInLoop("while (a == 1) {", loop_bodies, "}"); TestDebugBreakInLoop("do {", loop_bodies, "} while (true)"); TestDebugBreakInLoop("do {", loop_bodies, "} while (a == 1)"); TestDebugBreakInLoop("for (;;) {", loop_bodies, "}"); TestDebugBreakInLoop("for (;a == 1;) {", loop_bodies, "}"); // Get rid of the debug event listener. v8::Debug::SetDebugEventListener(NULL); CheckDebuggerUnloaded(); } v8::Local<v8::Script> inline_script; static void DebugBreakInlineListener(v8::DebugEvent event, v8::Handle<v8::Object> exec_state, v8::Handle<v8::Object> event_data, v8::Handle<v8::Value> data) { if (event != v8::Break) return; int expected_frame_count = 4; int expected_line_number[] = {1, 4, 7, 12}; i::Handle<i::Object> compiled_script = v8::Utils::OpenHandle(*inline_script); i::Handle<i::Script> source_script = i::Handle<i::Script>(i::Script::cast( i::JSFunction::cast(*compiled_script)->shared()->script())); int break_id = v8::internal::Isolate::Current()->debug()->break_id(); char script[128]; i::Vector<char> script_vector(script, sizeof(script)); OS::SNPrintF(script_vector, "%%GetFrameCount(%d)", break_id); v8::Local<v8::Value> result = CompileRun(script); int frame_count = result->Int32Value(); CHECK_EQ(expected_frame_count, frame_count); for (int i = 0; i < frame_count; i++) { // The 5. element in the returned array of GetFrameDetails contains the // source position of that frame. OS::SNPrintF(script_vector, "%%GetFrameDetails(%d, %d)[5]", break_id, i); v8::Local<v8::Value> result = CompileRun(script); CHECK_EQ(expected_line_number[i], i::GetScriptLineNumber(source_script, result->Int32Value())); } v8::Debug::SetDebugEventListener(NULL); v8::V8::TerminateExecution(); } TEST(DebugBreakInline) { i::FLAG_allow_natives_syntax = true; v8::HandleScope scope; DebugLocalContext env; const char* source = "function debug(b) { \n" " if (b) debugger; \n" "} \n" "function f(b) { \n" " debug(b) \n" "}; \n" "function g(b) { \n" " f(b); \n" "}; \n" "g(false); \n" "g(false); \n" "%OptimizeFunctionOnNextCall(g); \n" "g(true);"; v8::Debug::SetDebugEventListener(DebugBreakInlineListener); inline_script = v8::Script::Compile(v8::String::New(source)); inline_script->Run(); } #endif // ENABLE_DEBUGGER_SUPPORT