JezK
Edit File: FileChangeCheckerTest.cpp
#include "tut.h" #include "support/Support.h" #include "FileChangeChecker.h" #include "SystemTime.h" #include <unistd.h> using namespace Passenger; using namespace std; using namespace Test; namespace tut { struct FileChangeCheckerTest { FileChangeCheckerTest() { } ~FileChangeCheckerTest() { unlink("test.txt"); unlink("test2.txt"); SystemTime::release(); } }; DEFINE_TEST_GROUP(FileChangeCheckerTest); TEST_METHOD(1) { // If a file is checked for the first time, then it // returns whether the file exists. FileChangeChecker checker(10); touchFile("test.txt"); ensure(checker.changed("test.txt")); ensure(!checker.changed("test2.txt")); } TEST_METHOD(2) { // If a file is checked for the first time, and its // directory is not accessible, then false is returned. if (geteuid() != 0) { // Root can read everything so no point in // testing if we're running as root. FileChangeChecker checker(10); TempDir d("test.tmp"); touchFile("test.tmp/test.txt"); system("chmod a= test.tmp"); ensure(!checker.changed("test.tmp/test.txt")); // Should still be false. ensure(!checker.changed("test.tmp/test.txt")); // Now make it accessible again... system("chmod u=rwx test.tmp"); ensure(checker.changed("test.tmp/test.txt")); } } TEST_METHOD(3) { // File is not changed if it didn't exist and // still doesn't exist. FileChangeChecker checker(10); checker.changed("test.txt"); ensure("test.txt not changed", !checker.changed("test.txt")); checker.changed("test2.txt"); ensure("test2.txt not changed", !checker.changed("test2.txt")); } TEST_METHOD(4) { // File is not changed if its ctime and mtime didn't change. FileChangeChecker checker(10); touchFile("test.txt"); checker.changed("test.txt"); ensure(!checker.changed("test.txt")); touchFile("test2.txt"); checker.changed("test2.txt"); ensure(!checker.changed("test2.txt")); } TEST_METHOD(5) { // File is changed if it didn't exist but has now been created. FileChangeChecker checker(10); checker.changed("test.txt"); checker.changed("test2.txt"); touchFile("test.txt"); touchFile("test2.txt"); ensure(checker.changed("test.txt")); ensure(checker.changed("test2.txt")); } TEST_METHOD(6) { // File is changed if existed but has now been deleted. FileChangeChecker checker(10); touchFile("test.txt"); checker.changed("test.txt"); unlink("test.txt"); ensure("test.txt is considered changed if it has been deleted", checker.changed("test.txt")); touchFile("test2.txt"); checker.changed("test2.txt"); unlink("test2.txt"); ensure("test2.txt is considered changed if it has been deleted", checker.changed("test2.txt")); } TEST_METHOD(7) { // File is changed if its mtime changed. FileChangeChecker checker(1); touchFile("test.txt", 5); checker.changed("test.txt"); touchFile("test.txt", 10); ensure("First check: changed", checker.changed("test.txt")); ensure("Second check: unchanged", !checker.changed("test.txt")); touchFile("test2.txt", 5); checker.changed("test2.txt"); touchFile("test2.txt", 10); ensure("First check test2.txt: changed", checker.changed("test2.txt")); ensure("Second check test2.txt: unchanged", !checker.changed("test2.txt")); } TEST_METHOD(8) { // If a file is not checked for the first time and its // information is still in the cache, but the directory // in which the file lives is now suddenly inaccessible, // then false is returned. if (geteuid() != 0) { // Root can read everything so no point in // testing if we're running as root. FileChangeChecker checker(10); TempDir d("test.tmp"); touchFile("test.tmp/test.txt", 1); checker.changed("test.tmp/test.txt"); touchFile("test.tmp/test.txt", 2); system("chmod a= test.tmp"); ensure("First check returns false", !checker.changed("test.tmp/test.txt")); // Now make it accessible again... system("chmod u=rwx test.tmp"); ensure("Second check returns true", checker.changed("test.tmp/test.txt")); } } TEST_METHOD(9) { // Throttling works. SystemTime::force(5); FileChangeChecker checker(1); checker.changed("test.txt", 3); touchFile("test.txt"); ensure(!checker.changed("test.txt", 3)); SystemTime::force(6); ensure(!checker.changed("test.txt", 3)); SystemTime::force(8); ensure(checker.changed("test.txt", 3)); ensure(!checker.changed("test.txt", 3)); } TEST_METHOD(10) { // Test scenario involving multiple files. FileChangeChecker checker(10); checker.changed("test.txt"); checker.changed("test2.txt"); checker.changed("test3.txt"); touchFile("test2.txt", 1); ensure(!checker.changed("test.txt")); ensure(checker.changed("test2.txt")); ensure(!checker.changed("test3.txt")); touchFile("test.txt", 2); touchFile("test3.txt", 3); ensure(checker.changed("test.txt")); ensure(!checker.changed("test2.txt")); ensure(checker.changed("test3.txt")); } TEST_METHOD(11) { // Different filenames are treated as different files. FileChangeChecker checker(10); checker.changed("test.txt"); checker.changed("./test.txt"); touchFile("test.txt", 1); ensure(checker.changed("test.txt")); ensure(checker.changed("./test.txt")); } TEST_METHOD(12) { if (geteuid() != 0) { // Root can read everything so no point in // testing if we're running as root. FileChangeChecker checker(10); TempDir d("test.tmp"); touchFile("test.tmp/test.txt"); checker.changed("test.tmp/test.txt"); unlink("test.tmp/test.txt"); system("chmod a= test.tmp"); ensure(!checker.changed("test.tmp/test.txt")); system("chmod u=rwx test.tmp"); ensure(checker.changed("test.tmp/test.txt")); } } TEST_METHOD(13) { // Size limitation works. FileChangeChecker checker(2); touchFile("test.txt", 1); touchFile("test2.txt", 2); touchFile("test3.txt", 3); checker.changed("test.txt"); checker.changed("test2.txt"); checker.changed("test3.txt"); // test.txt is now removed from the file list. unlink("test.txt"); unlink("test2.txt"); unlink("test3.txt"); ensure("test2.txt is still in the file list", checker.changed("test2.txt")); ensure("test3.txt is still in the file list", checker.changed("test3.txt")); ensure("test.txt is removed from the file list", !checker.changed("test.txt")); } TEST_METHOD(14) { // Increasing the file list size dynamically works. FileChangeChecker checker(2); touchFile("test.txt", 1); touchFile("test2.txt", 2); touchFile("test3.txt", 3); checker.changed("test.txt"); checker.changed("test2.txt"); checker.changed("test3.txt"); // test.txt is now removed from the file list. checker.setMaxSize(3); unlink("test.txt"); unlink("test2.txt"); unlink("test3.txt"); ensure("test.txt is removed from the file list", !checker.knows("test.txt")); // The above changed() call should not remove test2.txt from the file list. ensure("test2.txt is still in the file list", checker.knows("test2.txt")); ensure("test3.txt is still in the file list", checker.knows("test3.txt")); checker.changed("test.txt"); checker.changed("test4.txt"); ensure("test2.txt is removed from the file list, again", !checker.knows("test2.txt")); } TEST_METHOD(16) { // Decreasing the file list size dynamically works, and will // remove the oldest entries. FileChangeChecker checker(4); checker.changed("test.txt"); checker.changed("test2.txt"); checker.changed("test3.txt"); checker.changed("test4.txt"); checker.setMaxSize(2); ensure(!checker.knows("test.txt")); ensure(!checker.knows("test2.txt")); ensure(checker.knows("test3.txt")); ensure(checker.knows("test4.txt")); checker.changed("test.txt"); ensure(!checker.knows("test3.txt")); } TEST_METHOD(17) { // An initial maxSize of 0 makes the file list's size unlimited. FileChangeChecker checker(0); checker.changed("test.txt"); checker.changed("test2.txt"); checker.changed("test3.txt"); checker.changed("test4.txt"); ensure(checker.knows("test.txt")); ensure(checker.knows("test2.txt")); ensure(checker.knows("test3.txt")); ensure(checker.knows("test4.txt")); } TEST_METHOD(18) { // Dynamically setting the file list size to 0 makes // the file list's size unlimited. FileChangeChecker checker(2); checker.changed("test.txt"); checker.changed("test2.txt"); checker.setMaxSize(0); checker.changed("test3.txt"); checker.changed("test4.txt"); ensure(checker.knows("test.txt")); ensure(checker.knows("test2.txt")); ensure(checker.knows("test3.txt")); ensure(checker.knows("test4.txt")); } TEST_METHOD(19) { // Changing the file list size dynamically from 0 to non-0 works; // it removes the oldest entries, if necessary. FileChangeChecker checker(0); checker.changed("test.txt"); checker.changed("test2.txt"); checker.changed("test3.txt"); checker.changed("test4.txt"); checker.changed("test5.txt"); checker.setMaxSize(2); ensure(!checker.knows("test.txt")); ensure(!checker.knows("test2.txt")); ensure(!checker.knows("test3.txt")); ensure(checker.knows("test4.txt")); ensure(checker.knows("test5.txt")); } }