JezK
Edit File: string-add.js
// Copyright 2009 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. assertEquals("ab", "a" + "b", "ll"); assertEquals("12", "1" + "2", "dd"); assertEquals("123", "1" + "2" + "3", "ddd"); assertEquals("123", 1 + "2" + "3", "ndd"); assertEquals("123", "1" + 2 + "3", "dnd"); assertEquals("123", "1" + "2" + 3, "ddn"); assertEquals("123", "1" + 2 + 3, "dnn"); assertEquals("123", 1 + "2" + 3, "ndn"); assertEquals("33", 1 + 2 + "3", "nnd"); var x = "1"; assertEquals("12", x + 2, "vn"); assertEquals("12", x + "2", "vd"); assertEquals("21", 2 + x, "nv"); assertEquals("21", "2" + x, "dv"); var y = "2"; assertEquals("12", x + y, "vdvd"); x = 1; assertEquals("12", x + y, "vnvd"); y = 2; assertEquals(3, x + y, "vnvn"); x = "1"; assertEquals("12", x + y, "vdvn"); y = "2"; assertEquals("12", x + y, "vdvd2"); (function(x, y) { var z = "3"; var w = "4"; assertEquals("11", x + x, "xx"); assertEquals("12", x + y, "xy"); assertEquals("13", x + z, "xz"); assertEquals("14", x + w, "xw"); assertEquals("21", y + x, "yx"); assertEquals("22", y + y, "yy"); assertEquals("23", y + z, "yz"); assertEquals("24", y + w, "yw"); assertEquals("31", z + x, "zx"); assertEquals("32", z + y, "zy"); assertEquals("33", z + z, "zz"); assertEquals("34", z + w, "zw"); assertEquals("41", w + x, "wx"); assertEquals("42", w + y, "wy"); assertEquals("43", w + z, "wz"); assertEquals("44", w + w, "ww"); (function(){x = 1; z = 3;})(); assertEquals(2, x + x, "x'x"); assertEquals("12", x + y, "x'y"); assertEquals(4, x + z, "x'z'"); assertEquals("14", x + w, "x'w"); assertEquals("21", y + x, "yx'"); assertEquals("22", y + y, "yy"); assertEquals("23", y + z, "yz'"); assertEquals("24", y + w, "yw"); assertEquals(4, z + x, "z'x'"); assertEquals("32", z + y, "z'y"); assertEquals(6, z + z, "z'z'"); assertEquals("34", z + w, "z'w"); assertEquals("41", w + x, "wx'"); assertEquals("42", w + y, "wy"); assertEquals("43", w + z, "wz'"); assertEquals("44", w + w, "ww"); })("1", "2"); assertEquals("142", "1" + new Number(42), "sN"); assertEquals("421", new Number(42) + "1", "Ns"); assertEquals(84, new Number(42) + new Number(42), "NN"); assertEquals("142", "1" + new String("42"), "sS"); assertEquals("421", new String("42") + "1", "Ss"); assertEquals("142", "1" + new String("42"), "sS"); assertEquals("4242", new String("42") + new String("42"), "SS"); assertEquals("1true", "1" + true, "sb"); assertEquals("true1", true + "1", "bs"); assertEquals(2, true + true, "bs"); assertEquals("1true", "1" + new Boolean(true), "sB"); assertEquals("true1", new Boolean(true) + "1", "Bs"); assertEquals(2, new Boolean(true) + new Boolean(true), "Bs"); assertEquals("1undefined", "1" + void 0, "sv"); assertEquals("undefined1", (void 0) + "1", "vs"); assertTrue(isNaN(void 0 + void 0), "vv"); assertEquals("1null", "1" + null, "su"); assertEquals("null1", null + "1", "us"); assertEquals(0, null + null, "uu"); (function (i) { // Check that incoming frames are merged correctly. var x; var y; var z; var w; switch (i) { case 1: x = 42; y = "stry"; z = "strz"; w = 42; break; default: x = "strx", y = 42; z = "strz"; w = 42; break; } var resxx = x + x; var resxy = x + y; var resxz = x + z; var resxw = x + w; var resyx = y + x; var resyy = y + y; var resyz = y + z; var resyw = y + w; var reszx = z + x; var reszy = z + y; var reszz = z + z; var reszw = z + w; var reswx = w + x; var reswy = w + y; var reswz = w + z; var resww = w + w; assertEquals(84, resxx, "swxx"); assertEquals("42stry", resxy, "swxy"); assertEquals("42strz", resxz, "swxz"); assertEquals(84, resxw, "swxw"); assertEquals("stry42", resyx, "swyx"); assertEquals("strystry", resyy, "swyy"); assertEquals("strystrz", resyz, "swyz"); assertEquals("stry42", resyw, "swyw"); assertEquals("strz42", reszx, "swzx"); assertEquals("strzstry", reszy, "swzy"); assertEquals("strzstrz", reszz, "swzz"); assertEquals("strz42", reszw, "swzw"); assertEquals(84, reswx, "swwx"); assertEquals("42stry", reswy, "swwy"); assertEquals("42strz", reswz, "swwz"); assertEquals(84, resww, "swww"); })(1); // Generate ascii and non ascii strings from length 0 to 20. var ascii = 'aaaaaaaaaaaaaaaaaaaa'; var non_ascii = '\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234\u1234'; assertEquals(20, ascii.length); assertEquals(20, non_ascii.length); var a = Array(21); var b = Array(21); for (var i = 0; i <= 20; i++) { a[i] = ascii.substring(0, i); b[i] = non_ascii.substring(0, i); } // Add ascii and non-ascii strings generating strings with length from 0 to 20. for (var i = 0; i <= 20; i++) { for (var j = 0; j < i; j++) { assertEquals(a[i], a[j] + a[i - j]) assertEquals(b[i], b[j] + b[i - j]) } }