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comparison: js/src/tests/ecma/Expressions/11.9.1.js
js/src/tests/ecma/Expressions/11.9.1.js
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 | |
| 7 /** | |
| 8 File Name: 11.9.1.js | |
| 9 ECMA Section: 11.9.1 The equals operator ( == ) | |
| 10 Description: | |
| 11 | |
| 12 The production EqualityExpression: | |
| 13 EqualityExpression == RelationalExpression is evaluated as follows: | |
| 14 | |
| 15 1. Evaluate EqualityExpression. | |
| 16 2. Call GetValue(Result(1)). | |
| 17 3. Evaluate RelationalExpression. | |
| 18 4. Call GetValue(Result(3)). | |
| 19 5. Perform the comparison Result(4) == Result(2). (See section 11.9.3) | |
| 20 6. Return Result(5). | |
| 21 Author: christine@netscape.com | |
| 22 Date: 12 november 1997 | |
| 23 */ | |
| 24 var SECTION = "11.9.1"; | |
| 25 var VERSION = "ECMA_1"; | |
| 26 var BUGNUMBER="77391"; | |
| 27 startTest(); | |
| 28 | |
| 29 writeHeaderToLog( SECTION + " The equals operator ( == )"); | |
| 30 | |
| 31 // type x and type y are the same. if type x is undefined or null, return true | |
| 32 | |
| 33 new TestCase( SECTION, "void 0 = void 0", true, void 0 == void 0 ); | |
| 34 new TestCase( SECTION, "null == null", true, null == null ); | |
| 35 | |
| 36 // if x is NaN, return false. if y is NaN, return false. | |
| 37 | |
| 38 new TestCase( SECTION, "NaN == NaN", false, Number.NaN == Number.NaN ); | |
| 39 new TestCase( SECTION, "NaN == 0", false, Number.NaN == 0 ); | |
| 40 new TestCase( SECTION, "0 == NaN", false, 0 == Number.NaN ); | |
| 41 new TestCase( SECTION, "NaN == Infinity", false, Number.NaN == Number.POSITIVE_INFINITY ); | |
| 42 new TestCase( SECTION, "Infinity == NaN", false, Number.POSITIVE_INFINITY == Number.NaN ); | |
| 43 | |
| 44 // if x is the same number value as y, return true. | |
| 45 | |
| 46 new TestCase( SECTION, "Number.MAX_VALUE == Number.MAX_VALUE", true, Number.MAX_VALUE == Number.MAX_VALUE ); | |
| 47 new TestCase( SECTION, "Number.MIN_VALUE == Number.MIN_VALUE", true, Number.MIN_VALUE == Number.MIN_VALUE ); | |
| 48 new TestCase( SECTION, "Number.POSITIVE_INFINITY == Number.POSITIVE_INFINITY", true, Number.POSITIVE_INFINITY == Number.POSITIVE_INFINITY ); | |
| 49 new TestCase( SECTION, "Number.NEGATIVE_INFINITY == Number.NEGATIVE_INFINITY", true, Number.NEGATIVE_INFINITY == Number.NEGATIVE_INFINITY ); | |
| 50 | |
| 51 // if xis 0 and y is -0, return true. if x is -0 and y is 0, return true. | |
| 52 | |
| 53 new TestCase( SECTION, "0 == 0", true, 0 == 0 ); | |
| 54 new TestCase( SECTION, "0 == -0", true, 0 == -0 ); | |
| 55 new TestCase( SECTION, "-0 == 0", true, -0 == 0 ); | |
| 56 new TestCase( SECTION, "-0 == -0", true, -0 == -0 ); | |
| 57 | |
| 58 // return false. | |
| 59 | |
| 60 new TestCase( SECTION, "0.9 == 1", false, 0.9 == 1 ); | |
| 61 new TestCase( SECTION, "0.999999 == 1", false, 0.999999 == 1 ); | |
| 62 new TestCase( SECTION, "0.9999999999 == 1", false, 0.9999999999 == 1 ); | |
| 63 new TestCase( SECTION, "0.9999999999999 == 1", false, 0.9999999999999 == 1 ); | |
| 64 | |
| 65 // type x and type y are the same type, but not numbers. | |
| 66 | |
| 67 | |
| 68 // x and y are strings. return true if x and y are exactly the same sequence of characters. | |
| 69 // otherwise, return false. | |
| 70 | |
| 71 new TestCase( SECTION, "'hello' == 'hello'", true, "hello" == "hello" ); | |
| 72 | |
| 73 // x and y are booleans. return true if both are true or both are false. | |
| 74 | |
| 75 new TestCase( SECTION, "true == true", true, true == true ); | |
| 76 new TestCase( SECTION, "false == false", true, false == false ); | |
| 77 new TestCase( SECTION, "true == false", false, true == false ); | |
| 78 new TestCase( SECTION, "false == true", false, false == true ); | |
| 79 | |
| 80 // return true if x and y refer to the same object. otherwise return false. | |
| 81 | |
| 82 new TestCase( SECTION, "new MyObject(true) == new MyObject(true)", false, new MyObject(true) == new MyObject(true) ); | |
| 83 new TestCase( SECTION, "new Boolean(true) == new Boolean(true)", false, new Boolean(true) == new Boolean(true) ); | |
| 84 new TestCase( SECTION, "new Boolean(false) == new Boolean(false)", false, new Boolean(false) == new Boolean(false) ); | |
| 85 | |
| 86 | |
| 87 new TestCase( SECTION, "x = new MyObject(true); y = x; z = x; z == y", true, eval("x = new MyObject(true); y = x; z = x; z == y") ); | |
| 88 new TestCase( SECTION, "x = new MyObject(false); y = x; z = x; z == y", true, eval("x = new MyObject(false); y = x; z = x; z == y") ); | |
| 89 new TestCase( SECTION, "x = new Boolean(true); y = x; z = x; z == y", true, eval("x = new Boolean(true); y = x; z = x; z == y") ); | |
| 90 new TestCase( SECTION, "x = new Boolean(false); y = x; z = x; z == y", true, eval("x = new Boolean(false); y = x; z = x; z == y") ); | |
| 91 | |
| 92 new TestCase( SECTION, "new Boolean(true) == new Boolean(true)", false, new Boolean(true) == new Boolean(true) ); | |
| 93 new TestCase( SECTION, "new Boolean(false) == new Boolean(false)", false, new Boolean(false) == new Boolean(false) ); | |
| 94 | |
| 95 // if x is null and y is undefined, return true. if x is undefined and y is null return true. | |
| 96 | |
| 97 new TestCase( SECTION, "null == void 0", true, null == void 0 ); | |
| 98 new TestCase( SECTION, "void 0 == null", true, void 0 == null ); | |
| 99 | |
| 100 // if type(x) is Number and type(y) is string, return the result of the comparison x == ToNumber(y). | |
| 101 | |
| 102 new TestCase( SECTION, "1 == '1'", true, 1 == '1' ); | |
| 103 new TestCase( SECTION, "255 == '0xff'", true, 255 == '0xff' ); | |
| 104 new TestCase( SECTION, "0 == '\r'", true, 0 == "\r" ); | |
| 105 new TestCase( SECTION, "1e19 == '1e19'", true, 1e19 == "1e19" ); | |
| 106 | |
| 107 | |
| 108 new TestCase( SECTION, "new Boolean(true) == true", true, true == new Boolean(true) ); | |
| 109 new TestCase( SECTION, "new MyObject(true) == true", true, true == new MyObject(true) ); | |
| 110 | |
| 111 new TestCase( SECTION, "new Boolean(false) == false", true, new Boolean(false) == false ); | |
| 112 new TestCase( SECTION, "new MyObject(false) == false", true, new MyObject(false) == false ); | |
| 113 | |
| 114 new TestCase( SECTION, "true == new Boolean(true)", true, true == new Boolean(true) ); | |
| 115 new TestCase( SECTION, "true == new MyObject(true)", true, true == new MyObject(true) ); | |
| 116 | |
| 117 new TestCase( SECTION, "false == new Boolean(false)", true, false == new Boolean(false) ); | |
| 118 new TestCase( SECTION, "false == new MyObject(false)", true, false == new MyObject(false) ); | |
| 119 | |
| 120 test(); | |
| 121 | |
| 122 function MyObject( value ) { | |
| 123 this.value = value; | |
| 124 this.valueOf = new Function( "return this.value" ); | |
| 125 } |
