1 /* The contents of this file are subject to the Netscape Public 2 * License Version 1.1 (the "License"); you may not use this file 3 * except in compliance with the License. You may obtain a copy of 4 * the License at http://www.mozilla.org/NPL/ 5 * 6 * Software distributed under the License is distributed on an "AS 7 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or 8 * implied. See the License for the specific language governing 9 * rights and limitations under the License. 10 * 11 * The Original Code is Mozilla Communicator client code, released March 12 * 31, 1998. 13 * 14 * The Initial Developer of the Original Code is Netscape Communications 15 * Corporation. Portions created by Netscape are 16 * Copyright (C) 1998 Netscape Communications Corporation. All 17 * Rights Reserved. 18 * 19 * Contributor(s): 20 * 21 */ 22 /** 23 File Name: 11.9.1.js 24 ECMA Section: 11.9.1 The equals operator ( == ) 25 Description: 26 27 The production EqualityExpression: 28 EqualityExpression == RelationalExpression is evaluated as follows: 29 30 1. Evaluate EqualityExpression. 31 2. Call GetValue(Result(1)). 32 3. Evaluate RelationalExpression. 33 4. Call GetValue(Result(3)). 34 5. Perform the comparison Result(4) == Result(2). (See section 11.9.3) 35 6. Return Result(5). 36 Author: christine (at) netscape.com 37 Date: 12 november 1997 38 */ 39 var SECTION = "11.9.1"; 40 var VERSION = "ECMA_1"; 41 startTest(); 42 var BUGNUMBER="77391"; 43 44 45 var testcases = getTestCases(); 46 47 writeHeaderToLog( SECTION + " The equals operator ( == )"); 48 test(); 49 50 function test() { 51 for ( tc=0; tc < testcases.length; tc++ ) { 52 testcases[tc].passed = writeTestCaseResult( 53 testcases[tc].expect, 54 testcases[tc].actual, 55 testcases[tc].description +" = "+ 56 testcases[tc].actual ); 57 58 testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; 59 } 60 stopTest(); 61 return ( testcases ); 62 } 63 function getTestCases() { 64 var array = new Array(); 65 var item = 0; 66 67 // type x and type y are the same. if type x is undefined or null, return true 68 69 array[item++] = new TestCase( SECTION, "void 0 = void 0", true, void 0 == void 0 ); 70 array[item++] = new TestCase( SECTION, "null == null", true, null == null ); 71 72 // if x is NaN, return false. if y is NaN, return false. 73 74 array[item++] = new TestCase( SECTION, "NaN == NaN", false, Number.NaN == Number.NaN ); 75 array[item++] = new TestCase( SECTION, "NaN == 0", false, Number.NaN == 0 ); 76 array[item++] = new TestCase( SECTION, "0 == NaN", false, 0 == Number.NaN ); 77 array[item++] = new TestCase( SECTION, "NaN == Infinity", false, Number.NaN == Number.POSITIVE_INFINITY ); 78 array[item++] = new TestCase( SECTION, "Infinity == NaN", false, Number.POSITIVE_INFINITY == Number.NaN ); 79 80 // if x is the same number value as y, return true. 81 82 array[item++] = new TestCase( SECTION, "Number.MAX_VALUE == Number.MAX_VALUE", true, Number.MAX_VALUE == Number.MAX_VALUE ); 83 array[item++] = new TestCase( SECTION, "Number.MIN_VALUE == Number.MIN_VALUE", true, Number.MIN_VALUE == Number.MIN_VALUE ); 84 array[item++] = new TestCase( SECTION, "Number.POSITIVE_INFINITY == Number.POSITIVE_INFINITY", true, Number.POSITIVE_INFINITY == Number.POSITIVE_INFINITY ); 85 array[item++] = new TestCase( SECTION, "Number.NEGATIVE_INFINITY == Number.NEGATIVE_INFINITY", true, Number.NEGATIVE_INFINITY == Number.NEGATIVE_INFINITY ); 86 87 // if xis 0 and y is -0, return true. if x is -0 and y is 0, return true. 88 89 array[item++] = new TestCase( SECTION, "0 == 0", true, 0 == 0 ); 90 array[item++] = new TestCase( SECTION, "0 == -0", true, 0 == -0 ); 91 array[item++] = new TestCase( SECTION, "-0 == 0", true, -0 == 0 ); 92 array[item++] = new TestCase( SECTION, "-0 == -0", true, -0 == -0 ); 93 94 // return false. 95 96 array[item++] = new TestCase( SECTION, "0.9 == 1", false, 0.9 == 1 ); 97 array[item++] = new TestCase( SECTION, "0.999999 == 1", false, 0.999999 == 1 ); 98 array[item++] = new TestCase( SECTION, "0.9999999999 == 1", false, 0.9999999999 == 1 ); 99 array[item++] = new TestCase( SECTION, "0.9999999999999 == 1", false, 0.9999999999999 == 1 ); 100 101 // type x and type y are the same type, but not numbers. 102 103 104 // x and y are strings. return true if x and y are exactly the same sequence of characters. 105 // otherwise, return false. 106 107 array[item++] = new TestCase( SECTION, "'hello' == 'hello'", true, "hello" == "hello" ); 108 109 // x and y are booleans. return true if both are true or both are false. 110 111 array[item++] = new TestCase( SECTION, "true == true", true, true == true ); 112 array[item++] = new TestCase( SECTION, "false == false", true, false == false ); 113 array[item++] = new TestCase( SECTION, "true == false", false, true == false ); 114 array[item++] = new TestCase( SECTION, "false == true", false, false == true ); 115 116 // return true if x and y refer to the same object. otherwise return false. 117 118 array[item++] = new TestCase( SECTION, "new MyObject(true) == new MyObject(true)", false, new MyObject(true) == new MyObject(true) ); 119 array[item++] = new TestCase( SECTION, "new Boolean(true) == new Boolean(true)", false, new Boolean(true) == new Boolean(true) ); 120 array[item++] = new TestCase( SECTION, "new Boolean(false) == new Boolean(false)", false, new Boolean(false) == new Boolean(false) ); 121 122 123 array[item++] = 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") ); 124 array[item++] = 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") ); 125 array[item++] = 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") ); 126 array[item++] = 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") ); 127 128 array[item++] = new TestCase( SECTION, "new Boolean(true) == new Boolean(true)", false, new Boolean(true) == new Boolean(true) ); 129 array[item++] = new TestCase( SECTION, "new Boolean(false) == new Boolean(false)", false, new Boolean(false) == new Boolean(false) ); 130 131 // if x is null and y is undefined, return true. if x is undefined and y is null return true. 132 133 array[item++] = new TestCase( SECTION, "null == void 0", true, null == void 0 ); 134 array[item++] = new TestCase( SECTION, "void 0 == null", true, void 0 == null ); 135 136 // if type(x) is Number and type(y) is string, return the result of the comparison x == ToNumber(y). 137 138 array[item++] = new TestCase( SECTION, "1 == '1'", true, 1 == '1' ); 139 array[item++] = new TestCase( SECTION, "255 == '0xff'", true, 255 == '0xff' ); 140 array[item++] = new TestCase( SECTION, "0 == '\r'", true, 0 == "\r" ); 141 array[item++] = new TestCase( SECTION, "1e19 == '1e19'", true, 1e19 == "1e19" ); 142 143 144 array[item++] = new TestCase( SECTION, "new Boolean(true) == true", true, true == new Boolean(true) ); 145 array[item++] = new TestCase( SECTION, "new MyObject(true) == true", true, true == new MyObject(true) ); 146 147 array[item++] = new TestCase( SECTION, "new Boolean(false) == false", true, new Boolean(false) == false ); 148 array[item++] = new TestCase( SECTION, "new MyObject(false) == false", true, new MyObject(false) == false ); 149 150 array[item++] = new TestCase( SECTION, "true == new Boolean(true)", true, true == new Boolean(true) ); 151 array[item++] = new TestCase( SECTION, "true == new MyObject(true)", true, true == new MyObject(true) ); 152 153 array[item++] = new TestCase( SECTION, "false == new Boolean(false)", true, false == new Boolean(false) ); 154 array[item++] = new TestCase( SECTION, "false == new MyObject(false)", true, false == new MyObject(false) ); 155 156 return ( array ); 157 } 158 159 function MyObject( value ) { 160 this.value = value; 161 this.valueOf = new Function( "return this.value" ); 162 }
