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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: 11.9.3.js | |
24 | ECMA Section: 11.9.3 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@netscape.com | |
37 | Date: 12 november 1997 | |
38 | */ | |
39 | var SECTION = "11.9.3"; | |
40 | var VERSION = "ECMA_1"; | |
41 | startTest(); | |
42 | var BUGNUMBER="77391"; | |
43 | ||
44 | var testcases = getTestCases(); | |
45 | ||
46 | writeHeaderToLog( SECTION + " The equals operator ( == )"); | |
47 | test(); | |
48 | ||
49 | function test() { | |
50 | for ( tc=0; tc < testcases.length; tc++ ) { | |
51 | testcases[tc].passed = writeTestCaseResult( | |
52 | testcases[tc].expect, | |
53 | testcases[tc].actual, | |
54 | testcases[tc].description +" = "+ | |
55 | testcases[tc].actual ); | |
56 | ||
57 | testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; | |
58 | } | |
59 | stopTest(); | |
60 | return ( testcases ); | |
61 | } | |
62 | function getTestCases() { | |
63 | var array = new Array(); | |
64 | var item = 0; | |
65 | ||
66 | // type x and type y are the same. if type x is undefined or null, return true | |
67 | ||
68 | array[item++] = new TestCase( SECTION, "void 0 = void 0", true, void 0 == void 0 ); | |
69 | array[item++] = new TestCase( SECTION, "null == null", true, null == null ); | |
70 | ||
71 | // if x is NaN, return false. if y is NaN, return false. | |
72 | ||
73 | array[item++] = new TestCase( SECTION, "NaN == NaN", false, Number.NaN == Number.NaN ); | |
74 | array[item++] = new TestCase( SECTION, "NaN == 0", false, Number.NaN == 0 ); | |
75 | array[item++] = new TestCase( SECTION, "0 == NaN", false, 0 == Number.NaN ); | |
76 | array[item++] = new TestCase( SECTION, "NaN == Infinity", false, Number.NaN == Number.POSITIVE_INFINITY ); | |
77 | array[item++] = new TestCase( SECTION, "Infinity == NaN", false, Number.POSITIVE_INFINITY == Number.NaN ); | |
78 | ||
79 | // if x is the same number value as y, return true. | |
80 | ||
81 | array[item++] = new TestCase( SECTION, "Number.MAX_VALUE == Number.MAX_VALUE", true, Number.MAX_VALUE == Number.MAX_VALUE ); | |
82 | array[item++] = new TestCase( SECTION, "Number.MIN_VALUE == Number.MIN_VALUE", true, Number.MIN_VALUE == Number.MIN_VALUE ); | |
83 | array[item++] = new TestCase( SECTION, "Number.POSITIVE_INFINITY == Number.POSITIVE_INFINITY", true, Number.POSITIVE_INFINITY == Number.POSITIVE_INFINITY ); | |
84 | array[item++] = new TestCase( SECTION, "Number.NEGATIVE_INFINITY == Number.NEGATIVE_INFINITY", true, Number.NEGATIVE_INFINITY == Number.NEGATIVE_INFINITY ); | |
85 | ||
86 | // if xis 0 and y is -0, return true. if x is -0 and y is 0, return true. | |
87 | ||
88 | array[item++] = new TestCase( SECTION, "0 == 0", true, 0 == 0 ); | |
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 | ||
93 | // return false. | |
94 | ||
95 | array[item++] = new TestCase( SECTION, "0.9 == 1", false, 0.9 == 1 ); | |
96 | array[item++] = new TestCase( SECTION, "0.999999 == 1", false, 0.999999 == 1 ); | |
97 | array[item++] = new TestCase( SECTION, "0.9999999999 == 1", false, 0.9999999999 == 1 ); | |
98 | array[item++] = new TestCase( SECTION, "0.9999999999999 == 1", false, 0.9999999999999 == 1 ); | |
99 | ||
100 | // type x and type y are the same type, but not numbers. | |
101 | ||
102 | ||
103 | // x and y are strings. return true if x and y are exactly the same sequence of characters. | |
104 | // otherwise, return false. | |
105 | ||
106 | array[item++] = new TestCase( SECTION, "'hello' == 'hello'", true, "hello" == "hello" ); | |
107 | ||
108 | // x and y are booleans. return true if both are true or both are false. | |
109 | ||
110 | array[item++] = new TestCase( SECTION, "true == true", true, true == true ); | |
111 | array[item++] = new TestCase( SECTION, "false == false", true, false == false ); | |
112 | array[item++] = new TestCase( SECTION, "true == false", false, true == false ); | |
113 | array[item++] = new TestCase( SECTION, "false == true", false, false == true ); | |
114 | ||
115 | // return true if x and y refer to the same object. otherwise return false. | |
116 | ||
117 | array[item++] = new TestCase( SECTION, "new MyObject(true) == new MyObject(true)", false, new MyObject(true) == new MyObject(true) ); | |
118 | array[item++] = new TestCase( SECTION, "new Boolean(true) == new Boolean(true)", false, new Boolean(true) == new Boolean(true) ); | |
119 | array[item++] = new TestCase( SECTION, "new Boolean(false) == new Boolean(false)", false, new Boolean(false) == new Boolean(false) ); | |
120 | ||
121 | ||
122 | 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") ); | |
123 | 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") ); | |
124 | 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") ); | |
125 | 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") ); | |
126 | ||
127 | array[item++] = new TestCase( SECTION, "new Boolean(true) == new Boolean(true)", false, new Boolean(true) == new Boolean(true) ); | |
128 | array[item++] = new TestCase( SECTION, "new Boolean(false) == new Boolean(false)", false, new Boolean(false) == new Boolean(false) ); | |
129 | ||
130 | // if x is null and y is undefined, return true. if x is undefined and y is null return true. | |
131 | ||
132 | array[item++] = new TestCase( SECTION, "null == void 0", true, null == void 0 ); | |
133 | array[item++] = new TestCase( SECTION, "void 0 == null", true, void 0 == null ); | |
134 | ||
135 | // if type(x) is Number and type(y) is string, return the result of the comparison x == ToNumber(y). | |
136 | ||
137 | array[item++] = new TestCase( SECTION, "1 == '1'", true, 1 == '1' ); | |
138 | array[item++] = new TestCase( SECTION, "255 == '0xff'", true, 255 == '0xff' ); | |
139 | array[item++] = new TestCase( SECTION, "0 == '\r'", true, 0 == "\r" ); | |
140 | array[item++] = new TestCase( SECTION, "1e19 == '1e19'", true, 1e19 == "1e19" ); | |
141 | ||
142 | ||
143 | array[item++] = new TestCase( SECTION, "new Boolean(true) == true", true, true == new Boolean(true) ); | |
144 | array[item++] = new TestCase( SECTION, "new MyObject(true) == true", true, true == new MyObject(true) ); | |
145 | ||
146 | array[item++] = new TestCase( SECTION, "new Boolean(false) == false", true, new Boolean(false) == false ); | |
147 | array[item++] = new TestCase( SECTION, "new MyObject(false) == false", true, new MyObject(false) == false ); | |
148 | ||
149 | array[item++] = new TestCase( SECTION, "true == new Boolean(true)", true, true == new Boolean(true) ); | |
150 | array[item++] = new TestCase( SECTION, "true == new MyObject(true)", true, true == new MyObject(true) ); | |
151 | ||
152 | array[item++] = new TestCase( SECTION, "false == new Boolean(false)", true, false == new Boolean(false) ); | |
153 | array[item++] = new TestCase( SECTION, "false == new MyObject(false)", true, false == new MyObject(false) ); | |
154 | ||
155 | return ( array ); | |
156 | } | |
157 | ||
158 | function MyObject( value ) { | |
159 | this.value = value; | |
160 | this.valueOf = new Function( "return this.value" ); | |
161 | } |