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@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
50function 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}
63function 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
159function MyObject( value ) {
160    this.value = value;
161    this.valueOf = new Function( "return this.value" );
162}