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:          11.9.2.js
24    ECMA Section:       11.9.2 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 = "11.9.2";
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
49function 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}
62function 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",        false,   void 0 != void 0 );
69    array[item++] = new TestCase( SECTION,    "null == null",           false,   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",             true,  Number.NaN != Number.NaN );
74    array[item++] = new TestCase( SECTION,    "NaN != 0",               true,  Number.NaN != 0 );
75    array[item++] = new TestCase( SECTION,    "0 != NaN",               true,  0 != Number.NaN );
76    array[item++] = new TestCase( SECTION,    "NaN != Infinity",        true,  Number.NaN != Number.POSITIVE_INFINITY );
77    array[item++] = new TestCase( SECTION,    "Infinity != NaN",        true,  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",   false,   Number.MAX_VALUE != Number.MAX_VALUE );
82    array[item++] = new TestCase( SECTION,    "Number.MIN_VALUE != Number.MIN_VALUE",   false,   Number.MIN_VALUE != Number.MIN_VALUE );
83    array[item++] = new TestCase( SECTION,    "Number.POSITIVE_INFINITY != Number.POSITIVE_INFINITY",   false,   Number.POSITIVE_INFINITY != Number.POSITIVE_INFINITY );
84    array[item++] = new TestCase( SECTION,    "Number.NEGATIVE_INFINITY != Number.NEGATIVE_INFINITY",   false,   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",                 false,   0 != 0 );
89    array[item++] = new TestCase( SECTION,    "0 != -0",                false,   0 != -0 );
90    array[item++] = new TestCase( SECTION,    "-0 != 0",                false,   -0 != 0 );
91    array[item++] = new TestCase( SECTION,    "-0 != -0",               false,   -0 != -0 );
92
93    // return false.
94
95    array[item++] = new TestCase( SECTION,    "0.9 != 1",               true,  0.9 != 1 );
96    array[item++] = new TestCase( SECTION,    "0.999999 != 1",          true,  0.999999 != 1 );
97    array[item++] = new TestCase( SECTION,    "0.9999999999 != 1",      true,  0.9999999999 != 1 );
98    array[item++] = new TestCase( SECTION,    "0.9999999999999 != 1",   true,  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'",         false,   "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",               false,   true != true );
111    array[item++] = new TestCase( SECTION,    "false != false",             false,   false != false );
112    array[item++] = new TestCase( SECTION,    "true != false",              true,  true != false );
113    array[item++] = new TestCase( SECTION,    "false != true",              true,  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)",   true,  new MyObject(true) != new MyObject(true) );
118    array[item++] = new TestCase( SECTION,    "new Boolean(true) != new Boolean(true)",     true,  new Boolean(true) != new Boolean(true) );
119    array[item++] = new TestCase( SECTION,    "new Boolean(false) != new Boolean(false)",   true,  new Boolean(false) != new Boolean(false) );
120
121
122    array[item++] = new TestCase( SECTION,    "x = new MyObject(true); y = x; z = x; z != y",   false,  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",  false,  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",   false,  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",   false,  eval("x = new Boolean(false); y = x; z = x; z != y") );
126
127    array[item++] = new TestCase( SECTION,    "new Boolean(true) != new Boolean(true)",     true,  new Boolean(true) != new Boolean(true) );
128    array[item++] = new TestCase( SECTION,    "new Boolean(false) != new Boolean(false)",   true,  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",             false,   null != void 0 );
133    array[item++] = new TestCase( SECTION,    "void 0 != null",             false,   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'",                   false,   1 != '1' );
138    array[item++] = new TestCase( SECTION,    "255 != '0xff'",               false,  255 != '0xff' );
139    array[item++] = new TestCase( SECTION,    "0 != '\r'",                  false,   0 != "\r" );
140    array[item++] = new TestCase( SECTION,    "1e19 != '1e19'",             false,   1e19 != "1e19" );
141
142
143    array[item++] = new TestCase( SECTION,    "new Boolean(true) != true",  false,   true != new Boolean(true) );
144    array[item++] = new TestCase( SECTION,    "new MyObject(true) != true", false,   true != new MyObject(true) );
145
146    array[item++] = new TestCase( SECTION,    "new Boolean(false) != false",    false,   new Boolean(false) != false );
147    array[item++] = new TestCase( SECTION,    "new MyObject(false) != false",   false,   new MyObject(false) != false );
148
149    array[item++] = new TestCase( SECTION,    "true != new Boolean(true)",      false,   true != new Boolean(true) );
150    array[item++] = new TestCase( SECTION,    "true != new MyObject(true)",     false,   true != new MyObject(true) );
151
152    array[item++] = new TestCase( SECTION,    "false != new Boolean(false)",    false,   false != new Boolean(false) );
153    array[item++] = new TestCase( SECTION,    "false != new MyObject(false)",   false,   false != new MyObject(false) );
154
155    return ( array );
156}
157
158function MyObject( value ) {
159    this.value = value;
160    this.valueOf = new Function( "return this.value" );
161}