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/
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.
11 * The Original Code is Mozilla Communicator client code, released March
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
24 ECMA Section: 11.4.5 Prefix decrement operator
27 The production UnaryExpression : -- UnaryExpression is evaluated as follows:
29 1.Evaluate UnaryExpression.
30 2.Call GetValue(Result(1)).
31 3.Call ToNumber(Result(2)).
32 4.Subtract the value 1 from Result(3), using the same rules as for the - operator (section 11.6.3).
33 5.Call PutValue(Result(1), Result(4)).
36 Author: christine@netscape.com
37 Date: 12 november 1997
39 var SECTION = "11.4.5";
40 var VERSION = "ECMA_1";
42 var testcases = getTestCases();
44 writeHeaderToLog( SECTION + " Prefix decrement operator");
48 for ( tc=0; tc < testcases.length; tc++ ) {
49 testcases[tc].passed = writeTestCaseResult(
52 testcases[tc].description +" = "+
53 testcases[tc].actual );
55 testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
60 function getTestCases() {
61 var array = new Array();
65 array[item++] = new TestCase( SECTION, "var MYVAR; --MYVAR", NaN, eval("var MYVAR; --MYVAR") );
66 array[item++] = new TestCase( SECTION, "var MYVAR= void 0; --MYVAR", NaN, eval("var MYVAR=void 0; --MYVAR") );
67 array[item++] = new TestCase( SECTION, "var MYVAR=null; --MYVAR", -1, eval("var MYVAR=null; --MYVAR") );
68 array[item++] = new TestCase( SECTION, "var MYVAR=true; --MYVAR", 0, eval("var MYVAR=true; --MYVAR") );
69 array[item++] = new TestCase( SECTION, "var MYVAR=false; --MYVAR", -1, eval("var MYVAR=false; --MYVAR") );
72 // verify return value
74 array[item++] = new TestCase( SECTION, "var MYVAR=Number.POSITIVE_INFINITY;--MYVAR", Number.POSITIVE_INFINITY, eval("var MYVAR=Number.POSITIVE_INFINITY;--MYVAR") );
75 array[item++] = new TestCase( SECTION, "var MYVAR=Number.NEGATIVE_INFINITY;--MYVAR", Number.NEGATIVE_INFINITY, eval("var MYVAR=Number.NEGATIVE_INFINITY;--MYVAR") );
76 array[item++] = new TestCase( SECTION, "var MYVAR=Number.NaN;--MYVAR", Number.NaN, eval("var MYVAR=Number.NaN;--MYVAR") );
78 // verify value of variable
80 array[item++] = new TestCase( SECTION, "var MYVAR=Number.POSITIVE_INFINITY;--MYVAR;MYVAR", Number.POSITIVE_INFINITY, eval("var MYVAR=Number.POSITIVE_INFINITY;--MYVAR;MYVAR") );
81 array[item++] = new TestCase( SECTION, "var MYVAR=Number.NEGATIVE_INFINITY;--MYVAR;MYVAR", Number.NEGATIVE_INFINITY, eval("var MYVAR=Number.NEGATIVE_INFINITY;--MYVAR;MYVAR") );
82 array[item++] = new TestCase( SECTION, "var MYVAR=Number.NaN;--MYVAR;MYVAR", Number.NaN, eval("var MYVAR=Number.NaN;--MYVAR;MYVAR") );
86 array[item++] = new TestCase( SECTION, "var MYVAR=0;--MYVAR", -1, eval("var MYVAR=0;--MYVAR") );
87 array[item++] = new TestCase( SECTION, "var MYVAR=0.2345;--MYVAR", -0.7655, eval("var MYVAR=0.2345;--MYVAR") );
88 array[item++] = new TestCase( SECTION, "var MYVAR=-0.2345;--MYVAR", -1.2345, eval("var MYVAR=-0.2345;--MYVAR") );
90 // verify value of variable
92 array[item++] = new TestCase( SECTION, "var MYVAR=0;--MYVAR;MYVAR", -1, eval("var MYVAR=0;--MYVAR;MYVAR") );
93 array[item++] = new TestCase( SECTION, "var MYVAR=0.2345;--MYVAR;MYVAR", -0.7655, eval("var MYVAR=0.2345;--MYVAR;MYVAR") );
94 array[item++] = new TestCase( SECTION, "var MYVAR=-0.2345;--MYVAR;MYVAR", -1.2345, eval("var MYVAR=-0.2345;--MYVAR;MYVAR") );
95 array[item++] = new TestCase( SECTION, "var MYVAR=0;--MYVAR;MYVAR", -1, eval("var MYVAR=0;--MYVAR;MYVAR") );
96 array[item++] = new TestCase( SECTION, "var MYVAR=0;--MYVAR;MYVAR", -1, eval("var MYVAR=0;--MYVAR;MYVAR") );
97 array[item++] = new TestCase( SECTION, "var MYVAR=0;--MYVAR;MYVAR", -1, eval("var MYVAR=0;--MYVAR;MYVAR") );
100 // verify return value
102 array[item++] = new TestCase( SECTION, "var MYVAR=true;--MYVAR", 0, eval("var MYVAR=true;--MYVAR") );
103 array[item++] = new TestCase( SECTION, "var MYVAR=false;--MYVAR", -1, eval("var MYVAR=false;--MYVAR") );
104 // verify value of variable
106 array[item++] = new TestCase( SECTION, "var MYVAR=true;--MYVAR;MYVAR", 0, eval("var MYVAR=true;--MYVAR;MYVAR") );
107 array[item++] = new TestCase( SECTION, "var MYVAR=false;--MYVAR;MYVAR", -1, eval("var MYVAR=false;--MYVAR;MYVAR") );
110 // verify return value
112 array[item++] = new TestCase( SECTION, "var MYVAR=new Boolean(true);--MYVAR", 0, eval("var MYVAR=true;--MYVAR") );
113 array[item++] = new TestCase( SECTION, "var MYVAR=new Boolean(false);--MYVAR", -1, eval("var MYVAR=false;--MYVAR") );
114 // verify value of variable
116 array[item++] = new TestCase( SECTION, "var MYVAR=new Boolean(true);--MYVAR;MYVAR", 0, eval("var MYVAR=new Boolean(true);--MYVAR;MYVAR") );
117 array[item++] = new TestCase( SECTION, "var MYVAR=new Boolean(false);--MYVAR;MYVAR", -1, eval("var MYVAR=new Boolean(false);--MYVAR;MYVAR") );
120 array[item++] = new TestCase( SECTION, "var MYVAR='string';--MYVAR", Number.NaN, eval("var MYVAR='string';--MYVAR") );
121 array[item++] = new TestCase( SECTION, "var MYVAR='12345';--MYVAR", 12344, eval("var MYVAR='12345';--MYVAR") );
122 array[item++] = new TestCase( SECTION, "var MYVAR='-12345';--MYVAR", -12346, eval("var MYVAR='-12345';--MYVAR") );
123 array[item++] = new TestCase( SECTION, "var MYVAR='0Xf';--MYVAR", 14, eval("var MYVAR='0Xf';--MYVAR") );
124 array[item++] = new TestCase( SECTION, "var MYVAR='077';--MYVAR", 76, eval("var MYVAR='077';--MYVAR") );
125 array[item++] = new TestCase( SECTION, "var MYVAR=''; --MYVAR", -1, eval("var MYVAR='';--MYVAR") );
127 // verify value of variable
129 array[item++] = new TestCase( SECTION, "var MYVAR='string';--MYVAR;MYVAR", Number.NaN, eval("var MYVAR='string';--MYVAR;MYVAR") );
130 array[item++] = new TestCase( SECTION, "var MYVAR='12345';--MYVAR;MYVAR", 12344, eval("var MYVAR='12345';--MYVAR;MYVAR") );
131 array[item++] = new TestCase( SECTION, "var MYVAR='-12345';--MYVAR;MYVAR", -12346, eval("var MYVAR='-12345';--MYVAR;MYVAR") );
132 array[item++] = new TestCase( SECTION, "var MYVAR='0xf';--MYVAR;MYVAR", 14, eval("var MYVAR='0xf';--MYVAR;MYVAR") );
133 array[item++] = new TestCase( SECTION, "var MYVAR='077';--MYVAR;MYVAR", 76, eval("var MYVAR='077';--MYVAR;MYVAR") );
134 array[item++] = new TestCase( SECTION, "var MYVAR='';--MYVAR;MYVAR", -1, eval("var MYVAR='';--MYVAR;MYVAR") );
137 array[item++] = new TestCase( SECTION, "var MYVAR=new String('string');--MYVAR", Number.NaN, eval("var MYVAR=new String('string');--MYVAR") );
138 array[item++] = new TestCase( SECTION, "var MYVAR=new String('12345');--MYVAR", 12344, eval("var MYVAR=new String('12345');--MYVAR") );
139 array[item++] = new TestCase( SECTION, "var MYVAR=new String('-12345');--MYVAR", -12346, eval("var MYVAR=new String('-12345');--MYVAR") );
140 array[item++] = new TestCase( SECTION, "var MYVAR=new String('0Xf');--MYVAR", 14, eval("var MYVAR=new String('0Xf');--MYVAR") );
141 array[item++] = new TestCase( SECTION, "var MYVAR=new String('077');--MYVAR", 76, eval("var MYVAR=new String('077');--MYVAR") );
142 array[item++] = new TestCase( SECTION, "var MYVAR=new String(''); --MYVAR", -1, eval("var MYVAR=new String('');--MYVAR") );
144 // verify value of variable
146 array[item++] = new TestCase( SECTION, "var MYVAR=new String('string');--MYVAR;MYVAR", Number.NaN, eval("var MYVAR=new String('string');--MYVAR;MYVAR") );
147 array[item++] = new TestCase( SECTION, "var MYVAR=new String('12345');--MYVAR;MYVAR", 12344, eval("var MYVAR=new String('12345');--MYVAR;MYVAR") );
148 array[item++] = new TestCase( SECTION, "var MYVAR=new String('-12345');--MYVAR;MYVAR", -12346, eval("var MYVAR=new String('-12345');--MYVAR;MYVAR") );
149 array[item++] = new TestCase( SECTION, "var MYVAR=new String('0xf');--MYVAR;MYVAR", 14, eval("var MYVAR=new String('0xf');--MYVAR;MYVAR") );
150 array[item++] = new TestCase( SECTION, "var MYVAR=new String('077');--MYVAR;MYVAR", 76, eval("var MYVAR=new String('077');--MYVAR;MYVAR") );
151 array[item++] = new TestCase( SECTION, "var MYVAR=new String('');--MYVAR;MYVAR", -1, eval("var MYVAR=new String('');--MYVAR;MYVAR") );