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:          11.4.5.js
24    ECMA Section:       11.4.5 Prefix decrement operator
25    Description:
26
27    The production UnaryExpression : -- UnaryExpression is evaluated as follows:
28
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)).
34
35     1.Return Result(4).
36    Author:             christine@netscape.com
37    Date:               12 november 1997
38*/
39    var SECTION = "11.4.5";
40    var VERSION = "ECMA_1";
41    startTest();
42    var testcases = getTestCases();
43
44    writeHeaderToLog( SECTION + " Prefix decrement operator");
45    test();
46
47function test() {
48    for ( tc=0; tc < testcases.length; tc++ ) {
49        testcases[tc].passed = writeTestCaseResult(
50                            testcases[tc].expect,
51                            testcases[tc].actual,
52                            testcases[tc].description +" = "+
53                            testcases[tc].actual );
54
55        testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
56    }
57    stopTest();
58    return ( testcases );
59}
60function getTestCases() {
61    var array = new Array();
62    var item = 0;
63
64    //
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") );
70
71    // special numbers
72    // verify return value
73
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") );
77
78    // verify value of variable
79
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") );
83
84
85    // number primitives
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") );
89
90    // verify value of variable
91
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") );
98
99    // boolean values
100    // verify return value
101
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
105
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") );
108
109    // boolean objects
110    // verify return value
111
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
115
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") );
118
119    // string primitives
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") );
126
127    // verify value of variable
128
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") );
135
136    // string objects
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") );
143
144    // verify value of variable
145
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") );
152
153    return ( array );
154}
155