tests/mozilla/ecma/Expressions/11.3.2.js

   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:          11.3.2.js
  24     ECMA Section:       11.3.2 Postfix decrement operator
  25     Description:
  26
  27     11.3.2 Postfix decrement operator
  28
  29     The production MemberExpression : MemberExpression -- is evaluated as follows:
  30     1.  Evaluate MemberExpression.
  31     2.  Call GetValue(Result(1)).
  32     3.  Call ToNumber(Result(2)).
  33     4.  Subtract the value 1 from Result(3), using the same rules as for the -
  34         operator (section 0).
  35     5.  Call PutValue(Result(1), Result(4)).
  36     6.  Return Result(3).
  37
  38     Author:             christine@netscape.com
  39     Date:               12 november 1997
  40 */
  41     var SECTION = "11.3.2";
  42     var VERSION = "ECMA_1";
  43     startTest();
  44     var testcases = getTestCases();
  45
  46     writeHeaderToLog( SECTION + " Postfix decrement 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     // special numbers
  67     array[item++] = new TestCase( SECTION,  "var MYVAR; MYVAR--",                       NaN,                            eval("var MYVAR; MYVAR--") );
  68     array[item++] = new TestCase( SECTION,  "var MYVAR= void 0; MYVAR--",               NaN,                            eval("var MYVAR=void 0; MYVAR--") );
  69     array[item++] = new TestCase( SECTION,  "var MYVAR=null; MYVAR--",                  0,                            eval("var MYVAR=null; MYVAR--") );
  70     array[item++] = new TestCase( SECTION,  "var MYVAR=true; MYVAR--",                  1,                            eval("var MYVAR=true; MYVAR--") );
  71     array[item++] = new TestCase( SECTION,  "var MYVAR=false; MYVAR--",                 0,                            eval("var MYVAR=false; MYVAR--") );
  72
  73     // verify return value
  74
  75     array[item++] = new TestCase( SECTION,    "var MYVAR=Number.POSITIVE_INFINITY;MYVAR--", Number.POSITIVE_INFINITY,   eval("var MYVAR=Number.POSITIVE_INFINITY;MYVAR--") );
  76     array[item++] = new TestCase( SECTION,    "var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--", Number.NEGATIVE_INFINITY,   eval("var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--") );
  77     array[item++] = new TestCase( SECTION,    "var MYVAR=Number.NaN;MYVAR--",               Number.NaN,                 eval("var MYVAR=Number.NaN;MYVAR--") );
  78
  79     // verify value of variable
  80
  81     array[item++] = new TestCase( SECTION,    "var MYVAR=Number.POSITIVE_INFINITY;MYVAR--;MYVAR", Number.POSITIVE_INFINITY,   eval("var MYVAR=Number.POSITIVE_INFINITY;MYVAR--;MYVAR") );
  82     array[item++] = new TestCase( SECTION,    "var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--;MYVAR", Number.NEGATIVE_INFINITY,   eval("var MYVAR=Number.NEGATIVE_INFINITY;MYVAR--;MYVAR") );
  83     array[item++] = new TestCase( SECTION,    "var MYVAR=Number.NaN;MYVAR--;MYVAR",               Number.NaN,                 eval("var MYVAR=Number.NaN;MYVAR--;MYVAR") );
  84
  85     // number primitives
  86     array[item++] = new TestCase( SECTION,    "var MYVAR=0;MYVAR--",            0,          eval("var MYVAR=0;MYVAR--") );
  87     array[item++] = new TestCase( SECTION,    "var MYVAR=0.2345;MYVAR--",       0.2345,     eval("var MYVAR=0.2345;MYVAR--") );
  88     array[item++] = new TestCase( SECTION,    "var MYVAR=-0.2345;MYVAR--",      -0.2345,    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--",         1,       eval("var MYVAR=true;MYVAR--") );
 103     array[item++] = new TestCase( SECTION,    "var MYVAR=false;MYVAR--",        0,      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--",         1,     eval("var MYVAR=true;MYVAR--") );
 113     array[item++] = new TestCase( SECTION,    "var MYVAR=new Boolean(false);MYVAR--",        0,     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--",          12345,          eval("var MYVAR='12345';MYVAR--") );
 122     array[item++] = new TestCase( SECTION,    "var MYVAR='-12345';MYVAR--",         -12345,         eval("var MYVAR='-12345';MYVAR--") );
 123     array[item++] = new TestCase( SECTION,    "var MYVAR='0Xf';MYVAR--",            15,             eval("var MYVAR='0Xf';MYVAR--") );
 124     array[item++] = new TestCase( SECTION,    "var MYVAR='077';MYVAR--",            77,             eval("var MYVAR='077';MYVAR--") );
 125     array[item++] = new TestCase( SECTION,    "var MYVAR=''; MYVAR--",              0,              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--",          12345,          eval("var MYVAR=new String('12345');MYVAR--") );
 139     array[item++] = new TestCase( SECTION,    "var MYVAR=new String('-12345');MYVAR--",         -12345,         eval("var MYVAR=new String('-12345');MYVAR--") );
 140     array[item++] = new TestCase( SECTION,    "var MYVAR=new String('0Xf');MYVAR--",            15,             eval("var MYVAR=new String('0Xf');MYVAR--") );
 141     array[item++] = new TestCase( SECTION,    "var MYVAR=new String('077');MYVAR--",            77,             eval("var MYVAR=new String('077');MYVAR--") );
 142     array[item++] = new TestCase( SECTION,    "var MYVAR=new String(''); MYVAR--",              0,              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 }