tests/mozilla/ecma/Expressions/11.4.5.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:          11.4.5.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
  47 function 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 }
  60 function 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 }