tests/mozilla/ecma/Expressions/11.6.2-1.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:          11.6.2-1.js
  24     ECMA Section:       11.6.2 The Subtraction operator ( - )
  25     Description:
  26
  27     The production AdditiveExpression : AdditiveExpression -
  28     MultiplicativeExpression is evaluated as follows:
  29
  30     1.  Evaluate AdditiveExpression.
  31     2.  Call GetValue(Result(1)).
  32     3.  Evaluate MultiplicativeExpression.
  33     4.  Call GetValue(Result(3)).
  34     5.  Call ToNumber(Result(2)).
  35     6.  Call ToNumber(Result(4)).
  36     7.  Apply the subtraction operation to Result(5) and Result(6). See the
  37         discussion below (11.6.3).
  38     8.  Return Result(7).
  39
  40     Author:             christine@netscape.com
  41     Date:               12 november 1997
  42 */
  43     var SECTION = "11.6.2-1";
  44     var VERSION = "ECMA_1";
  45     startTest();
  46     var testcases = getTestCases();
  47
  48     writeHeaderToLog( SECTION + " The subtraction operator ( - )");
  49     test();
  50
  51 function test() {
  52     for ( tc=0; tc < testcases.length; tc++ ) {
  53         testcases[tc].passed = writeTestCaseResult(
  54                             testcases[tc].expect,
  55                             testcases[tc].actual,
  56                             testcases[tc].description +" = "+
  57                             testcases[tc].actual );
  58
  59         testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
  60     }
  61     stopTest();
  62     return ( testcases );
  63 }
  64 function getTestCases() {
  65     var array = new Array();
  66     var item = 0;
  67
  68     // tests for boolean primitive, boolean object, Object object, a "MyObject" whose value is
  69     // a boolean primitive and a boolean object, and "MyValuelessObject", where the value is
  70     // set in the object's prototype, not the object itself.
  71
  72     array[item++] = new TestCase(   SECTION,
  73                                     "var EXP_1 = true; var EXP_2 = false; EXP_1 - EXP_2",
  74                                     1,
  75                                     eval("var EXP_1 = true; var EXP_2 = false; EXP_1 - EXP_2") );
  76
  77     array[item++] = new TestCase(   SECTION,
  78                                     "var EXP_1 = new Boolean(true); var EXP_2 = new Boolean(false); EXP_1 - EXP_2",
  79                                     1,
  80                                     eval("var EXP_1 = new Boolean(true); var EXP_2 = new Boolean(false); EXP_1 - EXP_2") );
  81
  82     array[item++] = new TestCase(   SECTION,
  83                                     "var EXP_1 = new Object(true); var EXP_2 = new Object(false); EXP_1 - EXP_2",
  84                                     1,
  85                                     eval("var EXP_1 = new Object(true); var EXP_2 = new Object(false); EXP_1 - EXP_2") );
  86
  87     array[item++] = new TestCase(   SECTION,
  88                                     "var EXP_1 = new Object(new Boolean(true)); var EXP_2 = new Object(new Boolean(false)); EXP_1 - EXP_2",
  89                                     1,
  90                                     eval("var EXP_1 = new Object(new Boolean(true)); var EXP_2 = new Object(new Boolean(false)); EXP_1 - EXP_2") );
  91
  92     array[item++] = new TestCase(   SECTION,
  93                                     "var EXP_1 = new MyObject(true); var EXP_2 = new MyObject(false); EXP_1 - EXP_2",
  94                                     1,
  95                                     eval("var EXP_1 = new MyObject(true); var EXP_2 = new MyObject(false); EXP_1 - EXP_2") );
  96
  97     array[item++] = new TestCase(   SECTION,
  98                                     "var EXP_1 = new MyObject(new Boolean(true)); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 - EXP_2",
  99                                     Number.NaN,
 100                                     eval("var EXP_1 = new MyObject(new Boolean(true)); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 - EXP_2") );
 101
 102     array[item++] = new TestCase(   SECTION,
 103                                     "var EXP_1 = new MyOtherObject(new Boolean(true)); var EXP_2 = new MyOtherObject(new Boolean(false)); EXP_1 - EXP_2",
 104                                     Number.NaN,
 105                                     eval("var EXP_1 = new MyOtherObject(new Boolean(true)); var EXP_2 = new MyOtherObject(new Boolean(false)); EXP_1 - EXP_2") );
 106
 107     array[item++] = new TestCase(   SECTION,
 108                                     "var EXP_1 = new MyValuelessObject(true); var EXP_2 = new MyValuelessObject(false); EXP_1 - EXP_2",
 109                                     1,
 110                                     eval("var EXP_1 = new MyValuelessObject(true); var EXP_2 = new MyValuelessObject(false); EXP_1 - EXP_2") );
 111
 112     array[item++] = new TestCase(   SECTION,
 113                                     "var EXP_1 = new MyValuelessObject(new Boolean(true)); var EXP_2 = new MyValuelessObject(new Boolean(false)); EXP_1 - EXP_2",
 114                                     Number.NaN,
 115                                     eval("var EXP_1 = new MyValuelessObject(new Boolean(true)); var EXP_2 = new MyValuelessObject(new Boolean(false)); EXP_1 - EXP_2") );
 116
 117     // tests for number primitive, number object, Object object, a "MyObject" whose value is
 118     // a number primitive and a number object, and "MyValuelessObject", where the value is
 119     // set in the object's prototype, not the object itself.
 120
 121     array[item++] = new TestCase(   SECTION,
 122                                     "var EXP_1 = 100; var EXP_2 = 1; EXP_1 - EXP_2",
 123                                     99,
 124                                     eval("var EXP_1 = 100; var EXP_2 = 1; EXP_1 - EXP_2") );
 125
 126     array[item++] = new TestCase(   SECTION,
 127                                     "var EXP_1 = new Number(100); var EXP_2 = new Number(1); EXP_1 - EXP_2",
 128                                     99,
 129                                     eval("var EXP_1 = new Number(100); var EXP_2 = new Number(1); EXP_1 - EXP_2") );
 130
 131     array[item++] = new TestCase(   SECTION,
 132                                     "var EXP_1 = new Object(100); var EXP_2 = new Object(1); EXP_1 - EXP_2",
 133                                     99,
 134                                     eval("var EXP_1 = new Object(100); var EXP_2 = new Object(1); EXP_1 - EXP_2") );
 135
 136     array[item++] = new TestCase(   SECTION,
 137                                     "var EXP_1 = new Object(new Number(100)); var EXP_2 = new Object(new Number(1)); EXP_1 - EXP_2",
 138                                     99,
 139                                     eval("var EXP_1 = new Object(new Number(100)); var EXP_2 = new Object(new Number(1)); EXP_1 - EXP_2") );
 140
 141     array[item++] = new TestCase(   SECTION,
 142                                     "var EXP_1 = new MyObject(100); var EXP_2 = new MyObject(1); EXP_1 - EXP_2",
 143                                     99,
 144                                     eval("var EXP_1 = new MyObject(100); var EXP_2 = new MyObject(1); EXP_1 - EXP_2") );
 145
 146     array[item++] = new TestCase(   SECTION,
 147                                     "var EXP_1 = new MyObject(new Number(100)); var EXP_2 = new MyObject(new Number(1)); EXP_1 - EXP_2",
 148                                     Number.NaN,
 149                                     eval("var EXP_1 = new MyObject(new Number(100)); var EXP_2 = new MyObject(new Number(1)); EXP_1 - EXP_2") );
 150
 151     array[item++] = new TestCase(   SECTION,
 152                                     "var EXP_1 = new MyOtherObject(new Number(100)); var EXP_2 = new MyOtherObject(new Number(1)); EXP_1 - EXP_2",
 153                                     99,
 154                                     eval("var EXP_1 = new MyOtherObject(new Number(100)); var EXP_2 = new MyOtherObject(new Number(1)); EXP_1 - EXP_2") );
 155
 156     array[item++] = new TestCase(   SECTION,
 157                                     "var EXP_1 = new MyValuelessObject(100); var EXP_2 = new MyValuelessObject(1); EXP_1 - EXP_2",
 158                                     99,
 159                                     eval("var EXP_1 = new MyValuelessObject(100); var EXP_2 = new MyValuelessObject(1); EXP_1 - EXP_2") );
 160 /*
 161     array[item++] = new TestCase(   SECTION,
 162                                     "var EXP_1 = new MyValuelessObject(new Number(100)); var EXP_2 = new MyValuelessObject(new Number(1)); EXP_1 - EXP_2",
 163                                     Number.NaN,
 164                                     eval("var EXP_1 = new MyValuelessObject(new Number(100)); var EXP_2 = new MyValuelessObject(new Number(1)); EXP_1 - EXP_2") );
 165 */
 166     // same thing with string!
 167     array[item++] = new TestCase(   SECTION,
 168                                     "var EXP_1 = new MyOtherObject(new String('0xff')); var EXP_2 = new MyOtherObject(new String('1'); EXP_1 - EXP_2",
 169                                     254,
 170                                     eval("var EXP_1 = new MyOtherObject(new String('0xff')); var EXP_2 = new MyOtherObject(new String('1')); EXP_1 - EXP_2") );
 171
 172     return ( array );
 173 }
 174 function MyProtoValuelessObject() {
 175     this.valueOf = new Function ( "" );
 176     this.__proto__ = null;
 177 }
 178 function MyProtolessObject( value ) {
 179     this.valueOf = new Function( "return this.value" );
 180     this.__proto__ = null;
 181     this.value = value;
 182 }
 183 function MyValuelessObject(value) {
 184     this.__proto__ = new MyPrototypeObject(value);
 185 }
 186 function MyPrototypeObject(value) {
 187     this.valueOf = new Function( "return this.value;" );
 188     this.toString = new Function( "return (this.value + '');" );
 189     this.value = value;
 190 }
 191 function MyObject( value ) {
 192     this.valueOf = new Function( "return this.value" );
 193     this.value = value;
 194 }
 195 function MyOtherObject( value ) {
 196     this.valueOf = new Function( "return this.value" );
 197     this.toString = new Function ( "return this.value + ''" );
 198     this.value = value;
 199 }