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 (at) 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 } 155
