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: 11.6.1-1.js 24 ECMA Section: 11.6.1 The addition operator ( + ) 25 Description: 26 27 The addition operator either performs string concatenation or numeric 28 addition. 29 30 The production AdditiveExpression : AdditiveExpression + MultiplicativeExpression 31 is evaluated as follows: 32 33 1. Evaluate AdditiveExpression. 34 2. Call GetValue(Result(1)). 35 3. Evaluate MultiplicativeExpression. 36 4. Call GetValue(Result(3)). 37 5. Call ToPrimitive(Result(2)). 38 6. Call ToPrimitive(Result(4)). 39 7. If Type(Result(5)) is String or Type(Result(6)) is String, go to step 12. 40 (Note that this step differs from step 3 in the algorithm for comparison 41 for the relational operators in using or instead of and.) 42 8. Call ToNumber(Result(5)). 43 9. Call ToNumber(Result(6)). 44 10. Apply the addition operation to Result(8) and Result(9). See the discussion below (11.6.3). 45 11. Return Result(10). 46 12. Call ToString(Result(5)). 47 13. Call ToString(Result(6)). 48 14. Concatenate Result(12) followed by Result(13). 49 15. Return Result(14). 50 51 Note that no hint is provided in the calls to ToPrimitive in steps 5 and 6. 52 All native ECMAScript objects except Date objects handle the absence of a 53 hint as if the hint Number were given; Date objects handle the absence of a 54 hint as if the hint String were given. Host objects may handle the absence 55 of a hint in some other manner. 56 57 This test does not cover cases where the Additive or Mulplicative expression 58 ToPrimitive is string. 59 60 Author: christine (at) netscape.com 61 Date: 12 november 1997 62 */ 63 var SECTION = "11.6.1-1"; 64 var VERSION = "ECMA_1"; 65 startTest(); 66 67 var testcases = getTestCases(); 68 69 writeHeaderToLog( SECTION + " The Addition operator ( + )"); 70 test(); 71 72 function test() { 73 for ( tc=0; tc < testcases.length; tc++ ) { 74 testcases[tc].passed = writeTestCaseResult( 75 testcases[tc].expect, 76 testcases[tc].actual, 77 testcases[tc].description +" = "+ 78 testcases[tc].actual ); 79 80 testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; 81 } 82 stopTest(); 83 return ( testcases ); 84 } 85 86 function getTestCases() { 87 var array = new Array(); 88 var item = 0; 89 90 // tests for boolean primitive, boolean object, Object object, a "MyObject" whose value is 91 // a boolean primitive and a boolean object, and "MyValuelessObject", where the value is 92 // set in the object's prototype, not the object itself. 93 94 array[item++] = new TestCase( SECTION, 95 "var EXP_1 = true; var EXP_2 = false; EXP_1 + EXP_2", 96 1, 97 eval("var EXP_1 = true; var EXP_2 = false; EXP_1 + EXP_2") ); 98 99 array[item++] = new TestCase( SECTION, 100 "var EXP_1 = new Boolean(true); var EXP_2 = new Boolean(false); EXP_1 + EXP_2", 101 1, 102 eval("var EXP_1 = new Boolean(true); var EXP_2 = new Boolean(false); EXP_1 + EXP_2") ); 103 104 array[item++] = new TestCase( SECTION, 105 "var EXP_1 = new Object(true); var EXP_2 = new Object(false); EXP_1 + EXP_2", 106 1, 107 eval("var EXP_1 = new Object(true); var EXP_2 = new Object(false); EXP_1 + EXP_2") ); 108 109 array[item++] = new TestCase( SECTION, 110 "var EXP_1 = new Object(new Boolean(true)); var EXP_2 = new Object(new Boolean(false)); EXP_1 + EXP_2", 111 1, 112 eval("var EXP_1 = new Object(new Boolean(true)); var EXP_2 = new Object(new Boolean(false)); EXP_1 + EXP_2") ); 113 114 array[item++] = new TestCase( SECTION, 115 "var EXP_1 = new MyObject(true); var EXP_2 = new MyObject(false); EXP_1 + EXP_2", 116 1, 117 eval("var EXP_1 = new MyObject(true); var EXP_2 = new MyObject(false); EXP_1 + EXP_2") ); 118 119 array[item++] = new TestCase( SECTION, 120 "var EXP_1 = new MyObject(new Boolean(true)); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 + EXP_2", 121 "[object Object][object Object]", 122 eval("var EXP_1 = new MyObject(new Boolean(true)); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 + EXP_2") ); 123 124 array[item++] = new TestCase( SECTION, 125 "var EXP_1 = new MyValuelessObject(true); var EXP_2 = new MyValuelessObject(false); EXP_1 + EXP_2", 126 1, 127 eval("var EXP_1 = new MyValuelessObject(true); var EXP_2 = new MyValuelessObject(false); EXP_1 + EXP_2") ); 128 129 array[item++] = new TestCase( SECTION, 130 "var EXP_1 = new MyValuelessObject(new Boolean(true)); var EXP_2 = new MyValuelessObject(new Boolean(false)); EXP_1 + EXP_2", 131 "truefalse", 132 eval("var EXP_1 = new MyValuelessObject(new Boolean(true)); var EXP_2 = new MyValuelessObject(new Boolean(false)); EXP_1 + EXP_2") ); 133 134 // tests for number primitive, number object, Object object, a "MyObject" whose value is 135 // a number primitive and a number object, and "MyValuelessObject", where the value is 136 // set in the object's prototype, not the object itself. 137 138 array[item++] = new TestCase( SECTION, 139 "var EXP_1 = 100; var EXP_2 = -1; EXP_1 + EXP_2", 140 99, 141 eval("var EXP_1 = 100; var EXP_2 = -1; EXP_1 + EXP_2") ); 142 143 array[item++] = new TestCase( SECTION, 144 "var EXP_1 = new Number(100); var EXP_2 = new Number(-1); EXP_1 + EXP_2", 145 99, 146 eval("var EXP_1 = new Number(100); var EXP_2 = new Number(-1); EXP_1 + EXP_2") ); 147 148 array[item++] = new TestCase( SECTION, 149 "var EXP_1 = new Object(100); var EXP_2 = new Object(-1); EXP_1 + EXP_2", 150 99, 151 eval("var EXP_1 = new Object(100); var EXP_2 = new Object(-1); EXP_1 + EXP_2") ); 152 153 array[item++] = new TestCase( SECTION, 154 "var EXP_1 = new Object(new Number(100)); var EXP_2 = new Object(new Number(-1)); EXP_1 + EXP_2", 155 99, 156 eval("var EXP_1 = new Object(new Number(100)); var EXP_2 = new Object(new Number(-1)); EXP_1 + EXP_2") ); 157 158 array[item++] = new TestCase( SECTION, 159 "var EXP_1 = new MyObject(100); var EXP_2 = new MyObject(-1); EXP_1 + EXP_2", 160 99, 161 eval("var EXP_1 = new MyObject(100); var EXP_2 = new MyObject(-1); EXP_1 + EXP_2") ); 162 163 array[item++] = new TestCase( SECTION, 164 "var EXP_1 = new MyObject(new Number(100)); var EXP_2 = new MyObject(new Number(-1)); EXP_1 + EXP_2", 165 "[object Object][object Object]", 166 eval("var EXP_1 = new MyObject(new Number(100)); var EXP_2 = new MyObject(new Number(-1)); EXP_1 + EXP_2") ); 167 168 169 array[item++] = new TestCase( SECTION, 170 "var EXP_1 = new MyValuelessObject(100); var EXP_2 = new MyValuelessObject(-1); EXP_1 + EXP_2", 171 99, 172 eval("var EXP_1 = new MyValuelessObject(100); var EXP_2 = new MyValuelessObject(-1); EXP_1 + EXP_2") ); 173 174 array[item++] = new TestCase( SECTION, 175 "var EXP_1 = new MyValuelessObject(new Number(100)); var EXP_2 = new MyValuelessObject(new Number(-1)); EXP_1 + EXP_2", 176 "100-1", 177 eval("var EXP_1 = new MyValuelessObject(new Number(100)); var EXP_2 = new MyValuelessObject(new Number(-1)); EXP_1 + EXP_2") ); 178 179 array[item++] = new TestCase( SECTION, 180 "var EXP_1 = new MyValuelessObject( new MyValuelessObject( new Boolean(true) ) ); EXP_1 + EXP_1", 181 "truetrue", 182 eval("var EXP_1 = new MyValuelessObject( new MyValuelessObject( new Boolean(true) ) ); EXP_1 + EXP_1") ); 183 184 return ( array ); 185 } 186 187 188 function MyProtoValuelessObject() { 189 this.valueOf = new Function ( "" ); 190 this.__proto__ = null; 191 } 192 193 function MyProtolessObject( value ) { 194 this.valueOf = new Function( "return this.value" ); 195 this.__proto__ = null; 196 this.value = value; 197 } 198 199 function MyValuelessObject(value) { 200 this.__proto__ = new MyPrototypeObject(value); 201 } 202 function MyPrototypeObject(value) { 203 this.valueOf = new Function( "return this.value;" ); 204 this.toString = new Function( "return (this.value + '');" ); 205 this.value = value; 206 } 207 208 function MyObject( value ) { 209 this.valueOf = new Function( "return this.value" ); 210 this.value = value; 211 } 212
