1 /** 2 * File Name: StrictEquality-001.js 3 * ECMA Section: 11.9.6.js 4 * Description: 5 * 6 * Author: christine (at) netscape.com 7 * Date: 4 september 1998 8 */ 9 var SECTION = "StrictEquality-001 - 11.9.6"; 10 var VERSION = "ECMA_2"; 11 var TITLE = "The strict equality operator ( === )"; 12 13 startTest(); 14 writeHeaderToLog( SECTION + " "+ TITLE); 15 16 var tc = 0; 17 var testcases = new Array(); 18 19 20 // 1. If Type(x) is different from Type(y) return false 21 22 StrictEquality( true, new Boolean(true), false ); 23 StrictEquality( new Boolean(), false, false ); 24 StrictEquality( "", new String(), false ); 25 StrictEquality( new String("hi"), "hi", false ); 26 27 // 2. If Type(x) is not Number go to step 9. 28 29 // 3. If x is NaN, return false 30 StrictEquality( NaN, NaN, false ); 31 StrictEquality( NaN, 0, false ); 32 33 // 4. If y is NaN, return false. 34 StrictEquality( 0, NaN, false ); 35 36 // 5. if x is the same number value as y, return true 37 38 // 6. If x is +0 and y is -0, return true 39 40 // 7. If x is -0 and y is +0, return true 41 42 // 8. Return false. 43 44 45 // 9. If Type(x) is String, then return true if x and y are exactly 46 // the same sequence of characters ( same length and same characters 47 // in corresponding positions.) Otherwise return false. 48 49 // 10. If Type(x) is Boolean, return true if x and y are both true or 50 // both false. otherwise return false. 51 52 53 // Return true if x and y refer to the same object. Otherwise return 54 // false. 55 56 // Return false. 57 58 59 test(); 60 61 function StrictEquality( x, y, expect ) { 62 result = ( x === y ); 63 64 testcases[tc++] = new TestCase( 65 SECTION, 66 x +" === " + y, 67 expect, 68 result ); 69 } 70 71
