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: 9.3.js 24 ECMA Section: 9.3 Type Conversion: ToNumber 25 Description: rules for converting an argument to a number. 26 see 9.3.1 for cases for converting strings to numbers. 27 special cases: 28 undefined NaN 29 Null NaN 30 Boolean 1 if true; +0 if false 31 Number the argument ( no conversion ) 32 String see test 9.3.1 33 Object see test 9.3-1 34 35 For ToNumber applied to the String type, see test 9.3.1. 36 For ToNumber applied to the object type, see test 9.3-1. 37 38 Author: christine (at) netscape.com 39 Date: 10 july 1997 40 41 */ 42 var SECTION = "9.3"; 43 var VERSION = "ECMA_1"; 44 startTest(); 45 var TITLE = "ToNumber"; 46 47 writeHeaderToLog( SECTION + " "+ TITLE); 48 49 var testcases = getTestCases(); 50 test(); 51 52 53 function test() { 54 for ( tc=0; tc < testcases.length; tc++ ) { 55 testcases[tc].passed = writeTestCaseResult( 56 testcases[tc].expect, 57 testcases[tc].actual, 58 testcases[tc].description +" = "+ 59 testcases[tc].actual ); 60 testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; 61 } 62 stopTest(); 63 return ( testcases ); 64 } 65 function getTestCases() { 66 var array = new Array(); 67 var item = 0; 68 69 // special cases here 70 71 array[item++] = new TestCase( SECTION, "Number()", 0, Number() ); 72 array[item++] = new TestCase( SECTION, "Number(eval('var x'))", Number.NaN, Number(eval("var x")) ); 73 array[item++] = new TestCase( SECTION, "Number(void 0)", Number.NaN, Number(void 0) ); 74 array[item++] = new TestCase( SECTION, "Number(null)", 0, Number(null) ); 75 array[item++] = new TestCase( SECTION, "Number(true)", 1, Number(true) ); 76 array[item++] = new TestCase( SECTION, "Number(false)", 0, Number(false) ); 77 array[item++] = new TestCase( SECTION, "Number(0)", 0, Number(0) ); 78 array[item++] = new TestCase( SECTION, "Number(-0)", -0, Number(-0) ); 79 array[item++] = new TestCase( SECTION, "Number(1)", 1, Number(1) ); 80 array[item++] = new TestCase( SECTION, "Number(-1)", -1, Number(-1) ); 81 array[item++] = new TestCase( SECTION, "Number(Number.MAX_VALUE)", 1.7976931348623157e308, Number(Number.MAX_VALUE) ); 82 array[item++] = new TestCase( SECTION, "Number(Number.MIN_VALUE)", 5e-324, Number(Number.MIN_VALUE) ); 83 84 array[item++] = new TestCase( SECTION, "Number(Number.NaN)", Number.NaN, Number(Number.NaN) ); 85 array[item++] = new TestCase( SECTION, "Number(Number.POSITIVE_INFINITY)", Number.POSITIVE_INFINITY, Number(Number.POSITIVE_INFINITY) ); 86 array[item++] = new TestCase( SECTION, "Number(Number.NEGATIVE_INFINITY)", Number.NEGATIVE_INFINITY, Number(Number.NEGATIVE_INFINITY) ); 87 88 return ( array ); 89 } 90
