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86 строки
4.0 KiB
JavaScript
86 строки
4.0 KiB
JavaScript
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/**
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File Name: 9.3.js
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ECMA Section: 9.3 Type Conversion: ToNumber
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Description: rules for converting an argument to a number.
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see 9.3.1 for cases for converting strings to numbers.
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special cases:
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undefined NaN
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Null NaN
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Boolean 1 if true; +0 if false
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Number the argument ( no conversion )
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String see test 9.3.1
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Object see test 9.3-1
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For ToNumber applied to the String type, see test 9.3.1.
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For ToNumber applied to the object type, see test 9.3-1.
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Author: christine@netscape.com
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Date: 10 july 1997
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*/
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var SECTION = "9.3";
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var VERSION = "ECMA_1";
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startTest();
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var TITLE = "ToNumber";
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writeHeaderToLog( SECTION + " "+ TITLE);
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// special cases here
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new TestCase( SECTION, "Number()", 0, Number() );
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new TestCase( SECTION, "Number(eval('var x'))", Number.NaN, Number(eval("var x")) );
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new TestCase( SECTION, "Number(void 0)", Number.NaN, Number(void 0) );
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new TestCase( SECTION, "Number(null)", 0, Number(null) );
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new TestCase( SECTION, "Number(true)", 1, Number(true) );
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new TestCase( SECTION, "Number(false)", 0, Number(false) );
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new TestCase( SECTION, "Number(0)", 0, Number(0) );
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new TestCase( SECTION, "Number(-0)", -0, Number(-0) );
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new TestCase( SECTION, "Number(1)", 1, Number(1) );
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new TestCase( SECTION, "Number(-1)", -1, Number(-1) );
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new TestCase( SECTION, "Number(Number.MAX_VALUE)", 1.7976931348623157e308, Number(Number.MAX_VALUE) );
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new TestCase( SECTION, "Number(Number.MIN_VALUE)", 5e-324, Number(Number.MIN_VALUE) );
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new TestCase( SECTION, "Number(Number.NaN)", Number.NaN, Number(Number.NaN) );
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new TestCase( SECTION, "Number(Number.POSITIVE_INFINITY)", Number.POSITIVE_INFINITY, Number(Number.POSITIVE_INFINITY) );
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new TestCase( SECTION, "Number(Number.NEGATIVE_INFINITY)", Number.NEGATIVE_INFINITY, Number(Number.NEGATIVE_INFINITY) );
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test();
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