зеркало из https://github.com/mozilla/pjs.git
82 строки
3.6 KiB
JavaScript
82 строки
3.6 KiB
JavaScript
/* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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* License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is Mozilla Communicator client code, released March
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* 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*
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*/
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/**
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File Name: 15.8.2.8.js
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ECMA Section: 15.8.2.8 Math.exp(x)
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Description: return an approximation to the exponential function of
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the argument (e raised to the power of the argument)
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special cases:
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- if x is NaN return NaN
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- if x is 0 return 1
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- if x is -0 return 1
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- if x is Infinity return Infinity
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- if x is -Infinity return 0
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Author: christine@netscape.com
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Date: 7 july 1997
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*/
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var SECTION = "15.8.2.8";
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var VERSION = "ECMA_1";
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startTest();
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var TITLE = "Math.exp(x)";
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writeHeaderToLog( SECTION + " "+ TITLE);
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var testcases = getTestCases();
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test();
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function getTestCases() {
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var array = new Array();
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var item = 0;
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array[item++] = new TestCase( SECTION, "Math.exp.length", 1, Math.exp.length );
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array[item++] = new TestCase( SECTION, "Math.exp()", Number.NaN, Math.exp() );
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array[item++] = new TestCase( SECTION, "Math.exp(null)", 1, Math.exp(null) );
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array[item++] = new TestCase( SECTION, "Math.exp(void 0)", Number.NaN, Math.exp(void 0) );
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array[item++] = new TestCase( SECTION, "Math.exp(1)", Math.E, Math.exp(1) );
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array[item++] = new TestCase( SECTION, "Math.exp(true)", Math.E, Math.exp(true) );
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array[item++] = new TestCase( SECTION, "Math.exp(false)", 1, Math.exp(false) );
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array[item++] = new TestCase( SECTION, "Math.exp('1')", Math.E, Math.exp('1') );
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array[item++] = new TestCase( SECTION, "Math.exp('0')", 1, Math.exp('0') );
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array[item++] = new TestCase( SECTION, "Math.exp(NaN)", Number.NaN, Math.exp(Number.NaN) );
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array[item++] = new TestCase( SECTION, "Math.exp(0)", 1, Math.exp(0) );
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array[item++] = new TestCase( SECTION, "Math.exp(-0)", 1, Math.exp(-0) );
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array[item++] = new TestCase( SECTION, "Math.exp(Infinity)", Number.POSITIVE_INFINITY, Math.exp(Number.POSITIVE_INFINITY) );
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array[item++] = new TestCase( SECTION, "Math.exp(-Infinity)", 0, Math.exp(Number.NEGATIVE_INFINITY) );
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return ( array );
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}
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function test() {
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for ( tc=0; tc < testcases.length; tc++ ) {
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testcases[tc].passed = writeTestCaseResult(
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testcases[tc].expect,
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testcases[tc].actual,
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testcases[tc].description +" = "+
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testcases[tc].actual );
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testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
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}
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stopTest();
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return ( testcases );
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}
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