зеркало из https://github.com/mozilla/gecko-dev.git
87 строки
4.1 KiB
JavaScript
87 строки
4.1 KiB
JavaScript
/* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations 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
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*
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*/
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/**
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File Name: 15.8.2.2.js
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ECMA Section: 15.8.2.2 acos( x )
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Description: return an approximation to the arc cosine of the
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argument. the result is expressed in radians and
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range is from +0 to +PI. special cases:
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- if x is NaN, return NaN
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- if x > 1, the result is NaN
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- if x < -1, the result is NaN
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- if x == 1, the result is +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 = "15.8.2.2";
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var VERSION = "ECMA_1";
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startTest();
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var TITLE = "Math.acos()";
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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.acos.length", 1, Math.acos.length );
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array[item++] = new TestCase( SECTION, "Math.acos(void 0)", Number.NaN, Math.acos(void 0) );
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array[item++] = new TestCase( SECTION, "Math.acos()", Number.NaN, Math.acos() );
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array[item++] = new TestCase( SECTION, "Math.acos(null)", Math.PI/2, Math.acos(null) );
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array[item++] = new TestCase( SECTION, "Math.acos(NaN)", Number.NaN, Math.acos(Number.NaN) );
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array[item++] = new TestCase( SECTION, "Math.acos(a string)", Number.NaN, Math.acos("a string") );
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array[item++] = new TestCase( SECTION, "Math.acos('0')", Math.PI/2, Math.acos('0') );
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array[item++] = new TestCase( SECTION, "Math.acos('1')", 0, Math.acos('1') );
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array[item++] = new TestCase( SECTION, "Math.acos('-1')", Math.PI, Math.acos('-1') );
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array[item++] = new TestCase( SECTION, "Math.acos(1.00000001)", Number.NaN, Math.acos(1.00000001) );
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array[item++] = new TestCase( SECTION, "Math.acos(11.00000001)", Number.NaN, Math.acos(-1.00000001) );
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array[item++] = new TestCase( SECTION, "Math.acos(1)", 0, Math.acos(1) );
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array[item++] = new TestCase( SECTION, "Math.acos(-1)", Math.PI, Math.acos(-1) );
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array[item++] = new TestCase( SECTION, "Math.acos(0)", Math.PI/2, Math.acos(0) );
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array[item++] = new TestCase( SECTION, "Math.acos(-0)", Math.PI/2, Math.acos(-0) );
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array[item++] = new TestCase( SECTION, "Math.acos(Math.SQRT1_2)", Math.PI/4, Math.acos(Math.SQRT1_2));
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array[item++] = new TestCase( SECTION, "Math.acos(-Math.SQRT1_2)", Math.PI/4*3, Math.acos(-Math.SQRT1_2));
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array[item++] = new TestCase( SECTION, "Math.acos(0.9999619230642)", Math.PI/360, Math.acos(0.9999619230642));
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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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