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authorSteve Block <steveblock@google.com>2011-05-06 11:45:16 +0100
committerSteve Block <steveblock@google.com>2011-05-12 13:44:10 +0100
commitcad810f21b803229eb11403f9209855525a25d57 (patch)
tree29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /JavaScriptCore/tests/mozilla/ecma/Expressions/11.5.3.js
parent121b0cf4517156d0ac5111caf9830c51b69bae8f (diff)
downloadexternal_webkit-cad810f21b803229eb11403f9209855525a25d57.zip
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Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
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-/* The contents of this file are subject to the Netscape Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/NPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is Mozilla Communicator client code, released March
- * 31, 1998.
- *
- * The Initial Developer of the Original Code is Netscape Communications
- * Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- */
-/**
- File Name: 11.5.3.js
- ECMA Section: 11.5.3 Applying the % operator
- Description:
-
- The binary % operator is said to yield the remainder of its operands from
- an implied division; the left operand is the dividend and the right operand
- is the divisor. In C and C++, the remainder operator accepts only integral
- operands, but in ECMAScript, it also accepts floating-point operands.
-
- The result of a floating-point remainder operation as computed by the %
- operator is not the same as the "remainder" operation defined by IEEE 754.
- The IEEE 754 "remainder" operation computes the remainder from a rounding
- division, not a truncating division, and so its behavior is not analogous
- to that of the usual integer remainder operator. Instead the ECMAScript
- language defines % on floating-point operations to behave in a manner
- analogous to that of the Java integer remainder operator; this may be
- compared with the C library function fmod.
-
- The result of a ECMAScript floating-point remainder operation is determined by the rules of IEEE arithmetic:
-
- If either operand is NaN, the result is NaN.
- The sign of the result equals the sign of the dividend.
- If the dividend is an infinity, or the divisor is a zero, or both, the result is NaN.
- If the dividend is finite and the divisor is an infinity, the result equals the dividend.
- If the dividend is a zero and the divisor is finite, the result is the same as the dividend.
- In the remaining cases, where neither an infinity, nor a zero, nor NaN is involved, the floating-point remainder r
- from a dividend n and a divisor d is defined by the mathematical relation r = n (d * q) where q is an integer that
- is negative only if n/d is negative and positive only if n/d is positive, and whose magnitude is as large as
- possible without exceeding the magnitude of the true mathematical quotient of n and d.
-
- Author: christine@netscape.com
- Date: 12 november 1997
-*/
- var SECTION = "11.5.3";
- var VERSION = "ECMA_1";
- startTest();
- var testcases = getTestCases();
- var BUGNUMBER="111202";
-
- writeHeaderToLog( SECTION + " Applying the % operator");
- test();
-
-function test() {
- for ( tc=0; tc < testcases.length; tc++ ) {
- testcases[tc].passed = writeTestCaseResult(
- testcases[tc].expect,
- testcases[tc].actual,
- testcases[tc].description +" = "+
- testcases[tc].actual );
-
- testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
- }
- stopTest();
- return ( testcases );
-}
-function getTestCases() {
- var array = new Array();
- var item = 0;
-
- // if either operand is NaN, the result is NaN.
-
- array[item++] = new TestCase( SECTION, "Number.NaN % Number.NaN", Number.NaN, Number.NaN % Number.NaN );
- array[item++] = new TestCase( SECTION, "Number.NaN % 1", Number.NaN, Number.NaN % 1 );
- array[item++] = new TestCase( SECTION, "1 % Number.NaN", Number.NaN, 1 % Number.NaN );
-
- array[item++] = new TestCase( SECTION, "Number.POSITIVE_INFINITY % Number.NaN", Number.NaN, Number.POSITIVE_INFINITY % Number.NaN );
- array[item++] = new TestCase( SECTION, "Number.NEGATIVE_INFINITY % Number.NaN", Number.NaN, Number.NEGATIVE_INFINITY % Number.NaN );
-
- // If the dividend is an infinity, or the divisor is a zero, or both, the result is NaN.
- // dividend is an infinity
-
- array[item++] = new TestCase( SECTION, "Number.NEGATIVE_INFINITY % Number.NEGATIVE_INFINITY", Number.NaN, Number.NEGATIVE_INFINITY % Number.NEGATIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "Number.POSITIVE_INFINITY % Number.NEGATIVE_INFINITY", Number.NaN, Number.POSITIVE_INFINITY % Number.NEGATIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "Number.NEGATIVE_INFINITY % Number.POSITIVE_INFINITY", Number.NaN, Number.NEGATIVE_INFINITY % Number.POSITIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "Number.POSITIVE_INFINITY % Number.POSITIVE_INFINITY", Number.NaN, Number.POSITIVE_INFINITY % Number.POSITIVE_INFINITY );
-
- array[item++] = new TestCase( SECTION, "Number.POSITIVE_INFINITY % 0", Number.NaN, Number.POSITIVE_INFINITY % 0 );
- array[item++] = new TestCase( SECTION, "Number.NEGATIVE_INFINITY % 0", Number.NaN, Number.NEGATIVE_INFINITY % 0 );
- array[item++] = new TestCase( SECTION, "Number.POSITIVE_INFINITY % -0", Number.NaN, Number.POSITIVE_INFINITY % -0 );
- array[item++] = new TestCase( SECTION, "Number.NEGATIVE_INFINITY % -0", Number.NaN, Number.NEGATIVE_INFINITY % -0 );
-
- array[item++] = new TestCase( SECTION, "Number.NEGATIVE_INFINITY % 1 ", Number.NaN, Number.NEGATIVE_INFINITY % 1 );
- array[item++] = new TestCase( SECTION, "Number.NEGATIVE_INFINITY % -1 ", Number.NaN, Number.NEGATIVE_INFINITY % -1 );
- array[item++] = new TestCase( SECTION, "Number.POSITIVE_INFINITY % 1 ", Number.NaN, Number.POSITIVE_INFINITY % 1 );
- array[item++] = new TestCase( SECTION, "Number.POSITIVE_INFINITY % -1 ", Number.NaN, Number.POSITIVE_INFINITY % -1 );
-
- array[item++] = new TestCase( SECTION, "Number.NEGATIVE_INFINITY % Number.MAX_VALUE ", Number.NaN, Number.NEGATIVE_INFINITY % Number.MAX_VALUE );
- array[item++] = new TestCase( SECTION, "Number.NEGATIVE_INFINITY % -Number.MAX_VALUE ", Number.NaN, Number.NEGATIVE_INFINITY % -Number.MAX_VALUE );
- array[item++] = new TestCase( SECTION, "Number.POSITIVE_INFINITY % Number.MAX_VALUE ", Number.NaN, Number.POSITIVE_INFINITY % Number.MAX_VALUE );
- array[item++] = new TestCase( SECTION, "Number.POSITIVE_INFINITY % -Number.MAX_VALUE ", Number.NaN, Number.POSITIVE_INFINITY % -Number.MAX_VALUE );
-
- // divisor is 0
- array[item++] = new TestCase( SECTION, "0 % -0", Number.NaN, 0 % -0 );
- array[item++] = new TestCase( SECTION, "-0 % 0", Number.NaN, -0 % 0 );
- array[item++] = new TestCase( SECTION, "-0 % -0", Number.NaN, -0 % -0 );
- array[item++] = new TestCase( SECTION, "0 % 0", Number.NaN, 0 % 0 );
-
- array[item++] = new TestCase( SECTION, "1 % 0", Number.NaN, 1%0 );
- array[item++] = new TestCase( SECTION, "1 % -0", Number.NaN, 1%-0 );
- array[item++] = new TestCase( SECTION, "-1 % 0", Number.NaN, -1%0 );
- array[item++] = new TestCase( SECTION, "-1 % -0", Number.NaN, -1%-0 );
-
- array[item++] = new TestCase( SECTION, "Number.MAX_VALUE % 0", Number.NaN, Number.MAX_VALUE%0 );
- array[item++] = new TestCase( SECTION, "Number.MAX_VALUE % -0", Number.NaN, Number.MAX_VALUE%-0 );
- array[item++] = new TestCase( SECTION, "-Number.MAX_VALUE % 0", Number.NaN, -Number.MAX_VALUE%0 );
- array[item++] = new TestCase( SECTION, "-Number.MAX_VALUE % -0", Number.NaN, -Number.MAX_VALUE%-0 );
-
- // If the dividend is finite and the divisor is an infinity, the result equals the dividend.
-
- array[item++] = new TestCase( SECTION, "1 % Number.NEGATIVE_INFINITY", 1, 1 % Number.NEGATIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "1 % Number.POSITIVE_INFINITY", 1, 1 % Number.POSITIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "-1 % Number.POSITIVE_INFINITY", -1, -1 % Number.POSITIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "-1 % Number.NEGATIVE_INFINITY", -1, -1 % Number.NEGATIVE_INFINITY );
-
- array[item++] = new TestCase( SECTION, "Number.MAX_VALUE % Number.NEGATIVE_INFINITY", Number.MAX_VALUE, Number.MAX_VALUE % Number.NEGATIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "Number.MAX_VALUE % Number.POSITIVE_INFINITY", Number.MAX_VALUE, Number.MAX_VALUE % Number.POSITIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "-Number.MAX_VALUE % Number.POSITIVE_INFINITY", -Number.MAX_VALUE, -Number.MAX_VALUE % Number.POSITIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "-Number.MAX_VALUE % Number.NEGATIVE_INFINITY", -Number.MAX_VALUE, -Number.MAX_VALUE % Number.NEGATIVE_INFINITY );
-
- array[item++] = new TestCase( SECTION, "0 % Number.POSITIVE_INFINITY", 0, 0 % Number.POSITIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "0 % Number.NEGATIVE_INFINITY", 0, 0 % Number.NEGATIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "-0 % Number.POSITIVE_INFINITY", -0, -0 % Number.POSITIVE_INFINITY );
- array[item++] = new TestCase( SECTION, "-0 % Number.NEGATIVE_INFINITY", -0, -0 % Number.NEGATIVE_INFINITY );
-
- // If the dividend is a zero and the divisor is finite, the result is the same as the dividend.
-
- array[item++] = new TestCase( SECTION, "0 % 1", 0, 0 % 1 );
- array[item++] = new TestCase( SECTION, "0 % -1", -0, 0 % -1 );
- array[item++] = new TestCase( SECTION, "-0 % 1", -0, -0 % 1 );
- array[item++] = new TestCase( SECTION, "-0 % -1", 0, -0 % -1 );
-
-// In the remaining cases, where neither an infinity, nor a zero, nor NaN is involved, the floating-point remainder r
-// from a dividend n and a divisor d is defined by the mathematical relation r = n (d * q) where q is an integer that
-// is negative only if n/d is negative and positive only if n/d is positive, and whose magnitude is as large as
-// possible without exceeding the magnitude of the true mathematical quotient of n and d.
-
- return ( array );
-}