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Diffstat (limited to 'js/src/tests/ecma/Math/15.8.2.4.js')
| -rw-r--r-- | js/src/tests/ecma/Math/15.8.2.4.js | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/js/src/tests/ecma/Math/15.8.2.4.js b/js/src/tests/ecma/Math/15.8.2.4.js new file mode 100644 index 000000000..5d73424a8 --- /dev/null +++ b/js/src/tests/ecma/Math/15.8.2.4.js @@ -0,0 +1,122 @@ +/* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + + +/** + File Name: 15.8.2.4.js + ECMA Section: 15.8.2.4 atan( x ) + Description: return an approximation to the arc tangent of the + argument. the result is expressed in radians and + range is from -PI/2 to +PI/2. special cases: + - if x is NaN, the result is NaN + - if x == +0, the result is +0 + - if x == -0, the result is -0 + - if x == +Infinity, the result is approximately +PI/2 + - if x == -Infinity, the result is approximately -PI/2 + Author: christine@netscape.com + Date: 7 july 1997 + +*/ + +var SECTION = "15.8.2.4"; +var VERSION = "ECMA_1"; +var TITLE = "Math.atan()"; +var BUGNUMBER="77391"; + +startTest(); + +writeHeaderToLog( SECTION + " "+ TITLE); + +new TestCase( SECTION, + "Math.atan.length", + 1, + Math.atan.length ); + +new TestCase( SECTION, + "Math.atan()", + Number.NaN, + Math.atan() ); + +new TestCase( SECTION, + "Math.atan(void 0)", + Number.NaN, + Math.atan(void 0) ); + +new TestCase( SECTION, + "Math.atan(null)", + 0, + Math.atan(null) ); + +new TestCase( SECTION, + "Math.atan(NaN)", + Number.NaN, + Math.atan(Number.NaN) ); + +new TestCase( SECTION, + "Math.atan('a string')", + Number.NaN, + Math.atan("a string") ); + +new TestCase( SECTION, + "Math.atan('0')", + 0, + Math.atan('0') ); + +new TestCase( SECTION, + "Math.atan('1')", + Math.PI/4, + Math.atan('1') ); + +new TestCase( SECTION, + "Math.atan('-1')", + -Math.PI/4, + Math.atan('-1') ); + +new TestCase( SECTION, + "Math.atan('Infinity)", + Math.PI/2, + Math.atan('Infinity') ); + +new TestCase( SECTION, + "Math.atan('-Infinity)", + -Math.PI/2, + Math.atan('-Infinity') ); + +new TestCase( SECTION, + "Math.atan(0)", + 0, + Math.atan(0) ); + +new TestCase( SECTION, + "Math.atan(-0)", + -0, + Math.atan(-0) ); + +new TestCase( SECTION, + "Infinity/Math.atan(-0)", + -Infinity, + Infinity/Math.atan(-0) ); + +new TestCase( SECTION, + "Math.atan(Infinity)", + Math.PI/2, + Math.atan(Number.POSITIVE_INFINITY) ); + +new TestCase( SECTION, + "Math.atan(-Infinity)", + -Math.PI/2, + Math.atan(Number.NEGATIVE_INFINITY) ); + +new TestCase( SECTION, + "Math.atan(1)", + Math.PI/4, + Math.atan(1) ); + +new TestCase( SECTION, + "Math.atan(-1)", + -Math.PI/4, + Math.atan(-1) ); + +test(); |