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Diffstat (limited to 'js/src/tests/ecma/Math/15.8.2.15.js')
| -rw-r--r-- | js/src/tests/ecma/Math/15.8.2.15.js | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/js/src/tests/ecma/Math/15.8.2.15.js b/js/src/tests/ecma/Math/15.8.2.15.js new file mode 100644 index 000000000..4ef748211 --- /dev/null +++ b/js/src/tests/ecma/Math/15.8.2.15.js @@ -0,0 +1,168 @@ +/* -*- 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: 15.8.2.15.js + ECMA Section: 15.8.2.15 Math.round(x) + Description: return the greatest number value that is closest to the + argument and is an integer. if two integers are equally + close to the argument. then the result is the number value + that is closer to Infinity. if the argument is an integer, + return the argument. + special cases: + - if x is NaN return NaN + - if x = +0 return +0 + - if x = -0 return -0 + - if x = Infinity return Infinity + - if x = -Infinity return -Infinity + - if 0 < x < 0.5 return 0 + - if -0.5 <= x < 0 return -0 + example: + Math.round( 3.5 ) == 4 + Math.round( -3.5 ) == 3 + also: + - Math.round(x) == Math.floor( x + 0.5 ) + except if x = -0. in that case, Math.round(x) = -0 + + and Math.floor( x+0.5 ) = +0 + + + Author: christine@netscape.com + Date: 7 july 1997 +*/ + +var SECTION = "15.8.2.15"; +var VERSION = "ECMA_1"; +var TITLE = "Math.round(x)"; +var BUGNUMBER="331411"; + +var EXCLUDE = "true"; + +startTest(); + +writeHeaderToLog( SECTION + " "+ TITLE); + +new TestCase( SECTION, + "Math.round.length", + 1, + Math.round.length ); + +new TestCase( SECTION, + "Math.round()", + Number.NaN, + Math.round() ); + +new TestCase( SECTION, + "Math.round(null)", + 0, + Math.round(0) ); + +new TestCase( SECTION, + "Math.round(void 0)", + Number.NaN, + Math.round(void 0) ); + +new TestCase( SECTION, + "Math.round(true)", + 1, + Math.round(true) ); + +new TestCase( SECTION, + "Math.round(false)", + 0, + Math.round(false) ); + +new TestCase( SECTION, + "Math.round('.99999')", + 1, + Math.round('.99999') ); + +new TestCase( SECTION, + "Math.round('12345e-2')", + 123, + Math.round('12345e-2') ); + +new TestCase( SECTION, + "Math.round(NaN)", + Number.NaN, + Math.round(Number.NaN) ); + +new TestCase( SECTION, + "Math.round(0)", + 0, + Math.round(0) ); + +new TestCase( SECTION, + "Math.round(-0)", + -0, + Math.round(-0)); + +new TestCase( SECTION, + "Infinity/Math.round(-0)", + -Infinity, + Infinity/Math.round(-0) ); + +new TestCase( SECTION, + "Math.round(Infinity)", + Number.POSITIVE_INFINITY, + Math.round(Number.POSITIVE_INFINITY)); + +new TestCase( SECTION, + "Math.round(-Infinity)", + Number.NEGATIVE_INFINITY, + Math.round(Number.NEGATIVE_INFINITY)); + +new TestCase( SECTION, + "Math.round(0.49)", + 0, + Math.round(0.49)); + +new TestCase( SECTION, + "Math.round(0.5)", + 1, + Math.round(0.5)); + +new TestCase( SECTION, + "Math.round(0.51)", + 1, + Math.round(0.51)); + +new TestCase( SECTION, + "Math.round(-0.49)", + -0, + Math.round(-0.49)); + +new TestCase( SECTION, + "Math.round(-0.5)", + -0, + Math.round(-0.5)); + +new TestCase( SECTION, + "Infinity/Math.round(-0.49)", + -Infinity, + Infinity/Math.round(-0.49)); + +new TestCase( SECTION, + "Infinity/Math.round(-0.5)", + -Infinity, + Infinity/Math.round(-0.5)); + +new TestCase( SECTION, + "Math.round(-0.51)", + -1, + Math.round(-0.51)); + +new TestCase( SECTION, + "Math.round(3.5)", + 4, + Math.round(3.5)); + +new TestCase( SECTION, + "Math.round(-3.5)", + -3, + Math.round(-3)); + +test(); |