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comparison: js/src/tests/ecma/Math/15.8.2.9.js
js/src/tests/ecma/Math/15.8.2.9.js
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 | |
| 7 /** | |
| 8 File Name: 15.8.2.9.js | |
| 9 ECMA Section: 15.8.2.9 Math.floor(x) | |
| 10 Description: return the greatest number value that is not greater | |
| 11 than the argument and is equal to a mathematical integer. | |
| 12 if the number is already an integer, return the number | |
| 13 itself. special cases: | |
| 14 - if x is NaN return NaN | |
| 15 - if x = +0 return +0 | |
| 16 - if x = -0 return -0 | |
| 17 - if x = Infinity return Infinity | |
| 18 - if x = -Infinity return -Infinity | |
| 19 - if ( -1 < x < 0 ) return -0 | |
| 20 also: | |
| 21 - the value of Math.floor(x) == -Math.ceil(-x) | |
| 22 Author: christine@netscape.com | |
| 23 Date: 7 july 1997 | |
| 24 */ | |
| 25 | |
| 26 var SECTION = "15.8.2.9"; | |
| 27 var VERSION = "ECMA_1"; | |
| 28 startTest(); | |
| 29 var TITLE = "Math.floor(x)"; | |
| 30 | |
| 31 writeHeaderToLog( SECTION + " "+ TITLE); | |
| 32 | |
| 33 new TestCase( SECTION, | |
| 34 "Math.floor.length", | |
| 35 1, | |
| 36 Math.floor.length ); | |
| 37 | |
| 38 new TestCase( SECTION, | |
| 39 "Math.floor()", | |
| 40 Number.NaN, | |
| 41 Math.floor() ); | |
| 42 | |
| 43 new TestCase( SECTION, | |
| 44 "Math.floor(void 0)", | |
| 45 Number.NaN, | |
| 46 Math.floor(void 0) ); | |
| 47 | |
| 48 new TestCase( SECTION, | |
| 49 "Math.floor(null)", | |
| 50 0, | |
| 51 Math.floor(null) ); | |
| 52 | |
| 53 new TestCase( SECTION, | |
| 54 "Math.floor(true)", | |
| 55 1, | |
| 56 Math.floor(true) ); | |
| 57 | |
| 58 new TestCase( SECTION, | |
| 59 "Math.floor(false)", | |
| 60 0, | |
| 61 Math.floor(false) ); | |
| 62 | |
| 63 new TestCase( SECTION, | |
| 64 "Math.floor('1.1')", | |
| 65 1, | |
| 66 Math.floor("1.1") ); | |
| 67 | |
| 68 new TestCase( SECTION, | |
| 69 "Math.floor('-1.1')", | |
| 70 -2, | |
| 71 Math.floor("-1.1") ); | |
| 72 | |
| 73 new TestCase( SECTION, | |
| 74 "Math.floor('0.1')", | |
| 75 0, | |
| 76 Math.floor("0.1") ); | |
| 77 | |
| 78 new TestCase( SECTION, | |
| 79 "Math.floor('-0.1')", | |
| 80 -1, | |
| 81 Math.floor("-0.1") ); | |
| 82 | |
| 83 new TestCase( SECTION, | |
| 84 "Math.floor(NaN)", | |
| 85 Number.NaN, | |
| 86 Math.floor(Number.NaN) ); | |
| 87 | |
| 88 new TestCase( SECTION, | |
| 89 "Math.floor(NaN)==-Math.ceil(-NaN)", | |
| 90 false, | |
| 91 Math.floor(Number.NaN) == -Math.ceil(-Number.NaN) ); | |
| 92 | |
| 93 new TestCase( SECTION, | |
| 94 "Math.floor(0)", | |
| 95 0, | |
| 96 Math.floor(0) ); | |
| 97 | |
| 98 new TestCase( SECTION, | |
| 99 "Math.floor(0)==-Math.ceil(-0)", | |
| 100 true, | |
| 101 Math.floor(0) == -Math.ceil(-0) ); | |
| 102 | |
| 103 new TestCase( SECTION, | |
| 104 "Math.floor(-0)", | |
| 105 -0, | |
| 106 Math.floor(-0) ); | |
| 107 | |
| 108 new TestCase( SECTION, | |
| 109 "Infinity/Math.floor(-0)", | |
| 110 -Infinity, | |
| 111 Infinity/Math.floor(-0) ); | |
| 112 | |
| 113 new TestCase( SECTION, | |
| 114 "Math.floor(-0)==-Math.ceil(0)", | |
| 115 true, | |
| 116 Math.floor(-0)== -Math.ceil(0) ); | |
| 117 | |
| 118 new TestCase( SECTION, | |
| 119 "Math.floor(Infinity)", | |
| 120 Number.POSITIVE_INFINITY, | |
| 121 Math.floor(Number.POSITIVE_INFINITY) ); | |
| 122 | |
| 123 new TestCase( SECTION, | |
| 124 "Math.floor(Infinity)==-Math.ceil(-Infinity)", | |
| 125 true, | |
| 126 Math.floor(Number.POSITIVE_INFINITY) == -Math.ceil(Number.NEGATIVE_INFINITY) ); | |
| 127 | |
| 128 new TestCase( SECTION, | |
| 129 "Math.floor(-Infinity)", | |
| 130 Number.NEGATIVE_INFINITY, | |
| 131 Math.floor(Number.NEGATIVE_INFINITY) ); | |
| 132 | |
| 133 new TestCase( SECTION, | |
| 134 "Math.floor(-Infinity)==-Math.ceil(Infinity)", | |
| 135 true, | |
| 136 Math.floor(Number.NEGATIVE_INFINITY) == -Math.ceil(Number.POSITIVE_INFINITY) ); | |
| 137 | |
| 138 new TestCase( SECTION, | |
| 139 "Math.floor(0.0000001)", | |
| 140 0, | |
| 141 Math.floor(0.0000001) ); | |
| 142 | |
| 143 new TestCase( SECTION, | |
| 144 "Math.floor(0.0000001)==-Math.ceil(0.0000001)", true, | |
| 145 Math.floor(0.0000001)==-Math.ceil(-0.0000001) ); | |
| 146 | |
| 147 new TestCase( SECTION, | |
| 148 "Math.floor(-0.0000001)", | |
| 149 -1, | |
| 150 Math.floor(-0.0000001) ); | |
| 151 | |
| 152 new TestCase( SECTION, | |
| 153 "Math.floor(0.0000001)==-Math.ceil(0.0000001)", | |
| 154 true, | |
| 155 Math.floor(-0.0000001)==-Math.ceil(0.0000001) ); | |
| 156 | |
| 157 test(); |
