1// Copyright 2013 the V8 project authors. All rights reserved. 2// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions 6// are met: 7// 1. Redistributions of source code must retain the above copyright 8// notice, this list of conditions and the following disclaimer. 9// 2. Redistributions in binary form must reproduce the above copyright 10// notice, this list of conditions and the following disclaimer in the 11// documentation and/or other materials provided with the distribution. 12// 13// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 24description( 25 26"This test checks the behavior of the Math object as described in 15.8 of the language specification." 27 28); 29 30shouldBe("Math.abs(NaN)", "NaN"); 31shouldBe("Math.abs(0)", "0"); 32shouldBe("Math.abs(-0)", "0"); 33shouldBe("Math.abs(1)", "1"); 34shouldBe("Math.abs(-1)", "1"); 35shouldBe("Math.abs(Number.MIN_VALUE)", "Number.MIN_VALUE"); 36shouldBe("Math.abs(-Number.MIN_VALUE)", "Number.MIN_VALUE"); 37shouldBe("Math.abs(Number.MAX_VALUE)", "Number.MAX_VALUE"); 38shouldBe("Math.abs(-Number.MAX_VALUE)", "Number.MAX_VALUE"); 39shouldBe("Math.abs(Infinity)", "Infinity"); 40shouldBe("Math.abs(-Infinity)", "Infinity"); 41 42shouldBe("Math.acos(NaN)", "NaN"); 43shouldBe("Math.acos(-0)", "Math.acos(0)"); 44shouldBe("Math.acos(1)", "0"); 45shouldBe("Math.acos(1.1)", "NaN"); 46shouldBe("Math.acos(-1.1)", "NaN"); 47shouldBe("Math.acos(Infinity)", "NaN"); 48shouldBe("Math.acos(-Infinity)", "NaN"); 49 50shouldBe("Math.asin(NaN)", "NaN"); 51shouldBe("Math.asin(0)", "0"); 52shouldBe("Math.asin(-0)", "-0"); 53shouldBe("Math.asin(1)", "-Math.asin(-1)"); 54shouldBe("Math.asin(1.1)", "NaN"); 55shouldBe("Math.asin(-1.1)", "NaN"); 56shouldBe("Math.asin(Infinity)", "NaN"); 57shouldBe("Math.asin(-Infinity)", "NaN"); 58 59shouldBe("Math.atan(NaN)", "NaN"); 60shouldBe("Math.atan(0)", "0"); 61shouldBe("Math.atan(-0)", "-0"); 62shouldBe("Math.atan(Infinity)", "-Math.atan(-Infinity)"); 63 64shouldBe("Math.atan2(NaN, NaN)", "NaN"); 65shouldBe("Math.atan2(NaN, 0)", "NaN"); 66shouldBe("Math.atan2(NaN, -0)", "NaN"); 67shouldBe("Math.atan2(NaN, 1)", "NaN"); 68shouldBe("Math.atan2(NaN, Infinity)", "NaN"); 69shouldBe("Math.atan2(NaN, -Infinity)", "NaN"); 70shouldBe("Math.atan2(0, NaN)", "NaN"); 71shouldBe("Math.atan2(-0, NaN)", "NaN"); 72shouldBe("Math.atan2(1, NaN)", "NaN"); 73shouldBe("Math.atan2(Infinity, NaN)", "NaN"); 74shouldBe("Math.atan2(-Infinity, NaN)", "NaN"); 75 76// Regression test for Bug 26978 (https://bugs.webkit.org/show_bug.cgi?id=26978) 77var testStr = ""; 78var v = { valueOf: function() { testStr += "one"; return 1; } }; 79var w = { valueOf: function() { testStr += "two"; return 2; } }; 80Math.atan2(v, w); 81shouldBe('testStr', '\"onetwo\"'); 82 83/* 84• Ify>0andxis+0, theresult isanimplementation-dependent approximationto +π/2. 85• Ify>0andxis−0, theresult isanimplementation-dependent approximationto +π/2. 86• Ifyis+0andx>0, theresult is+0. 87• Ifyis+0andxis+0, theresult is+0. 88• Ifyis+0andxis−0, theresult isanimplementation-dependent approximationto +π. 89• Ifyis+0andx<0, theresult isanimplementation-dependent approximationto +π. 90• Ifyis−0andx>0, theresult is−0. 91• Ifyis−0andxis+0, theresult is−0. 92• Ifyis−0andxis−0, theresult isanimplementation-dependent approximationto −π. 93• Ifyis−0andx<0, theresult isanimplementation-dependent approximationto −π. 94• Ify<0andxis+0, theresult isanimplementation-dependent approximationto −π/2. 95• Ify<0andxis−0, theresult isanimplementation-dependent approximationto −π/2. 96• Ify>0andyisfiniteandxis+∞, theresult is+0. 97• Ify>0andyisfiniteandxis−∞, theresult ifanimplementation-dependent approximationto +π. 98• Ify<0andyisfiniteandxis+∞, theresult is−0. 99• Ify<0andyisfiniteandxis−∞, theresult isanimplementation-dependent approximationto−π. 100• Ifyis+∞andxisfinite, theresult isanimplementation-dependent approximationto +π/2. 101• Ifyis−∞andxisfinite, theresult isanimplementation-dependent approximationto −π/2. 102• Ifyis+∞andxis+∞, theresult isanimplementation-dependent approximationto +π/4. 103• Ifyis+∞andxis−∞, theresult isanimplementation-dependent approximationto +3π/4. 104• Ifyis−∞andxis+∞, theresult isanimplementation-dependent approximationto −π/4. 105• Ifyis−∞andxis−∞, theresult isanimplementation-dependent approximationto −3π/4. 106*/ 107 108shouldBe("Math.ceil(NaN)", "NaN"); 109shouldBe("Math.ceil(0)", "0"); 110shouldBe("Math.ceil(-0)", "-0"); 111shouldBe("Math.ceil(-0.5)", "-0"); 112shouldBe("Math.ceil(1)", "1"); 113shouldBe("Math.ceil(-1)", "-1"); 114shouldBe("Math.ceil(1.1)", "2"); 115shouldBe("Math.ceil(-1.1)", "-1"); 116shouldBe("Math.ceil(Number.MIN_VALUE)", "1"); 117shouldBe("Math.ceil(-Number.MIN_VALUE)", "-0"); 118shouldBe("Math.ceil(Number.MAX_VALUE)", "Number.MAX_VALUE"); 119shouldBe("Math.ceil(-Number.MAX_VALUE)", "-Number.MAX_VALUE"); 120shouldBe("Math.ceil(Infinity)", "Infinity"); 121shouldBe("Math.ceil(-Infinity)", "-Infinity"); 122 123shouldBe("Math.cos(NaN)", "NaN"); 124shouldBe("Math.cos(0)", "1"); 125shouldBe("Math.cos(-0)", "1"); 126shouldBe("Math.cos(Infinity)", "NaN"); 127shouldBe("Math.cos(-Infinity)", "NaN"); 128 129shouldBe("Math.exp(NaN)", "NaN"); 130shouldBe("Math.exp(0)", "1"); 131shouldBe("Math.exp(-0)", "1"); 132shouldBe("Math.exp(Infinity)", "Infinity"); 133shouldBe("Math.exp(-Infinity)", "0"); 134 135shouldBe("Math.floor(NaN)", "NaN"); 136shouldBe("Math.floor(0)", "0"); 137shouldBe("Math.floor(-0)", "-0"); 138shouldBe("Math.floor(0.5)", "0"); 139shouldBe("Math.floor(1)", "1"); 140shouldBe("Math.floor(-1)", "-1"); 141shouldBe("Math.floor(1.1)", "1"); 142shouldBe("Math.floor(-1.1)", "-2"); 143shouldBe("Math.floor(Number.MIN_VALUE)", "0"); 144shouldBe("Math.floor(-Number.MIN_VALUE)", "-1"); 145shouldBe("Math.floor(Number.MAX_VALUE)", "Number.MAX_VALUE"); 146shouldBe("Math.floor(-Number.MAX_VALUE)", "-Number.MAX_VALUE"); 147shouldBe("Math.floor(Infinity)", "Infinity"); 148shouldBe("Math.floor(-Infinity)", "-Infinity"); 149 150shouldBe("Math.log(NaN)", "NaN"); 151shouldBe("Math.log(0)", "-Infinity"); 152shouldBe("Math.log(-0)", "-Infinity"); 153shouldBe("Math.log(1)", "0"); 154shouldBe("Math.log(-1)", "NaN"); 155shouldBe("Math.log(-1.1)", "NaN"); 156shouldBe("Math.log(Infinity)", "Infinity"); 157shouldBe("Math.log(-Infinity)", "NaN"); 158 159shouldBe("Math.max()", "-Infinity"); 160shouldBe("Math.max(NaN)", "NaN"); 161shouldBe("Math.max(NaN,1)", "NaN"); 162shouldBe("Math.max(0)", "0"); 163shouldBe("Math.max(-0)", "-0"); 164shouldBe("Math.max(-0, 0)", "0"); 165 166shouldBe("Math.min()", "Infinity"); 167shouldBe("Math.min(NaN)", "NaN"); 168shouldBe("Math.min(NaN,1)", "NaN"); 169shouldBe("Math.min(0)", "0"); 170shouldBe("Math.min(-0)", "-0"); 171shouldBe("Math.min(-0, 0)", "-0"); 172 173shouldBe("Math.pow(NaN, NaN)", "NaN"); 174shouldBe("Math.pow(NaN, 0)", "1"); 175shouldBe("Math.pow(NaN, -0)", "1"); 176shouldBe("Math.pow(NaN, 1)", "NaN"); 177shouldBe("Math.pow(NaN, Infinity)", "NaN"); 178shouldBe("Math.pow(NaN, -Infinity)", "NaN"); 179shouldBe("Math.pow(0, NaN)", "NaN"); 180shouldBe("Math.pow(-0, NaN)", "NaN"); 181shouldBe("Math.pow(1, NaN)", "NaN"); 182shouldBe("Math.pow(Infinity, NaN)", "NaN"); 183shouldBe("Math.pow(-Infinity, NaN)", "NaN"); 184 185/* 186• Ifabs(x)>1andyis+∞, theresult is+∞. 187• Ifabs(x)>1andyis−∞, theresult is+0. 188• Ifabs(x)==1andyis+∞, theresult isNaN. 189• Ifabs(x)==1andyis−∞, theresult isNaN. 190• Ifabs(x)<1andyis+∞, theresult is+0. 191• Ifabs(x)<1andyis−∞, theresult is+∞. 192• Ifxis+∞andy>0, theresult is+∞. 193• Ifxis+∞andy<0, theresult is+0. 194• Ifxis−∞andy>0andyisanoddinteger, theresult is−∞. 195• Ifxis−∞andy>0andyisnot anoddinteger, theresult is+∞. 196• Ifxis−∞andy<0andyisanoddinteger, theresult is−0. 197• Ifxis−∞andy<0andyisnot anoddinteger, theresult is+0. 198• Ifxis+0andy>0, theresult is+0. 199• Ifxis+0andy<0, theresult is+∞. 200• Ifxis−0andy>0andyisanoddinteger, theresult is−0. 201• Ifxis−0andy>0andyisnot anoddinteger, theresult is+0. 202• Ifxis−0andy<0andyisanoddinteger, theresult is−∞. 203• Ifxis−0andy<0andyisnot anoddinteger, theresult is+∞. 204• Ifx<0andxisfiniteandyisfiniteandyisnot aninteger, theresult isNaN. 205*/ 206 207shouldBe("Math.round(NaN)", "NaN"); 208shouldBe("Math.round(0)", "0"); 209shouldBe("Math.round(-0)", "-0"); 210shouldBe("Math.round(0.4)", "0"); 211shouldBe("Math.round(-0.4)", "-0"); 212shouldBe("Math.round(0.5)", "1"); 213shouldBe("Math.round(-0.5)", "-0"); 214shouldBe("Math.round(0.6)", "1"); 215shouldBe("Math.round(-0.6)", "-1"); 216shouldBe("Math.round(1)", "1"); 217shouldBe("Math.round(-1)", "-1"); 218shouldBe("Math.round(1.1)", "1"); 219shouldBe("Math.round(-1.1)", "-1"); 220shouldBe("Math.round(1.5)", "2"); 221shouldBe("Math.round(-1.5)", "-1"); 222shouldBe("Math.round(1.6)", "2"); 223shouldBe("Math.round(-1.6)", "-2"); 224shouldBe("Math.round(8640000000000000)", "8640000000000000"); 225// The following is expected. Double can't represent .5 in this case. 226shouldBe("Math.round(8640000000000000.5)", "8640000000000000"); 227shouldBe("Math.round(8640000000000001)", "8640000000000001"); 228shouldBe("Math.round(8640000000000002)", "8640000000000002"); 229shouldBe("Math.round(9007199254740990)", "9007199254740990"); 230shouldBe("Math.round(9007199254740991)", "9007199254740991"); 231shouldBe("Math.round(1.7976931348623157e+308)", "1.7976931348623157e+308"); 232shouldBe("Math.round(-8640000000000000)", "-8640000000000000"); 233shouldBe("Math.round(-8640000000000001)", "-8640000000000001"); 234shouldBe("Math.round(-8640000000000002)", "-8640000000000002"); 235shouldBe("Math.round(-9007199254740990)", "-9007199254740990"); 236shouldBe("Math.round(-9007199254740991)", "-9007199254740991"); 237shouldBe("Math.round(-1.7976931348623157e+308)", "-1.7976931348623157e+308"); 238shouldBe("Math.round(Infinity)", "Infinity"); 239shouldBe("Math.round(-Infinity)", "-Infinity"); 240 241shouldBe("Math.sin(NaN)", "NaN"); 242shouldBe("Math.sin(0)", "0"); 243shouldBe("Math.sin(-0)", "-0"); 244shouldBe("Math.sin(Infinity)", "NaN"); 245shouldBe("Math.sin(-Infinity)", "NaN"); 246 247shouldBe("Math.sqrt(NaN)", "NaN"); 248shouldBe("Math.sqrt(0)", "0"); 249shouldBe("Math.sqrt(-0)", "-0"); 250shouldBe("Math.sqrt(1)", "1"); 251shouldBe("Math.sqrt(-1)", "NaN"); 252shouldBe("Math.sqrt(Infinity)", "Infinity"); 253shouldBe("Math.sqrt(-Infinity)", "NaN"); 254 255shouldBe("Math.tan(NaN)", "NaN"); 256shouldBe("Math.tan(0)", "0"); 257shouldBe("Math.tan(-0)", "-0"); 258shouldBe("Math.tan(Infinity)", "NaN"); 259shouldBe("Math.tan(-Infinity)", "NaN"); 260 261var __Math = Math; 262shouldBeTrue("delete Math;"); 263 264function global() { return this; } 265shouldBeFalse("'Math' in global()"); 266 267Math = __Math; 268