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("KDE JS Test"); 25var negativeZero = Math.atan2(-1, Infinity); // ### any nicer way? 26 27function isNegativeZero(n) 28{ 29 return n == 0 && 1 / n < 0; 30} 31 32// self tests 33shouldBeTrue("isNegativeZero(negativeZero)"); 34shouldBeFalse("isNegativeZero(0)"); 35 36// Constants 37shouldBe("String()+Math.E", "'2.718281828459045'"); 38shouldBe("String()+Math.LN2", "'0.6931471805599453'"); 39shouldBe("String()+Math.LN10", "'2.302585092994046'"); 40shouldBe("String()+Math.LOG2E", "'1.4426950408889634'"); 41shouldBe("String()+Math.LOG10E", "'0.4342944819032518'"); 42shouldBe("String()+Math.PI", "'3.141592653589793'"); 43shouldBe("String()+Math.SQRT1_2", "'0.7071067811865476'"); 44shouldBe("String()+Math.SQRT2", "'1.4142135623730951'"); 45 46shouldBe("String()+Number.NaN", "'NaN'"); 47shouldBe("String()+Number.NEGATIVE_INFINITY", "'-Infinity'"); 48shouldBe("String()+Number.POSITIVE_INFINITY", "'Infinity'"); 49 50// Functions 51shouldBe("Math.abs(-5)", "5"); 52shouldBe("Math.acos(0)", "Math.PI/2"); 53shouldBe("Math.acos(1)", "0"); 54shouldBe("Math.ceil(1.1)", "2"); 55shouldBe("String()+Math.sqrt(2)", "String()+Math.SQRT2"); 56shouldBe("Math.ceil(1.6)", "2"); 57shouldBe("Math.round(0)", "0"); 58shouldBeFalse("isNegativeZero(Math.round(0))"); 59shouldBeTrue("isNegativeZero(Math.round(negativeZero))"); 60shouldBe("Math.round(0.2)", "0"); 61shouldBeTrue("isNegativeZero(Math.round(-0.2))"); 62shouldBeTrue("isNegativeZero(Math.round(-0.5))"); 63shouldBe("Math.round(1.1)", "1"); 64shouldBe("Math.round(1.6)", "2"); 65shouldBe("Math.round(-3.5)", "-3"); 66shouldBe("Math.round(-3.6)", "-4"); 67shouldBeTrue("isNaN(Math.round())"); 68shouldBeTrue("isNaN(Math.round(NaN))"); 69shouldBe("Math.round(-Infinity)", "-Infinity"); 70shouldBe("Math.round(Infinity)", "Infinity"); 71shouldBe("Math.round(99999999999999999999.99)", "100000000000000000000"); 72shouldBe("Math.round(-99999999999999999999.99)", "-100000000000000000000"); 73 74// Math.log() 75shouldBe("Math.log(Math.E*Math.E)", "2"); 76shouldBeTrue("isNaN(Math.log(NaN))"); 77shouldBeTrue("isNaN(Math.log(-1))"); 78shouldBeFalse("isFinite(Math.log(0))"); 79shouldBe("Math.log(1)", "0"); 80shouldBeFalse("isFinite(Math.log(Infinity))"); 81 82// Math.min() 83shouldBeTrue("isNegativeZero(Math.min(negativeZero, 0))"); 84 85// Math.max() 86shouldBeFalse("isFinite(Math.max())"); 87shouldBe("Math.max(1)", "1"); // NS 4.x and IE 5.x seem to know about 2 arg version only 88shouldBe("Math.max(1, 2, 3)", "3"); // NS 4.x and IE 5.x seem to know about 2 arg version only 89shouldBeTrue("isNaN(Math.max(1,NaN,3))"); 90shouldBeTrue("!isNegativeZero(Math.max(negativeZero, 0))"); 91 92 93list="" 94for ( var i in Math ) { list += i + ','; } 95shouldBe("list","''"); 96 97var my = new Object; 98my.v = 1; 99 100// Deleting/assigning 101shouldBe("delete my.v", "true") 102shouldBeUndefined("my.v"); 103shouldBe("delete Math.PI", "false") 104function myfunc( num ) { return num+1; } 105shouldBe("my = myfunc, myfunc(4)", "5"); 106 107// Conversions 108shouldBe("Boolean(Math)", "true"); 109shouldBeTrue("isNaN(Number(Math));"); 110 111// Unicity 112shouldBe("Math.abs===Math.abs", "true") 113shouldBe("Math.abs===Math.round", "false") 114 115// Iteration 116obj = new Object; 117obj.a = 1; 118obj.b = 2; 119list="" 120for ( var i in obj ) { list += i + ','; } 121shouldBe("list","'a,b,'"); 122 123// (check that Math's properties and functions are not enumerable) 124list="" 125for ( var i in Math ) { list += i + ','; } 126shouldBe("list","''"); 127 128Math.myprop=true; // adding a custom property to the math object (why not?) 129list="" 130for ( var i in Math ) { list += i + ','; } 131shouldBe("list","'myprop,'"); 132