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 24var posInf = 1/0; 25var negInf = -1/0; 26var nan = 0/0; 27 28// From Acid3, http://bugs.webkit.org/show_bug.cgi?id=16640 29shouldBeEqualToString("(0.0).toExponential(4)", "0.0000e+0"); 30shouldBeEqualToString("(-0.0).toExponential(4)", "0.0000e+0"); 31shouldBeEqualToString("(0.0).toExponential()", "0e+0"); 32shouldBeEqualToString("(-0.0).toExponential()", "0e+0"); 33// From http://bugs.webkit.org/show_bug.cgi?id=5259 34shouldBeEqualToString("(123.456).toExponential()", "1.23456e+2"); 35shouldBeEqualToString("(123.456).toExponential(0)", "1e+2"); 36// 0 equivilents 37shouldBeEqualToString("(123.456).toExponential(null)", "1e+2"); 38shouldBeEqualToString("(123.456).toExponential(false)", "1e+2"); 39shouldBeEqualToString("(123.456).toExponential('foo')", "1e+2"); 40shouldBeEqualToString("(123.456).toExponential(nan)", "1e+2"); // nan is treated like 0 41 42shouldBeEqualToString("(123.456).toExponential(1)", "1.2e+2"); 43// 1 equivilents 44shouldBeEqualToString("(123.456).toExponential(true)", "1.2e+2"); // just like 1 45shouldBeEqualToString("(123.456).toExponential('1')", "1.2e+2"); 46 47shouldBeEqualToString("(123.456).toExponential(2)", "1.23e+2"); 48shouldBeEqualToString("(123.456).toExponential(2.9)", "1.23e+2"); 49shouldBeEqualToString("(123.456).toExponential(3)", "1.235e+2"); 50shouldBeEqualToString("(123.456).toExponential(5)", "1.23456e+2"); 51shouldBeEqualToString("(123.456).toExponential(6)", "1.234560e+2"); 52shouldBeEqualToString("(123.456).toExponential(20)", "1.23456000000000003070e+2"); 53 54// SpiderMonkey allows precision values 0 to 100, we only allow 0 to 20 currently 55shouldThrow("(123.456).toExponential(21)"); 56shouldThrow("(123.456).toExponential(100)"); 57shouldThrow("(123.456).toExponential(101)"); 58shouldThrow("(123.456).toExponential(-1)"); 59 60shouldThrow("(1234.567).toExponential(posInf)"); 61shouldThrow("(1234.567).toExponential(negInf)"); 62 63shouldBeEqualToString("posInf.toExponential()", "Infinity"); 64shouldBeEqualToString("negInf.toExponential()", "-Infinity"); 65shouldBeEqualToString("nan.toExponential()", "NaN"); 66 67shouldBeEqualToString("(0.01).toExponential()", "1e-2"); 68shouldBeEqualToString("(0.1).toExponential()", "1e-1"); 69shouldBeEqualToString("(0.9).toExponential()", "9e-1"); 70shouldBeEqualToString("(0.9999).toExponential()", "9.999e-1"); 71shouldBeEqualToString("(0.9999).toExponential(2)", "1.00e+0"); 72