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