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