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1 // Copyright 2013 the V8 project authors. All rights reserved. | |
2 // Redistribution and use in source and binary forms, with or without | |
3 // modification, are permitted provided that the following conditions are | |
4 // met: | |
5 // | |
6 // * Redistributions of source code must retain the above copyright | |
7 // notice, this list of conditions and the following disclaimer. | |
8 // * Redistributions in binary form must reproduce the above | |
9 // copyright notice, this list of conditions and the following | |
10 // disclaimer in the documentation and/or other materials provided | |
11 // with the distribution. | |
12 // * Neither the name of Google Inc. nor the names of its | |
13 // contributors may be used to endorse or promote products derived | |
14 // from this software without specific prior written permission. | |
15 // | |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
27 | |
28 // Flags: --harmony-maths | |
29 | |
30 assertEquals("Infinity", String(1/Math.sign(0))); | |
31 assertEquals("-Infinity", String(1/Math.sign(-0))); | |
32 assertEquals(1, Math.sign(100)); | |
33 assertEquals(-1, Math.sign(-199)); | |
34 assertEquals(1, Math.sign(100.1)); | |
35 assertTrue(isNaN(Math.sign("abc"))); | |
36 assertTrue(isNaN(Math.sign({}))); | |
37 assertEquals(0, Math.sign([])); | |
38 assertEquals(1, Math.sign([1])); | |
39 assertEquals(-1, Math.sign([-100.1])); | |
40 assertTrue(isNaN(Math.sign([1, 1]))); | |
41 assertEquals(1, Math.sign({ toString: function() { return "100"; } })); | |
42 assertEquals(1, Math.sign({ toString: function() { return 100; } })); | |
43 assertEquals(-1, Math.sign({ valueOf: function() { return -1.1; } })); | |
44 assertEquals(-1, Math.sign({ valueOf: function() { return "-1.1"; } })); | |
45 assertEquals(-1, Math.sign(-Infinity)); | |
46 assertEquals(1, Math.sign(Infinity)); | |
47 assertEquals(-1, Math.sign("-Infinity")); | |
48 assertEquals(1, Math.sign("Infinity")); | |
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