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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.trunc(0))); | |
31 assertEquals("-Infinity", String(1/Math.trunc(-0))); | |
32 assertEquals("Infinity", String(1/Math.trunc(Math.PI/4))); | |
33 assertEquals("-Infinity", String(1/Math.trunc(-Math.sqrt(2)/2))); | |
34 assertEquals(100, Math.trunc(100)); | |
35 assertEquals(-199, Math.trunc(-199)); | |
36 assertEquals(100, Math.trunc(100.1)); | |
37 assertTrue(isNaN(Math.trunc("abc"))); | |
38 assertTrue(isNaN(Math.trunc({}))); | |
39 assertEquals(0, Math.trunc([])); | |
40 assertEquals(1, Math.trunc([1])); | |
41 assertEquals(-100, Math.trunc([-100.1])); | |
42 assertTrue(isNaN(Math.trunc([1, 1]))); | |
43 assertEquals(-100, Math.trunc({ toString: function() { return "-100.3"; } })); | |
44 assertEquals(10, Math.trunc({ toString: function() { return 10.1; } })); | |
45 assertEquals(-1, Math.trunc({ valueOf: function() { return -1.1; } })); | |
46 assertEquals("-Infinity", | |
47 String(1/Math.trunc({ valueOf: function() { return "-0.1"; } }))); | |
48 assertEquals("-Infinity", String(Math.trunc(-Infinity))); | |
49 assertEquals("Infinity", String(Math.trunc(Infinity))); | |
50 assertEquals("-Infinity", String(Math.trunc("-Infinity"))); | |
51 assertEquals("Infinity", String(Math.trunc("Infinity"))); | |
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