math-round.js revision 4515c472dc3e5ed2448a564600976759e569a0a8
1// Copyright 2010 the V8 project authors. All rights reserved.
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3// modification, are permitted provided that the following conditions are
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27
28assertEquals(0, Math.round(0));
29assertEquals(-0, Math.round(-0));
30assertEquals(Infinity, Math.round(Infinity));
31assertEquals(-Infinity, Math.round(-Infinity));
32assertNaN(Math.round(NaN));
33
34assertEquals(1, Math.round(0.5));
35assertEquals(1, Math.round(0.7));
36assertEquals(1, Math.round(1));
37assertEquals(1, Math.round(1.1));
38assertEquals(1, Math.round(1.49999));
39assertEquals(1/-0, 1/Math.round(-0.5));  // Test for -0 result.
40assertEquals(-1, Math.round(-0.5000000000000001));
41assertEquals(-1, Math.round(-0.7));
42assertEquals(-1, Math.round(-1));
43assertEquals(-1, Math.round(-1.1));
44assertEquals(-1, Math.round(-1.49999));
45assertEquals(-1, Math.round(-1.5));
46
47assertEquals(9007199254740990, Math.round(9007199254740990));
48assertEquals(9007199254740991, Math.round(9007199254740991));
49assertEquals(-9007199254740990, Math.round(-9007199254740990));
50assertEquals(-9007199254740991, Math.round(-9007199254740991));
51assertEquals(Number.MAX_VALUE, Math.round(Number.MAX_VALUE));
52assertEquals(-Number.MAX_VALUE, Math.round(-Number.MAX_VALUE));
53