parse-int-float.js revision a7e24c173cf37484693b9abb38e494fa7bd7baeb 
1// Copyright 2008 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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5//
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27
28assertEquals(0, parseInt('0'));
29assertEquals(0, parseInt(' 0'));
30assertEquals(0, parseInt(' 0 '));
31
32assertEquals(63, parseInt('077'));
33assertEquals(63, parseInt('  077'));
34assertEquals(63, parseInt('  077   '));
35assertEquals(-63, parseInt('  -077'));
36
37assertEquals(3, parseInt('11', 2));
38assertEquals(4, parseInt('11', 3));
39
40assertEquals(0x12, parseInt('0x12'));
41assertEquals(0x12, parseInt('0x12', 16));
42
43assertEquals(12, parseInt('12aaa'));
44
45assertEquals(0.1, parseFloat('0.1'));
46assertEquals(0.1, parseFloat('0.1aaa'));
47assertEquals(0, parseFloat('0x12'));
48assertEquals(77, parseFloat('077'));
49
50
51var i;
52var y = 10;
53
54for (i = 1; i < 21; i++) {
55  var x = eval("1.2e" + i);
56  assertEquals(Math.floor(x), parseInt(x));
57  x = eval("1e" + i);
58  assertEquals(x, y);
59  y *= 10;
60  assertEquals(Math.floor(x), parseInt(x));
61  x = eval("-1e" + i);
62  assertEquals(Math.ceil(x), parseInt(x));
63  x = eval("-1.2e" + i);
64  assertEquals(Math.ceil(x), parseInt(x));
65}
66
67for (i = 21; i < 53; i++) {
68  var x = eval("1e" + i);
69  assertEquals(1, parseInt(x));
70  x = eval("-1e" + i);
71  assertEquals(-1, parseInt(x));
72}
73
74assertTrue(isNaN(parseInt(0/0)));
75assertTrue(isNaN(parseInt(1/0)), "parseInt Infinity");
76assertTrue(isNaN(parseInt(-1/0)), "parseInt -Infinity");
77
78assertTrue(isNaN(parseFloat(0/0)));
79assertEquals(Infinity, parseFloat(1/0), "parseFloat Infinity");
80assertEquals(-Infinity, parseFloat(-1/0), "parseFloat -Infinity");
81
82
83