1// Copyright 2012 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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8//     * Redistributions in binary form must reproduce the above
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13//       contributors may be used to endorse or promote products derived
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15//
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26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
28// Test number predicates that Harmony adds to the Number constructor:
29// isFinite(), isNaN(), isInteger(), isSafeInteger().
30
31assertTrue(Number.isFinite(0));
32assertTrue(Number.isFinite(Number.MIN_VALUE));
33assertTrue(Number.isFinite(Number.MAX_VALUE));
34assertTrue(Number.isFinite(Number.MIN_SAFE_INTEGER));
35assertTrue(Number.isFinite(Number.MIN_SAFE_INTEGER - 13));
36assertTrue(Number.isFinite(Number.MAX_SAFE_INTEGER));
37assertTrue(Number.isFinite(Number.MAX_SAFE_INTEGER + 23));
38assertFalse(Number.isFinite(Number.NaN));
39assertFalse(Number.isFinite(Number.POSITIVE_INFINITY));
40assertFalse(Number.isFinite(Number.NEGATIVE_INFINITY));
41assertFalse(Number.isFinite(new Number(0)));
42assertFalse(Number.isFinite(1/0));
43assertFalse(Number.isFinite(-1/0));
44assertFalse(Number.isFinite({}));
45assertFalse(Number.isFinite([]));
46assertFalse(Number.isFinite("s"));
47assertFalse(Number.isFinite(null));
48assertFalse(Number.isFinite(undefined));
49
50assertFalse(Number.isNaN(0));
51assertFalse(Number.isNaN(Number.MIN_VALUE));
52assertFalse(Number.isNaN(Number.MAX_VALUE));
53assertFalse(Number.isNaN(Number.MIN_SAFE_INTEGER - 13));
54assertFalse(Number.isNaN(Number.MAX_SAFE_INTEGER + 23));
55assertTrue(Number.isNaN(Number.NaN));
56assertFalse(Number.isNaN(Number.POSITIVE_INFINITY));
57assertFalse(Number.isNaN(Number.NEGATIVE_INFINITY));
58assertFalse(Number.isNaN(Number.EPSILON));
59assertFalse(Number.isNaN(new Number(0)));
60assertFalse(Number.isNaN(1/0));
61assertFalse(Number.isNaN(-1/0));
62assertFalse(Number.isNaN({}));
63assertFalse(Number.isNaN([]));
64assertFalse(Number.isNaN("s"));
65assertFalse(Number.isNaN(null));
66assertFalse(Number.isNaN(undefined));
67
68assertFalse(Number.isInteger({}));
69assertFalse(Number.isInteger([]));
70assertFalse(Number.isInteger("s"));
71assertFalse(Number.isInteger(null));
72assertFalse(Number.isInteger(undefined));
73assertFalse(Number.isInteger(new Number(2)));
74assertTrue(Number.isInteger(0));
75assertFalse(Number.isInteger(Number.MIN_VALUE));
76assertTrue(Number.isInteger(Number.MAX_VALUE));
77assertTrue(Number.isInteger(Number.MIN_SAFE_INTEGER));
78assertTrue(Number.isInteger(Number.MIN_SAFE_INTEGER - 13));
79assertTrue(Number.isInteger(Number.MAX_SAFE_INTEGER));
80assertTrue(Number.isInteger(Number.MAX_SAFE_INTEGER + 23));
81assertFalse(Number.isInteger(Number.NaN));
82assertFalse(Number.isInteger(Number.POSITIVE_INFINITY));
83assertFalse(Number.isInteger(Number.NEGATIVE_INFINITY));
84assertFalse(Number.isInteger(1/0));
85assertFalse(Number.isInteger(-1/0));
86assertFalse(Number.isInteger(Number.EPSILON));
87
88assertFalse(Number.isSafeInteger({}));
89assertFalse(Number.isSafeInteger([]));
90assertFalse(Number.isSafeInteger("s"));
91assertFalse(Number.isSafeInteger(null));
92assertFalse(Number.isSafeInteger(undefined));
93assertFalse(Number.isSafeInteger(new Number(2)));
94assertTrue(Number.isSafeInteger(0));
95assertTrue(Number.isSafeInteger(Number.MIN_SAFE_INTEGER));
96assertFalse(Number.isSafeInteger(Number.MIN_SAFE_INTEGER - 13));
97assertTrue(Number.isSafeInteger(Number.MIN_SAFE_INTEGER + 13));
98assertTrue(Number.isSafeInteger(Number.MAX_SAFE_INTEGER));
99assertFalse(Number.isSafeInteger(Number.MAX_SAFE_INTEGER + 23));
100assertTrue(Number.isSafeInteger(Number.MAX_SAFE_INTEGER - 23));
101assertFalse(Number.isSafeInteger(Number.MIN_VALUE));
102assertFalse(Number.isSafeInteger(Number.MAX_VALUE));
103assertFalse(Number.isSafeInteger(Number.NaN));
104assertFalse(Number.isSafeInteger(Number.POSITIVE_INFINITY));
105assertFalse(Number.isSafeInteger(Number.NEGATIVE_INFINITY));
106assertFalse(Number.isSafeInteger(1/0));
107assertFalse(Number.isSafeInteger(-1/0));
108assertFalse(Number.isSafeInteger(Number.EPSILON));
109
110var near_upper = Math.pow(2, 52);
111assertTrue(Number.isSafeInteger(near_upper));
112assertFalse(Number.isSafeInteger(2 * near_upper));
113assertTrue(Number.isSafeInteger(2 * near_upper - 1));
114assertTrue(Number.isSafeInteger(2 * near_upper - 2));
115assertFalse(Number.isSafeInteger(2 * near_upper + 1));
116assertFalse(Number.isSafeInteger(2 * near_upper + 2));
117assertFalse(Number.isSafeInteger(2 * near_upper + 7));
118
119var near_lower = -near_upper;
120assertTrue(Number.isSafeInteger(near_lower));
121assertFalse(Number.isSafeInteger(2 * near_lower));
122assertTrue(Number.isSafeInteger(2 * near_lower + 1));
123assertTrue(Number.isSafeInteger(2 * near_lower + 2));
124assertFalse(Number.isSafeInteger(2 * near_lower - 1));
125assertFalse(Number.isSafeInteger(2 * near_lower - 2));
126assertFalse(Number.isSafeInteger(2 * near_lower - 7));
127