smi-negative-zero.js revision a7e24c173cf37484693b9abb38e494fa7bd7baeb 
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27
28// Ensure that operations on small integers handle -0.
29
30var zero = 0;
31var one = 1;
32var minus_one = -1;
33var two = 2;
34var four = 4;
35var minus_two = -2;
36var minus_four = -4;
37
38// variable op variable
39
40assertEquals(one / (-zero), -Infinity, "one / -0 I");
41
42assertEquals(one / (zero * minus_one), -Infinity, "one / -1");
43assertEquals(one / (minus_one * zero), -Infinity, "one / -0 II");
44assertEquals(one / (zero * zero), Infinity, "one / 0 I");
45assertEquals(one / (minus_one * minus_one), 1, "one / 1");
46
47assertEquals(one / (zero / minus_one), -Infinity, "one / -0 III");
48assertEquals(one / (zero / one), Infinity, "one / 0 II");
49
50assertEquals(one / (minus_four % two), -Infinity, "foo1");
51assertEquals(one / (minus_four % minus_two), -Infinity, "foo2");
52assertEquals(one / (four % two), Infinity, "foo3");
53assertEquals(one / (four % minus_two), Infinity, "foo4");
54
55// literal op variable
56
57assertEquals(one / (0 * minus_one), -Infinity, "bar1");
58assertEquals(one / (-1 * zero), -Infinity, "bar2");
59assertEquals(one / (0 * zero), Infinity, "bar3");
60assertEquals(one / (-1 * minus_one), 1, "bar4");
61
62assertEquals(one / (0 / minus_one), -Infinity, "baz1");
63assertEquals(one / (0 / one), Infinity, "baz2");
64
65assertEquals(one / (-4 % two), -Infinity, "baz3");
66assertEquals(one / (-4 % minus_two), -Infinity, "baz4");
67assertEquals(one / (4 % two), Infinity, "baz5");
68assertEquals(one / (4 % minus_two), Infinity, "baz6");
69
70// variable op literal
71
72assertEquals(one / (zero * -1), -Infinity, "fizz1");
73assertEquals(one / (minus_one * 0), -Infinity, "fizz2");
74assertEquals(one / (zero * 0), Infinity, "fizz3");
75assertEquals(one / (minus_one * -1), 1, "fizz4");
76
77assertEquals(one / (zero / -1), -Infinity, "buzz1");
78assertEquals(one / (zero / 1), Infinity, "buzz2");
79
80assertEquals(one / (minus_four % 2), -Infinity, "buzz3");
81assertEquals(one / (minus_four % -2), -Infinity, "buzz4");
82assertEquals(one / (four % 2), Infinity, "buzz5");
83assertEquals(one / (four % -2), Infinity, "buzz6");
84
85// literal op literal
86
87assertEquals(one / (-0), -Infinity, "fisk1");
88
89assertEquals(one / (0 * -1), -Infinity, "fisk2");
90assertEquals(one / (-1 * 0), -Infinity, "fisk3");
91assertEquals(one / (0 * 0), Infinity, "fisk4");
92assertEquals(one / (-1 * -1), 1, "fisk5");
93
94assertEquals(one / (0 / -1), -Infinity, "hest1");
95assertEquals(one / (0 / 1), Infinity, "hest2");
96
97assertEquals(one / (-4 % 2), -Infinity, "fiskhest1");
98assertEquals(one / (-4 % -2), -Infinity, "fiskhest2");
99assertEquals(one / (4 % 2), Infinity, "fiskhest3");
100assertEquals(one / (4 % -2), Infinity, "fiskhest4");
101