215f3d481d9a2375225731a02867a7b9c0d96bd9
[WebKit-https.git] / LayoutTests / fast / js / resources / number-tofixed.js
1 description(
2     'This test checks a few Number.toFixed cases, including ' +
3     '<a href="http://bugzilla.opendarwin.org/show_bug.cgi?id=5307">5307: Number.toFixed does not round 0.5 up</a>' +
4     ' and ' +
5     '<a href="http://bugzilla.opendarwin.org/show_bug.cgi?id=5308">5308: Number.toFixed does not include leading zero</a>' +
6     '.');
7
8 shouldBe("(0).toFixed(0)", "'0'");
9
10 shouldBe("(0.49).toFixed(0)", "'0'");
11 shouldBe("(0.5).toFixed(0)", "'1'");
12 shouldBe("(0.51).toFixed(0)", "'1'");
13
14 shouldBe("(-0.49).toFixed(0)", "'-0'");
15 shouldBe("(-0.5).toFixed(0)", "'-1'");
16 shouldBe("(-0.51).toFixed(0)", "'-1'");
17
18 shouldBe("(0).toFixed(1)", "'0.0'");
19
20 shouldBe("(0.449).toFixed(1)", "'0.4'");
21 shouldBe("(0.45).toFixed(1)", "'0.5'");
22 shouldBe("(0.451).toFixed(1)", "'0.5'");
23 shouldBe("(0.5).toFixed(1)", "'0.5'");
24 shouldBe("(0.549).toFixed(1)", "'0.5'");
25 shouldBe("(0.55).toFixed(1)", "'0.6'");
26 shouldBe("(0.551).toFixed(1)", "'0.6'");
27
28 shouldBe("(-0.449).toFixed(1)", "'-0.4'");
29 shouldBe("(-0.45).toFixed(1)", "'-0.5'");
30 shouldBe("(-0.451).toFixed(1)", "'-0.5'");
31 shouldBe("(-0.5).toFixed(1)", "'-0.5'");
32 shouldBe("(-0.549).toFixed(1)", "'-0.5'");
33 shouldBe("(-0.55).toFixed(1)", "'-0.6'");
34 shouldBe("(-0.551).toFixed(1)", "'-0.6'");
35
36 var posInf = 1/0;
37 var negInf = -1/0;
38 var nan = 0/0;
39
40 // From Acid3, http://bugs.webkit.org/show_bug.cgi?id=16640
41 shouldBeEqualToString("(0.0).toFixed(4)", "0.0000");
42 shouldBeEqualToString("(-0.0).toFixed(4)", "0.0000");
43 shouldBeEqualToString("(0.0).toFixed()", "0");
44 shouldBeEqualToString("(-0.0).toFixed()", "0");
45
46 // From http://bugs.webkit.org/show_bug.cgi?id=5258
47 shouldBeEqualToString("(1234.567).toFixed()", "1235");
48 shouldBeEqualToString("(1234.567).toFixed(0)", "1235");
49 // 0 equivilents
50 shouldBeEqualToString("(1234.567).toFixed(null)", "1235");
51 shouldBeEqualToString("(1234.567).toFixed(false)", "1235");
52 shouldBeEqualToString("(1234.567).toFixed('foo')", "1235");
53 shouldBeEqualToString("(1234.567).toFixed(nan)", "1235"); // nan is treated like 0
54
55 shouldBeEqualToString("(1234.567).toFixed(1)", "1234.6");
56 shouldBeEqualToString("(1234.567).toFixed(true)", "1234.6"); // just like 1
57 shouldBeEqualToString("(1234.567).toFixed('1')", "1234.6"); // just like 1
58
59 shouldBeEqualToString("(1234.567).toFixed(2)", "1234.57");
60 shouldBeEqualToString("(1234.567).toFixed(5)", "1234.56700");
61 shouldBeEqualToString("(1234.567).toFixed(20)", "1234.56700000000000727596");
62
63 // SpiderMonkey allows precision values -20 to 100, we only allow 0 to 20 currently
64 shouldBeEqualToString("(1234.567).toFixed(21)", "1234.567000000000007275958");
65 shouldBeEqualToString("(1234.567).toFixed(100)", "1234.5670000000000072759576141834259033203125000000000000000000000000000000000000000000000000000000000000");
66 shouldThrow("(1234.567).toFixed(101)");
67 shouldBeEqualToString("(1234.567).toFixed(-1)", "1230");
68 shouldBeEqualToString("(1234.567).toFixed(-4)", "0");
69 shouldBeEqualToString("(1234.567).toFixed(-5)", "0");
70 shouldBeEqualToString("(1234.567).toFixed(-20)", "0");
71 shouldThrow("(1234.567).toFixed(-21)");
72
73 shouldThrow("(1234.567).toFixed(posInf)");
74 shouldThrow("(1234.567).toFixed(negInf)");
75
76 shouldBeEqualToString("posInf.toFixed()", "Infinity");
77 shouldBeEqualToString("negInf.toFixed()", "-Infinity");
78 shouldBeEqualToString("nan.toFixed()", "NaN");
79
80 var successfullyParsed = true;