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Issue 9113043: Implement Double.{toString, toStringAsExponential, toStringAsPrecision} (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Updated status files. Created 8 years, 9 months ago
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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file.
4 // Test basic integer operations.
5
6 class ToStringAsFixedTest {
7 static void testMain() {
8 Expect.equals("2.000", 2.0.toStringAsFixed(3));
9 Expect.equals("2.100", 2.1.toStringAsFixed(3));
10 Expect.equals("2.120", 2.12.toStringAsFixed(3));
11 Expect.equals("2.123", 2.123.toStringAsFixed(3));
12 Expect.equals("2.124", 2.1239.toStringAsFixed(3));
13 Expect.equals("NaN", (0.0 / 0.0).toStringAsFixed(3));
14 Expect.equals("Infinity", (1.0/0.0).toStringAsFixed(3));
15 Expect.equals("-Infinity", (-1.0/0.0).toStringAsFixed(3));
16 // TODO(floitsch): enable the following test when double.toString does the
17 // right thing.
18 // Expect.equals("1.1111111111111111e+21", 1111111111111111111111.0.toString AsFixed(8));
19 Expect.equals("0.1", 0.1.toStringAsFixed(1));
20 Expect.equals("0.10", 0.1.toStringAsFixed(2));
21 Expect.equals("0.100", 0.1.toStringAsFixed(3));
22 Expect.equals("0.01", 0.01.toStringAsFixed(2));
23 Expect.equals("0.010", 0.01.toStringAsFixed(3));
24 Expect.equals("0.0100", 0.01.toStringAsFixed(4));
25 Expect.equals("0.00", 0.001.toStringAsFixed(2));
26 Expect.equals("0.001", 0.001.toStringAsFixed(3));
27 Expect.equals("0.0010", 0.001.toStringAsFixed(4));
28 Expect.equals("1.0000", 1.0.toStringAsFixed(4));
29 Expect.equals("1.0", 1.0.toStringAsFixed(1));
30 Expect.equals("1", 1.0.toStringAsFixed(0));
31 Expect.equals("12", 12.0.toStringAsFixed(0));
32 Expect.equals("1", 1.1.toStringAsFixed(0));
33 Expect.equals("12", 12.1.toStringAsFixed(0));
34 Expect.equals("1", 1.12.toStringAsFixed(0));
35 Expect.equals("12", 12.12.toStringAsFixed(0));
36 Expect.equals("0.0000006", 0.0000006.toStringAsFixed(7));
37 Expect.equals("0.00000006", 0.00000006.toStringAsFixed(8));
38 Expect.equals("0.000000060", 0.00000006.toStringAsFixed(9));
39 Expect.equals("0.0000000600", 0.00000006.toStringAsFixed(10));
40 Expect.equals("0", 0.0.toStringAsFixed(0));
41 Expect.equals("0.0", 0.0.toStringAsFixed(1));
42 Expect.equals("0.00", 0.0.toStringAsFixed(2));
43
44 // TODO(floitsch): enable the following test when double.toString does the
45 // right thing.
46 // Expect.equals("-1.1111111111111111e+21", (-1111111111111111111111.0).toSt ringAsFixed(8));
47 Expect.equals("-0.1", (-0.1).toStringAsFixed(1));
48 Expect.equals("-0.10", (-0.1).toStringAsFixed(2));
49 Expect.equals("-0.100", (-0.1).toStringAsFixed(3));
50 Expect.equals("-0.01", (-0.01).toStringAsFixed(2));
51 Expect.equals("-0.010", (-0.01).toStringAsFixed(3));
52 Expect.equals("-0.0100", (-0.01).toStringAsFixed(4));
53 Expect.equals("-0.00", (-0.001).toStringAsFixed(2));
54 Expect.equals("-0.001", (-0.001).toStringAsFixed(3));
55 Expect.equals("-0.0010", (-0.001).toStringAsFixed(4));
56 Expect.equals("-1.0000", (-1.0).toStringAsFixed(4));
57 Expect.equals("-1.0", (-1.0).toStringAsFixed(1));
58 Expect.equals("-1", (-1.0).toStringAsFixed(0));
59 Expect.equals("-1", (-1.1).toStringAsFixed(0));
60 Expect.equals("-12", (-12.1).toStringAsFixed(0));
61 Expect.equals("-1", (-1.12).toStringAsFixed(0));
62 Expect.equals("-12", (-12.12).toStringAsFixed(0));
63 Expect.equals("-0.0000006", (-0.0000006).toStringAsFixed(7));
64 Expect.equals("-0.00000006", (-0.00000006).toStringAsFixed(8));
65 Expect.equals("-0.000000060", (-0.00000006).toStringAsFixed(9));
66 Expect.equals("-0.0000000600", (-0.00000006).toStringAsFixed(10));
67 Expect.equals("0", (-0.0).toStringAsFixed(0));
68 Expect.equals("0.0", (-0.0).toStringAsFixed(1));
69 Expect.equals("0.00", (-0.0).toStringAsFixed(2));
70
71 Expect.equals("1000", 1000.0.toStringAsFixed(0));
72 Expect.equals("0", 0.00001.toStringAsFixed(0));
73 Expect.equals("0.00001", 0.00001.toStringAsFixed(5));
74 Expect.equals("0.00000000000000000010", 0.0000000000000000001.toStringAsFixe d(20));
75 Expect.equals("0.00001000000000000", 0.00001.toStringAsFixed(17));
76 Expect.equals("1.00000000000000000", 1.0.toStringAsFixed(17));
77 Expect.equals("1000000000000000128", 1000000000000000128.0.toStringAsFixed(0 ));
78 Expect.equals("100000000000000128.0", 100000000000000128.0.toStringAsFixed(1 ));
79 Expect.equals("10000000000000128.00", 10000000000000128.0.toStringAsFixed(2) );
80 Expect.equals("10000000000000128.00000000000000000000", 10000000000000128.0. toStringAsFixed(20));
81 Expect.equals("0", 0.0.toStringAsFixed(0));
82 Expect.equals("-42.000", (-42.0).toStringAsFixed(3));
83 Expect.equals("-1000000000000000128", (-1000000000000000128.0).toStringAsFix ed(0));
84 Expect.equals("-0.00000000000000000010", (-0.0000000000000000001).toStringAs Fixed(20));
85 Expect.equals("0.12312312312312299889", 0.123123123123123.toStringAsFixed(20 ));
86 // Test that we round up even when the last digit generated is even.
87 // dtoa does not do this in its original form.
88 Expect.equals("1", 0.5.toStringAsFixed(0));
89 Expect.equals("-1", (-0.5).toStringAsFixed(0));
90 Expect.equals("1.3", 1.25.toStringAsFixed(1));
91 Expect.equals("234.2040", 234.20405.toStringAsFixed(4));
92 Expect.equals("234.2041", 234.2040506.toStringAsFixed(4));
93 {
94 bool thrown = false;
95 try {
96 0.0.toStringAsFixed(-1);
97 } catch (final e) {
98 thrown = true;
99 }
100 Expect.equals(true, thrown);
101 }
102 {
103 bool thrown = false;
104 try {
105 0.0.toStringAsFixed(22);
106 } catch (final e) {
107 thrown = true;
108 }
109 Expect.equals(true, thrown);
110 }
111 }
112 }
113
114
115 main() {
116 ToStringAsFixedTest.testMain();
117 }
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