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Side by Side Diff: tests/language/src/ToStringAsFixedTest.dart

Issue 8728006: Implement Double.toStringAsFixed. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Fix syntax error. Created 8 years, 12 months ago
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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file 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 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. 3 // BSD-style license that can be found in the LICENSE file.
4 // Test basic integer operations. 4 // Test basic integer operations.
5 5
6 class ToStringAsFixedTest { 6 class ToStringAsFixedTest {
7 static void testMain() { 7 static void testMain() {
8 Expect.equals("2.000", 2.0.toStringAsFixed(3)); 8 Expect.equals("2.000", 2.0.toStringAsFixed(3));
9 Expect.equals("2.100", 2.1.toStringAsFixed(3)); 9 Expect.equals("2.100", 2.1.toStringAsFixed(3));
10 Expect.equals("2.120", 2.12.toStringAsFixed(3)); 10 Expect.equals("2.120", 2.12.toStringAsFixed(3));
11 Expect.equals("2.123", 2.123.toStringAsFixed(3)); 11 Expect.equals("2.123", 2.123.toStringAsFixed(3));
12 Expect.equals("2.124", 2.1239.toStringAsFixed(3)); 12 Expect.equals("2.124", 2.1239.toStringAsFixed(3));
13 Expect.equals("NaN", (0.0 / 0.0).toStringAsFixed(3)); 13 Expect.equals("NaN", (0.0 / 0.0).toStringAsFixed(3));
14 Expect.equals("Infinity", (1.0/0.0).toStringAsFixed(3)); 14 Expect.equals("Infinity", (1.0/0.0).toStringAsFixed(3));
15 Expect.equals("-Infinity", (-1.0/0.0).toStringAsFixed(3)); 15 Expect.equals("-Infinity", (-1.0/0.0).toStringAsFixed(3));
16 // FIXME: currently bigint formatting produces hexes. 16 // TODO(floitsch): enable the following test when double.toString does the
17 // right thing.
17 // Expect.equals("1.1111111111111111e+21", 1111111111111111111111.0.toString AsFixed(8)); 18 // Expect.equals("1.1111111111111111e+21", 1111111111111111111111.0.toString AsFixed(8));
18 Expect.equals("0.1", 0.1.toStringAsFixed(1)); 19 Expect.equals("0.1", 0.1.toStringAsFixed(1));
19 Expect.equals("0.10", 0.1.toStringAsFixed(2)); 20 Expect.equals("0.10", 0.1.toStringAsFixed(2));
20 Expect.equals("0.100", 0.1.toStringAsFixed(3)); 21 Expect.equals("0.100", 0.1.toStringAsFixed(3));
21 Expect.equals("0.01", 0.01.toStringAsFixed(2)); 22 Expect.equals("0.01", 0.01.toStringAsFixed(2));
22 Expect.equals("0.010", 0.01.toStringAsFixed(3)); 23 Expect.equals("0.010", 0.01.toStringAsFixed(3));
23 Expect.equals("0.0100", 0.01.toStringAsFixed(4)); 24 Expect.equals("0.0100", 0.01.toStringAsFixed(4));
24 Expect.equals("0.00", 0.001.toStringAsFixed(2)); 25 Expect.equals("0.00", 0.001.toStringAsFixed(2));
25 Expect.equals("0.001", 0.001.toStringAsFixed(3)); 26 Expect.equals("0.001", 0.001.toStringAsFixed(3));
26 Expect.equals("0.0010", 0.001.toStringAsFixed(4)); 27 Expect.equals("0.0010", 0.001.toStringAsFixed(4));
27 Expect.equals("1.0000", 1.0.toStringAsFixed(4)); 28 Expect.equals("1.0000", 1.0.toStringAsFixed(4));
28 Expect.equals("1.0", 1.0.toStringAsFixed(1)); 29 Expect.equals("1.0", 1.0.toStringAsFixed(1));
29 Expect.equals("1", 1.0.toStringAsFixed(0)); 30 Expect.equals("1", 1.0.toStringAsFixed(0));
30 Expect.equals("12", 12.0.toStringAsFixed(0)); 31 Expect.equals("12", 12.0.toStringAsFixed(0));
31 Expect.equals("1", 1.1.toStringAsFixed(0)); 32 Expect.equals("1", 1.1.toStringAsFixed(0));
32 Expect.equals("12", 12.1.toStringAsFixed(0)); 33 Expect.equals("12", 12.1.toStringAsFixed(0));
33 Expect.equals("1", 1.12.toStringAsFixed(0)); 34 Expect.equals("1", 1.12.toStringAsFixed(0));
34 Expect.equals("12", 12.12.toStringAsFixed(0)); 35 Expect.equals("12", 12.12.toStringAsFixed(0));
35 Expect.equals("0.0000006", 0.0000006.toStringAsFixed(7)); 36 Expect.equals("0.0000006", 0.0000006.toStringAsFixed(7));
36 Expect.equals("0.00000006", 0.00000006.toStringAsFixed(8)); 37 Expect.equals("0.00000006", 0.00000006.toStringAsFixed(8));
37 Expect.equals("0.000000060", 0.00000006.toStringAsFixed(9)); 38 Expect.equals("0.000000060", 0.00000006.toStringAsFixed(9));
38 Expect.equals("0.0000000600", 0.00000006.toStringAsFixed(10)); 39 Expect.equals("0.0000000600", 0.00000006.toStringAsFixed(10));
39 Expect.equals("0", 0.0.toStringAsFixed(0)); 40 Expect.equals("0", 0.0.toStringAsFixed(0));
40 Expect.equals("0.0", 0.0.toStringAsFixed(1)); 41 Expect.equals("0.0", 0.0.toStringAsFixed(1));
41 Expect.equals("0.00", 0.0.toStringAsFixed(2)); 42 Expect.equals("0.00", 0.0.toStringAsFixed(2));
42 43
43 // FIXME: currently bigint formatting produces hexes. 44 // TODO(floitsch): enable the following test when double.toString does the
45 // right thing.
44 // Expect.equals("-1.1111111111111111e+21", (-1111111111111111111111.0).toSt ringAsFixed(8)); 46 // Expect.equals("-1.1111111111111111e+21", (-1111111111111111111111.0).toSt ringAsFixed(8));
45 Expect.equals("-0.1", (-0.1).toStringAsFixed(1)); 47 Expect.equals("-0.1", (-0.1).toStringAsFixed(1));
46 Expect.equals("-0.10", (-0.1).toStringAsFixed(2)); 48 Expect.equals("-0.10", (-0.1).toStringAsFixed(2));
47 Expect.equals("-0.100", (-0.1).toStringAsFixed(3)); 49 Expect.equals("-0.100", (-0.1).toStringAsFixed(3));
48 Expect.equals("-0.01", (-0.01).toStringAsFixed(2)); 50 Expect.equals("-0.01", (-0.01).toStringAsFixed(2));
49 Expect.equals("-0.010", (-0.01).toStringAsFixed(3)); 51 Expect.equals("-0.010", (-0.01).toStringAsFixed(3));
50 Expect.equals("-0.0100", (-0.01).toStringAsFixed(4)); 52 Expect.equals("-0.0100", (-0.01).toStringAsFixed(4));
51 Expect.equals("-0.00", (-0.001).toStringAsFixed(2)); 53 Expect.equals("-0.00", (-0.001).toStringAsFixed(2));
52 Expect.equals("-0.001", (-0.001).toStringAsFixed(3)); 54 Expect.equals("-0.001", (-0.001).toStringAsFixed(3));
53 Expect.equals("-0.0010", (-0.001).toStringAsFixed(4)); 55 Expect.equals("-0.0010", (-0.001).toStringAsFixed(4));
54 Expect.equals("-1.0000", (-1.0).toStringAsFixed(4)); 56 Expect.equals("-1.0000", (-1.0).toStringAsFixed(4));
55 Expect.equals("-1.0", (-1.0).toStringAsFixed(1)); 57 Expect.equals("-1.0", (-1.0).toStringAsFixed(1));
56 Expect.equals("-1", (-1.0).toStringAsFixed(0)); 58 Expect.equals("-1", (-1.0).toStringAsFixed(0));
57 Expect.equals("-1", (-1.1).toStringAsFixed(0)); 59 Expect.equals("-1", (-1.1).toStringAsFixed(0));
58 Expect.equals("-12", (-12.1).toStringAsFixed(0)); 60 Expect.equals("-12", (-12.1).toStringAsFixed(0));
59 Expect.equals("-1", (-1.12).toStringAsFixed(0)); 61 Expect.equals("-1", (-1.12).toStringAsFixed(0));
60 Expect.equals("-12", (-12.12).toStringAsFixed(0)); 62 Expect.equals("-12", (-12.12).toStringAsFixed(0));
61 Expect.equals("-0.0000006", (-0.0000006).toStringAsFixed(7)); 63 Expect.equals("-0.0000006", (-0.0000006).toStringAsFixed(7));
62 Expect.equals("-0.00000006", (-0.00000006).toStringAsFixed(8)); 64 Expect.equals("-0.00000006", (-0.00000006).toStringAsFixed(8));
63 Expect.equals("-0.000000060", (-0.00000006).toStringAsFixed(9)); 65 Expect.equals("-0.000000060", (-0.00000006).toStringAsFixed(9));
64 Expect.equals("-0.0000000600", (-0.00000006).toStringAsFixed(10)); 66 Expect.equals("-0.0000000600", (-0.00000006).toStringAsFixed(10));
65 Expect.equals("0", (-0.0).toStringAsFixed(0)); 67 Expect.equals("-0", (-0.0).toStringAsFixed(0));
66 Expect.equals("0.0", (-0.0).toStringAsFixed(1)); 68 Expect.equals("-0.0", (-0.0).toStringAsFixed(1));
67 Expect.equals("0.00", (-0.0).toStringAsFixed(2)); 69 Expect.equals("-0.00", (-0.0).toStringAsFixed(2));
68 70
69 Expect.equals("1000", 1000.0.toStringAsFixed(0)); 71 Expect.equals("1000", 1000.0.toStringAsFixed(0));
70 Expect.equals("0", 0.00001.toStringAsFixed(0)); 72 Expect.equals("0", 0.00001.toStringAsFixed(0));
71 Expect.equals("0.00001", 0.00001.toStringAsFixed(5)); 73 Expect.equals("0.00001", 0.00001.toStringAsFixed(5));
72 Expect.equals("0.00000000000000000010", 0.0000000000000000001.toStringAsFixe d(20)); 74 Expect.equals("0.00000000000000000010", 0.0000000000000000001.toStringAsFixe d(20));
73 Expect.equals("0.00001000000000000", 0.00001.toStringAsFixed(17)); 75 Expect.equals("0.00001000000000000", 0.00001.toStringAsFixed(17));
74 Expect.equals("1.00000000000000000", 1.0.toStringAsFixed(17)); 76 Expect.equals("1.00000000000000000", 1.0.toStringAsFixed(17));
75 Expect.equals("1000000000000000128", 1000000000000000128.0.toStringAsFixed(0 )); 77 Expect.equals("1000000000000000128", 1000000000000000128.0.toStringAsFixed(0 ));
76 Expect.equals("100000000000000128.0", 100000000000000128.0.toStringAsFixed(1 )); 78 Expect.equals("100000000000000128.0", 100000000000000128.0.toStringAsFixed(1 ));
77 Expect.equals("10000000000000128.00", 10000000000000128.0.toStringAsFixed(2) ); 79 Expect.equals("10000000000000128.00", 10000000000000128.0.toStringAsFixed(2) );
78 // FIXME: currently bigint formatting produces hexes. 80 Expect.equals("10000000000000128.00000000000000000000", 10000000000000128.0. toStringAsFixed(20));
79 // Expect.equals("10000000000000128.00000000000000000000", 10000000000000128 .0.toStringAsFixed(20));
80 Expect.equals("0", 0.0.toStringAsFixed(0)); 81 Expect.equals("0", 0.0.toStringAsFixed(0));
81 Expect.equals("-42.000", (-42.0).toStringAsFixed(3)); 82 Expect.equals("-42.000", (-42.0).toStringAsFixed(3));
82 Expect.equals("-1000000000000000128", (-1000000000000000128.0).toStringAsFix ed(0)); 83 Expect.equals("-1000000000000000128", (-1000000000000000128.0).toStringAsFix ed(0));
83 Expect.equals("-0.00000000000000000010", (-0.0000000000000000001).toStringAs Fixed(20)); 84 Expect.equals("-0.00000000000000000010", (-0.0000000000000000001).toStringAs Fixed(20));
84 // FIXME: currently bigint formatting produces hexes. 85 Expect.equals("0.12312312312312299889", 0.123123123123123.toStringAsFixed(20 ));
85 // Expect.equals("0.12312312312312299889", 0.123123123123123.toStringAsFixed (20));
86 // Test that we round up even when the last digit generated is even. 86 // Test that we round up even when the last digit generated is even.
87 // dtoa does not do this in its original form. 87 // dtoa does not do this in its original form.
88 Expect.equals("1", 0.5.toStringAsFixed(0)); 88 Expect.equals("1", 0.5.toStringAsFixed(0));
89 Expect.equals("-1", (-0.5).toStringAsFixed(0)); 89 Expect.equals("-1", (-0.5).toStringAsFixed(0));
90 Expect.equals("1.3", 1.25.toStringAsFixed(1)); 90 Expect.equals("1.3", 1.25.toStringAsFixed(1));
91 // This is bizare, but Spidermonkey and KJS behave the same. 91 Expect.equals("234.2040", 234.20405.toStringAsFixed(4));
92 // FIXME: consider if we'd like to unify this corner case.
93 // Expect.equals("234.2040", 234.20405.toStringAsFixed(4));
94 Expect.equals("234.2041", 234.2040506.toStringAsFixed(4)); 92 Expect.equals("234.2041", 234.2040506.toStringAsFixed(4));
95 { 93 {
96 bool thrown = false; 94 bool thrown = false;
97 try { 95 try {
98 0.0.toStringAsFixed(-1); 96 0.0.toStringAsFixed(-1);
99 } catch (final e) { 97 } catch (final e) {
100 thrown = true; 98 thrown = true;
101 } 99 }
102 Expect.equals(true, thrown); 100 Expect.equals(true, thrown);
103 } 101 }
104 { 102 {
105 bool thrown = false; 103 bool thrown = false;
106 try { 104 try {
107 0.0.toStringAsFixed(22); 105 0.0.toStringAsFixed(22);
108 } catch (final e) { 106 } catch (final e) {
109 thrown = true; 107 thrown = true;
110 } 108 }
111 Expect.equals(true, thrown); 109 Expect.equals(true, thrown);
112 } 110 }
113 } 111 }
114 } 112 }
115 113
116 114
117 main() { 115 main() {
118 ToStringAsFixedTest.testMain(); 116 ToStringAsFixedTest.testMain();
119 } 117 }
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