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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, 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)); |
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78 Expect.equals("-1000000000000000128", (-1000000000000000128.0).toStringAsFix
ed(0)); | 78 Expect.equals("-1000000000000000128", (-1000000000000000128.0).toStringAsFix
ed(0)); |
79 Expect.equals("-0.00000000000000000010", (-0.0000000000000000001).toStringAs
Fixed(20)); | 79 Expect.equals("-0.00000000000000000010", (-0.0000000000000000001).toStringAs
Fixed(20)); |
80 Expect.equals("0.12312312312312299889", 0.123123123123123.toStringAsFixed(20
)); | 80 Expect.equals("0.12312312312312299889", 0.123123123123123.toStringAsFixed(20
)); |
81 // Test that we round up even when the last digit generated is even. | 81 // Test that we round up even when the last digit generated is even. |
82 // dtoa does not do this in its original form. | 82 // dtoa does not do this in its original form. |
83 Expect.equals("1", 0.5.toStringAsFixed(0)); | 83 Expect.equals("1", 0.5.toStringAsFixed(0)); |
84 Expect.equals("-1", (-0.5).toStringAsFixed(0)); | 84 Expect.equals("-1", (-0.5).toStringAsFixed(0)); |
85 Expect.equals("1.3", 1.25.toStringAsFixed(1)); | 85 Expect.equals("1.3", 1.25.toStringAsFixed(1)); |
86 Expect.equals("234.2040", 234.20405.toStringAsFixed(4)); | 86 Expect.equals("234.2040", 234.20405.toStringAsFixed(4)); |
87 Expect.equals("234.2041", 234.2040506.toStringAsFixed(4)); | 87 Expect.equals("234.2041", 234.2040506.toStringAsFixed(4)); |
88 { | |
89 bool thrown = false; | |
90 try { | |
91 0.0.toStringAsFixed(-1); | |
92 } catch (e) { | |
93 thrown = true; | |
94 } | |
95 Expect.equals(true, thrown); | |
96 } | |
97 { | |
98 bool thrown = false; | |
99 try { | |
100 0.0.toStringAsFixed(22); | |
101 } catch (e) { | |
102 thrown = true; | |
103 } | |
104 Expect.equals(true, thrown); | |
105 } | |
106 } | 88 } |
107 } | 89 } |
108 | 90 |
109 | 91 |
110 main() { | 92 main() { |
111 ToStringAsFixedTest.testMain(); | 93 ToStringAsFixedTest.testMain(); |
112 } | 94 } |
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