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1 // Copyright (c) 2013, 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 | |
5 import "package:expect/expect.dart"; | |
6 import 'dart:math'; | |
7 | |
8 main() { | |
9 Duration d, d1; | |
10 | |
11 d1 = new Duration(microseconds: pow(2, 53)); | |
12 d = d1 * 2; | |
13 Expect.equals(pow(2, 54), d.inMicroseconds); | |
14 d = d1 * 1.5; | |
15 Expect.equals(pow(2, 53).toDouble() * 1.5, d.inMicroseconds); | |
16 Expect.isTrue(d.inMicroseconds is int); | |
17 | |
18 // Test that we lose precision when multiplying with a double. | |
19 d = new Duration(microseconds: pow(2, 53) + 1) * 1.0; | |
20 Expect.equals(0, d.inMicroseconds % 2); | |
21 } | |
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