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| 1 // Copyright (c) 2015, 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 'dart:async'; |
| 6 |
| 7 import 'package:async/async.dart'; |
| 8 import 'package:fake_async/fake_async.dart'; |
| 9 import 'package:test/test.dart'; |
| 10 |
| 11 main() { |
| 12 test("runs the callback once the duration has elapsed", () { |
| 13 new FakeAsync().run((async) { |
| 14 var fired = false; |
| 15 var timer = new RestartableTimer(new Duration(seconds: 5), () { |
| 16 fired = true; |
| 17 }); |
| 18 |
| 19 async.elapse(new Duration(seconds: 4)); |
| 20 expect(fired, isFalse); |
| 21 |
| 22 async.elapse(new Duration(seconds: 1)); |
| 23 expect(fired, isTrue); |
| 24 }); |
| 25 }); |
| 26 |
| 27 test("doesn't run the callback if the timer is canceled", () { |
| 28 new FakeAsync().run((async) { |
| 29 var fired = false; |
| 30 var timer = new RestartableTimer(new Duration(seconds: 5), () { |
| 31 fired = true; |
| 32 }); |
| 33 |
| 34 async.elapse(new Duration(seconds: 4)); |
| 35 expect(fired, isFalse); |
| 36 timer.cancel(); |
| 37 |
| 38 async.elapse(new Duration(seconds: 4)); |
| 39 expect(fired, isFalse); |
| 40 }); |
| 41 }); |
| 42 |
| 43 test("resets the duration if the timer is reset before it fires", () { |
| 44 new FakeAsync().run((async) { |
| 45 var fired = false; |
| 46 var timer = new RestartableTimer(new Duration(seconds: 5), () { |
| 47 fired = true; |
| 48 }); |
| 49 |
| 50 async.elapse(new Duration(seconds: 4)); |
| 51 expect(fired, isFalse); |
| 52 timer.reset(); |
| 53 |
| 54 async.elapse(new Duration(seconds: 4)); |
| 55 expect(fired, isFalse); |
| 56 |
| 57 async.elapse(new Duration(seconds: 1)); |
| 58 expect(fired, isTrue); |
| 59 }); |
| 60 }); |
| 61 |
| 62 test("re-runs the callback if the timer is reset after firing", () { |
| 63 new FakeAsync().run((async) { |
| 64 var fired = 0; |
| 65 var timer = new RestartableTimer(new Duration(seconds: 5), () { |
| 66 fired++; |
| 67 }); |
| 68 |
| 69 async.elapse(new Duration(seconds: 5)); |
| 70 expect(fired, equals(1)); |
| 71 timer.reset(); |
| 72 |
| 73 async.elapse(new Duration(seconds: 5)); |
| 74 expect(fired, equals(2)); |
| 75 timer.reset(); |
| 76 |
| 77 async.elapse(new Duration(seconds: 5)); |
| 78 expect(fired, equals(3)); |
| 79 }); |
| 80 }); |
| 81 |
| 82 test("runs the callback if the timer is reset after being canceled", () { |
| 83 new FakeAsync().run((async) { |
| 84 var fired = false; |
| 85 var timer = new RestartableTimer(new Duration(seconds: 5), () { |
| 86 fired = true; |
| 87 }); |
| 88 |
| 89 async.elapse(new Duration(seconds: 4)); |
| 90 expect(fired, isFalse); |
| 91 timer.cancel(); |
| 92 |
| 93 async.elapse(new Duration(seconds: 4)); |
| 94 expect(fired, isFalse); |
| 95 timer.reset(); |
| 96 |
| 97 async.elapse(new Duration(seconds: 5)); |
| 98 expect(fired, isTrue); |
| 99 }); |
| 100 }); |
| 101 |
| 102 test("only runs the callback once if the timer isn't reset", () { |
| 103 new FakeAsync().run((async) { |
| 104 var timer = new RestartableTimer( |
| 105 new Duration(seconds: 5), |
| 106 expectAsync(() {}, count: 1)); |
| 107 async.elapse(new Duration(seconds: 10)); |
| 108 }); |
| 109 }); |
| 110 } |
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