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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 | 4 |
| 5 // Dart test program for testing stopwatch support. | 5 // Dart test program for testing stopwatch support. |
| 6 | 6 |
| 7 library stopwatch_test; | 7 library stopwatch_test; |
| 8 import 'dart:math'; | |
| 9 | 8 |
| 10 class StopwatchTest { | 9 class StopwatchTest { |
| 11 static bool checkTicking(Stopwatch sw) { | 10 static bool checkTicking(Stopwatch sw) { |
| 12 sw.start(); | 11 sw.start(); |
| 13 for (int i = 0; i < 10000; i++) { | 12 for (int i = 0; i < 10000; i++) { |
| 14 parseInt(i.toString()); | 13 int.parse(i.toString()); |
| 15 if (sw.elapsedTicks > 0) { | 14 if (sw.elapsedTicks > 0) { |
| 16 break; | 15 break; |
| 17 } | 16 } |
| 18 } | 17 } |
| 19 return sw.elapsedTicks > 0; | 18 return sw.elapsedTicks > 0; |
| 20 } | 19 } |
| 21 | 20 |
| 22 static bool checkStopping(Stopwatch sw) { | 21 static bool checkStopping(Stopwatch sw) { |
| 23 sw.stop(); | 22 sw.stop(); |
| 24 int v1 = sw.elapsedTicks; | 23 int v1 = sw.elapsedTicks; |
| 25 Expect.isTrue(v1 > 0); // Expect a non-zero elapsed time. | 24 Expect.isTrue(v1 > 0); // Expect a non-zero elapsed time. |
| 26 Stopwatch sw2 = new Stopwatch(); // Used for verification. | 25 Stopwatch sw2 = new Stopwatch(); // Used for verification. |
| 27 sw2.start(); | 26 sw2.start(); |
| 28 int sw2LastElapsed = 0; | 27 int sw2LastElapsed = 0; |
| 29 for (int i = 0; i < 100000; i++) { | 28 for (int i = 0; i < 100000; i++) { |
| 30 parseInt(i.toString()); | 29 int.parse(i.toString()); |
| 31 int v2 = sw.elapsedTicks; | 30 int v2 = sw.elapsedTicks; |
| 32 if (v1 != v2) { | 31 if (v1 != v2) { |
| 33 return false; | 32 return false; |
| 34 } | 33 } |
| 35 // If sw2 elapsed twice then sw must have advanced too if it wasn't | 34 // If sw2 elapsed twice then sw must have advanced too if it wasn't |
| 36 // stopped. | 35 // stopped. |
| 37 if (sw2LastElapsed > 0 && sw2.elapsedTicks > sw2LastElapsed) { | 36 if (sw2LastElapsed > 0 && sw2.elapsedTicks > sw2LastElapsed) { |
| 38 break; | 37 break; |
| 39 } | 38 } |
| 40 sw2LastElapsed = sw2.elapsedTicks; | 39 sw2LastElapsed = sw2.elapsedTicks; |
| 41 } | 40 } |
| 42 // The test only makes sense if measureable time elapsed and elapsed time | 41 // The test only makes sense if measureable time elapsed and elapsed time |
| 43 // on the stopped Stopwatch did not increase. | 42 // on the stopped Stopwatch did not increase. |
| 44 Expect.isTrue(sw2.elapsedTicks > 0); | 43 Expect.isTrue(sw2.elapsedTicks > 0); |
| 45 return true; | 44 return true; |
| 46 } | 45 } |
| 47 | 46 |
| 48 static checkRestart() { | 47 static checkRestart() { |
| 49 Stopwatch sw = new Stopwatch(); | 48 Stopwatch sw = new Stopwatch(); |
| 50 sw.start(); | 49 sw.start(); |
| 51 for (int i = 0; i < 100000; i++) { | 50 for (int i = 0; i < 100000; i++) { |
| 52 parseInt(i.toString()); | 51 int.parse(i.toString()); |
| 53 if (sw.elapsedTicks > 0) { | 52 if (sw.elapsedTicks > 0) { |
| 54 break; | 53 break; |
| 55 } | 54 } |
| 56 } | 55 } |
| 57 sw.stop(); | 56 sw.stop(); |
| 58 int initial = sw.elapsedTicks; | 57 int initial = sw.elapsedTicks; |
| 59 sw.start(); | 58 sw.start(); |
| 60 for (int i = 0; i < 100000; i++) { | 59 for (int i = 0; i < 100000; i++) { |
| 61 parseInt(i.toString()); | 60 int.parse(i.toString()); |
| 62 if (sw.elapsedTicks > initial) { | 61 if (sw.elapsedTicks > initial) { |
| 63 break; | 62 break; |
| 64 } | 63 } |
| 65 } | 64 } |
| 66 sw.stop(); | 65 sw.stop(); |
| 67 Expect.isTrue(sw.elapsedTicks > initial); | 66 Expect.isTrue(sw.elapsedTicks > initial); |
| 68 } | 67 } |
| 69 | 68 |
| 70 static checkReset() { | 69 static checkReset() { |
| 71 Stopwatch sw = new Stopwatch(); | 70 Stopwatch sw = new Stopwatch(); |
| 72 sw.start(); | 71 sw.start(); |
| 73 for (int i = 0; i < 100000; i++) { | 72 for (int i = 0; i < 100000; i++) { |
| 74 parseInt(i.toString()); | 73 int.parse(i.toString()); |
| 75 if (sw.elapsedTicks > 0) { | 74 if (sw.elapsedTicks > 0) { |
| 76 break; | 75 break; |
| 77 } | 76 } |
| 78 } | 77 } |
| 79 sw.stop(); | 78 sw.stop(); |
| 80 sw.reset(); | 79 sw.reset(); |
| 81 Expect.equals(0, sw.elapsedTicks); | 80 Expect.equals(0, sw.elapsedTicks); |
| 82 sw.start(); | 81 sw.start(); |
| 83 for (int i = 0; i < 100000; i++) { | 82 for (int i = 0; i < 100000; i++) { |
| 84 parseInt(i.toString()); | 83 int.parse(i.toString()); |
| 85 if (sw.elapsedTicks > 0) { | 84 if (sw.elapsedTicks > 0) { |
| 86 break; | 85 break; |
| 87 } | 86 } |
| 88 } | 87 } |
| 89 sw.reset(); | 88 sw.reset(); |
| 90 for (int i = 0; i < 100000; i++) { | 89 for (int i = 0; i < 100000; i++) { |
| 91 parseInt(i.toString()); | 90 int.parse(i.toString()); |
| 92 if (sw.elapsedTicks > 0) { | 91 if (sw.elapsedTicks > 0) { |
| 93 break; | 92 break; |
| 94 } | 93 } |
| 95 } | 94 } |
| 96 sw.stop(); | 95 sw.stop(); |
| 97 Expect.isTrue(sw.elapsedTicks > 0); | 96 Expect.isTrue(sw.elapsedTicks > 0); |
| 98 } | 97 } |
| 99 | 98 |
| 100 static testMain() { | 99 static testMain() { |
| 101 Stopwatch sw = new Stopwatch(); | 100 Stopwatch sw = new Stopwatch(); |
| 102 Expect.isTrue(checkTicking(sw)); | 101 Expect.isTrue(checkTicking(sw)); |
| 103 Expect.isTrue(checkStopping(sw)); | 102 Expect.isTrue(checkStopping(sw)); |
| 104 checkRestart(); | 103 checkRestart(); |
| 105 checkReset(); | 104 checkReset(); |
| 106 } | 105 } |
| 107 } | 106 } |
| 108 | 107 |
| 109 main() { | 108 main() { |
| 110 StopwatchTest.testMain(); | 109 StopwatchTest.testMain(); |
| 111 } | 110 } |
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