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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 /// A test configuration that generates a compact 1-line progress bar. The bar | |
| 6 /// is updated in-place before and after each test is executed. If all tests | |
| 7 /// pass, only a couple of lines are printed in the terminal. If a test fails, | |
| 8 /// the failure is shown and the progress bar continues to be updated below it. | |
| 9 library unittest.compact_vm_config; | |
| 10 | |
| 11 import 'dart:async'; | |
| 12 import 'dart:io'; | |
| 13 import 'dart:isolate'; | |
| 14 | |
| 15 import 'unittest.dart'; | |
| 16 import 'src/utils.dart'; | |
| 17 import 'vm_config.dart'; | |
| 18 | |
| 19 const String _GREEN = '\u001b[32m'; | |
| 20 const String _RED = '\u001b[31m'; | |
| 21 const String _NONE = '\u001b[0m'; | |
| 22 | |
| 23 const int MAX_LINE = 80; | |
| 24 | |
| 25 class CompactVMConfiguration extends VMConfiguration { | |
| 26 // The VM won't shut down if a receive port is open. Use this to make sure | |
| 27 // we correctly wait for asynchronous tests. | |
| 28 ReceivePort _receivePort; | |
| 29 | |
| 30 DateTime _start; | |
| 31 Set<int> _passing = new Set(); | |
| 32 Set<int> _failing = new Set(); | |
| 33 int get _pass => _passing.length; | |
| 34 int get _fail => _failing.length; | |
| 35 | |
| 36 void onInit() { | |
| 37 _receivePort = new ReceivePort(); | |
| 38 // Override and don't call the superclass onInit() to avoid printing the | |
| 39 // "unittest-suite-..." boilerplate. | |
| 40 } | |
| 41 | |
| 42 void onStart() { | |
| 43 _start = new DateTime.now(); | |
| 44 } | |
| 45 | |
| 46 void onTestStart(TestCase test) { | |
| 47 super.onTestStart(test); | |
| 48 _progressLine(test.description); | |
| 49 } | |
| 50 | |
| 51 void onTestResult(TestCase test) { | |
| 52 super.onTestResult(test); | |
| 53 if (test.result == PASS) { | |
| 54 _passing.add(test.id); | |
| 55 _progressLine(test.description); | |
| 56 } else { | |
| 57 _failing.add(test.id); | |
| 58 _progressLine(test.description); | |
| 59 _print(); | |
| 60 if (test.message != '') { | |
| 61 _print(indent(test.message)); | |
| 62 } | |
| 63 | |
| 64 if (test.stackTrace != null) { | |
| 65 _print(indent(test.stackTrace.toString())); | |
| 66 } | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 void onTestResultChanged(TestCase test) { | |
| 71 _passing.remove(test.id); | |
| 72 _failing.add(test.id); | |
| 73 _progressLine(test.description); | |
| 74 _print(); | |
| 75 if (test.message != '') { | |
| 76 _print(indent(test.message)); | |
| 77 } | |
| 78 | |
| 79 if (test.stackTrace != null) { | |
| 80 _print(indent(test.stackTrace.toString())); | |
| 81 } | |
| 82 } | |
| 83 | |
| 84 void onDone(bool success) { | |
| 85 // Override and don't call the superclass onDone() to avoid printing the | |
| 86 // "unittest-suite-..." boilerplate. | |
| 87 Future.wait([stdout.close(), stderr.close()]).then((_) { | |
| 88 _receivePort.close(); | |
| 89 exit(success ? 0 : 1); | |
| 90 }); | |
| 91 } | |
| 92 | |
| 93 void onSummary(int passed, int failed, int errors, List<TestCase> results, | |
| 94 String uncaughtError) { | |
| 95 var success = false; | |
| 96 if (passed == 0 && failed == 0 && errors == 0 && uncaughtError == null) { | |
| 97 _print('\nNo tests ran.'); | |
| 98 } else if (failed == 0 && errors == 0 && uncaughtError == null) { | |
| 99 _progressLine('All tests passed!', _NONE); | |
| 100 _print(); | |
| 101 success = true; | |
| 102 } else { | |
| 103 _progressLine('Some tests failed.', _RED); | |
| 104 _print(); | |
| 105 if (uncaughtError != null) { | |
| 106 _print('Top-level uncaught error: $uncaughtError'); | |
| 107 } | |
| 108 _print('$passed PASSED, $failed FAILED, $errors ERRORS'); | |
| 109 } | |
| 110 } | |
| 111 | |
| 112 int _lastLength = 0; | |
| 113 | |
| 114 final int _nonVisiblePrefix = 1 + _GREEN.length + _NONE.length; | |
| 115 | |
| 116 void _progressLine(String message, [String color = _NONE]) { | |
| 117 var duration = (new DateTime.now()).difference(_start); | |
| 118 var buffer = new StringBuffer(); | |
| 119 // \r moves back to the beginning of the current line. | |
| 120 buffer.write('\r${_timeString(duration)} '); | |
| 121 buffer.write(_GREEN); | |
| 122 buffer.write('+'); | |
| 123 buffer.write(_pass); | |
| 124 buffer.write(_NONE); | |
| 125 if (_fail != 0) { | |
| 126 buffer.write(_RED); | |
| 127 buffer.write(' -'); | |
| 128 buffer.write(_fail); | |
| 129 buffer.write(_NONE); | |
| 130 } | |
| 131 buffer.write(': '); | |
| 132 buffer.write(color); | |
| 133 | |
| 134 // Ensure the line fits under MAX_LINE. [buffer] includes the color escape | |
| 135 // sequences too. Because these sequences are not visible characters, we | |
| 136 // make sure they are not counted towards the limit. | |
| 137 int nonVisible = _nonVisiblePrefix + color.length + | |
| 138 (_fail != 0 ? (_RED.length + _NONE.length) : 0); | |
| 139 int len = buffer.length - nonVisible; | |
| 140 var mx = MAX_LINE - len; | |
| 141 buffer.write(_snippet(message, MAX_LINE - len)); | |
| 142 buffer.write(_NONE); | |
| 143 | |
| 144 // Pad the rest of the line so that it looks erased. | |
| 145 len = buffer.length - nonVisible - _NONE.length; | |
| 146 if (len > _lastLength) { | |
| 147 _lastLength = len; | |
| 148 } else { | |
| 149 while (len < _lastLength) { | |
| 150 buffer.write(' '); | |
| 151 _lastLength--; | |
| 152 } | |
| 153 } | |
| 154 stdout.write(buffer.toString()); | |
| 155 } | |
| 156 | |
| 157 String _padTime(int time) => | |
| 158 (time == 0) ? '00' : ((time < 10) ? '0$time' : '$time'); | |
| 159 | |
| 160 String _timeString(Duration duration) { | |
| 161 var min = duration.inMinutes; | |
| 162 var sec = duration.inSeconds % 60; | |
| 163 return '${_padTime(min)}:${_padTime(sec)}'; | |
| 164 } | |
| 165 | |
| 166 String _snippet(String text, int maxLength) { | |
| 167 // Return the full message if it fits | |
| 168 if (text.length <= maxLength) return text; | |
| 169 | |
| 170 // If we can fit the first and last three words, do so. | |
| 171 var words = text.split(' '); | |
| 172 if (words.length > 1) { | |
| 173 int i = words.length; | |
| 174 var len = words.first.length + 4; | |
| 175 do { | |
| 176 len += 1 + words[--i].length; | |
| 177 } while (len <= maxLength && i > 0); | |
| 178 if (len > maxLength || i == 0) i++; | |
| 179 if (i < words.length - 4) { | |
| 180 // Require at least 3 words at the end. | |
| 181 var buffer = new StringBuffer(); | |
| 182 buffer.write(words.first); | |
| 183 buffer.write(' ...'); | |
| 184 for (; i < words.length; i++) { | |
| 185 buffer.write(' '); | |
| 186 buffer.write(words[i]); | |
| 187 } | |
| 188 return buffer.toString(); | |
| 189 } | |
| 190 } | |
| 191 | |
| 192 // Otherwise truncate to return the trailing text, but attempt to start at | |
| 193 // the beginning of a word. | |
| 194 var res = text.substring(text.length - maxLength + 4); | |
| 195 var firstSpace = res.indexOf(' '); | |
| 196 if (firstSpace > 0) { | |
| 197 res = res.substring(firstSpace); | |
| 198 } | |
| 199 return '...$res'; | |
| 200 } | |
| 201 } | |
| 202 | |
| 203 // TODO(sigmund): delete when dartbug.com/17269 is fixed (use `print` instead). | |
| 204 _print([value = '']) => stdout.write('$value\n'); | |
| 205 | |
| 206 void useCompactVMConfiguration() { | |
| 207 // If the test is running on the Dart buildbots, we don't want to use this | |
| 208 // config since it's output may not be what the bots expect. | |
| 209 if (Platform.environment['LOGNAME'] == 'chrome-bot') { | |
| 210 return; | |
| 211 } | |
| 212 | |
| 213 unittestConfiguration = _singleton; | |
| 214 } | |
| 215 | |
| 216 final _singleton = new CompactVMConfiguration(); | |
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Chromium Code Reviews
Issue 807193003:
Re-apply "Remove unittest and matcher from the repo." (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart