Stop running pub get at gclient sync time and fix build bugs

mojo/public/dart/third_party/unittest/lib/compact_vm_config.dart

+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+/// A test configuration that generates a compact 1-line progress bar. The bar
+/// is updated in-place before and after each test is executed. If all tests
+/// pass, only a couple of lines are printed in the terminal. If a test fails,
+/// the failure is shown and the progress bar continues to be updated below it.
+library unittest.compact_vm_config;
+
+import 'dart:async';
+import 'dart:io';
+import 'dart:isolate';
+
+import 'unittest.dart';
+import 'src/utils.dart';
+import 'vm_config.dart';
+
+const String _GREEN = '\u001b[32m';
+const String _RED = '\u001b[31m';
+const String _NONE = '\u001b[0m';
+
+const int MAX_LINE = 80;
+
+class CompactVMConfiguration extends VMConfiguration {
+  // The VM won't shut down if a receive port is open. Use this to make sure
+  // we correctly wait for asynchronous tests.
+  ReceivePort _receivePort;
+
+  DateTime _start;
+  Set<int> _passing = new Set();
+  Set<int> _failing = new Set();
+  int get _pass => _passing.length;
+  int get _fail => _failing.length;
+
+  void onInit() {
+    _receivePort = new ReceivePort();
+    // Override and don't call the superclass onInit() to avoid printing the
+    // "unittest-suite-..." boilerplate.
+  }
+
+  void onStart() {
+    _start = new DateTime.now();
+  }
+
+  void onTestStart(TestCase test) {
+    super.onTestStart(test);
+    _progressLine(test.description);
+  }
+
+  void onTestResult(TestCase test) {
+    super.onTestResult(test);
+    if (test.result == PASS) {
+      _passing.add(test.id);
+      _progressLine(test.description);
+    } else {
+      _failing.add(test.id);
+      _progressLine(test.description);
+      _print();
+      if (test.message != '') {
+        _print(indent(test.message));
+      }
+
+      if (test.stackTrace != null) {
+        _print(indent(test.stackTrace.toString()));
+      }
+    }
+  }
+
+  void onTestResultChanged(TestCase test) {
+    _passing.remove(test.id);
+    _failing.add(test.id);
+    _progressLine(test.description);
+    _print();
+    if (test.message != '') {
+      _print(indent(test.message));
+    }
+
+    if (test.stackTrace != null) {
+      _print(indent(test.stackTrace.toString()));
+    }
+  }
+
+  void onDone(bool success) {
+    // Override and don't call the superclass onDone() to avoid printing the
+    // "unittest-suite-..." boilerplate.
+    Future.wait([stdout.close(), stderr.close()]).then((_) {
+      _receivePort.close();
+      exit(success ? 0 : 1);
+    });
+  }
+
+  void onSummary(int passed, int failed, int errors, List<TestCase> results,
+      String uncaughtError) {
+    if (passed == 0 && failed == 0 && errors == 0 && uncaughtError == null) {
+      _print('\nNo tests ran.');
+    } else if (failed == 0 && errors == 0 && uncaughtError == null) {
+      _progressLine('All tests passed!', _NONE);
+      _print();
+    } else {
+      _progressLine('Some tests failed.', _RED);
+      _print();
+      if (uncaughtError != null) {
+        _print('Top-level uncaught error: $uncaughtError');
+      }
+      _print('$passed PASSED, $failed FAILED, $errors ERRORS');
+    }
+  }
+
+  int _lastLength = 0;
+
+  final int _nonVisiblePrefix = 1 + _GREEN.length + _NONE.length;
+
+  void _progressLine(String message, [String color = _NONE]) {
+    var duration = (new DateTime.now()).difference(_start);
+    var buffer = new StringBuffer();
+    // \r moves back to the beginning of the current line.
+    buffer.write('\r${_timeString(duration)} ');
+    buffer.write(_GREEN);
+    buffer.write('+');
+    buffer.write(_pass);
+    buffer.write(_NONE);
+    if (_fail != 0) {
+      buffer.write(_RED);
+      buffer.write(' -');
+      buffer.write(_fail);
+      buffer.write(_NONE);
+    }
+    buffer.write(': ');
+    buffer.write(color);
+
+    // Ensure the line fits under MAX_LINE. [buffer] includes the color escape
+    // sequences too. Because these sequences are not visible characters, we
+    // make sure they are not counted towards the limit.
+    int nonVisible = _nonVisiblePrefix +
+        color.length +
+        (_fail != 0 ? (_RED.length + _NONE.length) : 0);
+    int len = buffer.length - nonVisible;
+    buffer.write(_snippet(message, MAX_LINE - len));
+    buffer.write(_NONE);
+
+    // Pad the rest of the line so that it looks erased.
+    len = buffer.length - nonVisible - _NONE.length;
+    if (len > _lastLength) {
+      _lastLength = len;
+    } else {
+      while (len < _lastLength) {
+        buffer.write(' ');
+        _lastLength--;
+      }
+    }
+    stdout.write(buffer.toString());
+  }
+
+  String _padTime(int time) =>
+      (time == 0) ? '00' : ((time < 10) ? '0$time' : '$time');
+
+  String _timeString(Duration duration) {
+    var min = duration.inMinutes;
+    var sec = duration.inSeconds % 60;
+    return '${_padTime(min)}:${_padTime(sec)}';
+  }
+
+  String _snippet(String text, int maxLength) {
+    // Return the full message if it fits
+    if (text.length <= maxLength) return text;
+
+    // If we can fit the first and last three words, do so.
+    var words = text.split(' ');
+    if (words.length > 1) {
+      int i = words.length;
+      var len = words.first.length + 4;
+      do {
+        len += 1 + words[--i].length;
+      } while (len <= maxLength && i > 0);
+      if (len > maxLength || i == 0) i++;
+      if (i < words.length - 4) {
+        // Require at least 3 words at the end.
+        var buffer = new StringBuffer();
+        buffer.write(words.first);
+        buffer.write(' ...');
+        for ( ; i < words.length; i++) {
+          buffer.write(' ');
+          buffer.write(words[i]);
+        }
+        return buffer.toString();
+      }
+    }
+
+    // Otherwise truncate to return the trailing text, but attempt to start at
+    // the beginning of a word.
+    var res = text.substring(text.length - maxLength + 4);
+    var firstSpace = res.indexOf(' ');
+    if (firstSpace > 0) {
+      res = res.substring(firstSpace);
+    }
+    return '...$res';
+  }
+}
+
+// TODO(sigmund): delete when dartbug.com/17269 is fixed (use `print` instead).
+_print([value = '']) => stdout.write('$value\n');
+
+void useCompactVMConfiguration() {
+  // If the test is running on the Dart buildbots, we don't want to use this
+  // config since it's output may not be what the bots expect.
+  if (Platform.environment['LOGNAME'] == 'chrome-bot') {
+    return;
+  }
+
+  unittestConfiguration = _singleton;
+}
+
+final _singleton = new CompactVMConfiguration();