Always enable the friendly pub unittest config locally.

utils/tests/pub/test_pub.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.
 
 /// Test infrastructure for testing pub. Unlike typical unit tests, most pub
 /// tests are integration tests that stage some stuff on the file system, run
 /// pub, and then validate the results. This library provides an API to build
 /// tests like that.
 library test_pub;
 
@@ skipping 27 matching lines @@
 import '../../pub/system_cache.dart';
 import '../../pub/utils.dart';
 import '../../pub/validator.dart';
 import 'command_line_config.dart';
 import 'descriptor.dart' as d;
 
 /// This should be called at the top of a test file to set up an appropriate
 /// test configuration for the machine running the tests.
 initConfig() {
   // If we aren't running on the bots, use the human-friendly config.
-  if (new Options().arguments.contains('--human')) {
+  if (!runningOnBuildbot) {
     unittestConfiguration = new CommandLineConfiguration();
   }
 }
 
+/// Returns whether we're running on a Dart build bot.
+bool runningOnBuildbot =>
+  Platform.environment.containsKey('BUILDBOT_BUILDERNAME');
+
 /// The current [HttpServer] created using [serve].
 var _server;
 
 /// The cached value for [_portCompleter].
 Completer<int> _portCompleterCache;
 
 /// The completer for [port].
 Completer<int> get _portCompleter {
   if (_portCompleterCache != null) return _portCompleterCache;
   _portCompleterCache = new Completer<int>();
@@ skipping 329 matching lines @@
 /// This will also increase the [Schedule] timeout to 30 seconds on Windows,
 /// where Git runs really slowly.
 void ensureGit() {
   if (Platform.operatingSystem == "windows") {
     currentSchedule.timeout = new Duration(seconds: 30);
   }
 
   schedule(() {
     return gitlib.isInstalled.then((installed) {
       if (installed) return;
-      if (Platform.environment.containsKey('BUILDBOT_BUILDERNAME')) return;
+      if (runningOnBuildbot) return;
       currentSchedule.abort();
     });
   }, 'ensuring that Git is installed');
 }
 
 /// Use [client] as the mock HTTP client for this test.
 ///
 /// Note that this will only affect HTTP requests made via http.dart in the
 /// parent process.
 void useMockClient(MockClient client) {
@@ skipping 188 matching lines @@
   bool matches(item, MatchState matchState) {
     if (item is! Pair) return false;
     return _firstMatcher.matches(item.first, matchState) &&
         _lastMatcher.matches(item.last, matchState);
   }
 
   Description describe(Description description) {
     description.addAll("(", ", ", ")", [_firstMatcher, _lastMatcher]);
   }
 }