Some unit test fixes:

tests/lib/unittest/testers.dart

+// Copyright (c) 2012, 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.
+

[Siggi Cherem (dart-lang), 2012/06/13 23:43:53]

let's rename this file, ideas:
- test_utils.dart
- test_helpers.dart

[gram, 2012/06/14 00:50:58]

Done.

+int errorCount;
+String errorString;
+var _testHandler = null;
+
+class MyFailureHandler extends DefaultFailureHandler {
+  void fail(String reason) {
+    ++errorCount;
+    errorString = reason;
+  }
+}
+
+void initTesters() {

[Siggi Cherem (dart-lang), 2012/06/13 23:43:53]

rename according to file rename... 

[gram, 2012/06/14 00:50:58]

Done.

+  if (_testHandler == null) {
+    _testHandler = new MyFailureHandler();
+  }
+}
+
+void shouldFail(var value, Matcher matcher, expected) {

[Bob Nystrom, 2012/06/13 23:52:29]

Don't need "var" here.

[gram, 2012/06/14 00:50:58]

Done.

+  configureExpectHandler(_testHandler);
+  errorCount = 0;
+  errorString = '';
+  expect(value, matcher);
+  configureExpectHandler(null);
+  expect(errorCount, equals(1));
+  if (expected is String)

[Bob Nystrom, 2012/06/13 23:52:29]

Multi-line ifs should use curlies.

[gram, 2012/06/14 00:50:58]

Done.

+    expect(errorString, equalsIgnoringWhitespace(expected));
+  else
+   expect(errorString, expected);
+}
+
+void shouldPass(var value, Matcher matcher) {
+  configureExpectHandler(_testHandler);
+  errorCount = 0;
+  errorString = '';
+  expect(value, matcher);
+  configureExpectHandler(null);
+  expect(errorCount, equals(0));
+}
+

[Siggi Cherem (dart-lang), 2012/06/13 23:43:53]

empty line