pkg/matcher: refactor with unittest v0.12 work

test/core_matchers_test.dart

Index: test/core_matchers_test.dart
diff --git a/test/core_matchers_test.dart b/test/core_matchers_test.dart
index 702489404ad8d11bdeb13cca7b3b7f421bed3e97..a9f7ca05d434b92b019444948b6d203425abb77b 100644
--- a/test/core_matchers_test.dart
+++ b/test/core_matchers_test.dart
@@ -10,8 +10,6 @@ import 'package:unittest/unittest.dart' show test, group;
 import 'test_utils.dart';
 
 void main() {
-  initUtils();
-
   test('isTrue', () {
     shouldPass(true, isTrue);
     shouldFail(false, isTrue, "Expected: true Actual: <false>");
@@ -117,7 +115,7 @@ void main() {
     shouldPass(a, hasLength(0));
     shouldPass(b, hasLength(0));
     shouldPass('a', hasLength(1));
-    shouldFail(0, hasLength(0), new PrefixMatcher(
+    shouldFail(0, hasLength(0), new _PrefixMatcher(
         "Expected: an object with length of <0> "
         "Actual: <0> "
         "Which: has no length property"));
@@ -190,3 +188,17 @@ void main() {
     });
   });
 }
+
+class _PrefixMatcher extends Matcher {

[nweiz, 2015/02/17 23:17:42]

Add at least a short description of this.

[kevmoo, 2015/02/18 00:33:40]

Or remove it. Much easier. :-)

+  final String _prefix;
+  const _PrefixMatcher(this._prefix);
+  bool matches(item, Map matchState) {
+    return item is String &&
+        (collapseWhitespace(item)).startsWith(collapseWhitespace(_prefix));
+  }
+
+  Description describe(Description description) => description
+      .add('a string starting with ')
+      .addDescriptionOf(collapseWhitespace(_prefix))
+      .add(' ignoring whitespace');
+}