Sharing metatest logic between unittest and scheduled_test

pkg/scheduled_test/test/scheduled_stream/stream_matcher_test.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.
 
 library scheduled_test.stream_matcher_test;
 
 import 'dart:async';
 
 import 'package:scheduled_test/scheduled_stream.dart';
 import 'package:scheduled_test/scheduled_test.dart';
 import 'package:scheduled_test/src/utils.dart';
 
-import '../metatest.dart';
+import 'package:metatest/metatest.dart';
 import '../utils.dart';
 
 /// Returns a [ScheduledStream] that asynchronously emits the numbers 1 through
 /// 5 and then closes.
 ScheduledStream createStream() {
   var controller = new StreamController();
   var stream = new ScheduledStream(controller.stream);
 
   var future = pumpEventQueue();
   for (var i = 1; i <= 5; i++) {
     future = future.then((_) {
       controller.add(i);
       return pumpEventQueue();
     });
   }
   future.then((_) => controller.close());
 
   return stream;
 }
 
-void main(_, message) {
+void main() => initTests(_test);
+
+void _test(message) {
   initMetatest(message);
 
   setUpTimeout();
 
   expectTestPasses("expect() with matching values passes", () {
     var stream = createStream();
     stream.expect(1);
     stream.expect(2);
     stream.expect(3);
     stream.expect(4);
@@ skipping 279 matching lines @@
     expect(errors.first.error.message, equals(
         "Expected: is done\n"
         " Emitted: * 1\n"
         "          * 2\n"
         "          * 3\n"
         "          * 4\n"
         "          * 5\n"
         "   Which: stream wasn't finished"));
   });
 }