Rename the package to "test".

test/util/multi_channel_test.dart

 // Copyright (c) 2015, 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.
 
 import 'dart:async';
 
-import 'package:unittest/src/util/multi_channel.dart';
-import 'package:unittest/unittest.dart';
+import 'package:test/src/util/multi_channel.dart';
+import 'package:test/test.dart';
 
 import '../utils.dart';
 
 void main() {
   var oneToTwo;
   var twoToOne;
   var channel1;
   var channel2;
   setUp(() {
     oneToTwo = new StreamController();
@@ skipping 282 matching lines @@
     test("emits an error, the error is sent only to the default channel", () {
       channel1.stream.listen(expectAsync((_) {}, count: 0),
           onError: expectAsync((error) => expect(error, equals("oh no"))));
       virtual1.stream.listen(expectAsync((_) {}, count: 0),
           onError: expectAsync((_) {}, count: 0));
 
       twoToOne.addError("oh no");
     });
   });
 }