Remove package:unittest from some tests

tests/lib/async/stream_single_to_multi_subscriber_test.dart

Index: tests/lib/async/stream_single_to_multi_subscriber_test.dart
diff --git a/tests/lib/async/stream_single_to_multi_subscriber_test.dart b/tests/lib/async/stream_single_to_multi_subscriber_test.dart
index 20638812a5e77ce5d39f5162962279fc5d1c167f..5998f3ad427c68fb4cc5404aafa1b6bcecab53a8 100644
--- a/tests/lib/async/stream_single_to_multi_subscriber_test.dart
+++ b/tests/lib/async/stream_single_to_multi_subscriber_test.dart
@@ -5,9 +5,8 @@
 // Test the basic StreamController and StreamController.singleSubscription.
 library stream_single_test;
 
-import "package:expect/expect.dart";
 import 'dart:async';
-import 'package:unittest/unittest.dart';
+import 'package:test/test.dart';
 import 'event_helper.dart';
 
 main() {
@@ -15,8 +14,8 @@ main() {
     StreamController c = new StreamController<int>(sync: true);
     Stream<int> multi = c.stream.asBroadcastStream();
     // Listen twice.
-    multi.listen(expectAsync((v) => Expect.equals(42, v)));
-    multi.listen(expectAsync((v) => Expect.equals(42, v)));
+    multi.listen(expectAsync((v) => expect(42, equals(v))));
+    multi.listen(expectAsync((v) => expect(42, equals(v))));
     c.add(42);
   });
 
@@ -27,10 +26,10 @@ main() {
     Events actual1 = new Events.capture(multi);
     Events actual2 = new Events.capture(multi);
     actual1.onDone(expectAsync(() {
-      Expect.listEquals(expected.events, actual1.events);
+      expect(expected.events, equals(actual1.events));
     }));
     actual2.onDone(expectAsync(() {
-      Expect.listEquals(expected.events, actual2.events);
+      expect(expected.events, equals(actual2.events));
     }));
     expected.replay(c);
   });
@@ -42,10 +41,10 @@ main() {
     Events actual1 = new Events.capture(multi);
     Events actual2 = new Events.capture(multi);
     actual1.onDone(expectAsync(() {
-      Expect.listEquals(expected.events, actual1.events);
+      expect(expected.events, equals(actual1.events));
     }));
     actual2.onDone(expectAsync(() {
-      Expect.listEquals(expected.events, actual2.events);
+      expect(expected.events, equals(actual2.events));
     }));
     expected.replay(c);
   });