Upgrading tests with unittest deprecations

tests/isolate/raw_port_test.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.
 
 // Test RawReceivePort.
 
 library raw_port_test;
 import 'dart:isolate';
 import 'package:unittest/unittest.dart';
 import 'remote_unittest_helper.dart';
 
 
 void remote(SendPort port) {
   port.send("reply");
 }
 
 void remote2(SendPort port) {
   port.send("reply 1");
   port.send("reply 2");
 }
 
 main([args, port]) {
   if (testRemote(main, port)) return;
 
   test("raw receive", () {
     RawReceivePort port = new RawReceivePort();
     Isolate.spawn(remote, port.sendPort);
-    port.handler = expectAsync1((v) {
+    port.handler = expectAsync((v) {
       expect(v, "reply");
       port.close();
     });
   });
 
   test("raw receive twice - change handler", () {
     RawReceivePort port = new RawReceivePort();
     Isolate.spawn(remote2, port.sendPort);
-    port.handler = expectAsync1((v) {
+    port.handler = expectAsync((v) {
       expect(v, "reply 1");
-      port.handler = expectAsync1((v) {
+      port.handler = expectAsync((v) {
         expect(v, "reply 2");
         port.close();
       });
     });
   });
 
   test("from-raw-port", () {
     RawReceivePort rawPort = new RawReceivePort();
     Isolate.spawn(remote, rawPort.sendPort);
-    rawPort.handler = expectAsync1((v) {
+    rawPort.handler = expectAsync((v) {
       expect(v, "reply");
       ReceivePort port = new ReceivePort.fromRawReceivePort(rawPort);
       Isolate.spawn(remote, rawPort.sendPort);
       Isolate.spawn(remote, port.sendPort);
       int ctr = 2;
-      port.listen(expectAsync1((v) {
+      port.listen(expectAsync((v) {
                     expect(v, "reply");
                     ctr--;
                     if (ctr == 0) port.close();
                   }, count: 2),
-                  onDone: expectAsync0((){}));
+                  onDone: expectAsync((){}));
     });
   });
 }