Add a message for analysis server to indicate a successful connection.

pkg/analysis_server/test/socket_server_test.dart

Index: pkg/analysis_server/test/socket_server_test.dart
diff --git a/pkg/analysis_server/test/socket_server_test.dart b/pkg/analysis_server/test/socket_server_test.dart
index 84f76f333e1ca6d55af2d02eb5b241459ae24a56..99ee0d1d2441bb47f7f24e142e7200c659eaf96a 100644
--- a/pkg/analysis_server/test/socket_server_test.dart
+++ b/pkg/analysis_server/test/socket_server_test.dart
@@ -8,6 +8,7 @@ import 'dart:async';
 
 import 'mocks.dart';
 
+import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/domain_server.dart';
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/socket_server.dart';
@@ -27,12 +28,16 @@ class SocketServerTest {
     SocketServer server = new SocketServer();
     MockServerChannel channel = new MockServerChannel();
     server.createAnalysisServer(channel);
-    channel.expectMsgCount(responseCount: 0);
+    channel.expectMsgCount(responseCount: 1);
+    expect(channel.responsesReceived[0].id, equals(''));
+    expect(channel.responsesReceived[0].error, isNull);
+    expect(channel.responsesReceived[0].getResult(
+        AnalysisServer.CONNECTED_RESULT), equals(true));
     return channel.sendRequest(new Request('0',
         ServerDomainHandler.SHUTDOWN_METHOD)).then((Response response) {
       expect(response.id, equals('0'));
       expect(response.error, isNull);
-      channel.expectMsgCount(responseCount: 1);
+      channel.expectMsgCount(responseCount: 2);
     });
   }
 
@@ -41,8 +46,12 @@ class SocketServerTest {
     MockServerChannel channel1 = new MockServerChannel();
     MockServerChannel channel2 = new MockServerChannel();
     server.createAnalysisServer(channel1);
+    expect(channel1.responsesReceived[0].id, equals(''));
+    expect(channel1.responsesReceived[0].error, isNull);
+    expect(channel1.responsesReceived[0].getResult(
+        AnalysisServer.CONNECTED_RESULT), equals(true));
     server.createAnalysisServer(channel2);
-    channel1.expectMsgCount(responseCount: 0);
+    channel1.expectMsgCount(responseCount: 1);
     channel2.expectMsgCount(responseCount: 1);
     expect(channel2.responsesReceived[0].id, equals(''));
     expect(channel2.responsesReceived[0].error, isNotNull);