add server.status notification

pkg/analysis_server/test/analysis_server_test.dart

 // Copyright (c) 2014, 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 test.analysis_server;
 
 import 'dart:async';
 
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/source_io.dart';
@@ skipping 64 matching lines @@
 //    LineInfo lineInfo = new LineInfo([0]);
 //    AnalysisError analysisError = new AnalysisError.con1(source,
 //        CompileTimeErrorCode.CONST_CONSTRUCTOR_WITH_NON_CONST_SUPER, ['Foo']);
 //    changeNoticeImpl.setErrors([analysisError], lineInfo);
 //    context.when(callsTo('performAnalysisTask')).thenReturn(
 //        new AnalysisResult([changeNoticeImpl], 0, 'myClass', 0));
 //    context.when(callsTo('performAnalysisTask')).thenReturn(
 //        new AnalysisResult(null, 0, null, 0));
 //    return pumpEventQueue().then((_) {
 //      context.getLogs(callsTo('performAnalysisTask')).verify(happenedExactly(2));
-//      var notifications = channel.notificationsReceived;
-//      expect(notifications, hasLength(2));
+//      List<Notification> notifications = channel.notificationsReceived;
+//      expect(notifications, hasLength(4));
+//
 //      expect(notifications[0].event, equals('server.connected'));
-//      expect(notifications[1].event, equals('context.errors'));
-//      expect(notifications[1].params['source'], equals('foo.dart'));
-//      expect(notifications[1].params['contextId'], equals('context-27'));
-//      List<AnalysisError> errors = notifications[1].params['errors'];
+//
+//      assertStatusNotification(notifications[1], true);
+//
+//      expect(notifications[2].event, equals('context.errors'));
+//      expect(notifications[2].params['source'], equals('foo.dart'));
+//      expect(notifications[2].params['contextId'], equals('context-27'));
+//      List<AnalysisError> errors = notifications[2].params['errors'];
 //      expect(errors, hasLength(1));
 //      expect(errors[0], equals(AnalysisServer.errorToJson(analysisError)));
+//
+//      assertStatusNotification(notifications[3], false);
 //    });
 //  }
+//
+//  static void assertStatusNotification(Notification notification, bool expectAnalyzing) {
+//    expect(notification.event, equals('server.status'));
+//    Map<String, Object> analysis = notification.params['analysis'];
+//    expect(analysis['analyzing'], expectAnalyzing);
+//    expect(analysis.containsKey('analysisTarget'), expectAnalyzing);
+//    if (expectAnalyzing) {
+//      var analysisTarget = analysis['analysisTarget'];
+//      expect((analysisTarget is String), isTrue);
+//      expect(analysisTarget.length > 0, isTrue);
+//    }
+//  }
 
   static Future addContextToWorkQueue_twice() {
     // TODO(scheglov) remove after implementing "setAnalysisRoots" API
     return new Future.value();
 //    // The context should only be asked to perform its analysis task once.
 //    MockAnalysisContext context = new MockAnalysisContext();
 //    server.addContextToWorkQueue(context);
 //    server.addContextToWorkQueue(context);
 //    context.when(callsTo('performAnalysisTask')).thenReturn(
 //        new AnalysisResult(null, 0, null, 0));
@@ skipping 105 matching lines @@
   @override
   Response handleRequest(Request request) {
     if (request.method == 'echo') {
       var response = new Response(request.id);
       response.setResult('echo', true);
       return response;
     }
     return null;
   }
 }