Extract constants into separate libarary.

pkg/analysis_server/test/domain_context_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.domain.context;
 
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/generated/source_io.dart';
 import 'package:analysis_server/src/analysis_server.dart';
+import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/domain_context.dart';
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/resource.dart';
 import 'package:unittest/unittest.dart';
 
 import 'mocks.dart';
 
 main() {
   group('ContextDomainHandlerTest', () {
     // TODO(scheglov) remove or move to the 'analysis' domain
@@ skipping 30 matching lines @@
 //    expect(server.contextWorkQueue, hasLength(1));
 //    expect(response.toJson(), equals({
 //      Response.ID: '0'
 //    }));
 //  }
 
   static void createChangeSet() {
     AnalysisServer server = new AnalysisServer(
         new MockServerChannel(),
         PhysicalResourceProvider.INSTANCE);
-    Request request = new Request('0', ContextDomainHandler.APPLY_CHANGES_NAME);
+    Request request = new Request('0', APPLY_CHANGES_NAME);
     ContextDomainHandler handler = new ContextDomainHandler(server);
     SourceFactory sourceFactory = new SourceFactory([new FileUriResolver()]);
     ChangeSet changeSet = handler.createChangeSet(request, sourceFactory,
-        new RequestDatum(request, ContextDomainHandler.CHANGES_PARAM, {
-      ContextDomainHandler.ADDED_PARAM: ['ffile:/one.dart'],
-      ContextDomainHandler.MODIFIED_PARAM: [],
-      ContextDomainHandler.REMOVED_PARAM: ['ffile:/two.dart',
-          'ffile:/three.dart']
+        new RequestDatum(request, CHANGES_PARAM, {
+      ADDED: ['ffile:/one.dart'],
+      MODIFIED_PARAM: [],
+      REMOVED: ['ffile:/two.dart', 'ffile:/three.dart']
     }));
     expect(changeSet.addedSources, hasLength(equals(1)));
     expect(changeSet.changedSources, hasLength(equals(0)));
     expect(changeSet.removedSources, hasLength(equals(2)));
   }
 
   static void createChangeSet_onlyAdded() {
     AnalysisServer server = new AnalysisServer(
         new MockServerChannel(),
         PhysicalResourceProvider.INSTANCE);
-    Request request = new Request('0', ContextDomainHandler.APPLY_CHANGES_NAME);
+    Request request = new Request('0', APPLY_CHANGES_NAME);
     ContextDomainHandler handler = new ContextDomainHandler(server);
     SourceFactory sourceFactory = new SourceFactory([new FileUriResolver()]);
     ChangeSet changeSet = handler.createChangeSet(request, sourceFactory,
-        new RequestDatum(request, ContextDomainHandler.CHANGES_PARAM, {
-      ContextDomainHandler.ADDED_PARAM: ['ffile:/one.dart'],
+        new RequestDatum(request, CHANGES_PARAM, {
+          ADDED: ['ffile:/one.dart'],
     }));
     expect(changeSet.addedSources, hasLength(equals(1)));
     expect(changeSet.changedSources, hasLength(equals(0)));
     expect(changeSet.removedSources, hasLength(equals(0)));
   }
 
   // TODO(scheglov) remove or move to the 'analysis' domain
 //  static void setOptions() {
 //    AnalysisServer server = new AnalysisServer(new MockServerChannel());
 //    String contextId = _createContext(server);
@@ skipping 49 matching lines @@
 //    Request request = new Request('0', ServerDomainHandler.CREATE_CONTEXT_METHOD);
 //    request.setParameter(ServerDomainHandler.SDK_DIRECTORY_PARAM, sdkPath);
 //    request.setParameter(AnalysisServer.CONTEXT_ID_PARAM, contextId);
 //    Response response = handler.handleRequest(request);
 //    if (response.error != null) {
 //      fail('Unexpected error: ${response.error.toJson()}');
 //    }
 //    return contextId;
 //  }
 }