Initial support for an explicit plugin list

pkg/analysis_server/test/src/plugin/plugin_watcher_test.dart

 // Copyright (c) 2017, 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.
 
 import 'dart:async';
 import 'dart:typed_data';
 
 import 'package:analysis_server/src/plugin/plugin_locator.dart';
 import 'package:analysis_server/src/plugin/plugin_manager.dart';
 import 'package:analysis_server/src/plugin/plugin_watcher.dart';
@@ skipping 27 matching lines @@
   PluginWatcher watcher;
 
   void setUp() {
     resourceProvider = new MemoryResourceProvider();
     manager = new TestPluginManager();
     watcher = new PluginWatcher(resourceProvider, manager);
   }
 
   test_addedDriver() async {
     String pkg1Path = resourceProvider.convertPath('/pkg1');
+    resourceProvider.newFile(
+        resourceProvider.convertPath('/pkg1/lib/test1.dart'), '');
+    resourceProvider.newFile(
+        resourceProvider.convertPath('/pkg2/lib/pkg2.dart'), '');
+    resourceProvider.newFile(
+        resourceProvider.convertPath('/pkg2/pubspec.yaml'), 'name: pkg2');
+    resourceProvider.newFile(
+        resourceProvider.convertPath(
+            '/pkg2/${PluginLocator.toolsFolderName}/${PluginLocator.defaultPluginFolderName}/bin/plugin.dart'),
+        '');
+
     ContextRoot contextRoot = new ContextRoot(pkg1Path, []);
     TestDriver driver = new TestDriver(resourceProvider, contextRoot);
+    driver.analysisOptions.enabledPluginNames = ['pkg2'];
     watcher.addedDriver(driver, contextRoot);
     expect(manager.addedContextRoots, isEmpty);
     //
     // Test to see whether the listener was configured correctly.
     //
     // Use a file in the package being analyzed.
     //
-    resourceProvider.newFile(
-        resourceProvider.convertPath('/pkg1/lib/test1.dart'), '');
-    await driver.computeResult('package:pkg1/test1.dart');
-    expect(manager.addedContextRoots, isEmpty);
+//    await driver.computeResult('package:pkg1/test1.dart');
+//    expect(manager.addedContextRoots, isEmpty);
     //
     // Use a file that imports a package with a plugin.
     //
-    resourceProvider.newFile(
-        resourceProvider.convertPath('/pkg2/lib/pkg2.dart'), '');
-    resourceProvider.newFile(
-        resourceProvider.convertPath('/pkg2/pubspec.yaml'), 'name: pkg2');
-    resourceProvider.newFile(
-        resourceProvider.convertPath(
-            '/pkg2/${PluginLocator.toolsFolderName}/${PluginLocator.defaultPluginFolderName}/bin/plugin.dart'),
-        '');
-    await driver.computeResult('package:pkg2/pk2.dart');
+//    await driver.computeResult('package:pkg2/pk2.dart');
     //
     // Wait until the timer associated with the driver's FileSystemState is
     // guaranteed to have expired and the list of changed files will have been
     // delivered.
     //
     await new Future.delayed(new Duration(seconds: 1));
     expect(manager.addedContextRoots, hasLength(1));
   }
 
   void test_creation() {
@@ skipping 10 matching lines @@
     expect(manager.removedContextRoots, equals([contextRoot]));
   }
 }
 
 class TestDriver implements AnalysisDriver {
   final MemoryResourceProvider resourceProvider;
 
   SourceFactory sourceFactory;
   FileSystemState fsState;
   AnalysisSession currentSession;
+  AnalysisOptionsImpl analysisOptions = new AnalysisOptionsImpl();
 
   final _resultController = new StreamController<AnalysisResult>();
 
   TestDriver(this.resourceProvider, ContextRoot contextRoot) {
     path.Context pathContext = resourceProvider.pathContext;
     MockSdk sdk = new MockSdk(resourceProvider: resourceProvider);
     String packageName = pathContext.basename(contextRoot.root);
     String libPath = pathContext.join(contextRoot.root, 'lib');
     sourceFactory = new SourceFactory([
       new DartUriResolver(sdk),
@@ skipping 40 matching lines @@
     return null;
   }
 
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 
   @override
   void removedContextRoot(ContextRoot contextRoot) {
     removedContextRoots.add(contextRoot);
   }
 }