Support for parsing HTML in the new task model

pkg/analyzer/test/src/context/abstract_context.dart

 // Copyright (c) 2015, 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.src.task.abstract_context_test;
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/context/context.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart'
     hide AnalysisCache, AnalysisContextImpl, AnalysisTask;
 import 'package:analyzer/src/generated/sdk.dart';
 import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/task/driver.dart';
+import 'package:analyzer/task/model.dart';
 import 'package:unittest/unittest.dart';
 
 import 'mock_sdk.dart';
 
 class AbstractContextTest {
   MemoryResourceProvider resourceProvider = new MemoryResourceProvider();
 
   DartSdk sdk = new MockSdk();
   SourceFactory sourceFactory;
   AnalysisContextImpl context;
   AnalysisCache analysisCache;
   AnalysisDriver analysisDriver;
 
+  AnalysisTask task;
+  Map<ResultDescriptor<dynamic>, dynamic> oldOutputs;
+  Map<ResultDescriptor<dynamic>, dynamic> outputs;
+
   Source addSource(String path, String contents) {
     Source source = newSource(path, contents);
     ChangeSet changeSet = new ChangeSet();
     changeSet.addedSource(source);
     context.applyChanges(changeSet);
     return source;
   }
 
   /**
    * Assert that the given [elements] has the same number of items as the number
@@ skipping 17 matching lines @@
         for (Element elem in elements) {
           buffer.write(elem.name);
           buffer.write(", ");
         }
         fail(buffer.toString());
       }
     }
     expect(elements, hasLength(names.length));
   }
 
+  /**
+   * Compute the given [result] for the given [target].
+   */
+  void computeResult(AnalysisTarget target, ResultDescriptor result) {
+    oldOutputs = outputs;
+    task = analysisDriver.computeResult(target, result);
+    expect(task, isNotNull);
+    expect(task.caughtException, isNull);
+    outputs = task.outputs;
+  }
+
   AnalysisContextImpl createAnalysisContext() {
     return new AnalysisContextImpl();
   }
 
   Source newSource(String path, [String content = '']) {
     File file = resourceProvider.newFile(path, content);
     return file.createSource();
   }
 
   List<Source> newSources(Map<String, String> sourceMap) {
@@ skipping 12 matching lines @@
       new ResourceUriResolver(resourceProvider)
     ]);
     context = createAnalysisContext();
     context.sourceFactory = sourceFactory;
     analysisCache = context.analysisCache;
     analysisDriver = context.driver;
   }
 
   void tearDown() {}
 }