Initial Kythe support for plugins

pkg/analyzer_plugin/test/plugin/kythe_mixin_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 'package:analyzer/file_system/file_system.dart';
+import 'package:analyzer/file_system/memory_file_system.dart';
+import 'package:analyzer/src/dart/analysis/driver.dart';
+import 'package:analyzer_plugin/plugin/kythe_mixin.dart';
+import 'package:analyzer_plugin/protocol/protocol_common.dart';
+import 'package:analyzer_plugin/protocol/protocol_generated.dart';
+import 'package:analyzer_plugin/src/utilities/kythe/entries.dart';
+import 'package:analyzer_plugin/utilities/kythe/entries.dart';
+import 'package:path/src/context.dart';
+import 'package:test/test.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+
+import 'mocks.dart';
+
+void main() {
+  defineReflectiveTests(KytheMixinTest);
+}
+
+@reflectiveTest
+class KytheMixinTest {
+  MemoryResourceProvider resourceProvider = new MemoryResourceProvider();
+
+  String packagePath1;
+  String filePath1;
+  ContextRoot contextRoot1;
+
+  MockChannel channel;
+  _TestServerPlugin plugin;
+
+  void setUp() {
+    Context pathContext = resourceProvider.pathContext;
+
+    packagePath1 = resourceProvider.convertPath('/package1');
+    filePath1 = pathContext.join(packagePath1, 'lib', 'test.dart');
+    resourceProvider.newFile(filePath1, '');
+    contextRoot1 = new ContextRoot(packagePath1, <String>[]);
+
+    channel = new MockChannel();
+    plugin = new _TestServerPlugin(resourceProvider);
+    plugin.start(channel);
+  }
+
+  test_handleEditGetAssists() async {
+    await plugin.handleAnalysisSetContextRoots(
+        new AnalysisSetContextRootsParams([contextRoot1]));
+
+    KytheGetKytheEntriesResult result = await plugin
+        .handleKytheGetKytheEntries(new KytheGetKytheEntriesParams(filePath1));
+    expect(result, isNotNull);
+    expect(result.entries, hasLength(3));
+  }
+}
+
+class _TestEntryContributor implements EntryContributor {
+  List<KytheEntry> entries;
+
+  _TestEntryContributor(this.entries);
+
+  @override
+  void computeEntries(EntryRequest request, EntryCollector collector) {
+    for (KytheEntry entry in entries) {
+      collector.addEntry(entry);
+    }
+  }
+}
+
+class _TestServerPlugin extends MockServerPlugin with EntryMixin {
+  _TestServerPlugin(ResourceProvider resourceProvider)
+      : super(resourceProvider);
+
+  PrioritizedSourceChange createChange() {
+    return new PrioritizedSourceChange(0, new SourceChange(''));
+  }
+
+  @override
+  List<EntryContributor> getEntryContributors(String path) {
+    KytheVName vName = new KytheVName('', '', '', '', '');
+    return <EntryContributor>[
+      new _TestEntryContributor(<KytheEntry>[
+        new KytheEntry(vName, '', vName, '', <int>[]),
+        new KytheEntry(vName, '', vName, '', <int>[])
+      ]),
+      new _TestEntryContributor(
+          <KytheEntry>[new KytheEntry(vName, '', vName, '', <int>[])])
+    ];
+  }
+
+  @override
+  Future<EntryRequest> getEntryRequest(
+      KytheGetKytheEntriesParams parameters) async {
+    AnalysisResult result = new AnalysisResult(
+        null, null, null, null, null, null, null, null, null, null, null);
+    return new DartEntryRequestImpl(resourceProvider, result);
+  }
+}