Return RequestErrorCode.NO_INDEX_GENERATED for search/refactoring requests.

pkg/analysis_server/test/edit/refactoring_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.edit.refactoring;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/edit/edit_domain.dart';
 import 'package:analysis_server/src/protocol.dart';
@@ skipping 10 matching lines @@
   groupSep = ' | ';
   runReflectiveTests(ConvertGetterMethodToMethodTest);
   runReflectiveTests(ConvertMethodToGetterTest);
   runReflectiveTests(ExtractLocalVariableTest);
   runReflectiveTests(ExtractMethodTest);
   runReflectiveTests(GetAvailableRefactoringsTest);
   runReflectiveTests(InlineLocalTest);
   runReflectiveTests(InlineMethodTest);
   runReflectiveTests(MoveFileTest);
   runReflectiveTests(RenameTest);
+  runReflectiveTests(_NoSearchEngine);
 }
 
 
 @reflectiveTest
 class ConvertGetterMethodToMethodTest extends _AbstractGetRefactoring_Test {
   test_function() {
     addTestFile('''
 int get test => 42;
 main() {
   var a = 1 + test;
@@ skipping 590 matching lines @@
    * Tests that there is a RENAME refactoring available at the [search] offset.
    */
   Future assertHasRenameRefactoring(String code, String search) {
     addTestFile(code);
     return waitForTasksFinished().then((_) {
       List<RefactoringKind> kinds = getRefactoringsAtString(search);
       expect(kinds, contains(RefactoringKind.RENAME));
     });
   }
 
+  @override
+  Index createIndex() {
+    return createLocalMemoryIndex();
+  }
+
   /**
    * Returns the list of available refactorings for the given [offset] and
    * [length].
    */
   List<RefactoringKind> getRefactorings(int offset, int length) {
     Request request = new EditGetAvailableRefactoringsParams(
         testFile,
         offset,
         length).toRequest('0');
     Response response = handleSuccessfulRequest(request);
@@ skipping 1086 matching lines @@
   }
 
   @override
   void setUp() {
     super.setUp();
     server.handlers = [new EditDomainHandler(server),];
     createProject();
     handler = new EditDomainHandler(server);
   }
 }
+
+
+@reflectiveTest
+class _NoSearchEngine extends _AbstractGetRefactoring_Test {
+  @override
+  Index createIndex() {
+    return null;
+  }
+
+  test_getAvailableRefactorings() async {
+    addTestFile('''
+main() {
+  print(1 + 2);
+}
+''');
+    await waitForTasksFinished();
+    Request request =
+        new EditGetAvailableRefactoringsParams(testFile, 0, 0).toRequest('0');
+    return _assertErrorResposeNoIndex(request);
+  }
+
+  test_getRefactoring_noSearchEngine() async {
+    addTestFile('''
+main() {
+  print(1 + 2);
+}
+''');
+    await waitForTasksFinished();
+    Request request = new EditGetRefactoringParams(
+        RefactoringKind.EXTRACT_LOCAL_VARIABLE,
+        testFile,
+        0,
+        0,
+        true).toRequest('0');
+    return _assertErrorResposeNoIndex(request);
+  }
+
+  _assertErrorResposeNoIndex(Request request) async {
+    Response response = await serverChannel.sendRequest(request);
+    expect(response.error, isNotNull);
+    expect(response.error.code, RequestErrorCode.NO_INDEX_GENERATED);
+  }
+}