pkg/analysis_server/test/domain_completion_test.dart - sdk.git - Git at Google

 // 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.completion;

 import 'dart:async';

 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/domain_completion.dart';
 import 'package:analysis_server/src/provisional/completion/completion_core.dart';
 import 'package:analysis_server/src/provisional/completion/dart/completion_dart.dart';
 import 'package:analysis_server/src/services/completion/dart/completion_manager.dart';
 import 'package:analysis_server/src/services/completion/dart/contribution_sorter.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';

 import 'analysis_abstract.dart';
 import 'domain_completion_util.dart';
 import 'mocks.dart' show pumpEventQueue;

 main() {
   defineReflectiveSuite(() {
     defineReflectiveTests(CompletionDomainHandlerTest);
     defineReflectiveTests(_NoSearchEngine);
   });
 }

 @reflectiveTest
 class CompletionDomainHandlerTest extends AbstractCompletionDomainTest {
   test_ArgumentList_constructor_named_param_label() async {
     addTestFile('main() { new A(^);}'
         'class A { A({one, two}) {} }');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'one: ',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'two: ',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     expect(suggestions, hasLength(2));
   }

   test_ArgumentList_factory_named_param_label() async {
     addTestFile('main() { new A(^);}'
         'class A { factory A({one, two}) => null; }');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'one: ',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'two: ',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     expect(suggestions, hasLength(2));
   }

   test_ArgumentList_imported_function_named_param() async {
     addTestFile('main() { int.parse("16", ^);}');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'radix: ',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'onError: ',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     expect(suggestions, hasLength(2));
   }

   test_ArgumentList_imported_function_named_param1() async {
     addTestFile('main() { foo(o^);} foo({one, two}) {}');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'one: ',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'two: ',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     expect(suggestions, hasLength(2));
   }

   test_ArgumentList_imported_function_named_param2() async {
     addTestFile('mainx() {A a = new A(); a.foo(one: 7, ^);}'
         'class A { foo({one, two}) {} }');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'two: ',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     expect(suggestions, hasLength(1));
   }

   test_ArgumentList_imported_function_named_param_label1() async {
     addTestFile('main() { int.parse("16", r^: 16);}');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'radix',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'onError',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     expect(suggestions, hasLength(2));
   }

   test_ArgumentList_imported_function_named_param_label3() async {
     addTestFile('main() { int.parse("16", ^: 16);}');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'radix: ',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'onError: ',
         relevance: DART_RELEVANCE_NAMED_PARAMETER);
     expect(suggestions, hasLength(2));
   }

   test_catch() async {
     addTestFile('main() {try {} ^}');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'on',
         relevance: DART_RELEVANCE_KEYWORD);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'catch',
         relevance: DART_RELEVANCE_KEYWORD);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'finally',
         relevance: DART_RELEVANCE_KEYWORD);
     expect(suggestions, hasLength(3));
   }

   test_catch2() async {
     addTestFile('main() {try {} on Foo {} ^}');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'on',
         relevance: DART_RELEVANCE_KEYWORD);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'catch',
         relevance: DART_RELEVANCE_KEYWORD);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'finally',
         relevance: DART_RELEVANCE_KEYWORD);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'for',
         relevance: DART_RELEVANCE_KEYWORD);
     suggestions.firstWhere(
         (CompletionSuggestion suggestion) =>
             suggestion.kind != CompletionSuggestionKind.KEYWORD, orElse: () {
       fail('Expected suggestions other than keyword suggestions');
     });
   }

   test_catch3() async {
     addTestFile('main() {try {} catch (e) {} finally {} ^}');
     await getSuggestions();
     assertNoResult('on');
     assertNoResult('catch');
     assertNoResult('finally');
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'for',
         relevance: DART_RELEVANCE_KEYWORD);
     suggestions.firstWhere(
         (CompletionSuggestion suggestion) =>
             suggestion.kind != CompletionSuggestionKind.KEYWORD, orElse: () {
       fail('Expected suggestions other than keyword suggestions');
     });
   }

   test_catch4() async {
     addTestFile('main() {try {} finally {} ^}');
     await getSuggestions();
     assertNoResult('on');
     assertNoResult('catch');
     assertNoResult('finally');
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'for',
         relevance: DART_RELEVANCE_KEYWORD);
     suggestions.firstWhere(
         (CompletionSuggestion suggestion) =>
             suggestion.kind != CompletionSuggestionKind.KEYWORD, orElse: () {
       fail('Expected suggestions other than keyword suggestions');
     });
   }

   test_catch5() async {
     addTestFile('main() {try {} ^ finally {}}');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'on',
         relevance: DART_RELEVANCE_KEYWORD);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'catch',
         relevance: DART_RELEVANCE_KEYWORD);
     expect(suggestions, hasLength(2));
   }

   test_html() {
     testFile = '/project/web/test.html';
     addTestFile('''
       <html>^</html>
     ''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       expect(suggestions, hasLength(0));
     });
   }

   test_import_uri_with_trailing() {
     addFile('/project/bin/testA.dart', 'library libA;');
     addTestFile('''
       import '/project/bin/t^.dart';
       main() {}''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset - 14));
       expect(replacementLength, equals(5 + 14));
       assertHasResult(
           CompletionSuggestionKind.IMPORT, '/project/bin/testA.dart');
       assertNoResult('test');
     });
   }

   test_imports() {
     addTestFile('''
       import 'dart:html';
       main() {^}
     ''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'HtmlElement');
       assertNoResult('test');
     });
   }

   test_imports_aborted_new_request() async {
     addTestFile('''
         class foo { }
         c^''');

     // Make a request for suggestions
     Request request1 =
         new CompletionGetSuggestionsParams(testFile, completionOffset)
             .toRequest('7');
     Response response1 = await waitResponse(request1);
     var result1 = new CompletionGetSuggestionsResult.fromResponse(response1);
     var completionId1 = result1.id;
     assertValidId(completionId1);

     // Perform some analysis but assert that no suggestions have yet been made
     completionId = completionId1;
     await pumpEventQueue(25);
     expect(suggestionsDone, isFalse);
     expect(suggestions, hasLength(0));

     // Make another request before the first request completes
     Request request2 =
         new CompletionGetSuggestionsParams(testFile, completionOffset)
             .toRequest('8');
     Response response2 = await waitResponse(request2);
     var result2 = new CompletionGetSuggestionsResult.fromResponse(response2);
     var completionId2 = result2.id;
     assertValidId(completionId2);

     // Wait for both sets of suggestions
     completionId = completionId2;
     await pumpEventQueue();
     expect(allSuggestions[completionId1], hasLength(0));
     expect(allSuggestions[completionId2], same(suggestions));
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'class',
         relevance: DART_RELEVANCE_HIGH);
   }

   test_imports_aborted_source_changed() async {
     addTestFile('''
         class foo { }
         c^''');

     // Make a request for suggestions
     Request request =
         new CompletionGetSuggestionsParams(testFile, completionOffset)
             .toRequest('0');
     Response response = await waitResponse(request);
     completionId = response.id;
     assertValidId(completionId);

     // Perform some analysis but assert that no suggestions have yet been made
     await pumpEventQueue(25);
     expect(suggestionsDone, isFalse);
     expect(suggestions, hasLength(0));

     // Simulate user deleting text after request but before suggestions returned
     server.updateContent('uc1', {testFile: new AddContentOverlay(testCode)});
     server.updateContent('uc2', {
       testFile: new ChangeContentOverlay(
           [new SourceEdit(completionOffset - 1, 1, '')])
     });

     // Expect the completion domain to discard request because source changed
     await pumpEventQueue().then((_) {
       expect(suggestionsDone, isTrue);
     });
     expect(suggestions, hasLength(0));
   }

   test_imports_incremental() async {
     addTestFile('''library foo;
       e^
       import "dart:async";
       import "package:foo/foo.dart";
       class foo { }''');
     await waitForTasksFinished();
     server.updateContent('uc1', {testFile: new AddContentOverlay(testCode)});
     server.updateContent('uc2', {
       testFile:
           new ChangeContentOverlay([new SourceEdit(completionOffset, 0, 'xp')])
     });
     completionOffset += 2;
     await getSuggestions();
     expect(replacementOffset, completionOffset - 3);
     expect(replacementLength, 3);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'export \'\';',
         selectionOffset: 8, relevance: DART_RELEVANCE_HIGH);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'import \'\';',
         selectionOffset: 8, relevance: DART_RELEVANCE_HIGH);
     assertNoResult('extends');
     assertNoResult('library');
   }

   test_imports_partial() async {
     addTestFile('''^
       import "package:foo/foo.dart";
       import "package:bar/bar.dart";
       class Baz { }''');

     // Wait for analysis then edit the content
     await waitForTasksFinished();
     String revisedContent = testCode.substring(0, completionOffset) +
         'i' +
         testCode.substring(completionOffset);
     ++completionOffset;
     server.handleRequest(new AnalysisUpdateContentParams(
         {testFile: new AddContentOverlay(revisedContent)}).toRequest('add1'));

     // Request code completion immediately after edit
     Response response = await waitResponse(
         new CompletionGetSuggestionsParams(testFile, completionOffset)
             .toRequest('0'));
     completionId = response.id;
     assertValidId(completionId);
     await waitForTasksFinished();
     expect(replacementOffset, completionOffset - 1);
     expect(replacementLength, 1);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'library',
         relevance: DART_RELEVANCE_HIGH);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'import \'\';',
         selectionOffset: 8, relevance: DART_RELEVANCE_HIGH);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'export \'\';',
         selectionOffset: 8, relevance: DART_RELEVANCE_HIGH);
     assertHasResult(CompletionSuggestionKind.KEYWORD, 'part \'\';',
         selectionOffset: 6, relevance: DART_RELEVANCE_HIGH);
     assertNoResult('extends');
   }

   test_imports_prefixed() {
     addTestFile('''
       import 'dart:html' as foo;
       main() {^}
     ''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
       assertHasResult(CompletionSuggestionKind.IDENTIFIER, 'foo');
       assertNoResult('HtmlElement');
       assertNoResult('test');
     });
   }

   test_imports_prefixed2() {
     addTestFile('''
       import 'dart:html' as foo;
       main() {foo.^}
     ''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'HtmlElement');
       assertNoResult('test');
     });
   }

   test_inComment_block_beforeNode() async {
     addTestFile('''
   main(aaa, bbb) {
     /* text ^ */
     print(42);
   }
   ''');
     await getSuggestions();
     expect(suggestions, isEmpty);
   }

   test_inComment_endOfLine_beforeNode() async {
     addTestFile('''
   main(aaa, bbb) {
     // text ^
     print(42);
   }
   ''');
     await getSuggestions();
     expect(suggestions, isEmpty);
   }

   test_inComment_endOfLine_beforeToken() async {
     addTestFile('''
   main(aaa, bbb) {
     // text ^
   }
   ''');
     await getSuggestions();
     expect(suggestions, isEmpty);
   }

   test_inDartDoc1() async {
     addTestFile('''
   /// ^
   main(aaa, bbb) {}
   ''');
     await getSuggestions();
     expect(suggestions, isEmpty);
   }

   test_inDartDoc2() async {
     addTestFile('''
   /// Some text^
   main(aaa, bbb) {}
   ''');
     await getSuggestions();
     expect(suggestions, isEmpty);
   }

   test_inDartDoc_reference1() async {
     addFile(
         '/testA.dart',
         '''
   part of libA;
   foo(bar) => 0;''');
     addTestFile('''
   library libA;
   part "/testA.dart";
   import "dart:math";
   /// The [^]
   main(aaa, bbb) {}
   ''');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.IDENTIFIER, 'main',
         relevance: DART_RELEVANCE_LOCAL_FUNCTION);
     assertHasResult(CompletionSuggestionKind.IDENTIFIER, 'foo',
         relevance: DART_RELEVANCE_LOCAL_FUNCTION);
     assertHasResult(CompletionSuggestionKind.IDENTIFIER, 'min');
   }

   test_inDartDoc_reference2() async {
     addTestFile('''
   /// The [m^]
   main(aaa, bbb) {}
   ''');
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.IDENTIFIER, 'main',
         relevance: DART_RELEVANCE_LOCAL_FUNCTION);
   }

   test_inherited() {
     addFile('/libA.dart', 'class A {m() {}}');
     addTestFile('''
 import '/libA.dart';
 class B extends A {
   x() {^}
 }
 ''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'm');
     });
   }

   test_invocation() {
     addTestFile('class A {b() {}} main() {A a; a.^}');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'b');
     });
   }

   test_invocation_sdk_relevancy_off() {
     var originalSorter = DartCompletionManager.contributionSorter;
     var mockSorter = new MockRelevancySorter();
     DartCompletionManager.contributionSorter = mockSorter;
     addTestFile('main() {Map m; m.^}');
     return getSuggestions().then((_) {
       // Assert that the CommonUsageComputer has been replaced
       expect(suggestions.any((s) => s.relevance == DART_RELEVANCE_COMMON_USAGE),
           isFalse);
       DartCompletionManager.contributionSorter = originalSorter;
       mockSorter.enabled = false;
     });
   }

   test_invocation_sdk_relevancy_on() {
     addTestFile('main() {Map m; m.^}');
     return getSuggestions().then((_) {
       // Assert that the CommonUsageComputer is working
       expect(suggestions.any((s) => s.relevance == DART_RELEVANCE_COMMON_USAGE),
           isTrue);
     });
   }

   test_invocation_withTrailingStmt() {
     addTestFile('class A {b() {}} main() {A a; a.^ int x = 7;}');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'b');
     });
   }

   test_keyword() {
     addTestFile('library A; cl^');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset - 2));
       expect(replacementLength, equals(2));
       assertHasResult(CompletionSuggestionKind.KEYWORD, 'export \'\';',
           selectionOffset: 8, relevance: DART_RELEVANCE_HIGH);
       assertHasResult(CompletionSuggestionKind.KEYWORD, 'class',
           relevance: DART_RELEVANCE_HIGH);
     });
   }

   test_local_named_constructor() {
     addTestFile('class A {A.c(); x() {new A.^}}');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'c');
       assertNoResult('A');
     });
   }

   test_local_override() {
     addFile('/libA.dart', 'class A {m() {}}');
     addTestFile('''
 import '/libA.dart';
 class B extends A {
   m() {}
   x() {^}
 }
 ''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'm',
           relevance: DART_RELEVANCE_LOCAL_METHOD);
     });
   }

   test_locals() {
     addTestFile('class A {var a; x() {var b;^}} class DateTime { }');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'A');
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'a',
           relevance: DART_RELEVANCE_LOCAL_FIELD);
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'b',
           relevance: DART_RELEVANCE_LOCAL_VARIABLE);
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'x',
           relevance: DART_RELEVANCE_LOCAL_METHOD);
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'DateTime');
     });
   }

   test_offset_past_eof() async {
     addTestFile('main() { }', offset: 300);
     Request request =
         new CompletionGetSuggestionsParams(testFile, completionOffset)
             .toRequest('0');
     Response response = await waitResponse(request);
     expect(response.id, '0');
     expect(response.error.code, RequestErrorCode.INVALID_PARAMETER);
   }

   test_overrides() {
     addFile('/libA.dart', 'class A {m() {}}');
     addTestFile('''
 import '/libA.dart';
 class B extends A {m() {^}}
 ''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'm',
           relevance: DART_RELEVANCE_LOCAL_METHOD);
     });
   }

   test_partFile() {
     addFile(
         '/project/bin/testA.dart',
         '''
       library libA;
       part "$testFile";
       import 'dart:html';
       class A { }
     ''');
     addTestFile('''
       part of libA;
       main() {^}''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'HtmlElement');
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'A');
       assertNoResult('test');
     });
   }

   test_partFile2() {
     addFile(
         '/testA.dart',
         '''
       part of libA;
       class A { }''');
     addTestFile('''
       library libA;
       part "/testA.dart";
       import 'dart:html';
       main() {^}
     ''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'HtmlElement');
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'A');
       assertNoResult('test');
     });
   }

   test_simple() {
     addTestFile('''
       void main() {
         ^
       }
     ''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
       assertNoResult('HtmlElement');
       assertNoResult('test');
     });
   }

   test_static() {
     addTestFile('class A {static b() {} c() {}} main() {A.^}');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset));
       expect(replacementLength, equals(0));
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'b');
       assertNoResult('c');
     });
   }

   test_topLevel() {
     addTestFile('''
       typedef foo();
       var test = '';
       main() {tes^t}
     ''');
     return getSuggestions().then((_) {
       expect(replacementOffset, equals(completionOffset - 3));
       expect(replacementLength, equals(4));
       // Suggestions based upon imported elements are partially filtered
       //assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
       assertHasResult(CompletionSuggestionKind.INVOCATION, 'test',
           relevance: DART_RELEVANCE_LOCAL_TOP_LEVEL_VARIABLE);
       assertNoResult('HtmlElement');
     });
   }
 }

 class MockRelevancySorter implements DartContributionSorter {
   bool enabled = true;

   @override
   Future sort(
       CompletionRequest request, Iterable<CompletionSuggestion> suggestions) {
     if (!enabled) {
       throw 'unexpected sort';
     }
     return new Future.value();
   }
 }

 @reflectiveTest
 class _NoSearchEngine extends AbstractAnalysisTest {
   @override
   void setUp() {
     super.setUp();
     createProject();
     handler = new CompletionDomainHandler(server);
   }

   test_noSearchEngine() async {
     addTestFile('''
 main() {
   ^
 }
     ''');
     await waitForTasksFinished();
     Request request =
         new CompletionGetSuggestionsParams(testFile, 0).toRequest('0');
     Response response = handler.handleRequest(request);
     expect(response.error, isNotNull);
     expect(response.error.code, RequestErrorCode.NO_INDEX_GENERATED);
   }
 }
	// 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.completion;

	import 'dart:async';

	import 'package:analysis_server/plugin/protocol/protocol.dart';
	import 'package:analysis_server/src/domain_completion.dart';
	import 'package:analysis_server/src/provisional/completion/completion_core.dart';
	import 'package:analysis_server/src/provisional/completion/dart/completion_dart.dart';
	import 'package:analysis_server/src/services/completion/dart/completion_manager.dart';
	import 'package:analysis_server/src/services/completion/dart/contribution_sorter.dart';
	import 'package:test/test.dart';
	import 'package:test_reflective_loader/test_reflective_loader.dart';

	import 'analysis_abstract.dart';
	import 'domain_completion_util.dart';
	import 'mocks.dart' show pumpEventQueue;

	main() {
	defineReflectiveSuite(() {
	defineReflectiveTests(CompletionDomainHandlerTest);
	defineReflectiveTests(_NoSearchEngine);
	});
	}

	@reflectiveTest
	class CompletionDomainHandlerTest extends AbstractCompletionDomainTest {
	test_ArgumentList_constructor_named_param_label() async {
	addTestFile('main() { new A(^);}'
	'class A { A({one, two}) {} }');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'one: ',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'two: ',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	expect(suggestions, hasLength(2));
	}

	test_ArgumentList_factory_named_param_label() async {
	addTestFile('main() { new A(^);}'
	'class A { factory A({one, two}) => null; }');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'one: ',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'two: ',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	expect(suggestions, hasLength(2));
	}

	test_ArgumentList_imported_function_named_param() async {
	addTestFile('main() { int.parse("16", ^);}');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'radix: ',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'onError: ',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	expect(suggestions, hasLength(2));
	}

	test_ArgumentList_imported_function_named_param1() async {
	addTestFile('main() { foo(o^);} foo({one, two}) {}');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'one: ',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'two: ',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	expect(suggestions, hasLength(2));
	}

	test_ArgumentList_imported_function_named_param2() async {
	addTestFile('mainx() {A a = new A(); a.foo(one: 7, ^);}'
	'class A { foo({one, two}) {} }');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'two: ',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	expect(suggestions, hasLength(1));
	}

	test_ArgumentList_imported_function_named_param_label1() async {
	addTestFile('main() { int.parse("16", r^: 16);}');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'radix',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'onError',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	expect(suggestions, hasLength(2));
	}

	test_ArgumentList_imported_function_named_param_label3() async {
	addTestFile('main() { int.parse("16", ^: 16);}');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'radix: ',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	assertHasResult(CompletionSuggestionKind.NAMED_ARGUMENT, 'onError: ',
	relevance: DART_RELEVANCE_NAMED_PARAMETER);
	expect(suggestions, hasLength(2));
	}

	test_catch() async {
	addTestFile('main() {try {} ^}');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'on',
	relevance: DART_RELEVANCE_KEYWORD);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'catch',
	relevance: DART_RELEVANCE_KEYWORD);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'finally',
	relevance: DART_RELEVANCE_KEYWORD);
	expect(suggestions, hasLength(3));
	}

	test_catch2() async {
	addTestFile('main() {try {} on Foo {} ^}');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'on',
	relevance: DART_RELEVANCE_KEYWORD);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'catch',
	relevance: DART_RELEVANCE_KEYWORD);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'finally',
	relevance: DART_RELEVANCE_KEYWORD);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'for',
	relevance: DART_RELEVANCE_KEYWORD);
	suggestions.firstWhere(
	(CompletionSuggestion suggestion) =>
	suggestion.kind != CompletionSuggestionKind.KEYWORD, orElse: () {
	fail('Expected suggestions other than keyword suggestions');
	});
	}

	test_catch3() async {
	addTestFile('main() {try {} catch (e) {} finally {} ^}');
	await getSuggestions();
	assertNoResult('on');
	assertNoResult('catch');
	assertNoResult('finally');
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'for',
	relevance: DART_RELEVANCE_KEYWORD);
	suggestions.firstWhere(
	(CompletionSuggestion suggestion) =>
	suggestion.kind != CompletionSuggestionKind.KEYWORD, orElse: () {
	fail('Expected suggestions other than keyword suggestions');
	});
	}

	test_catch4() async {
	addTestFile('main() {try {} finally {} ^}');
	await getSuggestions();
	assertNoResult('on');
	assertNoResult('catch');
	assertNoResult('finally');
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'for',
	relevance: DART_RELEVANCE_KEYWORD);
	suggestions.firstWhere(
	(CompletionSuggestion suggestion) =>
	suggestion.kind != CompletionSuggestionKind.KEYWORD, orElse: () {
	fail('Expected suggestions other than keyword suggestions');
	});
	}

	test_catch5() async {
	addTestFile('main() {try {} ^ finally {}}');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'on',
	relevance: DART_RELEVANCE_KEYWORD);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'catch',
	relevance: DART_RELEVANCE_KEYWORD);
	expect(suggestions, hasLength(2));
	}

	test_html() {
	testFile = '/project/web/test.html';
	addTestFile('''
	<html>^</html>
	''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	expect(suggestions, hasLength(0));
	});
	}

	test_import_uri_with_trailing() {
	addFile('/project/bin/testA.dart', 'library libA;');
	addTestFile('''
	import '/project/bin/t^.dart';
	main() {}''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset - 14));
	expect(replacementLength, equals(5 + 14));
	assertHasResult(
	CompletionSuggestionKind.IMPORT, '/project/bin/testA.dart');
	assertNoResult('test');
	});
	}

	test_imports() {
	addTestFile('''
	import 'dart:html';
	main() {^}
	''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'HtmlElement');
	assertNoResult('test');
	});
	}

	test_imports_aborted_new_request() async {
	addTestFile('''
	class foo { }
	c^''');

	// Make a request for suggestions
	Request request1 =
	new CompletionGetSuggestionsParams(testFile, completionOffset)
	.toRequest('7');
	Response response1 = await waitResponse(request1);
	var result1 = new CompletionGetSuggestionsResult.fromResponse(response1);
	var completionId1 = result1.id;
	assertValidId(completionId1);

	// Perform some analysis but assert that no suggestions have yet been made
	completionId = completionId1;
	await pumpEventQueue(25);
	expect(suggestionsDone, isFalse);
	expect(suggestions, hasLength(0));

	// Make another request before the first request completes
	Request request2 =
	new CompletionGetSuggestionsParams(testFile, completionOffset)
	.toRequest('8');
	Response response2 = await waitResponse(request2);
	var result2 = new CompletionGetSuggestionsResult.fromResponse(response2);
	var completionId2 = result2.id;
	assertValidId(completionId2);

	// Wait for both sets of suggestions
	completionId = completionId2;
	await pumpEventQueue();
	expect(allSuggestions[completionId1], hasLength(0));
	expect(allSuggestions[completionId2], same(suggestions));
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'class',
	relevance: DART_RELEVANCE_HIGH);
	}

	test_imports_aborted_source_changed() async {
	addTestFile('''
	class foo { }
	c^''');

	// Make a request for suggestions
	Request request =
	new CompletionGetSuggestionsParams(testFile, completionOffset)
	.toRequest('0');
	Response response = await waitResponse(request);
	completionId = response.id;
	assertValidId(completionId);

	// Perform some analysis but assert that no suggestions have yet been made
	await pumpEventQueue(25);
	expect(suggestionsDone, isFalse);
	expect(suggestions, hasLength(0));

	// Simulate user deleting text after request but before suggestions returned
	server.updateContent('uc1', {testFile: new AddContentOverlay(testCode)});
	server.updateContent('uc2', {
	testFile: new ChangeContentOverlay(
	[new SourceEdit(completionOffset - 1, 1, '')])
	});

	// Expect the completion domain to discard request because source changed
	await pumpEventQueue().then((_) {
	expect(suggestionsDone, isTrue);
	});
	expect(suggestions, hasLength(0));
	}

	test_imports_incremental() async {
	addTestFile('''library foo;
	e^
	import "dart:async";
	import "package:foo/foo.dart";
	class foo { }''');
	await waitForTasksFinished();
	server.updateContent('uc1', {testFile: new AddContentOverlay(testCode)});
	server.updateContent('uc2', {
	testFile:
	new ChangeContentOverlay([new SourceEdit(completionOffset, 0, 'xp')])
	});
	completionOffset += 2;
	await getSuggestions();
	expect(replacementOffset, completionOffset - 3);
	expect(replacementLength, 3);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'export \'\';',
	selectionOffset: 8, relevance: DART_RELEVANCE_HIGH);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'import \'\';',
	selectionOffset: 8, relevance: DART_RELEVANCE_HIGH);
	assertNoResult('extends');
	assertNoResult('library');
	}

	test_imports_partial() async {
	addTestFile('''^
	import "package:foo/foo.dart";
	import "package:bar/bar.dart";
	class Baz { }''');

	// Wait for analysis then edit the content
	await waitForTasksFinished();
	String revisedContent = testCode.substring(0, completionOffset) +
	'i' +
	testCode.substring(completionOffset);
	++completionOffset;
	server.handleRequest(new AnalysisUpdateContentParams(
	{testFile: new AddContentOverlay(revisedContent)}).toRequest('add1'));

	// Request code completion immediately after edit
	Response response = await waitResponse(
	new CompletionGetSuggestionsParams(testFile, completionOffset)
	.toRequest('0'));
	completionId = response.id;
	assertValidId(completionId);
	await waitForTasksFinished();
	expect(replacementOffset, completionOffset - 1);
	expect(replacementLength, 1);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'library',
	relevance: DART_RELEVANCE_HIGH);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'import \'\';',
	selectionOffset: 8, relevance: DART_RELEVANCE_HIGH);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'export \'\';',
	selectionOffset: 8, relevance: DART_RELEVANCE_HIGH);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'part \'\';',
	selectionOffset: 6, relevance: DART_RELEVANCE_HIGH);
	assertNoResult('extends');
	}

	test_imports_prefixed() {
	addTestFile('''
	import 'dart:html' as foo;
	main() {^}
	''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
	assertHasResult(CompletionSuggestionKind.IDENTIFIER, 'foo');
	assertNoResult('HtmlElement');
	assertNoResult('test');
	});
	}

	test_imports_prefixed2() {
	addTestFile('''
	import 'dart:html' as foo;
	main() {foo.^}
	''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'HtmlElement');
	assertNoResult('test');
	});
	}

	test_inComment_block_beforeNode() async {
	addTestFile('''
	main(aaa, bbb) {
	/* text ^ */
	print(42);
	}
	''');
	await getSuggestions();
	expect(suggestions, isEmpty);
	}

	test_inComment_endOfLine_beforeNode() async {
	addTestFile('''
	main(aaa, bbb) {
	// text ^
	print(42);
	}
	''');
	await getSuggestions();
	expect(suggestions, isEmpty);
	}

	test_inComment_endOfLine_beforeToken() async {
	addTestFile('''
	main(aaa, bbb) {
	// text ^
	}
	''');
	await getSuggestions();
	expect(suggestions, isEmpty);
	}

	test_inDartDoc1() async {
	addTestFile('''
	/// ^
	main(aaa, bbb) {}
	''');
	await getSuggestions();
	expect(suggestions, isEmpty);
	}

	test_inDartDoc2() async {
	addTestFile('''
	/// Some text^
	main(aaa, bbb) {}
	''');
	await getSuggestions();
	expect(suggestions, isEmpty);
	}

	test_inDartDoc_reference1() async {
	addFile(
	'/testA.dart',
	'''
	part of libA;
	foo(bar) => 0;''');
	addTestFile('''
	library libA;
	part "/testA.dart";
	import "dart:math";
	/// The [^]
	main(aaa, bbb) {}
	''');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.IDENTIFIER, 'main',
	relevance: DART_RELEVANCE_LOCAL_FUNCTION);
	assertHasResult(CompletionSuggestionKind.IDENTIFIER, 'foo',
	relevance: DART_RELEVANCE_LOCAL_FUNCTION);
	assertHasResult(CompletionSuggestionKind.IDENTIFIER, 'min');
	}

	test_inDartDoc_reference2() async {
	addTestFile('''
	/// The [m^]
	main(aaa, bbb) {}
	''');
	await getSuggestions();
	assertHasResult(CompletionSuggestionKind.IDENTIFIER, 'main',
	relevance: DART_RELEVANCE_LOCAL_FUNCTION);
	}

	test_inherited() {
	addFile('/libA.dart', 'class A {m() {}}');
	addTestFile('''
	import '/libA.dart';
	class B extends A {
	x() {^}
	}
	''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'm');
	});
	}

	test_invocation() {
	addTestFile('class A {b() {}} main() {A a; a.^}');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'b');
	});
	}

	test_invocation_sdk_relevancy_off() {
	var originalSorter = DartCompletionManager.contributionSorter;
	var mockSorter = new MockRelevancySorter();
	DartCompletionManager.contributionSorter = mockSorter;
	addTestFile('main() {Map m; m.^}');
	return getSuggestions().then((_) {
	// Assert that the CommonUsageComputer has been replaced
	expect(suggestions.any((s) => s.relevance == DART_RELEVANCE_COMMON_USAGE),
	isFalse);
	DartCompletionManager.contributionSorter = originalSorter;
	mockSorter.enabled = false;
	});
	}

	test_invocation_sdk_relevancy_on() {
	addTestFile('main() {Map m; m.^}');
	return getSuggestions().then((_) {
	// Assert that the CommonUsageComputer is working
	expect(suggestions.any((s) => s.relevance == DART_RELEVANCE_COMMON_USAGE),
	isTrue);
	});
	}

	test_invocation_withTrailingStmt() {
	addTestFile('class A {b() {}} main() {A a; a.^ int x = 7;}');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'b');
	});
	}

	test_keyword() {
	addTestFile('library A; cl^');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset - 2));
	expect(replacementLength, equals(2));
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'export \'\';',
	selectionOffset: 8, relevance: DART_RELEVANCE_HIGH);
	assertHasResult(CompletionSuggestionKind.KEYWORD, 'class',
	relevance: DART_RELEVANCE_HIGH);
	});
	}

	test_local_named_constructor() {
	addTestFile('class A {A.c(); x() {new A.^}}');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'c');
	assertNoResult('A');
	});
	}

	test_local_override() {
	addFile('/libA.dart', 'class A {m() {}}');
	addTestFile('''
	import '/libA.dart';
	class B extends A {
	m() {}
	x() {^}
	}
	''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'm',
	relevance: DART_RELEVANCE_LOCAL_METHOD);
	});
	}

	test_locals() {
	addTestFile('class A {var a; x() {var b;^}} class DateTime { }');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'A');
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'a',
	relevance: DART_RELEVANCE_LOCAL_FIELD);
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'b',
	relevance: DART_RELEVANCE_LOCAL_VARIABLE);
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'x',
	relevance: DART_RELEVANCE_LOCAL_METHOD);
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'DateTime');
	});
	}

	test_offset_past_eof() async {
	addTestFile('main() { }', offset: 300);
	Request request =
	new CompletionGetSuggestionsParams(testFile, completionOffset)
	.toRequest('0');
	Response response = await waitResponse(request);
	expect(response.id, '0');
	expect(response.error.code, RequestErrorCode.INVALID_PARAMETER);
	}

	test_overrides() {
	addFile('/libA.dart', 'class A {m() {}}');
	addTestFile('''
	import '/libA.dart';
	class B extends A {m() {^}}
	''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'm',
	relevance: DART_RELEVANCE_LOCAL_METHOD);
	});
	}

	test_partFile() {
	addFile(
	'/project/bin/testA.dart',
	'''
	library libA;
	part "$testFile";
	import 'dart:html';
	class A { }
	''');
	addTestFile('''
	part of libA;
	main() {^}''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'HtmlElement');
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'A');
	assertNoResult('test');
	});
	}

	test_partFile2() {
	addFile(
	'/testA.dart',
	'''
	part of libA;
	class A { }''');
	addTestFile('''
	library libA;
	part "/testA.dart";
	import 'dart:html';
	main() {^}
	''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'HtmlElement');
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'A');
	assertNoResult('test');
	});
	}

	test_simple() {
	addTestFile('''
	void main() {
	^
	}
	''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
	assertNoResult('HtmlElement');
	assertNoResult('test');
	});
	}

	test_static() {
	addTestFile('class A {static b() {} c() {}} main() {A.^}');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset));
	expect(replacementLength, equals(0));
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'b');
	assertNoResult('c');
	});
	}

	test_topLevel() {
	addTestFile('''
	typedef foo();
	var test = '';
	main() {tes^t}
	''');
	return getSuggestions().then((_) {
	expect(replacementOffset, equals(completionOffset - 3));
	expect(replacementLength, equals(4));
	// Suggestions based upon imported elements are partially filtered
	//assertHasResult(CompletionSuggestionKind.INVOCATION, 'Object');
	assertHasResult(CompletionSuggestionKind.INVOCATION, 'test',
	relevance: DART_RELEVANCE_LOCAL_TOP_LEVEL_VARIABLE);
	assertNoResult('HtmlElement');
	});
	}
	}

	class MockRelevancySorter implements DartContributionSorter {
	bool enabled = true;

	@override
	Future sort(
	CompletionRequest request, Iterable<CompletionSuggestion> suggestions) {
	if (!enabled) {
	throw 'unexpected sort';
	}
	return new Future.value();
	}
	}

	@reflectiveTest
	class _NoSearchEngine extends AbstractAnalysisTest {
	@override
	void setUp() {
	super.setUp();
	createProject();
	handler = new CompletionDomainHandler(server);
	}

	test_noSearchEngine() async {
	addTestFile('''
	main() {
	^
	}
	''');
	await waitForTasksFinished();
	Request request =
	new CompletionGetSuggestionsParams(testFile, 0).toRequest('0');
	Response response = handler.handleRequest(request);
	expect(response.error, isNotNull);
	expect(response.error.code, RequestErrorCode.NO_INDEX_GENERATED);
	}
	}