| // Copyright (c) 2023, 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:io'; |
| |
| import 'package:dds/dds.dart'; |
| import 'package:test/test.dart'; |
| |
| import 'common/test_helper.dart'; |
| |
| void main() async { |
| late Process process; |
| late DartDevelopmentService dds; |
| |
| setUp(() async { |
| process = await spawnDartProcess( |
| 'handles_existing_dds_instance_script.dart', |
| ); |
| }); |
| |
| tearDown(() async { |
| await dds.shutdown(); |
| process.kill(); |
| }); |
| |
| test('Handle the VM already having an existing DDS instance', () async { |
| // Connect a first DDS instance to the VM Service. |
| dds = await DartDevelopmentService.startDartDevelopmentService( |
| remoteVmServiceUri, |
| ); |
| |
| // Trying to connect a second DDS instance should fail, and provide the |
| // URI of the first. |
| try { |
| await DartDevelopmentService.startDartDevelopmentService( |
| remoteVmServiceUri, |
| ); |
| fail('Unexpected successful connection.'); |
| } on ExistingDartDevelopmentServiceException catch (e) { |
| expect( |
| e.errorCode, |
| DartDevelopmentServiceException.existingDdsInstanceError, |
| ); |
| expect(e.ddsUri, isNotNull); |
| // Expect the base VM Service URL, not the WS version. |
| expect(e.ddsUri!.scheme, anyOf('http', 'https')); |
| expect(e.ddsUri!.path, isNot(endsWith('/ws'))); |
| // And expect it to match the original instance we spawned. |
| expect(e.ddsUri, dds.uri); |
| expect(e.toString(), contains('A DDS instance is already connected')); |
| } |
| }); |
| } |