anchor.diff:        .childFile('app.so').existsSync(), true);
     });
   }
  -
  -class MockGenSnapshot extends Mock implements GenSnapshot {}
  
positive.code: // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  
  import 'package:flutter_tools/src/base/build.dart';
  import 'package:flutter_tools/src/base/file_system.dart';
  import 'package:flutter_tools/src/build_info.dart';
  import 'package:flutter_tools/src/build_system/build_system.dart';
  
negative.code: import 'package:flutter_tools/src/build_system/targets/dart.dart';
  import 'package:flutter_tools/src/globals.dart' as globals;
  import 'package:flutter_tools/src/cache.dart';
  import 'package:platform/platform.dart';
  
  import '../../../src/common.dart';
  import '../../../src/fake_process_manager.dart';
  import '../../../src/testbed.dart';
  
  void main() {
    FakeProcessManager fakeProcessManager;
    final Testbed testbed = Testbed(overrides: <Type, Generator>{
      Cache: () => FakeCache(),
      Platform: () => FakePlatform(operatingSystem: 'linux', environment: const <String, String>{}),
    });
  
    testbed.test('debug bundle contains expected resources', () async {
  