anchor.diff:  
     group('flag parsing', () {
       Directory tempDir;
  -    MockAndroidBuilder mockAndroidBuilder;
  +    FakeAndroidBuilder fakeAndroidBuilder;
   
       setUp(() {
  -      mockAndroidBuilder = MockAndroidBuilder();
  +      fakeAndroidBuilder = FakeAndroidBuilder();
         tempDir = globals.fs.systemTempDirectory.createTempSync('flutter_tools_build_aar_test.');
       });
   
  
positive.code: import 'package:flutter_tools/src/project.dart';
  import 'package:flutter_tools/src/reporting/reporting.dart';
  import 'package:flutter_tools/src/globals.dart' as globals;
  import 'package:mockito/mockito.dart';
  import 'package:process/process.dart';
  
  import '../../src/android_common.dart';
  import '../../src/common.dart';
  import '../../src/context.dart';
  import '../../src/mocks.dart';
  
  void main() {
    Cache.disableLocking();
  
negative.code:       overrides: <Type, Generator>{
          AndroidSdk: () => null,
          FlutterProjectFactory: () => FakeFlutterProjectFactory(tempDir),
          ProcessManager: () => FakeProcessManager.any(),
        });
      });
    });
  