anchor.diff:      TargetPlatform targetPlatform = TargetPlatform.android_arm,
       bool isLocalEmulator = false,
       this.supportsHotRestart = true,
  +    this.supportsScreenshot = true,
  +    this.supportsFlutterExit = true,
     }) : _isLocalEmulator = isLocalEmulator,
          _targetPlatform = targetPlatform,
          _sdkNameAndVersion = sdkNameAndVersion;
  
positive.code:   String get name => 'FakeDevice';
  
    @override
    Future<void> dispose() async {  }
  }
  
negative.code:       mockDevice,
      );
      flutterDevice.vmService = fakeVmServiceHost.vmService;
  
      await flutterDevice.exitApps(
        timeoutDelay: Duration.zero,
      );
  
      expect(mockDevice.appStopped, true);
      expect(fakeVmServiceHost.hasRemainingExpectations, false);
    }));
  
  