If you've upgraded to a recent master, you'll find that flutter_test has removed its dependency on package:test. The package hasn't been removed or renamed, but you will need to specifically add it to you dev_dependencies in your pubspec now:

dev_dependencies:
  flutter_test:
    sdk: flutter
  test: ^1.15.4

more info

the code has potential issue when we flip back and forth between fields and the first time when the field is valid it adds to the stream and never removes the valid value so what happens is even if the invalid value added it never considers it

Hi Stephen,

In your news and login_bloc course. You created dispose() method inside the bloc.dart file where you disposing the Subjects. But that method is never called. That can be a memory leak. Can you tell me where can I call the dispose method in the screen class?