Building your app from the command line, if you have a "demo" product flavor, then you can build the debug version with the command:

Under the hood WorkManager uses an underlying job dispatching service based on the following criteri a. You need to move services to the correct places.

To run a debuggable build variant you must use a build variant that includes

The following code snippet shows an example of an Espresso test:

In our TeaViewModel class, that extends ViewModel, we have such method:
public LiveData<Tea> getTea() { return mTea;
}
An observer in our Activity (type of mViewModel variable in example is TeaViewModel) is set in this way:
mViewModel.getTea().observe(this, this::displayTea);
What will be a correct displayTea method definition?