- [Instructor] Step five reacts to a user event.…In other words, it goes from the view…to the presenter.…We will do that in the listener interface…and have the presenter implement the listener interface.…Go to the presenter and go to line 10.…Add implements RecipeContract.Listener.…Now, let's go to RecipeActivity.…Here in step five in line 43…we have a ClickListener.…
Inside we try to toggle the favorite states…of our recipe but remember,…we have hidden the recipe inside the presenter…so we cannot do it directly here.…What to do?…What we can do is we can add a function to the presenter…to toggle the favorite.…At line 46,…we will do presenter.toggleFavorite…and then we will press alt enter…to create this method.…
We are going to create that inside the RecipePresenter.…In toggleFavorites what we are going to do…is copy and paste the thing from the RecipeActivity.…Go to RecipeActivity,…and then we are going to actually cut out lines 47…and 48, switch to the presenter.…Inside the toggleFavorite function…in line 44 paste it in.…
- Why test?
- Local vs. on-device
- Code coverage
- UI testing
- Hermetic environment
- Dependency injection
- Testing with MVP
Skill Level Intermediate
1. Testing Considerations
2. Test as You Go
3. UI Testing
4. Hermetic Environment
5. Robot Pattern
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