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Each test should check for a specific, basic type of behavior.
If you write unit tests that are long or complicated, it’ll be harder to track down exactly what’s going wrong.
Android contains an SQLite database which is frequently used in conjunction with a content provider.
You’ll also be working with a class from the UIKit framework, so you need to import UIKit.
It is the last component which is stopped during application shutdown.
If not explicitly defined, Android creates a default application object for your application.
Activities use views and fragments to create their user interface and to interact with the user.
performs tasks without providing an user interface.