Understanding test doubles
We all know about stunt doubles in movies. A stunt double or dummy is a trained replacement used for dangerous action sequences in movies, such as a fight sequence on the top of a burning train, jumping from an airplane, and so on, mainly fight scenes. Stunt doubles are used to protect the real actors, are used when the actor is not available, or when the actor has a contract to not get involved in stunts.
Similarly, sometimes it is not possible to unit test the code because of the unavailability of the collaborator objects, or the cost of interaction and instantiation of collaborators. For instance, when the code is dependent on database access, it is not possible to unit test the code unless the database is available, ...
Get Mockito Essentials now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
