What are the differences between stubs and fakes in testing?
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What are the differences between stubs and fakes in testing?
Stubs and fakes are both types of test doubles used in software testing. A stub is a minimal implementation that provides predefined responses to calls made during the test, while a fake has a working implementation but is simplified for testing purposes.
Can you give me an example of a stub?
Sure! Imagine you have a function that fetches user data from a database. A stub could return a hardcoded user object instead of querying the database.
And what about a fake?
A fake might be a lightweight in-memory database that simulates the behavior of a real database, allowing you to test your application without needing the actual database.
When should I use stubs instead of fakes?
Use stubs when you need to isolate the unit of work and don't require complex behavior. Fakes are better when you need a more realistic interaction.
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