What’s Important to Get Right When Using Mocks?
Understand key best practices for using mocks in Java unit tests with Mockito. Learn how to create clear, concise tests that effectively simulate production behavior. Discover the importance of correlation in test clarity, and how to cover edge cases and exceptions. Recognize mocks create gaps in coverage and the need for integration tests to ensure reliable end-to-end verification.
We'll cover the following...
Best scenario
In the best case, we end up with a single-line arranged a portion of our test that creates an expectation using Mockito’s when(...).then(...) construction. We have a single-line act and a single assert. These are tests we can quickly read, understand, and trust.
Tests using mocks should clearly state “what’s going on”.
Correlation
Tests using mocks should clearly state what is going on. One way we do this is by ...