Introduction to Testing in Java

Start by exploring automated software testing and the typical pitfalls it helps avoid. Then, gain hands-on experience with Java's JUnit 5 library and learn to structure and write unit tests.

Examine how software components interact and rely on each other, and see how integration testing verifies these interactions by testing a class alongside its dependencies. This chapter then introduces mocking as a method to simulate dependencies and focus testing on the logic being evaluated.

Explore multiple ways to make testing less verbose. One way to do so is parameterizing tests; another is using the @BeforeEach annotation. Finally, it presents a new way to think about testing.