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Module 17: Professional Development Practices

Lesson focus

Unit Testing with JUnit 5

Write expressive test cases with Jupiter, lifecycle methods, and assertions.

Use @Test, @BeforeEach, @AfterEach, and @Nested to structure suites.

Apply AssertJ or Hamcrest for fluent assertions and leverage parameterized tests for data-driven scenarios.

Organize tests by feature and maintain descriptive naming conventions (should...When...).

Lesson quiz

Which annotation runs once before all tests?

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