JUnit 5 Fundamentals

@ParameterizedTest with @EnumSource

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@ParameterizedTest with @ValueSource

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Overview

The @EnumSource annotation can be attached to a parameterized test method. It's provided with a class reference to an Enumeration Type, and at runtime, each value inside this enumeration will be given to the test method. This is a great choice for testing a piece of code against all different options inside an enum.

Summary

Use @EnumSource to execute a test once for each item of an enum class

Instructor

Marcel Schnelle

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Lessons in JUnit 5 Fundamentals

1. Understand the Core Components of JUnit 5

2. Set up your Java Project for JUnit 5

3. Set up your Android Project for JUnit 5

4. The first @Test

5. Lifecycle with @BeforeEach & @AfterEach

6. Lifecycle with @BeforeAll & @AfterAll

7. Using 1 Instance per Method with @TestInstance

8. Using 1 Instance per Class with @TestInstance

9. Taking advantage of @TestInstance(PER_CLASS) in Kotlin

10. Bearable Test Method Names with @DisplayName

11. Checking for equality with assertEquals() & Friends

12. Using assertTrue() & assertFalse()

13. Asserting null

14. Testing Exceptions with assertThrows()

15. Composing Assertions with assertAll()

16. Avoiding failure with Assumptions

17. Ignoring Tests with @Disabled

18. Conditional Test Execution Pairs: @EnabledOnOs & @DisabledOnOs

19. Conditional Test Execution Pairs: @EnabledOnJre & @DisabledOnJre

20. Conditional Test Execution Pairs: @EnabledIfSystemProperty & @DisabledIfSystemProperty

21. Conditional Test Execution Pairs: @EnabledIfEnvironmentVariable & @DisabledIfEnvironmentVariable

22. Conditional Test Execution Pairs: @EnabledIf & @DisabledIf

23. Grouping tests with @Tag

24. @Nested & Effective BDD in JUnit 5

25. Running a test multiple times with @RepeatedTest

26. @ParameterizedTest with @ValueSource

27. @ParameterizedTest with @EnumSource

28. @ParameterizedTest with @MethodSource

29. @ParameterizedTest with @CsvSource & @CsvFileSource

30. Argument Conversion Techniques for Parameterized Tests

31. Writing a custom @Source for Parameterized Tests

32. Introduction to @TestFactory and Dynamic Tests

33. Grouping Dynamic Tests into Containers

34. Lifecycle Caveats for Dynamic Tests

35. Setting up Parallel Test Execution

36. Parallel Execution Strategies: Dynamic

37. Parallel Execution Strategies: Fixed

38. Parallel Execution Strategies: Custom

39. Synchronizing Parallel Test Execution with @ResourceLock