JUnit 5 Fundamentals

@ParameterizedTest with @CsvSource & @CsvFileSource

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Argument Conversion Techniques for Parameterized Tests

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@ParameterizedTest with @MethodSource

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Overview

In this lesson, we take a look at @ParameterizedTest data generated from comma-separated values (CSV). There are two source annotations to help with this integration: @CsvSource allows you to specify the values right in the annotation, in a well-arranged structure. @CsvFileSource expects a path to a resource file, which is read in at runtime, and should contain the desired input values. This makes it possible to store test data outside of the source code itself!

Summary

CSV data can be inlined with @CsvSource, ...
...or read in from a resource file with @CsvFileSource

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