~/talk

The unknowns of JUnit 5

on YouTube 41m
Talkat 4Developers 2022 Online · 2022-04-04..04-07· [testing, java]

speaker

name:Mike Kowalski
links:none on file

resources

video:https://youtu.be/sdTXNHaTIfU
slides:none on file

summary

Shows concrete JUnit 5 tricks: replace multiple similar tests with ParameterizedTest using MethodSource or @CsvSource plus text blocks and custom delimiters to make data-table style cases, use records for type-safe arguments and the name placeholder/displayName to print business-friendly row descriptions, write an Extension implementing BeforeAll/BeforeEach/AfterAll and ParameterResolver injection to avoid base test classes (example: WireMock server), and toggle parallel execution via junit-platform.properties and ExecutionMode with a custom @ParallelizableTest wrapper.

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chapters (6)

  1. 0:00Introduction to JUnit 5 unknowns
  2. 2:51Advanced parameterized tests
  3. 15:56Avoiding test inheritance
  4. 27:18Testing comparable contracts
  5. 31:15Pragmatic test parallelization
  6. 40:30Closing and resources

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