Modern Testing Patterns
summary
Shows concrete ways to stop fake green tests by using mutation testing to reveal that 85% line coverage can hide a 20% mutation kill rate, using PIT and community plugins for other languages; runs real Postgres and LocalStack with TestContainers (including a commit-to-image trick to speed CI) and uses Liquibase migrations in tests to catch schema drift; replaces brittle mocks with WireMock stubs and generates those plus verifiable tests from contracts via Spring Cloud Contract for reliable integration checks.
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chapters (24)
- 0:00Introduction
- 1:55Development Horror Stories
- 3:20Why Test
- 5:01Test for Coverage
- 7:56Mutation Testing
- 11:30PiTest
- 12:13Testing Pyramid
- 14:12Improving Database Tests
- 21:32Test Containers
- 25:40Static Containers
- 26:32Other Use Cases
- 27:12Local Stack Container
- 28:12AWS Client
- 30:12Toxiproxy
- 32:47Commit
- 34:02Performance
- 35:27Docker Containers
- 36:12Wiremock
- 36:57Contract Testing
- 38:32Defining a Contract
- 39:17Spring Cloud Contract
- 41:27Benefits
- 42:37Maven
- 43:42Conclusion
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