Fake It until You Make It! API Integration Testing with Containers & WireMock
summary
Shows how to combine Testcontainers and WireMock (yok) to run real integration tests: a WireMock-based mock packaged as a Testcontainers model, used both as an in-container service and as an external proxy for fault injection and recording. Demonstrates Java/Spring Boot demos, a webhook end-to-end test that runs in CI, Docker Compose and health-check integration, and faster local runs by reusing containers versus heavyweight harnesses. Key ideas: WireMock inside Testcontainers, WireMock as proxy for fault injection.
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chapters (11)
- 0:00Introduction and background
- 2:26Challenges in integration
- 5:31Approaches to testing
- 8:51Using test containers
- 13:32Testcontainers demo
- 15:32API mocking with WireMock
- 19:42Combining tools and demos
- 23:37Advanced integration patterns
- 30:15Framework portability
- 35:13Q&A session
- 39:10Spring Boot example
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