Build Resilient Systems with Spring Cloud Contract and Testcontainers
summary
Spring Cloud Contract generates runnable verification tests from DSL contracts and uses Testcontainers to start a real Kafka broker so generated tests actually spin up the Barista app, trigger its handler, and consume the produced message; passing runs also publish a stubs jar for consumers. The pipeline catches real mistakes (wrong topic, misspelled id, disabled error path) during build. Demo shows Spring Cloud Contract, Testcontainers, and the new service-connection annotation driving reproducible messaging integration tests.
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chapters (17)
- 0:00Introduction and speakers
- 1:27Speaker introductions
- 8:09Consumer-driven contracts concept
- 10:14Demo setup and Kafka listener
- 12:21Spring Cloud Contract verifier plugin
- 18:42Testcontainers overview
- 19:47Writing contract definitions
- 23:19Running contract tests
- 24:23Verifying test failures
- 26:52Generating and using stubs
- 27:56Consumer-side integration tests
- 31:07Recap of contract testing flow
- 32:29Spring Boot service connection
- 35:17Testcontainers Desktop tool
- 37:05Team workflows with contracts
- 40:33Evolving services safely
- 42:20Closing and resources
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