Run tests and next steps

Run the tests

$ ./mvnw test

Or with Gradle:

$ ./gradlew test

You should see the Kafka and MySQL Docker containers start and all tests pass. After the tests finish, the containers stop and are removed automatically.

Summary

Testing with real Kafka and MySQL instances gives you more confidence in the correctness of your code than mocks or embedded alternatives. The Testcontainers library manages the container lifecycle so that your integration tests run against the same services you use in production.

To learn more about Testcontainers, visit the Testcontainers overview.

Further reading

• Getting started with Testcontainers in a Java Spring Boot project
• The simplest way to replace H2 with a real database for testing
• Awaitility
• Testcontainers Kafka module
• Testcontainers MySQL module