🚀 Integration Testing with Docker and Testcontainers (Sergei Egorov)

Testing

Learn how to simplify integration testing with Docker and Testcontainers, a powerful combination that allows you to define and start containers, automate database setup and tearing down, and more.

Key takeaways

Avoid running tests on external services directly, instead, use a mocking library to isolate tests.
Docker provides a cross-platform, unified testing environment, but static ports can cause issues.
Use Testcontainers to simplify integration testing and avoid complex setup.
Testcontainers provides a simple API to define containers, supports different drivers, and can register custom drivers.
Use the getBootstrapServers method in Kafka to get the bootstrap servers.
When running tests, consider using a testing framework that provides initialization and testing utilities.
Use Testcontainers to define and start containers, and to automate database setup and tearing down.
Containerize services, and then use Testcontainers to start containers and run tests.
Use Testcontainers to simplify testing and integrate with other testing frameworks.
Test containers works better for developers who use different operation systems.
Testcontainers can be used with any framework, including Spring Boot, to simplify testing.
Docker provides a simple way to run and test services in isolation.
Testcontainers provides a simple way to define and start containers for testing.
Docker can be used to test services in isolation, but it’s more complex than Testcontainers.
Test containers can be used with embedded databases, but can also be used with real databases.
The problem with docker-compose is that it uses the docker command to run services, and docker command can take a long time to start services.
Using docker-compose to start services can take a long time, especially with real-time databases.
Avoid using docker command to run services, instead, use Testcontainers to define and start services.
Use Testcontainers to define and start containers, and to automate testing and cleanup.

🚀 Integration Testing with Docker and Testcontainers (Sergei Egorov)

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