In this article, Vasil Kosturski presents an approach to building integration tests for your Kafka producer to verify that messages are produced correctly using Docker containers. The testing pattern presented can be applied to interactions with other types of message brokers and servers, as well, making it a versatile approach. The testing workflow includes starting Kafka in a Docker container, preparing a Kafka consumer, invoking the Orders API to push a Kafka message, and consuming the message from Kafka to check for correctness, among other steps. Detailed instructions on the implementation can be found on the authors GitHub page.
