Learn how to use Kafka’s MockProducer to verify common producer operations

Kafka is a message processing system built around a distributed messaging queue. It provides a Java library so that applications can write data to, or read data from, a Kafka topic.

Now, since most of the business domain logic is validated through unit tests, applications generally mock all I/O operations in JUnit. Kafka also provides a _MockProducer _to mock a producer application.

In this tutorial, we’ll first implement a Kafka producer application. Later, we’ll implement a unit test to verify common producer operations with MockProducer.

#testing #kafka #developer