Testing Java Microservices

With traditional software unit tests, there's never a guarantee that an application will actually function correctly in the production environment. And when you add microservices, remote resources that are accessible over a network, into the mix, testing is more tricky. To make things even harder, microservices typically need to collaborate with additional network-based microservices, making testing even more challenging.

Testing Java Microservices teaches you how to write tests for microservices in Java. You'll learn test strategies that solve the most common issues you are likely to encounter.

This practical hands-on guide begins with introducing you to microservices and providing you with a simple, carefully-designed application developed using microservices principles and following some of the most common technologies such as Java EE, Spring Boot, WildFly Swarm, and Docker.

You'll move on to write tests for microservices architecture, starting with simple but useful unit tests, all the way to end-to-end tests. The book shows you how to write tests like unit, component, integration, container, contract, chaos, and more. Along the way, you'll also learn about some technologies like the Arquillian ecosystem, Wiremock, Mockito, AssertJ, Pact or Gatling. Finally, you'll see how everything fits together into the Continuous Delivery pipeline.

Readers should be comfortable programming in Java. Experience with testing tools like jUnit is helpful but not required. Some experience in Java EE, Spring. and Docker is also helpful.