Book Image

Mastering Spring Cloud

By : Piotr Mińkowski
Book Image

Mastering Spring Cloud

By: Piotr Mińkowski

Overview of this book

Developing, deploying, and operating cloud applications should be as easy as local applications. This should be the governing principle behind any cloud platform, library, or tool. Spring Cloud–an open-source library–makes it easy to develop JVM applications for the cloud. In this book, you will be introduced to Spring Cloud and will master its features from the application developer's point of view. This book begins by introducing you to microservices for Spring and the available feature set in Spring Cloud. You will learn to configure the Spring Cloud server and run the Eureka server to enable service registration and discovery. Then you will learn about techniques related to load balancing and circuit breaking and utilize all features of the Feign client. The book now delves into advanced topics where you will learn to implement distributed tracing solutions for Spring Cloud and build message-driven microservice architectures. Before running an application on Docker container s, you will master testing and securing techniques with Spring Cloud.
Table of Contents (22 chapters)
Title Page
Copyright and Credits
Packt Upsell

Chapter 13. Testing Java Microservices

While developing a new application, we should never forget about automated tests. These are especially important if we are thinking about microservices-based architecture. Testing microservices requires a different approach than the tests created for monolithic applications. As far as monoliths are concerned, the main focus is on unit testing and  integration tests, together with the database layer. In the case of microservices, the most important thing is to provide coverage for each of the communications at the finest possible granularity. Although each microservice is independently developed and released, a change in one of them can affect all of the others that are interacting with that service. The communication between them is realized through messages. Usually, these are messages that are sent via REST or AMQP protocols.

Topics we will cover in this chapter include the following:

  • Spring support for automated testing
  • Differences between a component...