Book Image

Spring 5.0 Cookbook

By : Sherwin John C. Tragura
Book Image

Spring 5.0 Cookbook

By: Sherwin John C. Tragura

Overview of this book

The Spring framework has been the go-to framework for Java developers for quite some time. It enhances modularity, provides more readable code, and enables the developer to focus on developing the application while the underlying framework takes care of transaction APIs, remote APIs, JMX APIs, and JMS APIs. The upcoming version of the Spring Framework has a lot to offer, above and beyond the platform upgrade to Java 9, and this book will show you all you need to know to overcome common to advanced problems you might face. Each recipe will showcase some old and new issues and solutions, right from configuring Spring 5.0 container to testing its components. Most importantly, the book will highlight concurrent processes, asynchronous MVC and reactive programming using Reactor Core APIs. Aside from the core components, this book will also include integration of third-party technologies that are mostly needed in building enterprise applications. By the end of the book, the reader will not only be well versed with the essential concepts of Spring, but will also have mastered its latest features in a solution-oriented manner.
Table of Contents (20 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Building tests for blocking, asynchronous and reactive RESTful services


If testing Spring Data JPA transactions is easier with Spring Boot, then the following recipe that involves testing RESTful services is also quite straightforward and convenient as compared to the usual MockMvc style.

Getting ready

Again, open the DEPARTMENT microservices project, which is ch10-deptservice, and add the following test classes that will validate the results of each RESTful service.

How to do it...

Let us implement test cases for each RESTful service of a microservice by performing the following steps:

  1. Just like in the previous recipe, add the needed Spring Test starter POM dependency in the project's pom.xml file.
  1. Inside src/test/java, create an org.packt.microservice.core.test package and drop a test class that executes blocking RESTful services using org.springframework.boot.test.web.client.TestRestTemplate:
import static org.assertj.core.api.Assertions.assertThat; 
@RunWith(SpringRunner.class) 
@SpringBootTest...