Book Image

Mastering Spring Boot 2.0

By : Dinesh Rajput
Book Image

Mastering Spring Boot 2.0

By: Dinesh Rajput

Overview of this book

Spring is one of the best frameworks on the market for developing web, enterprise, and cloud ready software. Spring Boot simplifies the building of complex software dramatically by reducing the amount of boilerplate code, and by providing production-ready features and a simple deployment model. This book will address the challenges related to power that come with Spring Boot's great configurability and flexibility. You will understand how Spring Boot configuration works under the hood, how to overwrite default configurations, and how to use advanced techniques to prepare Spring Boot applications to work in production. This book will also introduce readers to a relatively new topic in the Spring ecosystem – cloud native patterns, reactive programming, and applications. Get up to speed with microservices with Spring Boot and Spring Cloud. Each chapter aims to solve a specific problem or teach you a useful skillset. By the end of this book, you will be proficient in building and deploying your Spring Boot application.
Table of Contents (23 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

JUnit tests for the Spring Boot application


Spring Boot provides two modules for test support—sprint-boot-test and spring-boot-test-autoconfigure. spring-boot-test contains core items, and spring-boot-test-autoconfigure supports auto-configuration for tests. These modules have a number of utilities and annotations to help when testing your application. It is very simple to add these modules in the Spring Boot application by adding the spring-boot-starter-test starter dependency in your Maven file. This starter imports both Spring Boot test modules as well as JUnit, AssertJ, Hamcrest, and a number of other useful libraries. Let's see the following Maven dependency to include test support in the Spring Boot application:

<dependency> 
   <groupId>org.springframework.boot</groupId> 
   <artifactId>spring-boot-starter-test</artifactId> 
   <scope>test</scope> 
</dependency> 

The preceding Maven dependency will add the following libraries to your Spring...