Book Image

Full Stack Development with Spring Boot 3 and React - Fourth Edition

By : Juha Hinkula
5 (1)
Book Image

Full Stack Development with Spring Boot 3 and React - Fourth Edition

5 (1)
By: Juha Hinkula

Overview of this book

If you’re an existing Java developer who wants to go full stack or pick up another frontend framework, this book is your concise introduction to React. In this three-part build-along, you’ll create a robust Spring Boot backend, a React frontend, and then deploy them together. This new edition is updated to Spring Boot 3 and includes expanded content on security and testing. For the first time ever, it also covers React development with the in-demand TypeScript. You’ll explore the elements that go into creating a REST API and testing, securing, and deploying your applications. You’ll learn about custom Hooks, third-party components, and MUI. By the end of this book, you'll be able to build a full stack application using the latest tools and modern best practices.
Table of Contents (23 chapters)
1
Part I: Backend Programming with Spring Boot
8
Part II: Frontend Programming with React
14
Part III: Full Stack Development
21
Other Books You May Enjoy
22
Index

Testing in Spring Boot

The Spring Boot test starter package is automatically added to the build.gradle file by Spring Initializr when we create our project. The test starter dependency can be seen in the following snippet:

testImplementation 'org.springframework.boot:spring-boot-starter-test'

The Spring Boot test starter provides lots of handy libraries for testing, such as JUnit, Mockito, and AssertJ. Mockito is a mocking framework that is often used alongside testing frameworks like JUnit. AssertJ is a popular library for writing assertions in Java testing. In this book, we will use JUnit 5. The JUnit Jupiter module is part of JUnit 5 and provides annotations for more flexible testing.

If you take a look at your project structure, you’ll see that it already has its own package created for test classes:

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Figure 6.1: Test classes

By default, Spring Boot uses an in-memory database for testing. We are using MariaDB at this point in the...