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

Creating test cases

For unit and integration testing, we are using JUnit, which is a popular Java-based unit testing library. Spring Boot has built-in support for JUnit, making it easy to write tests for your Spring Boot application. The following source code shows an example skeleton of the Spring Boot test class. The @SpringBootTest annotation specifies that the class is a regular test class that runs Spring Boot-based tests. The @Test annotation before the method specifies to JUnit that the method can be run as a test case:

@SpringBootTest
public class MyTestsClass {
  @Test
  public void testMethod()  {
    // Test case code
  }
}

Assertions in unit testing are statements that can be used to verify whether the actual output of a code unit matches the expected output. In our case, the assertions are implemented using the AssertJ library that the spring-boot-starter-test artifact automatically includes. The AssertJ library provides assertThat() method that you can use to write assertions...