Java Stash

Examples

Java API Testing

Testing an API

Java API testing with Spring Test validates REST endpoints.

Introduction to Java API Testing

API testing is a crucial part of modern software development, especially when working with RESTful services. In this tutorial, we will explore how to perform API testing in Java using the Spring Test module. This ensures that your REST endpoints function correctly and meet the expected criteria.

Setting Up Your Spring Boot Application

Before you begin testing, ensure that your Spring Boot application is set up correctly. If you're continuing from a previous guide, your application should already be configured. Otherwise, create a new Spring Boot project using Spring Initializr with dependencies like Spring Web and Spring Boot DevTools.

Here is a basic example of a Spring Boot application:

Adding Spring Test Dependency

To begin testing, add the Spring Test dependency to your pom.xml file if you are using Maven:

Creating a Simple REST Controller

Let's create a simple REST controller to test. This will be a standard controller with a single endpoint.

Writing Your First Test Case

Now, let's write a test case using Spring Test to validate the /hello endpoint. We'll use JUnit and Spring's MockMvc to perform the testing.

Running Your Tests

With your test cases in place, run them to ensure that your application's endpoints function as expected. This can typically be done using your IDE's built-in test runner or via a command line with Maven or Gradle.

For Maven, use the following command:

This command will execute all the test cases defined in your project. If everything is set up correctly, you should see a success message indicating that your tests passed.

Examples

Next
Logging Setup