What are JUnit integration tests and how do I write them?

What are JUnit integration tests and how do I write them?

JUnit integration tests are used to test the interaction between different components of your application. They ensure that the components work together as expected.

Can you give me an example of a simple integration test using JUnit?

Sure! Here's a basic example:

import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;

public class MyServiceIntegrationTest {
    @Test
    public void testServiceIntegration() {
        MyService service = new MyService();
        String result = service.performAction();
        assertEquals("Expected Result", result);
    }
}

What dependencies do I need to include for JUnit integration tests?

You need to include the JUnit library in your project. If you're using Maven, add this to your pom.xml:

<dependency>
    <groupId>org.junit.jupiter</groupId>
    <artifactId>junit-jupiter</artifactId>
    <version>5.7.0</version>
    <scope>test</scope>
</dependency>

How do I run these tests?

You can run JUnit tests using your IDE's built-in test runner or by using Maven with the command mvn test.