JUnit 5 is a popular testing framework for Java applications, and you can easily set up JUnit 5 in a Maven-based Java project. Here’s a step-by-step guide on how to configure JUnit 5 with Maven:

1. Create a Maven Project: If you don’t have an existing Maven project, you can create one using your preferred IDE or by using the following command in your terminal:

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   mvn archetype:generate -DgroupId=com.example -DartifactId=myproject -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false


2. Open pom.xml: Open the pom.xml file in your project directory. This is where you’ll configure your Maven dependencies.

3. Add JUnit 5 Dependencies: Inside the <dependencies> section of your pom.xml, add the following dependencies for JUnit 5:

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   <dependencies>
<!-- JUnit 5 API -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.8.0</version>
<scope>test</scope>
</dependency>

    

   <!-- JUnit 5 Engine (allows running tests) -->
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.8.0</version>
<scope>test</scope>
</dependency>
</dependencies>


   This configuration includes the JUnit Jupiter API and the JUnit Jupiter Engine, which is required for running JUnit 5 tests.

4. Configure the Maven Surefire Plugin: In the pom.xml, you also need to configure the Maven Surefire Plugin to run JUnit 5 tests. Add the following configuration under the <build> section:

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   <build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>3.0.0-M5</version>
<dependencies>
<dependency>
<groupId>org.junit.platform</groupId>
<artifactId>junit-platform-surefire-provider</artifactId>
<version>1.8.0</version>
</dependency>
</dependencies>
</plugin>
</plugins>
</build>


   This configuration specifies the Surefire Provider for JUnit 5.

5. Write JUnit 5 Tests: Create your JUnit 5 test classes by annotating methods with @Test and using JUnit 5 assertions. Here’s a simple example:

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

    

   public class MyTest {
@Test
void testAddition() {
int result = 1 + 1;
assertEquals(2, result);
}
}


6. Run Tests: You can run your JUnit 5 tests using Maven with the following command:

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   mvn test


   Maven will discover and execute your JUnit 5 tests.

That’s it! You’ve successfully set up JUnit 5 in a Maven project. You can now write and run your tests to ensure the correctness of your Java code.