Step 1: Create a Java Project in IntelliJ with Maven
Open IntelliJ IDE and click on New Project button, or go to the menu option File -> New -> Project...
![Java New Project in IntelliJ IDE Java New Project in IntelliJ IDE](https://code2care.org/java/junit-4-example-with-intellj-maven-setup/images/Java New Project in IntelliJ IDE.jpg)
Make sure to select the Build System as Maven.
![Build System Maven Build System Maven](https://code2care.org/java/junit-4-example-with-intellj-maven-setup/images/Build System Maven.jpg)
Step 2: Adding Junit 4 Maven Dependency to pom.xml
In the project folder, open the pom.xml file.
Add the below junit 4 dependency to your pom.xml file.
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
</dependencies>
Make sure to "Load Maven Changes" so the required jar files get downloaded.
![IntelliJ - Load Maven Changes IntelliJ - Load Maven Changes](https://code2care.org/java/junit-4-example-with-intellj-maven-setup/images/IntelliJ - Load Maven Changes.jpg)
Step 3: Sample code to verify setup
Create a class TestJunit.java under src -> test -> java
import org.junit.Test;
import static org.junit.Assert.*;
public class TestJunit {
@Test
public void test1() {
int expectedResult = 20;
int actualResult = 20; //for testing
assertEquals(expectedResult,actualResult);
}
@Test
public void test2() {
int expectedResult = 20;
int actualResult = 19; //for testing
assertEquals(expectedResult,actualResult);
}
}
Now right-click on this class file and select - "Run TestJunit with Coverage", you should see one test pass and another fails.
Facing issues? Have Questions? Post them here! I am happy to answer!
Rakesh (He/Him) has over 14+ years of experience in Web and Application development. He is the author of insightful How-To articles for Code2care.
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