How to install JUnit 5 on Ubuntu?

In this section, we will see, a detailed step-by-step process to Install the JUnit 5 application on the Ubuntu Operating System. So follow the below-specified steps with command execution to install the application without encountering any issues.

Step 1: Firstly, we need to open a terminal on our Ubuntu system. We can usually find the terminal application in our system’s applications or by searching for “Terminal” or we can also use the shortcut “CTRL + ALT + T” to launch the terminal.

Step 2: Once the terminal is been opened, we need to update our system with the latest package information. This can be done by using the apt manager on the system. So we need to execute the below update command to update all the repositories to their latest version.

sudo apt update

Step 3: We need to check if the Java is installed on our system. We can check it by verifying the version.

java -version

If the Javs is not installed on the system, then you can execute the below command and install Java on your system.

sudo apt install default-jre

Step 4: Once the Java environment is set up on our Ubuntu system, we can install the JUnit 5 package using Apt Manager. Execute the below command in the terminal to install the JUnit 5 package.

sudo apt install junit5

Step 5: To verify, whether the installation is successful or not, we can check by executing the below command:

dpkg -L junit5

• dpkg: Command-line tool used for managing Debian packages on Ubuntu.
• -L: Option is used to list files installed by the specified package.
• junit5: Package name for JUnit 5.

JUnit 5 is a powerful and widely used testing framework for Java applications. Installing JUnit 5 on Ubuntu involves configuring a Java project with the necessary dependencies. Begin by setting up a Java project using a build tool such as Maven or Gradle, and then include JUnit 5 as a dependency. The installation process typically involves updating the project’s build configuration file and triggering the build tool to download and manage the JUnit 5 libraries. This allows developers to seamlessly integrate JUnit 5 into their Java projects for efficient unit testing. The following steps provide a basic guide on how to install JUnit 5 on Ubuntu using Maven as the build tool.

Features of JUnit5:

1. Modular Architecture: JUnit 5 is designed with a modular architecture, allowing developers to use specific modules based on their testing needs. The framework consists of three main components: JUnit Platform, JUnit Jupiter, and JUnit Vintage.
2. JUnit Platform: The JUnit Platform serves as the foundation for launching testing frameworks on the Java Virtual Machine (JVM). It provides support for discovering, executing, and reporting test results.
3. JUnit Jupiter: JUnit Jupiter is the new programming and extension model for writing tests and extensions in JUnit 5. It supports modern testing features such as parameterized tests, dynamic tests, and the use of annotations like @BeforeEach and @AfterEach.
4. Annotations and Expressive Model: JUnit 5 introduces a set of new annotations that make the testing code more expressive and readable. Annotations like @Test, @BeforeAll, @AfterAll, and others contribute to a more declarative and flexible test structure.