How To Run JUnit Test Cases from the Command Line

How to Run JUnit Test Cases From the Command Line

JUnit is an open source unit testing framework for the Java programming language. It enables developers to write and execute tests quickly and easily, making unit testing an integral part of the development process. Running JUnit test cases from the command line can be very useful if you want to automate part of your build process or just run some tests outside of your IDE.

Prerequisites

To run JUnit test cases from the command line, you’ll need:

• A Java compiler (e.g. javac)
• The JUnit jar file (e.g. junit.jar)
• Your compiled Java class files

Steps to Run JUnit Test Cases From the Command Line

1. Compile your Java program: javac MyProgram.java
2. Compile your test class: javac -cp .;junit.jar MyTest.java
3. Run the JUnit test: java -cp .;junit.jar org.junit.runner.JUnitCore MyTest

Conclusion

Running JUnit test cases from the command line is a great way to quickly and easily execute tests without the need for an integrated development environment. With just a few commands you can use JUnit to automate part of the build process and keep your codebase healthy.