How Do I Run JUnit Test Cases from the Command Line?

Running JUnit Test Cases from the Command Line

Executing JUnit test cases through the command line offers a convenient method for developers to test their code outside of an integrated development environment (IDE). Here's how to achieve this for different versions of JUnit:

JUnit 5.x

java -jar junit-platform-console-standalone-<version>.jar <Options>

For more details, visit https://stackoverflow.com/a/52373592/1431016 and https://junit.org/junit5/docs/current/user-guide/#running-tests-console-launcher.

JUnit 4.x

java -cp .:/usr/share/java/junit.jar org.junit.runner.JUnitCore [test class name]

JUnit 3.x

java -cp .:/usr/share/java/junit.jar junit.textui.TestRunner [test class name]

Depending on your environment and class file organization, you may need to adjust the classpath to include additional JARs or directories. Globs can be used in classpath for Java 6 environments, allowing you to simplify the process:

java -cp lib/*.jar:/usr/share/java/junit.jar ...

By following these instructions, you can efficiently run your JUnit test cases from the command line, enhancing your testing capabilities and ensuring the quality of your codebase.

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