What is JUnit? What are important features of JUnit?

JUnit is a Java programming language unit testing framework. It’s written in Java and is maintained by the JUnit.org community as Open Source Software.

JUnit’s import features include:

  • It’s a framework that’s free to use.
  • Annotation is provided to identify the test procedures.
  • Assertions are provided to test expected results.
  • Test runners are provided to perform tests.
  • JUnit tests may be performed automatically, and they can examine and offer instant feedback on their own results.
  • JUnit tests can be grouped into test suites, which comprise test cases and perhaps additional test suites.
  • JUnit displays test progress as a green bar if everything is going well and a red bar if the test fails.