What is the difference between TestNG and JUnit?

JUnit is an open-source framework used to trigger and write tests. TestNG is a Java-based framework that is an upgraded option for running tests. JUnit does not support to run parallel tests. TestNG can run parallel tests.

Why TestNG is preferred over JUnit?

TestNG enables you to group test cases easily which is not possible in JUnit. TestNG do not require extend any class. TestNG allows to execute test cases based on group which isn’t possible in JUnit. Parallel execution of Selenium test cases is possible in TestNG.

Can we use both TestNG and JUnit?

You can execute your existing JUnit test cases using TestNG. TestNG can automatically recognize and run JUnit tests, so that you can use TestNG as a runner for all your existing tests and write new tests using TestNG.

Which is best TestNG or JUnit?

Both TestNG and JUnit are Testing frameworks used for Unit Testing. TestNG is inspired by JUnit, so in a way these are similar. Few more functionalities are added to TestNG which makes it more powerful than JUnit. JUnit is ranked first with a presence in 62% of the projects, and TestNG was in at #20 with 6%.

What are the disadvantages of TestNG?

It’s less commonly used compared to JUnit, so fewer people have experience with it (and fewer integrations). But then fewer people have experience with JUnit 5 compared to JUnit 4. Other than that, both TestNG and JUnit are adequate for testing and have similar features.

Which one is better JUnit or TestNG?

Both Testng and Junit are Testing framework used for Unit Testing. TestNG is similar to JUnit. Few more functionalities are added to it that makes TestNG more powerful than JUnit.

What is the limitation for using JUnit?

But it also has some limitations like: It cannot do dependency testing as opposed to TestNG framework. It’s not suitable for higher level testing i.e. for large test suites. Group testing cannot be done in JUnit, which is available in TestNG.