JUnit vs TestNG: Which is Better for Performance?

What are the performance differences between JUnit and TestNG?

JUnit and TestNG have different performance characteristics. TestNG is generally considered more flexible and can handle larger test suites better due to its parallel execution capabilities.

Can you explain how TestNG's parallel execution works?

Sure! TestNG allows you to run tests in parallel by configuring the test suite XML file. You can specify the 'parallel' attribute to run tests, classes, or methods concurrently, which can significantly reduce execution time.

Are there any specific scenarios where JUnit outperforms TestNG?

Yes, JUnit can be more efficient for smaller test suites or when you need a simple setup without the overhead of TestNG's features. It's also widely used in projects that require a straightforward testing approach.

Which framework do you recommend for a large-scale project?

For large-scale projects, TestNG is often recommended due to its advanced features like parallel execution, data-driven testing, and better reporting capabilities.