TestNG organises, reads, maintains, and simplifies automated tests. It has a lot of functionality and reports. Its high-end annotations, such as dataprovider, make cross-browser testing across various devices, browsers, and versions easier.
The testing framework is called TestNG (Test Next Generation). TestNG is based on JUnit and NUnit, but it adds new features to make the framework more powerful and user-friendly. TestNG is built in such a way that it can handle all types of tests, including unit, functional, and integration tests.
NG stands for 'Next Generation,' and TestNG is an open-source testing platform. It's designed to make a wide range of testing tasks easier, from unit testing through system integration testing. Both JUnit and TestNG were created with the express purpose of unit testing in mind.
TestNG supports parallel testing, allowing you to execute numerous test cases on many platforms while connecting easily with CI/CD infrastructures like Jenkins. Annotations are a nice feature in TestNG that allows developers to quickly comprehend the code while also resolving exceptions automatically.