TestNG is an open-source automated testing framework; where NG means Next Generation. The creator of TestNG is Cedric Beust. It gives the developer the ability to write more flexible and powerful tests. TestNG uses more Java and OO features.

Let's jump on to the TestNG installation

Launch the Eclipse IDE and click “Install New Software” in the Help menu and a new installation dialogue window will appear, click the “Add” button. Fill out the information as follows:

Name: TestNG (depends on the user)

Location:https://dl.bintray.com/testng-team/testng-eclipse-release/6.14.3/ and Click Add.

Clicking on add redirects back to the previous window and TestNG option is available in the software list. After that, check “TestNG” and click Next. Click Next to install the TestNG dependencies that eclipse calculate by itself after that, accept the terms of the license agreement then click Finish. One may or may not encounter a Security warning. Click Install Anyway if you do. After that, click “Restart Now” to restart the eclipse and finish the installation setup. Finally, after the restart, verify if TestNG is installed successfully and right-click on the project and see if TestNG displays in the opened menu.