What are the advantages and disadvantages of using the command line to run TestNG?

Advantages of using the command line to run TestNG:

• Flexibility and automation: easily integrate test runs into scripts, CI/CD pipelines.
• Targeted execution: ability to run specific tests or groups of tests via XML configurations.
• No dependency on IDE: tests can be run on a server or in an environment without a graphical interface.

Disadvantages:

• Complex setup: requires knowledge of command syntax and parameters.
• Less visual clarity: no visual interface for viewing results, as in IDEs.
• Parameter errors: easy to make typos or specify incorrect paths to configuration files.

Example of running TestNG from the command line:

testng -testclass com.example.MyTestClass

Or using an XML configuration:

testng testng.xml