How can I execute tests in parallel using TestNG?

How can I execute tests in parallel using TestNG?

You can execute tests in parallel in TestNG by configuring the testng.xml file. Set the parallel attribute to methods or classes and specify the thread-count.

Can you show me an example of the testng.xml configuration?

Sure! Here's a simple example:

<suite name="Parallel Tests" parallel="methods" thread-count="5">
    <test name="Test1">
        <classes>
            <class name="com.example.TestClass1"/>
        </classes>
    </test>
    <test name="Test2">
        <classes>
            <class name="com.example.TestClass2"/>
        </classes>
    </test>
</suite>

What are the benefits of running tests in parallel?

Running tests in parallel can significantly reduce the overall execution time, improve resource utilization, and help identify concurrency issues.

Are there any limitations or considerations I should be aware of?

Yes, you should ensure that your tests are thread-safe and do not share mutable state. Also, be cautious of resource contention.