How can I run parallel test with TestNG?

As an experienced tutor in automation testing registered on UrbanPro.com, I'm delighted to guide you through the process of running parallel tests with TestNG. Parallel execution is a crucial feature for optimizing test suite performance, and understanding how to implement it is essential for automation testers.

Running Parallel Tests with TestNG

1. TestNG XML Configuration

• Create a TestNG XML file:
  • Define your test suite structure in an XML file.
  • Specify the classes or methods you want to run in parallel.

2. Parallel Attribute in XML

• Set the Parallel Attribute:
  • Use the parallel attribute in the <suite> tag to define the parallel execution mode.
  • Options include tests, classes, methods, instances, and suites.

3. Thread Count Configuration

• Specify Thread Count:
  • Utilize the thread-count attribute in the <suite> tag to define the number of parallel threads.
  • Adjust the thread count based on the available system resources and test suite complexity.

4. Annotations for Parallel Execution

• Use TestNG Annotations:
  • Annotate your test classes or methods with @Test annotations.
  • Leverage annotations like @BeforeMethod and @AfterMethod for setup and teardown.

5. Parallel Execution with Data Providers

• Combine with Data Providers:
  • If using data-driven testing, integrate parallel execution with data providers.
  • Ensure that each set of data runs concurrently, maximizing efficiency.

6. Run TestNG Suite

• Execute the Suite:
  • Run the TestNG suite either programmatically or through a build tool like Maven.
  • Monitor the parallel execution and analyze the generated reports.

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Conclusion

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