How do I automate the re-run of failed test cases in a testng suite execution?

As an experienced tutor in automation testing registered on UrbanPro.com, I'll guide you on automating the re-run of failed test cases in a TestNG suite execution. This approach is beneficial for ensuring the robustness of your test suite by addressing intermittent failures.

Automating Re-Run of Failed Test Cases in TestNG

1. Introduction to TestNG Rerun Mechanism

a. Purpose:

• Automating the re-run of failed test cases helps in identifying and addressing intermittent test failures.

b. Key Benefits:

• Increases test reliability by handling occasional failures.
• Provides a more accurate reflection of application health.

2. Implementation Steps

a. 1st TestNG Execution:

• Perform the initial TestNG suite execution.

b. Generate a List of Failed Test Cases:

• Extract the list of failed test cases from the test execution report.

c. Modify TestNG XML for Re-Run:

• Create a new TestNG XML file or modify the existing one to include only the failed test cases.

d. Re-Run Failed Test Cases:

• Execute the TestNG suite using the modified XML, focusing only on the failed test cases.

e. Repeat if Necessary:

• If needed, repeat the process until all test cases pass or reach a predefined maximum number of re-runs.

3. Using TestNG Listener for Re-Run

a. Implementing IRetryAnalyzer Interface:

• Create a class implementing the IRetryAnalyzer interface in TestNG.

b. Configuring Retry Annotation:

• Add the @RetryAnalyzer annotation to the test methods or classes that should be retried.

c. Setting Maximum Retry Attempts:

• Configure the maximum number of retry attempts in the TestNG XML file.

4. Online Coaching on UrbanPro.com

a. Automation Testing Coaching with TestNG Re-Run Strategies:

• Expert Guidance:
  • Connect with experienced tutors on UrbanPro.com for coaching on automation testing, emphasizing TestNG re-run strategies.
• Practical Scenarios:
  • Engage in hands-on sessions to understand the practical implementation of re-running failed test cases.

b. Best Online Coaching for Automation Testing:

• Comprehensive Learning:
  • UrbanPro.com hosts the best online coaching sessions for automation testing, ensuring learners gain expertise in advanced TestNG features like test rerun strategies.

Conclusion

Automating the re-run of failed test cases in a TestNG suite is essential for maintaining the reliability of your automation testing process. Connect with skilled tutors on UrbanPro.com for expert coaching, ensuring you master the techniques to efficiently handle intermittent test failures and produce more robust test results.