How to Select Regression Test Cases for Automation?

Choosing regression test cases to automate is essential in managing software quality and streamlining testing efforts. Below are some considerations and strategies to help you select proper test cases:

Criteria for Selecting Regression Test Cases

• Repetitiveness: Choose test cases that are executed frequently, such as those verifying core functionalities or recurring workflows.
• Criticality: Prioritize test cases that cover business-critical functionalities or high-impact areas prone to defects (e.g., login, payment processing).
• Stability: Focus on stable test cases that are unlikely to change frequently, reducing maintenance overhead.
• Code Change Coverage: Include tests for areas of the application that undergo frequent changes or updates.
• Integration Tests: Ensure integration tests are part of the regression suite to verify seamless interaction between modules.
• Field Validation: Add test cases that validate user input fields and other high-risk areas.

Techniques for Regression Test Selection

• Regression Test Selection:
• Select a subset of test cases relevant to recent code changes.
• Categorize them as reusable (for future cycles) or obsolete.
• Prioritization:
• Rank test cases based on severity, risk, or frequency of execution.
• Execute high-priority tests first to maximize efficiency.
• Hybrid Strategy:
• Combine selection and prioritization techniques to balance coverage and effort.
• Test Suite Minimization:
• Remove redundant or outdated test cases to streamline the suite.

Steps to Automate Regression Test Cases

• Understand Requirements:
• Identify whether tests target front-end, back-end, or both.
• Pick Suitable Tools:
• Select tools like LamdaTest based on your application needs.
• Identify P0/P1 Test Cases:
• Start with critical (P0) and high-priority (P1) scenarios before expanding to lower-priority ones.
• Prepare Regression Suite:
• Organize test cases into categories like Smoke, Sanity, and Regression for efficient execution.
• Integrate CI/CD Tools:
• Schedule automated suites to run regularly using CI/CD tools for continuous testing.

If your team can follow these rules/strategies to engage regression testing, you can be efficient and reduce cost and maintain and develop quality software.