Regression Testing
Testing that verifies existing functionality still works after code changes.
Full Definition
Regression testing ensures that new code changes haven't broken existing functionality. It's a critical part of maintaining software quality over time.
When to run regression tests:
- •After bug fixes
- •After new feature additions
- •After refactoring
- •Before releases
- •After environment changes
Types of regression testing:
- •Full Regression: Run all regression tests
- •Partial Regression: Run tests related to changed areas
- •Smoke Testing: Quick critical path verification
Regression testing challenges:
- •Suite grows over time
- •Execution time increases
- •Maintenance burden
- •Identifying which tests to run
Best practices:
- •Prioritize tests by risk and frequency of use
- •Automate stable regression tests
- •Use impact analysis to select relevant tests
- •Remove or fix flaky tests
Examples
- 1.Running login regression tests after authentication changes
- 2.Full regression suite before major release
- 3.Partial regression on checkout flow after payment update
In BesTest
BesTest Smart Collections can automatically group regression tests based on tags, making it easy to run targeted regression at any time.
Related Terms
Test Suite
A collection of test cases grouped together for a specific testing purpose.
Test Cycle
A single iteration of testing a specific set of test cases, typically associated with a release or sprint.
Smoke Testing
Quick testing of critical functionality to verify the build is stable enough for further testing.
Test Automation
Using software tools to execute tests automatically without manual intervention.
See Regression Testing in Action
Experience professional test management with BesTest. Free for up to 10 users.
Try BesTest Free