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Regression Testing

What is Regression Testing?

Regression testing a black box testing technique that consists of re-executing those tests that are impacted by the code changes. These tests should be executed as often as possible throughout the software development life cycle.

Types of Regression Tests:

  • Final Regression Tests: - A "final regression testing" is performed to validate the build that hasn't changed for a period of time. This build is deployed or shipped to customers.

  • Regression Tests: - A normal regression testing is performed to verify if the build has NOT broken any other parts of the application by the recent code changes for defect fixing or for enhancement.

Selecting Regression Tests:

  • Requires knowledge about the system and how it affects by the existing functionalities.

  • Tests are selected based on the area of frequent defects.

  • Tests are selected to include the area, which has undergone code changes many a times.

  • Tests are selected based on the criticality of the features.

Regression Testing Steps:

Regression tests are the ideal cases of automation which results in better Return On Investment (ROI).

  • Select the Tests for Regression.

  • Choose the apt tool and automate the Regression Tests

  • Verify applications with Checkpoints

  • Manage Regression Tests/update when required

  • Schedule the tests

  • Integrate with the builds

  • Analyze the results