Junior
What is regression testing?
sobes.tech AI
Answer from AI
Regression testing is a type of software testing aimed at confirming that recent changes in the code have not affected or damaged the existing functionality of the system. It ensures that previously working parts of the application continue to function correctly after modifications (bug fixes, new features, refactoring).
Key characteristics:
- Purpose: Detect defects that have appeared as a result of code changes.
- When conducted: After changes are made (new features, fixes, refactoring).
- What is tested: Existing, previously functioning functionality.
- How conducted: Re-execution of a set of existing test scenarios (regression suite).
- Types:
- Full regression: Testing all existing modules of the application. Conducted during significant changes.
- Partial regression: Testing affected modules and related ones. Conducted during minor changes.
- Corrective regression: Testing specific fixed defects and parts of the system that might have been affected by this fix.
Applying regression testing is crucial for maintaining the stability and quality of the product throughout its lifecycle. Automation of regression tests significantly increases the efficiency of this process.