1. Unit Testing:
Unit testing involves testing individual components or units of code in isolation to ensure they function correctly. It is usually performed by developers and focuses on verifying the behavior of small, independent units of code, such as functions or methods.
2. Integration Testing:
Integration testing verifies the interactions between different modules or components of a software system. It ensures that integrated units work together as expected and that data flows smoothly between them. Integration testing can be performed at various levels, including module integration, API integration, and system integration.
3. Functional Testing:
Functional testing evaluates the functional requirements of a software application by testing its features and functionalities against specified requirements. It verifies whether the application behaves as expected and meets user requirements. Functional testing can include test scenarios such as user interface testing, database testing, and workflow testing.
4. Regression Testing:
Regression testing ensures that recent code changes or modifications do not adversely affect existing functionalities. It involves retesting previously tested features to detect and prevent regressions, ensuring that new updates do not introduce unexpected bugs or errors.
5. Load Testing:
Load testing evaluates the performance of a software application under expected load conditions. It simulates multiple users or concurrent transactions to assess how the system handles increased workload and stress. Load testing helps identify performance bottlenecks, scalability issues, and resource constraints.
6. Stress Testing:
Stress testing assesses the robustness and stability of a software application by subjecting it to extreme conditions beyond normal operational limits. It involves testing the system’s resilience under heavy load, high traffic, or adverse environmental conditions to determine its breaking point and failure modes.