Quality Assurance

With the advent of agile and DevOps methodologies, QA has become an integral part of the entire development cycle. QA is now integrated into every phase of development, enabling faster bug detection and resolution, better collaboration between teams, and continuous quality improvement.

Unit Testing is a basic form of testing that focuses on verifying individual components or modules of an application. The goal is to ensure that each piece of code works correctly in isolation. Unit tests are usually automated and performed during development, allowing for quick detection of bugs in the early stages. Tools like JUnit for Java or pytest for Python are popular choices for implementing unit tests.

Load and Stress Testing are key to ensuring application performance and stability under load. Load Testing simulates a normal user load to verify that the application can handle the expected number of users and transactions. Stress Testing goes even further and tests the application under extreme conditions to identify system limits and potential points of failure. Apache JMeter is a popular tool for performing load and stress testing due to its ability to simulate high loads and measure application performance.