regressiotesteistä

Regression testing is a type of software testing that verifies that recent code changes have not adversely affected existing features. The primary goal is to ensure that previously developed and tested software still functions as expected after modifications. This is crucial because even small changes can introduce unintended side effects in other parts of the application.

Regression testing is typically performed after bug fixes, new feature implementations, or any other code modifications. The process involves re-executing a subset of previously executed test cases to confirm that the functionality has not been broken. The selection of test cases for regression is often based on risk assessment, prioritizing areas most likely to be impacted by the recent changes.

Automated regression testing is widely adopted to increase efficiency and coverage. Automating repetitive test execution allows developers and testers to run tests more frequently, detect regressions earlier in the development cycle, and reduce manual effort. This leads to faster feedback loops and a more stable software product.

While the scope of regression testing can vary, it remains an essential practice in software development to maintain the quality and reliability of the application over time. It helps prevent the reintroduction of old bugs and ensures that the software behaves as intended with each new iteration.