Test Selection
Test selection is a software testing technique that involves choosing a subset of tests from a larger test suite to run based on specific criteria, such as recent code changes, risk factors, or time constraints. It aims to optimize testing efficiency by reducing execution time and resources while maintaining adequate test coverage. This approach is commonly used in continuous integration/continuous deployment (CI/CD) pipelines and large-scale projects to balance thoroughness with practical constraints.
Developers should learn and use test selection to accelerate feedback loops in agile and DevOps environments, especially when dealing with extensive test suites that take too long to run. It is crucial for maintaining fast CI/CD pipelines, enabling frequent deployments without sacrificing quality, and focusing testing efforts on high-risk or recently modified areas of the codebase. This methodology helps teams prioritize tests effectively, reducing bottlenecks and improving overall development velocity.