Description: Layer testing is an approach within test-driven development (TDD) that focuses on the functionality of individual layers in a layered architecture. This type of testing allows developers to verify that each layer of the application, such as the presentation layer, business layer, and data layer, works correctly in isolation. By testing each layer, errors can be identified and corrected more efficiently, contributing to higher software quality. Layer testing is particularly useful in complex architectures, where interactions between layers can be difficult to trace. This approach not only improves code maintainability but also facilitates the integration of new functionalities, as each layer can be tested independently before being integrated with others. Additionally, layer testing encourages the creation of more modular and reusable code, which is fundamental in agile development and the implementation of DevOps practices. In summary, layer testing is an essential tool in a developer’s arsenal, allowing for a systematic and structured approach to ensuring software quality in modern development environments.
