Sandwich Testing
Sandwich testing is a hybrid software testing approach that combines top-down and bottom-up testing strategies to validate integrated systems. It involves testing from both the top (user interface or high-level modules) and the bottom (low-level modules or units) simultaneously, meeting in the middle to ensure comprehensive coverage. This method is particularly useful for large, complex systems where integration testing is critical.
Developers should use sandwich testing when working on modular applications with well-defined interfaces, such as microservices or layered architectures, to efficiently identify integration issues early in the development cycle. It is beneficial in scenarios where both high-level functionality and low-level components need validation, reducing the risk of defects in system integration and improving overall software quality.