Top-down testing involves testing the top-level modules first and progressively integrating and testing lower-level modules.
* Stubs:
* Definition: A stub is a piece of code used to simulate the behavior of lower-level modules that are not yet developed or integrated.
* Functionality: Provides a temporary implementation that allows the top-level module to be tested without the presence of actual lower-level modules.
* Purpose in Top-Down Testing:
* Facilitate Testing: Enables the testing of higher-level modules early in the development process.
* Incremental Integration: Supports the progressive integration of modules as they become available.
* References: Standard software testing practices and methodologies describe the use of stubs in top-down testing as an effective approach to manage incomplete components during early testing phases.