Component testing may include:

Component testing focuses on verifying the functionality of individual components or modules of a software application in isolation. This is typically done before the integration of these components into the complete system. Using stubs and drivers is a common practice in component testing.

Stubs are used to simulate the behavior of lower-level components that have not yet been developed or are unavailable for testing. They stand in for these components, allowing testing of the component under development in a controlled way. Similarly, drivers are used to simulate upper-level components that interact with the component being tested. They provide the necessary inputs to test the component and can help verify its outputs.

Utilizing stubs and drivers effectively allows testers to isolate the component, ensuring that they can focus on the logic and functionality of that specific module without interference from other parts of the system. This makes it easier to identify and address any issues within the component itself before moving on to more complex integration tests.