In the context of continuous integration, how do the roles of API testing and unit testing differ?
- API testing focuses on testing the integration of multiple components or systems through their APIs. It verifies the communication and data flow between different parts of a system. Unit testing, on the other hand, is concerned with testing individual units or functions in isolation. It ensures that each unit of code works as intended.
- API testing is less concerned with the integration of different components, focusing more on the functionality provided by an API. Unit testing, on the other hand, is crucial for verifying the correctness of individual units of code.
- API testing is more focused on the internal workings of a component, ensuring that the interactions between different parts are seamless. Unit testing, in contrast, is more concerned with the external behavior of a unit, checking if it produces the expected output for a given input.
- API testing is primarily concerned with the functionality exposed by an API, ensuring that it meets the specified requirements. Unit testing, however, tests individual units of code, typically at the function or method level, to validate their correctness.
In continuous integration, understanding the distinctions between API testing and unit testing is vital. While API testing verifies the interactions between different components, unit testing ensures the correctness of individual units of code. Both play complementary roles in maintaining the integrity of the entire system.
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