In contrast to API testing, what is a primary characteristic of unit testing?
- Checking the performance of the entire system
- Ensuring the overall system functionality
- Testing individual functions or methods in isolation
- Verifying the communication between different components
Unit testing primarily involves testing individual functions or methods in isolation. It aims to validate the correctness of each unit of code independently. This level of testing helps catch issues at the smallest granularity, allowing developers to identify and fix bugs early in the development process.
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