Which type of testing is typically performed before integration testing?

Unit testing is typically performed before integration testing as it focuses on validating individual components or modules of the software. During unit testing, developers test the smallest parts of the application in isolation to ensure they function correctly according to their specifications. This phase involves checking the internal logic and specific functionality of the code, enabling early detection of bugs or issues.

Once unit testing is complete and individual components are verified, they can be integrated to form larger parts of the application. It is only after this integration phase that testing can progress to integration testing, where interactions between these components are examined. This sequential approach is fundamental in software testing, as it allows for foundational validation before combining parts into a larger system, preventing integration complexities and enhancing the overall stability of the software.