suresh Functional testing and unit testing are two essential components in software development that serve distinct purposes.
Unit testing focuses on testing individual units or components of the software in isolation, typically at the code level. It ensures that each unit functions correctly as per the developer's intent and specifications. Unit testing helps catch bugs and issues early in the development process, making it easier to identify and fix issues.
On the other hand, functional testing evaluates the complete functionality of the software by testing the software as a whole, rather than individual components. It involves testing the software against the functional requirements to ensure that the end product meets the desired specifications and performs as expected from the user's perspective.
In summary, unit testing is more granular and focuses on testing individual components, while functional testing is holistic and evaluates the overall functionality of the software. Both types of testing are crucial in ensuring the quality and reliability of the software product.
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