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[Term] Functional Test [Description] 
A functional test is a larger test, which can also be a unit test, designed to test packages of classes or sub part of the overall application infrastructure. Functional test validates if the application meets one of the customer’s external requirements on performance, results and efficiency. Symptom: a functional test is not necessarily a unit test, and not all functional tests are acceptance tests.
Peter Pilgrim :: Java Champion :: Enterprise Blog » Agile Software Developer Terminology for New Programmers
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