Funktsioonitest

Funktsioonitest, or functional testing, is a type of software testing that verifies whether a system's functions and features operate according to the requirements. It focuses on the "what" the software does, rather than the "how" it does it. The primary goal is to validate the application against its specified functional requirements.

Functional testing is typically performed from the user's perspective. Testers interact with the software as an end-user would, executing specific test cases designed to cover all known functionalities. This includes inputting data, performing actions, and checking if the output or system behavior matches the expected results. Common types of functional tests include unit testing, integration testing, system testing, and acceptance testing.

The process usually involves creating detailed test plans and test cases. These documents outline the specific steps to be taken, the expected outcomes, and the conditions under which the tests should be executed. After running the tests, any discrepancies between the actual and expected results are reported as defects or bugs. Fixing these defects and retesting ensures the software meets its functional specifications before deployment.

Functional testing is crucial for ensuring software quality and reliability. By systematically checking each function, it helps to identify and resolve errors early in the development lifecycle, leading to a more robust and user-friendly product. It provides confidence that the software behaves as intended and meets the needs of its users.