Software testing executes a program or application to check whether the actual results match the expected results and to assure that the software system is Bug- free. It can be either done manually or using automated tools. Software testing classified into two categories –

Functional Testing
Non – Functional Testing
Functional Testing reviews every aspect of a piece of software to make sure that it works correctly. Functional testing verifies that system should perform as expected when its features exercised by some other system or directly by a user.

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