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Using an automation framework, the developer codes criteria into the test to verify the correctness of the code.
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This is a more thorough unit testing practice that involves copy and paste of code to its own testing environment than its natural environment. A developer could also isolate the function to test it more rigorously.They would later comment out and finally remove the test code when the application is deployed. A developer writes a section of code in the application just to test the function.
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A manual approach to unit testing may employ a step-by-step instructional document.
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Software Engineering does not favor one over the other but automation is preferred. Unit testing is commonly automated but may still be performed manually. Developers generally use UnitTest framework to develop automated test cases for unit testing. Developers can also isolate this function to test more rigorously which reveals unnecessary dependencies between function being tested and other units so the dependencies can be eliminated. In order to do Unit Testing, developers write a section of code to test a specific function in software application.
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UNIT TESTING is a type of software testing where individual units or components of a software are tested.