Topic: Unit Testing - Facilitates change

Message


   Unit Testing - Facilitates change


															Unit testing allows the programmer to refactor code at a later date, and make sure the module still 
															works correctly (i.e. regression testing). The procedure is to write test cases for all functions and 
															methods so that whenever a change causes a fault, it can be quickly identified and fixed.

															Readily-available unit tests make it easy for the programmer to check whether a piece of code is 
															still working properly. Good unit test design produces test cases that cover all paths through the 
															unit with attention paid to loop conditions.
														
													
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															In continuous unit testing environments, through the inherent practice of
															sustained maintenance, unit tests will continue to accurately reflect the
															intended use of the executable and code in the face of any change. Depending
															upon established development practices and unit test coverage, up-to-the-second
															accuracy can be maintained.


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