Regression testing: Difference between revisions

Revision as of 09:12, 31 March 2004

Revision as of 23:30, 26 May 2004

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<I>Remaining questions - who invented the term? Who was the first to use it systematically?</I>

As a consequence of the introduction of new bugs, program maintenance requires far more system testing per statement written than any other programming. Theoretically, after each fix one must run the entire backbatch of test cases previously run against the system, to ensure that it has not been damaged in an obscure way. In practice, such <i>regression testing</i> must indeed approximate this theoretical idea, and it is very costly. -- Fred Brooks, Mythical Man Month (p 122)