Gray box testing

Gray box testing is a software testing technique that uses a combination of black box testing and white box testing. Gray box testing is not black box testing, because the tester does know some of the internal workings of the software under test.

Gray box testing is a powerful idea. The concept is simple; if one knows something about how the product works on the inside, one can test it better, even from the outside. Gray box testing is not to be confused withwhite box testing ; i.e. a testing approach that attempts to cover the internals of the product in detail. Gray box testing is a test strategy based partly on internals. The testing approach is known as gray box testing, when one does have some knowledge, but not the full knowledge of the internals of the product one is testing.

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