shikhawat
Joined: 29 Aug 2007
Posts: 17
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 Posted: Sat Sep 01, 2007 7:57 pm Post subject: How to Choose a Black Box or White Box Test |
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| Black box testing is generally performed by QA analysts who are concerned about the predictability of the end-user experience. Their job is to make sure that the application meets customer requirements and that the system does what it's designed to do. But black box tests offer no guarantee that every line of code has been tested. Being architecture independent, black box testing cannot determine the efficiency of the code. Finally, black box testing will not find any errors, such as memory leaks, that are not explicitly and instantly exposed by the application. This stands in sharp contrast to white box testing, in which, given an infinite amount of time, all lines of code can be tested and clues as to the code's relative efficiency can be ascertained. Generally, developers whose time is relatively more expensive than that of QA analysts perform white box testing. White box testing proves insufficient, however, for situations in which testing isolated components may not reveal integration errors with other components. |
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