manual - What's the difference between Gray box and Black box testing? -

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i m trying understand 1 in terms of how compares other.

is grey box testing can see code , black box testing don't @ code?

black box testing when know nothing system. know input , check output without knowing process in between input , output.

grey box testing same know things internals of system. example have knowledge architecture or have implementation documents. mix of white (see further) , black box testing (it's in between).

white box testing when know system. source code, architecture. test program completely, check if doing expected, check exceptions or errors. have understand how code works.

so answer question, both black box , grey box testing don't check code. in grey box testing it's more internal structure , architecture have knowledge, in algorithms used.

you can find info on wikipedia or this url explains white, grey , black box testing.


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