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I have 2 projects in solution. In one class where there are private methods that need to be tested. Another project is unit tests. I know that I can use friendly builds to access the private methods of that class. Tell me how to do this? It is desirable, as detailed as possible.
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Unit tests usually cover the publicly visible part. For tests and for a “user” (a programmer using your api) class is a black box — something is passed to the input, something is received at the output, and this is being tested.
If you have a need to test private methods, you may be violating the single responsibility principle. Try decomposition, select an additional class and access it yourself (and test it) on the black box principle. And private members are its internal state, which should not be interesting outside this class.
Source: https://ru.stackoverflow.com/questions/635209/
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