Re: fs-test.c OH My

Karl Fogel <kfogel@newton.ch.collab.net> wrote:
> Ah, understood. But imho, any function is eligible to be tested;
> there's no reason for the fs api to treat testing callers differently
> from other callers. There isn't any such thing as "test aware". If
> it's there, it can be tested :-).

Black-box testing requires no knowledge of, or access to, the internals
of an implementation.

But what about white-box testing? It's sometimes easier and more
effective for the test to know something of the internals of an
implementation, and to sanity check those internals during testing.

It's not unusual for a library or module to expose certain internals in
order for them to be tested.

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