Testing of non-exposed functions

[Julius Bünger]

Hi all,

I have a question of secondary importance:

I recently asked the question whether we do unit tests in gnunet. Looking
at the examples pointed to in reply, I realize that I probably didn't
ask for what I meant. What I meant was:

Do we write tests for functions that are not exposed via API? And if so:
How do we?

The example at hand:
I think the pattern matching function of GNUNET_DISK_glob() has a bug
and I would like to test the pattern matching function without actually
interacting with the file system, without calling GNUNET_DISK_glob().

If there's no proper way, I'll simply go ahead and expand the
test_disk.c to cover GNUNET_DISK_glob() via the exposed API call.

Thanks in advance
julius/ch3

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