How to properly write tests for kernel functions

Greg KH greg at
Thu Nov 5 14:54:20 EST 2015

On Thu, Nov 05, 2015 at 11:43:36AM +0300, Maxim Pugachev wrote:
> >> So, I'm wondering, whether there is an example or guidelines that is
> >> worth to follow.
> >
> > It all depends on what you want to test.  There is no "general" way to
> > do this as all subsystems / parts of the kernel are different.
> I'd like to add more tests in lib/test-hexdump.c. To my mind, I have 2 options:
> follow the current style, or perform a bit of reorganization. I'm
> inclined to the
> second one given that the addition of new tests may lead to unreadable code.
> But I doubt which way is better in this case.

It's up to you, but if you do reorganize the code, do that in a patch
series that changes the structure before adding new tests, in order for
them to be accepted upstream.

good luck!

greg k-h

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