[LTP] [PATCH v2] Rewrite fcnt14 test

[Petr Vorel]

Hi Andrea, Li,

> Hi Andrea,

...
> > +struct tst_results {
> > +       int num_pass;
> > +       int last_failed;
> > +};


> Well, I do not object to hiding the test outputting during
> each run, but the disadvantage is if we deploy LTP in CI/CD
> typically we get nothing useful on one-off failure logs.
> (thus we have to rerun it with '-D' manually for reproduction)

@Li For CI is more convenient to set LTP_ENABLE_DEBUG=1 environment variable.
-D was meant for runtime testing when developing a test (faster than set
an environment variable).

I updated it in the docs (it was not mentioned there):
https://linux-test-project.readthedocs.io/en/latest/developers/debugging.html

> So I can't tell if the total results are meaningful unless we get PASS
> every run.

> Or, we give more options in the runtest file for user choice?

> # cat /runtest/syscalls
> fcntl14_03  fcntl14 -n 10 -D
> fcntl14_03_64  fcntl14_64 -n 10 -D
> fcntl14_04  fcntl14 -n 10 -D -l
> fcntl14_04_64  fcntl14_64 -n 10 -D -l

> And, "tst_" prefix is only used by LTP common APIs, so here we shouldn't
> abuse it.

+1

Kind regards,
Petr