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Re: [Qemu-block] [Qemu-devel] [PATCH] qemu-iotests: add a "how to" to ./
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-block] [Qemu-devel] [PATCH] qemu-iotests: add a "how to" to ./README |
Date: |
Fri, 21 Jul 2017 16:51:46 +0100 |
User-agent: |
Mutt/1.8.0 (2017-02-23) |
On Fri, Jul 21, 2017 at 07:16:34AM -0500, Eric Blake wrote:
> On 07/21/2017 04:34 AM, Stefan Hajnoczi wrote:
> > There is not much getting started documentation for qemu-iotests. This
> > patch explains how to create a new test and covers the overall testing
> > approach.
> >
> > Cc: Ishani Chugh <address@hidden>
> > Signed-off-by: Stefan Hajnoczi <address@hidden>
> > ---
>
> > +3. Assign groups to the test
> > +
> > +Add your test to the ./group file. This file is the index of tests and
> > assigns
> > +them to functional groups like "rw" for read-write tests. Most tests
> > belong to
> > +the "rw" and "auto" groups. "auto" means the test runs when ./check is
> > invoked
> > +without a -g argument.
> > +
> > +Consider adding your test to the "quick" group if it executes quickly
> > (<1s).
>
> We have several tests going up to 5s (and I have a patch pending to
> remove two tests that took longer) - I think 1s is a bit on the short
> end for still classifying a test as quick.
I'm happy to accept any number blessed by Kevin. I do think that 1
second is a safe maximum and no one should get in trouble for adding a
test that takes 1 second to the "quick" group.
> > +This group is run by "make check-block" and is often included as part of
> > build
> > +tests in continuous integration systems.
>
> It would still be nice to have 'make check' run 'make check-block'...
> but that's independent of this patch.
Yes, there is a separate discussion about that on the list right now.
Hopefully it will be added back.
> > +Once you are happy with the test output it can be used as the golden master
> > +with "mv <test-number>.out.bad <test-number>.out". Rerun the test to
> > verify
> > +that it passes.
> > +
> > +Congratulations, you've created a new test!
>
> Maybe a reminder to 'git add' the new files, then submit the patch?
I thought about this too but decided not to get into the git and patch
submission business. I carefully worded it to be about "creating" tests
rather than "adding" them to qemu.git because I wanted to limit the
scope of this README :).
Stefan
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