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From: Brendan Higgins <brendanhiggins@google.com>
To: Greg KH <gregkh@linuxfoundation.org>,
	Kees Cook <keescook@google.com>,
	mcgrof@kernel.org, shuah@kernel.org,
	Joel Stanley <joel@jms.id.au>,
	mpe@ellerman.id.au, joe@perches.com, brakmo@fb.com,
	rostedt@goodmis.org, Tim.Bird@sony.com, khilman@baylibre.com,
	Julia Lawall <julia.lawall@lip6.fr>,
	linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	jdike@addtoit.com, richard@nod.at, linux-um@lists.infradead.org,
	dri-devel@lists.freedesktop.org, Rob Herring <robh@kernel.org>,
	dan.j.williams@intel.com, linux-nvdimm@lists.01.org,
	kieran.bingham@ideasonboard.com
Cc: daniel@ffwll.ch
Subject: Re: [RFC v2 00/14] kunit: introduce KUnit, the Linux kernel unit testing framework
Date: Thu, 25 Oct 2018 14:25:28 -0700	[thread overview]
Message-ID: <CAFd5g44RGcYzEb68y0jBpcpZPhbY9=M-==+9cNvs0XyMamobLA@mail.gmail.com> (raw)
In-Reply-To: <20181024091449.GL324@phenom.ffwll.local>

On Wed, Oct 24, 2018 at 2:14 AM Daniel Vetter <daniel@ffwll.ch> wrote:
>
> On Tue, Oct 23, 2018 at 04:57:36PM -0700, Brendan Higgins wrote:
<snip>
> > ## Changes Since Last Version
> >
> >  - Updated patchset to apply cleanly on 4.19.
> >  - Stripped down patchset to focus on just the core features (I dropped
> >    mocking, spying, and the MMIO stuff for now; you can find these
> >    patches here: https://kunit-review.googlesource.com/c/linux/+/1132),
> >    as suggested by Rob.
> >  - Cleaned up some of the commit messages and tweaked commit order a
> >    bit based on suggestions.
>
> Do you have some example unit tests somewhere? The docs are all neat, but
> real example helps a lot with the tried&true art of copypasting :-)

Yes! So I have quite a few tests for KUnit itself, but they are mostly
in the patches that I cut from the previous version of the RFC:
https://kunit.googlesource.com/linux/+/c58019fb4fe15f820e51f857ae4ff14cd34075af/kunit/mock-macro-test.c
https://kunit.googlesource.com/linux/+/c58019fb4fe15f820e51f857ae4ff14cd34075af/kunit/mock-test.c
https://kunit.googlesource.com/linux/+/c58019fb4fe15f820e51f857ae4ff14cd34075af/kunit/string-stream-test.c
https://kunit.googlesource.com/linux/+/c58019fb4fe15f820e51f857ae4ff14cd34075af/kunit/test-stream-test.c
https://kunit.googlesource.com/linux/+/c58019fb4fe15f820e51f857ae4ff14cd34075af/kunit/test-test.c

There are some in this patchset (like here:
https://lore.kernel.org/patchwork/patch/1002904/), but I should
probably include some more...

In any case, if you are looking for a more "realistic" example, you
could look at these sets of tests, which I think is pretty good, and
actually found a couple bugs in existing code:
https://kunit.googlesource.com/linux/+/e10484ad2f9fc7926412ec84739fe105981b4771/drivers/i2c/busses/i2c-aspeed-test.c
https://kunit.googlesource.com/linux/+/4b41b1594ffeab70f1b4364721940cb909509d97/net/ipv6/route-test.c

>
> I'd like to give this a test spin with some of the unit tests we already
> have in drm. And especially figuring out how we could integrate this with
> our existing infrastructure.

Awesome! I am looking forward to hearing how it goes!

Cheers

  reply	other threads:[~2018-10-25 21:25 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-23 23:57 [RFC v2 00/14] kunit: introduce KUnit, the Linux kernel unit testing framework Brendan Higgins
2018-10-23 23:57 ` [RFC v2 01/14] kunit: test: add KUnit test runner core Brendan Higgins
2018-11-02 18:44   ` Shuah Khan
2018-11-07  1:28     ` Brendan Higgins
2018-11-07 20:02       ` Shuah Khan
2018-10-23 23:57 ` [RFC v2 02/14] kunit: test: add test resource management API Brendan Higgins
2018-10-23 23:57 ` [RFC v2 03/14] kunit: test: add string_stream a std::stream like string builder Brendan Higgins
2018-10-23 23:57 ` [RFC v2 04/14] kunit: test: add test_stream a std::stream like logger Brendan Higgins
2018-10-23 23:57 ` [RFC v2 05/14] kunit: test: add the concept of expectations Brendan Higgins
2018-10-23 23:57 ` [RFC v2 06/14] arch: um: enable running kunit from User Mode Linux Brendan Higgins
2018-10-23 23:57 ` [RFC v2 07/14] kunit: test: add initial tests Brendan Higgins
2018-10-23 23:57 ` [RFC v2 08/14] arch: um: add shim to trap to allow installing a fault catcher for tests Brendan Higgins
2018-10-23 23:57 ` [RFC v2 09/14] kunit: test: add the concept of assertions Brendan Higgins
2018-10-23 23:57 ` [RFC v2 10/14] kunit: add Python libraries for handing KUnit config and kernel Brendan Higgins
2018-10-23 23:57 ` [RFC v2 11/14] kunit: add KUnit wrapper script and simple output parser Brendan Higgins
2018-10-23 23:57 ` [RFC v2 12/14] kunit.py: improve output from python wrapper Brendan Higgins
2018-10-23 23:57 ` [RFC v2 13/14] Documentation: kunit: add documentation for KUnit Brendan Higgins
2018-10-23 23:57 ` [RFC v2 14/14] MAINTAINERS: add entry for KUnit the unit testing framework Brendan Higgins
2018-10-24  9:14 ` [RFC v2 00/14] kunit: introduce KUnit, the Linux kernel " Daniel Vetter
2018-10-25 21:25   ` Brendan Higgins [this message]
2018-10-25 17:40 ` Shuah Khan
2018-11-02 18:23 ` Shuah Khan
2018-11-07  1:17   ` Brendan Higgins
2018-11-07 17:46     ` Frank Rowand
2018-11-13 10:10       ` Brendan Higgins
2018-11-24  5:15 ` Knut Omang
2018-11-27  1:41   ` Brendan Higgins
2018-11-28 19:54     ` Knut Omang
2018-11-28 20:50       ` shuah
2018-11-30  0:59         ` Luis Chamberlain

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