From: kieran.bingham at ideasonboard.com (Kieran Bingham) Subject: [RFC v3 14/19] Documentation: kunit: add documentation for KUnit Date: Wed, 13 Feb 2019 21:55:39 +0000 [thread overview] Message-ID: <eade3052-0aa4-90b4-d55b-8c44556f98bc@ideasonboard.com> (raw) In-Reply-To: <CAFd5g46AEquMKzfrjLDVi+PP5-7aGs6C6pCunGAXDn3VRkJP+g@mail.gmail.com> Hi Brendan, On 12/02/2019 22:10, Brendan Higgins wrote: > On Mon, Feb 11, 2019 at 4:16 AM Kieran Bingham > <kieran.bingham at ideasonboard.com> wrote: >> >> Hi Brendan, >> >> On 09/02/2019 00:56, Brendan Higgins wrote: >>> On Thu, Dec 6, 2018 at 4:16 AM Kieran Bingham >>> <kieran.bingham at ideasonboard.com> wrote: >>>> >>>> Hi Brendan, >>>> >>>> On 03/12/2018 23:53, Brendan Higgins wrote: >>>>> On Thu, Nov 29, 2018 at 7:45 PM Luis Chamberlain <mcgrof at kernel.org> wrote: >>>>>> >>>>>> On Thu, Nov 29, 2018 at 01:56:37PM +0000, Kieran Bingham wrote: >>>>>>> Hi Brendan, >>>>>>> >>>>>>> Please excuse the top posting, but I'm replying here as I'm following >>>>>>> the section "Creating a kunitconfig" in Documentation/kunit/start.rst. >>>>>>> >>>>>>> Could the three line kunitconfig file live under say >>>>>>> arch/um/configs/kunit_defconfig? >>>> >>>> >>>> Further consideration to this topic - I mentioned putting it in >>>> arch/um/configs >>>> >>>> - but I think this is wrong. >>>> >>>> We now have a location for config-fragments, which is essentially what >>>> this is, under kernel/configs >>>> >>>> So perhaps an addition as : >>>> >>>> kernel/configs/kunit.config >>>> >>>> Would be more appropriate - and less (UM) architecture specific. >>> >>> Sorry for the long radio silence. >>> >>> I just got around to doing this and I found that there are some >>> configs that are desirable to have when running KUnit under x86 in a >>> VM, but not UML. >> >> Should this behaviour you mention be handled by the KCONFIG depends flags? >> >> depends on (KUMIT & UML) >> or >> depends on (KUNIT & !UML) >> >> or such? > > Not really. Anything that is strictly necessary to run KUnit on an > architectures should of course be turned on as a dependency like you > suggest, but I am talking about stuff that you would probably want to > get yourself going, but is by no means necessary. > >> >> An example of which configs you are referring to would help to >> understand the issue perhaps. >> > > For example, you might want to enable a serial console that is known > to work with a fairly generic qemu setup when building for x86: > CONFIG_SERIAL_8250=y > CONFIG_SERIAL_8250_CONSOLE=y > > Obviously not a dependency, and not even particularly useful to people > who know what they are doing, but to someone who is new or just wants > something to work out of the box would probably want that. It sounds like that would be a config fragment for qemu ? Although - perhaps this is already covered by the following fragment: kernel/configs/kvm_guest.config >>> So should we have one that goes in with >>> config-fragments and others that go into architectures? Another idea, >>> it would be nice to have a KUnit config that runs all known tests >> >> This might also be a config option added to the tests directly like >> COMPILE_TEST perhaps? > > That just allows a bunch of drivers to be compiled, it does not > actually go through and turn the configs on, right? I mean, there is > no a priori way to know that there is a configuration which spans all > possible options available under COMPILE_TEST, right? Maybe I > misunderstand what you are suggesting... Bah - you're right of course. I was mis-remembering the functionality of COMPILE_TEST as if it were some sort of 'select' but it's just an enable.. Sorry for the confusion. >> (Not sure what that would be called though ... KUNIT_RUNTIME_TEST?) >> >> I think that might be more maintainable as otherwise each new test would >> have to modify the {min,def}{config,fragment} ... >> > > Looking at kselftest-merge, they just start out with a set of > fragments in which the union should contain all tests and then merge > it with a base .config (probably intended to be $(ARCH)_defconfig). > However, I don't know if that is the state of the art. > >> >>> (this probably won't work in practice once we start testing mutually >>> exclusive things or things with lots of ifdeffery, but it probably >>> something we should try to maintain as best as we can?); this probably >>> shouldn't go in with the fragments, right? >> >> Sounds like we agree there :) > > Totally. Long term we will need something a lot more sophisticated > than anything under discussion here. I was talking about this with > Luis on another thread: > https://groups.google.com/forum/#!topic/kunit-dev/EQ1x0SzrUus (feel > free to chime in!). Nevertheless, that's a really hard problem and I > figure some variant of defconfigs and config fragments will work well > enough until we reach that point. > >> >>> >>> I will be sending another revision out soon, but I figured I might be >>> able to catch you before I did so. >> >> Thanks for thinking of me. > > How can I forget? You have been super helpful! > >> I hope I managed to reply in time to help and not hinder your progress. > > Yep, no trouble at all. You are the one helping me :-) > > Thanks! > -- Regards -- Kieran
WARNING: multiple messages have this Message-ID (diff)
From: kieran.bingham@ideasonboard.com (Kieran Bingham) Subject: [RFC v3 14/19] Documentation: kunit: add documentation for KUnit Date: Wed, 13 Feb 2019 21:55:39 +0000 [thread overview] Message-ID: <eade3052-0aa4-90b4-d55b-8c44556f98bc@ideasonboard.com> (raw) Message-ID: <20190213215539.4OMGwjQBCglIcaLkuuAc4CaQGFt3lS2EhQju8F8CycI@z> (raw) In-Reply-To: <CAFd5g46AEquMKzfrjLDVi+PP5-7aGs6C6pCunGAXDn3VRkJP+g@mail.gmail.com> Hi Brendan, On 12/02/2019 22:10, Brendan Higgins wrote: > On Mon, Feb 11, 2019 at 4:16 AM Kieran Bingham > <kieran.bingham@ideasonboard.com> wrote: >> >> Hi Brendan, >> >> On 09/02/2019 00:56, Brendan Higgins wrote: >>> On Thu, Dec 6, 2018 at 4:16 AM Kieran Bingham >>> <kieran.bingham@ideasonboard.com> wrote: >>>> >>>> Hi Brendan, >>>> >>>> On 03/12/2018 23:53, Brendan Higgins wrote: >>>>> On Thu, Nov 29, 2018@7:45 PM Luis Chamberlain <mcgrof@kernel.org> wrote: >>>>>> >>>>>> On Thu, Nov 29, 2018@01:56:37PM +0000, Kieran Bingham wrote: >>>>>>> Hi Brendan, >>>>>>> >>>>>>> Please excuse the top posting, but I'm replying here as I'm following >>>>>>> the section "Creating a kunitconfig" in Documentation/kunit/start.rst. >>>>>>> >>>>>>> Could the three line kunitconfig file live under say >>>>>>> arch/um/configs/kunit_defconfig? >>>> >>>> >>>> Further consideration to this topic - I mentioned putting it in >>>> arch/um/configs >>>> >>>> - but I think this is wrong. >>>> >>>> We now have a location for config-fragments, which is essentially what >>>> this is, under kernel/configs >>>> >>>> So perhaps an addition as : >>>> >>>> kernel/configs/kunit.config >>>> >>>> Would be more appropriate - and less (UM) architecture specific. >>> >>> Sorry for the long radio silence. >>> >>> I just got around to doing this and I found that there are some >>> configs that are desirable to have when running KUnit under x86 in a >>> VM, but not UML. >> >> Should this behaviour you mention be handled by the KCONFIG depends flags? >> >> depends on (KUMIT & UML) >> or >> depends on (KUNIT & !UML) >> >> or such? > > Not really. Anything that is strictly necessary to run KUnit on an > architectures should of course be turned on as a dependency like you > suggest, but I am talking about stuff that you would probably want to > get yourself going, but is by no means necessary. > >> >> An example of which configs you are referring to would help to >> understand the issue perhaps. >> > > For example, you might want to enable a serial console that is known > to work with a fairly generic qemu setup when building for x86: > CONFIG_SERIAL_8250=y > CONFIG_SERIAL_8250_CONSOLE=y > > Obviously not a dependency, and not even particularly useful to people > who know what they are doing, but to someone who is new or just wants > something to work out of the box would probably want that. It sounds like that would be a config fragment for qemu ? Although - perhaps this is already covered by the following fragment: kernel/configs/kvm_guest.config >>> So should we have one that goes in with >>> config-fragments and others that go into architectures? Another idea, >>> it would be nice to have a KUnit config that runs all known tests >> >> This might also be a config option added to the tests directly like >> COMPILE_TEST perhaps? > > That just allows a bunch of drivers to be compiled, it does not > actually go through and turn the configs on, right? I mean, there is > no a priori way to know that there is a configuration which spans all > possible options available under COMPILE_TEST, right? Maybe I > misunderstand what you are suggesting... Bah - you're right of course. I was mis-remembering the functionality of COMPILE_TEST as if it were some sort of 'select' but it's just an enable.. Sorry for the confusion. >> (Not sure what that would be called though ... KUNIT_RUNTIME_TEST?) >> >> I think that might be more maintainable as otherwise each new test would >> have to modify the {min,def}{config,fragment} ... >> > > Looking at kselftest-merge, they just start out with a set of > fragments in which the union should contain all tests and then merge > it with a base .config (probably intended to be $(ARCH)_defconfig). > However, I don't know if that is the state of the art. > >> >>> (this probably won't work in practice once we start testing mutually >>> exclusive things or things with lots of ifdeffery, but it probably >>> something we should try to maintain as best as we can?); this probably >>> shouldn't go in with the fragments, right? >> >> Sounds like we agree there :) > > Totally. Long term we will need something a lot more sophisticated > than anything under discussion here. I was talking about this with > Luis on another thread: > https://groups.google.com/forum/#!topic/kunit-dev/EQ1x0SzrUus (feel > free to chime in!). Nevertheless, that's a really hard problem and I > figure some variant of defconfigs and config fragments will work well > enough until we reach that point. > >> >>> >>> I will be sending another revision out soon, but I figured I might be >>> able to catch you before I did so. >> >> Thanks for thinking of me. > > How can I forget? You have been super helpful! > >> I hope I managed to reply in time to help and not hinder your progress. > > Yep, no trouble at all. You are the one helping me :-) > > Thanks! > -- Regards -- Kieran
next prev parent reply other threads:[~2019-02-13 21:55 UTC|newest] Thread overview: 232+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-11-28 19:36 [RFC v3 00/19] kunit: introduce KUnit, the Linux kernel unit testing framework brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 01/19] kunit: test: add KUnit test runner core brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-30 3:14 ` mcgrof 2018-11-30 3:14 ` Luis Chamberlain 2018-12-01 1:51 ` brendanhiggins 2018-12-01 1:51 ` Brendan Higgins 2018-12-01 2:57 ` mcgrof 2018-12-01 2:57 ` Luis Chamberlain 2018-12-05 13:15 ` anton.ivanov 2018-12-05 13:15 ` Anton Ivanov 2018-12-05 14:45 ` arnd 2018-12-05 14:45 ` Arnd Bergmann 2018-12-05 14:49 ` anton.ivanov 2018-12-05 14:49 ` Anton Ivanov 2018-11-30 3:28 ` mcgrof 2018-11-30 3:28 ` Luis Chamberlain 2018-12-01 2:08 ` brendanhiggins 2018-12-01 2:08 ` Brendan Higgins 2018-12-01 3:10 ` mcgrof 2018-12-01 3:10 ` Luis Chamberlain 2018-12-03 22:47 ` brendanhiggins 2018-12-03 22:47 ` Brendan Higgins 2018-12-01 3:02 ` mcgrof 2018-12-01 3:02 ` Luis Chamberlain 2018-11-28 19:36 ` [RFC v3 02/19] kunit: test: add test resource management API brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 03/19] kunit: test: add string_stream a std::stream like string builder brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-30 3:29 ` mcgrof 2018-11-30 3:29 ` Luis Chamberlain 2018-12-01 2:14 ` brendanhiggins 2018-12-01 2:14 ` Brendan Higgins 2018-12-01 3:12 ` mcgrof 2018-12-01 3:12 ` Luis Chamberlain 2018-12-03 10:55 ` pmladek 2018-12-03 10:55 ` Petr Mladek 2018-12-04 0:35 ` brendanhiggins 2018-12-04 0:35 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 04/19] kunit: test: add test_stream a std::stream like logger brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 05/19] kunit: test: add the concept of expectations brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 06/19] arch: um: enable running kunit from User Mode Linux brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-28 21:26 ` robh 2018-11-28 21:26 ` Rob Herring 2018-11-30 3:37 ` mcgrof 2018-11-30 3:37 ` Luis Chamberlain 2018-11-30 14:05 ` robh 2018-11-30 14:05 ` Rob Herring 2018-11-30 18:22 ` mcgrof 2018-11-30 18:22 ` Luis Chamberlain 2018-12-03 23:22 ` brendanhiggins 2018-12-03 23:22 ` Brendan Higgins 2018-11-30 3:30 ` mcgrof 2018-11-30 3:30 ` Luis Chamberlain 2018-11-28 19:36 ` [RFC v3 07/19] kunit: test: add initial tests brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-30 3:40 ` mcgrof 2018-11-30 3:40 ` Luis Chamberlain 2018-12-03 23:26 ` brendanhiggins 2018-12-03 23:26 ` Brendan Higgins 2018-12-03 23:43 ` mcgrof 2018-12-03 23:43 ` Luis Chamberlain 2018-11-28 19:36 ` [RFC v3 08/19] arch: um: add shim to trap to allow installing a fault catcher for tests brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-30 3:34 ` mcgrof 2018-11-30 3:34 ` Luis Chamberlain 2018-12-03 23:34 ` brendanhiggins 2018-12-03 23:34 ` Brendan Higgins 2018-12-03 23:46 ` mcgrof 2018-12-03 23:46 ` Luis Chamberlain 2018-12-04 0:44 ` brendanhiggins 2018-12-04 0:44 ` Brendan Higgins 2018-11-30 3:41 ` mcgrof 2018-11-30 3:41 ` Luis Chamberlain 2018-12-03 23:37 ` brendanhiggins 2018-12-03 23:37 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 09/19] kunit: test: add the concept of assertions brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 10/19] kunit: test: add test managed resource tests brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 11/19] kunit: add Python libraries for handing KUnit config and kernel brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-29 13:54 ` kieran.bingham 2018-11-29 13:54 ` Kieran Bingham 2018-12-03 23:48 ` brendanhiggins 2018-12-03 23:48 ` Brendan Higgins 2018-12-04 20:47 ` mcgrof 2018-12-04 20:47 ` Luis Chamberlain 2018-12-06 12:32 ` kieran.bingham 2018-12-06 12:32 ` Kieran Bingham 2018-12-06 15:37 ` willy 2018-12-06 15:37 ` Matthew Wilcox 2018-12-07 11:30 ` kieran.bingham 2018-12-07 11:30 ` Kieran Bingham 2018-12-11 14:09 ` pmladek 2018-12-11 14:09 ` Petr Mladek 2018-12-11 14:41 ` rostedt 2018-12-11 14:41 ` Steven Rostedt 2018-12-11 17:01 ` anton.ivanov 2018-12-11 17:01 ` Anton Ivanov 2019-02-09 0:40 ` brendanhiggins 2019-02-09 0:40 ` Brendan Higgins 2018-12-07 1:05 ` mcgrof 2018-12-07 1:05 ` Luis Chamberlain 2018-12-07 18:35 ` kent.overstreet 2018-12-07 18:35 ` Kent Overstreet 2018-11-30 3:44 ` mcgrof 2018-11-30 3:44 ` Luis Chamberlain 2018-12-03 23:50 ` brendanhiggins 2018-12-03 23:50 ` Brendan Higgins 2018-12-04 20:48 ` mcgrof 2018-12-04 20:48 ` Luis Chamberlain 2018-11-28 19:36 ` [RFC v3 12/19] kunit: add KUnit wrapper script and simple output parser brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 13/19] kunit: improve output from python wrapper brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 14/19] Documentation: kunit: add documentation for KUnit brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-29 13:56 ` kieran.bingham 2018-11-29 13:56 ` Kieran Bingham 2018-11-30 3:45 ` mcgrof 2018-11-30 3:45 ` Luis Chamberlain 2018-12-03 23:53 ` brendanhiggins 2018-12-03 23:53 ` Brendan Higgins 2018-12-06 12:16 ` kieran.bingham 2018-12-06 12:16 ` Kieran Bingham 2019-02-09 0:56 ` brendanhiggins 2019-02-09 0:56 ` Brendan Higgins 2019-02-11 12:16 ` kieran.bingham 2019-02-11 12:16 ` Kieran Bingham 2019-02-12 22:10 ` brendanhiggins 2019-02-12 22:10 ` Brendan Higgins 2019-02-13 21:55 ` kieran.bingham [this message] 2019-02-13 21:55 ` Kieran Bingham 2019-02-14 0:17 ` brendanhiggins 2019-02-14 0:17 ` Brendan Higgins 2019-02-14 17:26 ` mcgrof 2019-02-14 17:26 ` Luis Chamberlain 2019-02-14 22:07 ` brendanhiggins 2019-02-14 22:07 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 15/19] MAINTAINERS: add entry for KUnit the unit testing framework brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 16/19] arch: um: make UML unflatten device tree when testing brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-11-28 21:16 ` robh 2018-11-28 21:16 ` Rob Herring 2018-12-04 0:00 ` brendanhiggins 2018-12-04 0:00 ` Brendan Higgins 2018-11-30 3:46 ` mcgrof 2018-11-30 3:46 ` Luis Chamberlain 2018-12-04 0:02 ` brendanhiggins 2018-12-04 0:02 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 17/19] of: unittest: migrate tests to run on KUnit brendanhiggins 2018-11-28 19:36 ` Brendan Higgins [not found] ` <CAL_Jsq+09Kx7yMBC_Jw45QGmk6U_fp4N6HOZDwYrM4tWw+_dOA@mail.gmail.com> 2018-11-30 0:39 ` rdunlap 2018-11-30 0:39 ` Randy Dunlap 2018-12-04 0:13 ` brendanhiggins 2018-12-04 0:13 ` Brendan Higgins 2018-12-04 13:40 ` robh 2018-12-04 13:40 ` Rob Herring 2018-12-05 23:42 ` brendanhiggins 2018-12-05 23:42 ` Brendan Higgins 2018-12-07 0:41 ` robh 2018-12-07 0:41 ` Rob Herring 2018-12-04 0:08 ` brendanhiggins 2018-12-04 0:08 ` Brendan Higgins 2019-02-13 1:44 ` brendanhiggins 2019-02-13 1:44 ` Brendan Higgins 2019-02-14 20:10 ` robh 2019-02-14 20:10 ` Rob Herring 2019-02-14 21:52 ` brendanhiggins 2019-02-14 21:52 ` Brendan Higgins 2019-02-18 22:56 ` frowand.list 2019-02-18 22:56 ` Frank Rowand 2019-02-28 0:29 ` brendanhiggins 2019-02-28 0:29 ` Brendan Higgins 2018-12-04 10:56 ` frowand.list 2018-12-04 10:56 ` Frank Rowand 2018-11-28 19:36 ` [RFC v3 18/19] of: unittest: split out a couple of test cases from unittest brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-12-04 10:58 ` frowand.list 2018-12-04 10:58 ` Frank Rowand 2018-12-05 23:54 ` brendanhiggins 2018-12-05 23:54 ` Brendan Higgins 2019-02-14 23:57 ` frowand.list 2019-02-14 23:57 ` Frank Rowand 2019-02-15 0:56 ` brendanhiggins 2019-02-15 0:56 ` Brendan Higgins 2019-02-15 2:05 ` frowand.list 2019-02-15 2:05 ` Frank Rowand 2019-02-15 10:56 ` brendanhiggins 2019-02-15 10:56 ` Brendan Higgins 2019-02-18 22:25 ` frowand.list 2019-02-18 22:25 ` Frank Rowand 2019-02-20 20:44 ` frowand.list 2019-02-20 20:44 ` Frank Rowand 2019-02-20 20:47 ` frowand.list 2019-02-20 20:47 ` Frank Rowand 2019-02-28 3:52 ` brendanhiggins 2019-02-28 3:52 ` Brendan Higgins 2019-03-22 0:22 ` frowand.list 2019-03-22 0:22 ` Frank Rowand 2019-03-22 1:30 ` brendanhiggins 2019-03-22 1:30 ` Brendan Higgins 2019-03-22 1:47 ` frowand.list 2019-03-22 1:47 ` Frank Rowand 2019-03-25 22:15 ` brendanhiggins 2019-03-25 22:15 ` Brendan Higgins 2019-09-20 16:57 ` Rob Herring 2019-09-21 23:57 ` Frank Rowand 2019-03-22 1:34 ` frowand.list 2019-03-22 1:34 ` Frank Rowand 2019-03-25 22:18 ` brendanhiggins 2019-03-25 22:18 ` Brendan Higgins 2018-11-28 19:36 ` [RFC v3 19/19] of: unittest: split up some super large test cases brendanhiggins 2018-11-28 19:36 ` Brendan Higgins 2018-12-04 10:52 ` [RFC v3 00/19] kunit: introduce KUnit, the Linux kernel unit testing framework frowand.list 2018-12-04 10:52 ` Frank Rowand 2018-12-04 11:40 ` frowand.list 2018-12-04 11:40 ` Frank Rowand 2018-12-04 13:49 ` robh 2018-12-04 13:49 ` Rob Herring 2018-12-05 23:10 ` brendanhiggins 2018-12-05 23:10 ` Brendan Higgins 2019-03-22 0:27 ` frowand.list 2019-03-22 0:27 ` Frank Rowand 2019-03-25 22:04 ` brendanhiggins 2019-03-25 22:04 ` Brendan Higgins
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