Re: [RFC PATCH] tests: be a bit more strict cleaning up fifos

["Alex Bennée" <alex.bennee@linaro.org>]

Philippe Mathieu-Daudé <philmd@linaro.org> writes:

> On 6/2/23 15:10, Alex Bennée wrote:
>> When we re-factored we dropped the unlink() step which turns out to be
>> required for rmdir to do its thing. If we had been checking the return
>> value we would have noticed so lets do that with this fix.
>> Fixes: 68406d1085 (tests/unit: cleanups for test-io-channel-command)
>> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
>> Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
>> ---
>>   tests/unit/test-io-channel-command.c | 6 +++++-
>>   1 file changed, 5 insertions(+), 1 deletion(-)
>> diff --git a/tests/unit/test-io-channel-command.c
>> b/tests/unit/test-io-channel-command.c
>> index 425e2f5594..c2179a6462 100644
>> --- a/tests/unit/test-io-channel-command.c
>> +++ b/tests/unit/test-io-channel-command.c
>> @@ -42,6 +42,7 @@ static void test_io_channel_command_fifo(bool async)
>>       g_auto(GStrv) dstargv = g_strsplit(dstargs, " ", -1);
>>       QIOChannel *src, *dst;
>>       QIOChannelTest *test;
>> +    int err;
>>         if (mkfifo(fifo, 0600)) {
>>           g_error("mkfifo: %s", strerror(errno));
>> @@ -61,7 +62,10 @@ static void test_io_channel_command_fifo(bool async)
>>       object_unref(OBJECT(src));
>>       object_unref(OBJECT(dst));
>>   -    g_rmdir(tmpdir);
>> +    err = g_unlink(fifo);
>> +    g_assert(err == 0);
>> +    err = g_rmdir(tmpdir);
>> +    g_assert(err == 0);
>>   }
>
> Thanks for the patch, but unfortunately this doesn't help:
>
> Unknown TAP version. The first line MUST be `TAP version <int>`.
> Assuming version 12.
>
> 71/93 qemu:unit / test-io-channel-command             ERROR 1.06s
> killed by signal 13 SIGPIPE
>>>> G_TEST_BUILDDIR=/Users/philmd/source/qemu/build/tests/unit
>     G_TEST_SRCDIR=/Users/philmd/source/qemu/tests/unit
>     MALLOC_PERTURB_=27
>     /Users/philmd/source/qemu/build/tests/unit/test-io-channel-command
>    --tap -k
> ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
> ✀
> ――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
> stderr:
> 2023/02/06 15:46:03 socat[88615] E read(5, 0x13480c000, 8192): Bad
> file descriptor
>
> (test program exited with status code -13)
>
> TAP parsing error: Too few tests run (expected 4, got 0)

Ahh that is a different error.

>
> $ tests/unit/test-io-channel-command
> # random seed: R02Se92d5500c30bbf1797b1047cd480607c
> 1..4
> # Start of io tests
> # Start of channel tests
> # Start of command tests
> # Start of fifo tests
> 2023/02/06 15:47:31 socat[88651] E read(5, 0x12000c000, 8192): Bad
> file descriptor
> $ echo $?
> 141
>
> Should we add 'socat' as testing dependency in lci-tool?

Yes, and maybe this is triggering on FreeBSD as well?

  https://cdn.artifacts.gitlab-static.net/7e/5d/7e5de39c75978325e6b9b68dd0f992f487a1c862c6dff2cc867723e4c306e820/2023_02_05/3717196650/4070740647/job.log?response-content-type=text%2Fplain%3B%20charset%3Dutf-8&response-content-disposition=inline&Expires=1675696399&KeyName=gprd-artifacts-cdn&Signature=B4AVL9qee1_jd8hmwvEkyVepy38=

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro