On Thu, Jun 26, 2025 at 2:10 AM Thomas Weißschuh
<thomas.weissschuh@linutronix.de> wrote:
>
> Skipped tests reported by kselftest.h use a different format than KTAP,
> there is no explicit test name. Normally the test name is part of the
> free-form string after the SKIP keyword:
>
> ok 3 # SKIP test: some reason
>
> Extend the parser to handle those correctly. Use the free-form string as
> test name instead.
Hello!
I am happy to see that the kunit_parser will be used to parse
kselftest.h patches!
This patch looks pretty good to me! However, I do have one concern
where it does cause the parser to break.
Thanks!
-Rae
>
> Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
> Reviewed-by: David Gow <davidgow@google.com>
> ---
> tools/testing/kunit/kunit_parser.py | 8 +++++---
> tools/testing/kunit/test_data/test_is_test_passed-kselftest.log | 3 ++-
> 2 files changed, 7 insertions(+), 4 deletions(-)
>
> diff --git a/tools/testing/kunit/kunit_parser.py b/tools/testing/kunit/kunit_parser.py
> index 2478beb28fc3db825855ad46200340e884da7df1..4599d23c79b79f0e219d655c7053c8c3b34f8152 100644
> --- a/tools/testing/kunit/kunit_parser.py
> +++ b/tools/testing/kunit/kunit_parser.py
> @@ -352,9 +352,9 @@ def parse_test_plan(lines: LineStream, test: Test) -> bool:
> lines.pop()
> return True
>
> -TEST_RESULT = re.compile(r'^\s*(ok|not ok) ([0-9]+) (- )?([^#]*)( # .*)?$')
> +TEST_RESULT = re.compile(r'^\s*(ok|not ok) ([0-9]+)? ?(- )?([^#]*)( # .*)?$')
>
> -TEST_RESULT_SKIP = re.compile(r'^\s*(ok|not ok) ([0-9]+) (- )?(.*) # SKIP(.*)$')
> +TEST_RESULT_SKIP = re.compile(r'^\s*(ok|not ok) ([0-9]+)? ?(- )?(.*) # SKIP ?(.*)$')
My concern with this patch is that this makes the test number optional
([0-9]+) -> ([0-9]+)? for both the test result regex matches. But if I
do pass in KTAP containing a line where the test number is missing, it
causes the parser to crash because other lines of the code rely on the
match with the test number.
I would prefer if we keep the test number as required. This is
integral to the KTAP specification and seems to be largely shared by
different frameworks test output.
>
> def peek_test_name_match(lines: LineStream, test: Test) -> bool:
> """
> @@ -379,6 +379,8 @@ def peek_test_name_match(lines: LineStream, test: Test) -> bool:
> if not match:
> return False
> name = match.group(4)
> + if not name:
> + return False
> return name == test.name
>
> def parse_test_result(lines: LineStream, test: Test,
> @@ -416,7 +418,7 @@ def parse_test_result(lines: LineStream, test: Test,
>
> # Set name of test object
> if skip_match:
> - test.name = skip_match.group(4)
> + test.name = skip_match.group(4) or skip_match.group(5)
> else:
> test.name = match.group(4)
>
> diff --git a/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log b/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log
> index 65d3f27feaf22a3f47ed831c4c24f6f11c625a92..30d9ef18bcec177067288d5242771236f29b7d56 100644
> --- a/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log
> +++ b/tools/testing/kunit/test_data/test_is_test_passed-kselftest.log
> @@ -1,5 +1,5 @@
> TAP version 13
> -1..2
> +1..3
> # selftests: membarrier: membarrier_test_single_thread
> # TAP version 13
> # 1..2
> @@ -12,3 +12,4 @@ ok 1 selftests: membarrier: membarrier_test_single_thread
> # ok 1 sys_membarrier available
> # ok 2 sys membarrier invalid command test: command = -1, flags = 0, errno = 22. Failed as expected
> ok 2 selftests: membarrier: membarrier_test_multi_thread
> +ok 3 # SKIP selftests: membarrier: membarrier_test_multi_thread
>
> --
> 2.50.0
>