[PATCH 6.1 113/481] kunit: kunit.py extract handlers

Greg Kroah-Hartman
2026-03-23T16:12:00Z

6.1-stable review patch. If anyone has any objections, please let me know.

------------------

From: Alexander Pantyukhin <apantykhin@gmail.com>

[ Upstream commit 2dc9d6ca52a47fd00822e818c2a5e48fc5fbbd53 ]

The main function contains a wide if-elif block that handles different
subcommands. It's possible to make code refactoring to extract
subcommands handlers.

Fixed commit summary line.
Shuah Khan <skhan@linuxfoundation.org>

Signed-off-by: Alexander Pantyukhin <apantykhin@gmail.com>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Stable-dep-of: 40804c4974b8 ("kunit: tool: copy caller args in run_kernel to prevent mutation")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/kunit/kunit.py | 167 ++++++++++++++++++++---------------
1 file changed, 96 insertions(+), 71 deletions(-)

diff --git a/tools/testing/kunit/kunit.py b/tools/testing/kunit/kunit.py
index 43fbe96318fe1..8cd8188675047 100755
--- a/tools/testing/kunit/kunit.py
+++ b/tools/testing/kunit/kunit.py
@@ -395,6 +395,95 @@ def tree_from_args(cli_args: argparse.Namespace) -> kunit_kernel.LinuxSourceTree
extra_qemu_args=qemu_args)

+def run_handler(cli_args):
+ if not os.path.exists(cli_args.build_dir):
+ os.mkdir(cli_args.build_dir)
+
+ linux = tree_from_args(cli_args)
+ request = KunitRequest(build_dir=cli_args.build_dir,
+ make_options=cli_args.make_options,
+ jobs=cli_args.jobs,
+ raw_output=cli_args.raw_output,
+ json=cli_args.json,
+ timeout=cli_args.timeout,
+ filter_glob=cli_args.filter_glob,
+ kernel_args=cli_args.kernel_args,
+ run_isolated=cli_args.run_isolated)
+ result = run_tests(linux, request)
+ if result.status != KunitStatus.SUCCESS:
+ sys.exit(1)
+
+
+def config_handler(cli_args):
+ if cli_args.build_dir and (
+ not os.path.exists(cli_args.build_dir)):
+ os.mkdir(cli_args.build_dir)
+
+ linux = tree_from_args(cli_args)
+ request = KunitConfigRequest(build_dir=cli_args.build_dir,
+ make_options=cli_args.make_options)
+ result = config_tests(linux, request)
+ stdout.print_with_timestamp((
+ 'Elapsed time: %.3fs\n') % (
+ result.elapsed_time))
+ if result.status != KunitStatus.SUCCESS:
+ sys.exit(1)
+
+
+def build_handler(cli_args):
+ linux = tree_from_args(cli_args)
+ request = KunitBuildRequest(build_dir=cli_args.build_dir,
+ make_options=cli_args.make_options,
+ jobs=cli_args.jobs)
+ result = config_and_build_tests(linux, request)
+ stdout.print_with_timestamp((
+ 'Elapsed time: %.3fs\n') % (
+ result.elapsed_time))
+ if result.status != KunitStatus.SUCCESS:
+ sys.exit(1)
+
+
+def exec_handler(cli_args):
+ linux = tree_from_args(cli_args)
+ exec_request = KunitExecRequest(raw_output=cli_args.raw_output,
+ build_dir=cli_args.build_dir,
+ json=cli_args.json,
+ timeout=cli_args.timeout,
+ filter_glob=cli_args.filter_glob,
+ kernel_args=cli_args.kernel_args,
+ run_isolated=cli_args.run_isolated)
+ result = exec_tests(linux, exec_request)
+ stdout.print_with_timestamp((
+ 'Elapsed time: %.3fs\n') % (result.elapsed_time))
+ if result.status != KunitStatus.SUCCESS:
+ sys.exit(1)
+
+
+def parse_handler(cli_args):
+ if cli_args.file is None:
+ sys.stdin.reconfigure(errors='backslashreplace') # pytype: disable=attribute-error
+ kunit_output = sys.stdin
+ else:
+ with open(cli_args.file, 'r', errors='backslashreplace') as f:
+ kunit_output = f.read().splitlines()
+ # We know nothing about how the result was created!
+ metadata = kunit_json.Metadata()
+ request = KunitParseRequest(raw_output=cli_args.raw_output,
+ json=cli_args.json)
+ result, _ = parse_tests(request, metadata, kunit_output)
+ if result.status != KunitStatus.SUCCESS:
+ sys.exit(1)
+
+
+subcommand_handlers_map = {
+ 'run': run_handler,
+ 'config': config_handler,
+ 'build': build_handler,
+ 'exec': exec_handler,
+ 'parse': parse_handler
+}
+
+
def main(argv):
parser = argparse.ArgumentParser(
description='Helps writing and running KUnit tests.')
@@ -438,78 +527,14 @@ def main(argv):
if get_kernel_root_path():
os.chdir(get_kernel_root_path())

- if cli_args.subcommand == 'run':
- if not os.path.exists(cli_args.build_dir):
- os.mkdir(cli_args.build_dir)
-
- linux = tree_from_args(cli_args)
- request = KunitRequest(build_dir=cli_args.build_dir,
- make_options=cli_args.make_options,
- jobs=cli_args.jobs,
- raw_output=cli_args.raw_output,
- json=cli_args.json,
- timeout=cli_args.timeout,
- filter_glob=cli_args.filter_glob,
- kernel_args=cli_args.kernel_args,
- run_isolated=cli_args.run_isolated)
- result = run_tests(linux, request)
- if result.status != KunitStatus.SUCCESS:
- sys.exit(1)
- elif cli_args.subcommand == 'config':
- if cli_args.build_dir and (
- not os.path.exists(cli_args.build_dir)):
- os.mkdir(cli_args.build_dir)
-
- linux = tree_from_args(cli_args)
- request = KunitConfigRequest(build_dir=cli_args.build_dir,
- make_options=cli_args.make_options)
- result = config_tests(linux, request)
- stdout.print_with_timestamp((
- 'Elapsed time: %.3fs\n') % (
- result.elapsed_time))
- if result.status != KunitStatus.SUCCESS:
- sys.exit(1)
- elif cli_args.subcommand == 'build':
- linux = tree_from_args(cli_args)
- request = KunitBuildRequest(build_dir=cli_args.build_dir,
- make_options=cli_args.make_options,
- jobs=cli_args.jobs)
- result = config_and_build_tests(linux, request)
- stdout.print_with_timestamp((
- 'Elapsed time: %.3fs\n') % (
- result.elapsed_time))
- if result.status != KunitStatus.SUCCESS:
- sys.exit(1)
- elif cli_args.subcommand == 'exec':
- linux = tree_from_args(cli_args)
- exec_request = KunitExecRequest(raw_output=cli_args.raw_output,
- build_dir=cli_args.build_dir,
- json=cli_args.json,
- timeout=cli_args.timeout,
- filter_glob=cli_args.filter_glob,
- kernel_args=cli_args.kernel_args,
- run_isolated=cli_args.run_isolated)
- result = exec_tests(linux, exec_request)
- stdout.print_with_timestamp((
- 'Elapsed time: %.3fs\n') % (result.elapsed_time))
- if result.status != KunitStatus.SUCCESS:
- sys.exit(1)
- elif cli_args.subcommand == 'parse':
- if cli_args.file is None:
- sys.stdin.reconfigure(errors='backslashreplace') # pytype: disable=attribute-error
- kunit_output = sys.stdin
- else:
- with open(cli_args.file, 'r', errors='backslashreplace') as f:
- kunit_output = f.read().splitlines()
- # We know nothing about how the result was created!
- metadata = kunit_json.Metadata()
- request = KunitParseRequest(raw_output=cli_args.raw_output,
- json=cli_args.json)
- result, _ = parse_tests(request, metadata, kunit_output)
- if result.status != KunitStatus.SUCCESS:
- sys.exit(1)
- else:
+ subcomand_handler = subcommand_handlers_map.get(cli_args.subcommand, None)
+
+ if subcomand_handler is None:
parser.print_help()
+ return
+
+ subcomand_handler(cli_args)
+

if __name__ == '__main__':
main(sys.argv[1:])
--
2.51.0