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#!/usr/bin/python3
# SPDX-License-Identifier: GPL-2.0
#
# A thin wrapper on top of the KUnit Kernel
#
# Copyright (C) 2019, Google LLC.
# Author: Felix Guo <felixguoxiuping@gmail.com>
# Author: Brendan Higgins <brendanhiggins@google.com>
import argparse
import sys
import os
import time
import shutil
from collections import namedtuple
from enum import Enum, auto
import kunit_config
import kunit_kernel
import kunit_parser
KunitResult = namedtuple('KunitResult', ['status','result'])
KunitRequest = namedtuple('KunitRequest', ['raw_output','timeout', 'jobs',
'build_dir', 'defconfig',
'alltests', 'make_options'])
KernelDirectoryPath = sys.argv[0].split('tools/testing/kunit/')[0]
class KunitStatus(Enum):
SUCCESS = auto()
CONFIG_FAILURE = auto()
BUILD_FAILURE = auto()
TEST_FAILURE = auto()
def create_default_kunitconfig():
if not os.path.exists(kunit_kernel.kunitconfig_path):
shutil.copyfile('arch/um/configs/kunit_defconfig',
kunit_kernel.kunitconfig_path)
def get_kernel_root_path():
parts = sys.argv[0] if not __file__ else __file__
parts = os.path.realpath(parts).split('tools/testing/kunit')
if len(parts) != 2:
sys.exit(1)
return parts[0]
def run_tests(linux: kunit_kernel.LinuxSourceTree,
request: KunitRequest) -> KunitResult:
config_start = time.time()
success = linux.build_reconfig(request.build_dir, request.make_options)
config_end = time.time()
if not success:
return KunitResult(KunitStatus.CONFIG_FAILURE, 'could not configure kernel')
kunit_parser.print_with_timestamp('Building KUnit Kernel ...')
build_start = time.time()
success = linux.build_um_kernel(request.alltests,
request.jobs,
request.build_dir,
request.make_options)
build_end = time.time()
if not success:
return KunitResult(KunitStatus.BUILD_FAILURE, 'could not build kernel')
kunit_parser.print_with_timestamp('Starting KUnit Kernel ...')
test_start = time.time()
kunit_output = linux.run_kernel(
timeout=None if request.alltests else request.timeout,
build_dir=request.build_dir)
if request.raw_output:
raw_output = kunit_parser.raw_output(kunit_output)
isolated = list(kunit_parser.isolate_kunit_output(raw_output))
test_result = kunit_parser.parse_test_result(isolated)
else:
test_result = kunit_parser.parse_run_tests(kunit_output)
test_end = time.time()
kunit_parser.print_with_timestamp((
'Elapsed time: %.3fs total, %.3fs configuring, %.3fs ' +
'building, %.3fs running\n') % (
test_end - config_start,
config_end - config_start,
build_end - build_start,
test_end - test_start))
if test_result.status != kunit_parser.TestStatus.SUCCESS:
return KunitResult(KunitStatus.TEST_FAILURE, test_result)
else:
return KunitResult(KunitStatus.SUCCESS, test_result)
def main(argv, linux=None):
parser = argparse.ArgumentParser(
description='Helps writing and running KUnit tests.')
subparser = parser.add_subparsers(dest='subcommand')
run_parser = subparser.add_parser('run', help='Runs KUnit tests.')
run_parser.add_argument('--raw_output', help='don\'t format output from kernel',
action='store_true')
run_parser.add_argument('--timeout',
help='maximum number of seconds to allow for all tests '
'to run. This does not include time taken to build the '
'tests.',
type=int,
default=300,
metavar='timeout')
run_parser.add_argument('--jobs',
help='As in the make command, "Specifies the number of '
'jobs (commands) to run simultaneously."',
type=int, default=8, metavar='jobs')
run_parser.add_argument('--build_dir',
help='As in the make command, it specifies the build '
'directory.',
type=str, default='', metavar='build_dir')
run_parser.add_argument('--defconfig',
help='Uses a default .kunitconfig.',
action='store_true')
run_parser.add_argument('--alltests',
help='Run all KUnit tests through allyesconfig',
action='store_true')
run_parser.add_argument('--make_options',
help='X=Y make option, can be repeated.',
action='append')
cli_args = parser.parse_args(argv)
if cli_args.subcommand == 'run':
if get_kernel_root_path():
os.chdir(get_kernel_root_path())
if cli_args.build_dir:
if not os.path.exists(cli_args.build_dir):
os.mkdir(cli_args.build_dir)
kunit_kernel.kunitconfig_path = os.path.join(
cli_args.build_dir,
kunit_kernel.kunitconfig_path)
if cli_args.defconfig:
create_default_kunitconfig()
if not linux:
linux = kunit_kernel.LinuxSourceTree()
request = KunitRequest(cli_args.raw_output,
cli_args.timeout,
cli_args.jobs,
cli_args.build_dir,
cli_args.defconfig,
cli_args.alltests,
cli_args.make_options)
result = run_tests(linux, request)
if result.status != KunitStatus.SUCCESS:
sys.exit(1)
else:
parser.print_help()
if __name__ == '__main__':
main(sys.argv[1:])
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