2 # SPDX-License-Identifier: GPL-2.0
4 # A thin wrapper on top of the KUnit Kernel
6 # Copyright (C) 2019, Google LLC.
7 # Author: Felix Guo <felixguoxiuping@gmail.com>
8 # Author: Brendan Higgins <brendanhiggins@google.com>
16 from collections import namedtuple
17 from enum import Enum, auto
23 KunitResult = namedtuple('KunitResult', ['status','result'])
25 KunitRequest = namedtuple('KunitRequest', ['raw_output','timeout', 'jobs', 'build_dir', 'defconfig'])
27 class KunitStatus(Enum):
29 CONFIG_FAILURE = auto()
30 BUILD_FAILURE = auto()
33 def create_default_kunitconfig():
34 if not os.path.exists(kunit_kernel.kunitconfig_path):
35 shutil.copyfile('arch/um/configs/kunit_defconfig',
36 kunit_kernel.kunitconfig_path)
38 def run_tests(linux: kunit_kernel.LinuxSourceTree,
39 request: KunitRequest) -> KunitResult:
40 config_start = time.time()
41 success = linux.build_reconfig(request.build_dir)
42 config_end = time.time()
44 return KunitResult(KunitStatus.CONFIG_FAILURE, 'could not configure kernel')
46 kunit_parser.print_with_timestamp('Building KUnit Kernel ...')
48 build_start = time.time()
49 success = linux.build_um_kernel(request.jobs, request.build_dir)
50 build_end = time.time()
52 return KunitResult(KunitStatus.BUILD_FAILURE, 'could not build kernel')
54 kunit_parser.print_with_timestamp('Starting KUnit Kernel ...')
55 test_start = time.time()
57 test_result = kunit_parser.TestResult(kunit_parser.TestStatus.SUCCESS,
60 if request.raw_output:
61 kunit_parser.raw_output(
62 linux.run_kernel(timeout=request.timeout,
63 build_dir=request.build_dir))
65 kunit_output = linux.run_kernel(timeout=request.timeout,
66 build_dir=request.build_dir)
67 test_result = kunit_parser.parse_run_tests(kunit_output)
68 test_end = time.time()
70 kunit_parser.print_with_timestamp((
71 'Elapsed time: %.3fs total, %.3fs configuring, %.3fs ' +
72 'building, %.3fs running\n') % (
73 test_end - config_start,
74 config_end - config_start,
75 build_end - build_start,
76 test_end - test_start))
78 if test_result.status != kunit_parser.TestStatus.SUCCESS:
79 return KunitResult(KunitStatus.TEST_FAILURE, test_result)
81 return KunitResult(KunitStatus.SUCCESS, test_result)
83 def main(argv, linux=None):
84 parser = argparse.ArgumentParser(
85 description='Helps writing and running KUnit tests.')
86 subparser = parser.add_subparsers(dest='subcommand')
88 run_parser = subparser.add_parser('run', help='Runs KUnit tests.')
89 run_parser.add_argument('--raw_output', help='don\'t format output from kernel',
92 run_parser.add_argument('--timeout',
93 help='maximum number of seconds to allow for all tests '
94 'to run. This does not include time taken to build the '
100 run_parser.add_argument('--jobs',
101 help='As in the make command, "Specifies the number of '
102 'jobs (commands) to run simultaneously."',
103 type=int, default=8, metavar='jobs')
105 run_parser.add_argument('--build_dir',
106 help='As in the make command, it specifies the build '
108 type=str, default='', metavar='build_dir')
110 run_parser.add_argument('--defconfig',
111 help='Uses a default .kunitconfig.',
114 cli_args = parser.parse_args(argv)
116 if cli_args.subcommand == 'run':
117 if cli_args.build_dir:
118 if not os.path.exists(cli_args.build_dir):
119 os.mkdir(cli_args.build_dir)
120 kunit_kernel.kunitconfig_path = os.path.join(
122 kunit_kernel.kunitconfig_path)
124 if cli_args.defconfig:
125 create_default_kunitconfig()
128 linux = kunit_kernel.LinuxSourceTree()
130 request = KunitRequest(cli_args.raw_output,
135 result = run_tests(linux, request)
136 if result.status != KunitStatus.SUCCESS:
141 if __name__ == '__main__':