summaryrefslogtreecommitdiffstats
path: root/tools/testing/kunit/kunit.py
blob: 425ef40067e7e2fbf648631279af0bdb4cf599a6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
#!/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','elapsed_time'])

KunitConfigRequest = namedtuple('KunitConfigRequest',
				['build_dir', 'make_options'])
KunitBuildRequest = namedtuple('KunitBuildRequest',
			       ['jobs', 'build_dir', 'alltests',
				'make_options'])
KunitExecRequest = namedtuple('KunitExecRequest',
			      ['timeout', 'build_dir', 'alltests'])
KunitParseRequest = namedtuple('KunitParseRequest',
			       ['raw_output', 'input_data'])
KunitRequest = namedtuple('KunitRequest', ['raw_output','timeout', 'jobs',
					   'build_dir', '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 config_tests(linux: kunit_kernel.LinuxSourceTree,
		 request: KunitConfigRequest) -> KunitResult:
	kunit_parser.print_with_timestamp('Configuring KUnit Kernel ...')

	config_start = time.time()
	create_default_kunitconfig()
	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',
				   config_end - config_start)
	return KunitResult(KunitStatus.SUCCESS,
			   'configured kernel successfully',
			   config_end - config_start)

def build_tests(linux: kunit_kernel.LinuxSourceTree,
		request: KunitBuildRequest) -> KunitResult:
	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',
				   build_end - build_start)
	if not success:
		return KunitResult(KunitStatus.BUILD_FAILURE,
				   'could not build kernel',
				   build_end - build_start)
	return KunitResult(KunitStatus.SUCCESS,
			   'built kernel successfully',
			   build_end - build_start)

def exec_tests(linux: kunit_kernel.LinuxSourceTree,
	       request: KunitExecRequest) -> KunitResult:
	kunit_parser.print_with_timestamp('Starting KUnit Kernel ...')
	test_start = time.time()
	result = linux.run_kernel(
		timeout=None if request.alltests else request.timeout,
		build_dir=request.build_dir)

	test_end = time.time()

	return KunitResult(KunitStatus.SUCCESS,
			   result,
			   test_end - test_start)

def parse_tests(request: KunitParseRequest) -> KunitResult:
	parse_start = time.time()

	test_result = kunit_parser.TestResult(kunit_parser.TestStatus.SUCCESS,
					      [],
					      'Tests not Parsed.')
	if request.raw_output:
		kunit_parser.raw_output(request.input_data)
	else:
		test_result = kunit_parser.parse_run_tests(request.input_data)
	parse_end = time.time()

	if test_result.status != kunit_parser.TestStatus.SUCCESS:
		return KunitResult(KunitStatus.TEST_FAILURE, test_result,
				   parse_end - parse_start)

	return KunitResult(KunitStatus.SUCCESS, test_result,
				parse_end - parse_start)


def run_tests(linux: kunit_kernel.LinuxSourceTree,
	      request: KunitRequest) -> KunitResult:
	run_start = time.time()

	config_request = KunitConfigRequest(request.build_dir,
					    request.make_options)
	config_result = config_tests(linux, config_request)
	if config_result.status != KunitStatus.SUCCESS:
		return config_result

	build_request = KunitBuildRequest(request.jobs, request.build_dir,
					  request.alltests,
					  request.make_options)
	build_result = build_tests(linux, build_request)
	if build_result.status != KunitStatus.SUCCESS:
		return build_result

	exec_request = KunitExecRequest(request.timeout, request.build_dir,
					request.alltests)
	exec_result = exec_tests(linux, exec_request)
	if exec_result.status != KunitStatus.SUCCESS:
		return exec_result

	parse_request = KunitParseRequest(request.raw_output,
					  exec_result.result)
	parse_result = parse_tests(parse_request)

	run_end = time.time()

	kunit_parser.print_with_timestamp((
		'Elapsed time: %.3fs total, %.3fs configuring, %.3fs ' +
		'building, %.3fs running\n') % (
				run_end - run_start,
				config_result.elapsed_time,
				build_result.elapsed_time,
				exec_result.elapsed_time))
	return parse_result

def add_common_opts(parser):
	parser.add_argument('--build_dir',
			    help='As in the make command, it specifies the build '
			    'directory.',
                            type=str, default='.kunit', metavar='build_dir')
	parser.add_argument('--make_options',
			    help='X=Y make option, can be repeated.',
			    action='append')
	parser.add_argument('--alltests',
			    help='Run all KUnit tests through allyesconfig',
			    action='store_true')

def add_build_opts(parser):
	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')

def add_exec_opts(parser):
	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')

def add_parse_opts(parser):
	parser.add_argument('--raw_output', help='don\'t format output from kernel',
			    action='store_true')


def main(argv, linux=None):
	parser = argparse.ArgumentParser(
			description='Helps writing and running KUnit tests.')
	subparser = parser.add_subparsers(dest='subcommand')

	# The 'run' command will config, build, exec, and parse in one go.
	run_parser = subparser.add_parser('run', help='Runs KUnit tests.')
	add_common_opts(run_parser)
	add_build_opts(run_parser)
	add_exec_opts(run_parser)
	add_parse_opts(run_parser)

	config_parser = subparser.add_parser('config',
						help='Ensures that .config contains all of '
						'the options in .kunitconfig')
	add_common_opts(config_parser)

	build_parser = subparser.add_parser('build', help='Builds a kernel with KUnit tests')
	add_common_opts(build_parser)
	add_build_opts(build_parser)

	exec_parser = subparser.add_parser('exec', help='Run a kernel with KUnit tests')
	add_common_opts(exec_parser)
	add_exec_opts(exec_parser)
	add_parse_opts(exec_parser)

	# The 'parse' option is special, as it doesn't need the kernel source
	# (therefore there is no need for a build_dir, hence no add_common_opts)
	# and the '--file' argument is not relevant to 'run', so isn't in
	# add_parse_opts()
	parse_parser = subparser.add_parser('parse',
					    help='Parses KUnit results from a file, '
					    'and parses formatted results.')
	add_parse_opts(parse_parser)
	parse_parser.add_argument('file',
				  help='Specifies the file to read results from.',
				  type=str, nargs='?', metavar='input_file')

	cli_args = parser.parse_args(argv)

	if cli_args.subcommand == 'run':
		if not os.path.exists(cli_args.build_dir):
			os.mkdir(cli_args.build_dir)

		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.alltests,
				       cli_args.make_options)
		result = run_tests(linux, request)
		if result.status != KunitStatus.SUCCESS:
			sys.exit(1)
	elif cli_args.subcommand == 'config':
		if cli_args.build_dir:
			if not os.path.exists(cli_args.build_dir):
				os.mkdir(cli_args.build_dir)

		if not linux:
			linux = kunit_kernel.LinuxSourceTree()

		request = KunitConfigRequest(cli_args.build_dir,
					     cli_args.make_options)
		result = config_tests(linux, request)
		kunit_parser.print_with_timestamp((
			'Elapsed time: %.3fs\n') % (
				result.elapsed_time))
		if result.status != KunitStatus.SUCCESS:
			sys.exit(1)
	elif cli_args.subcommand == 'build':
		if cli_args.build_dir:
			if not os.path.exists(cli_args.build_dir):
				os.mkdir(cli_args.build_dir)

		if not linux:
			linux = kunit_kernel.LinuxSourceTree()

		request = KunitBuildRequest(cli_args.jobs,
					    cli_args.build_dir,
					    cli_args.alltests,
					    cli_args.make_options)
		result = build_tests(linux, request)
		kunit_parser.print_with_timestamp((
			'Elapsed time: %.3fs\n') % (
				result.elapsed_time))
		if result.status != KunitStatus.SUCCESS:
			sys.exit(1)
	elif cli_args.subcommand == 'exec':
		if cli_args.build_dir:
			if not os.path.exists(cli_args.build_dir):
				os.mkdir(cli_args.build_dir)

		if not linux:
			linux = kunit_kernel.LinuxSourceTree()

		exec_request = KunitExecRequest(cli_args.timeout,
						cli_args.build_dir,
						cli_args.alltests)
		exec_result = exec_tests(linux, exec_request)
		parse_request = KunitParseRequest(cli_args.raw_output,
						  exec_result.result)
		result = parse_tests(parse_request)
		kunit_parser.print_with_timestamp((
			'Elapsed time: %.3fs\n') % (
				exec_result.elapsed_time))
		if result.status != KunitStatus.SUCCESS:
			sys.exit(1)
	elif cli_args.subcommand == 'parse':
		if cli_args.file == None:
			kunit_output = sys.stdin
		else:
			with open(cli_args.file, 'r') as f:
				kunit_output = f.read().splitlines()
		request = KunitParseRequest(cli_args.raw_output,
					    kunit_output)
		result = parse_tests(request)
		if result.status != KunitStatus.SUCCESS:
			sys.exit(1)
	else:
		parser.print_help()

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