Merge tag 'linux-kselftest-kunit-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull Kunit updates from Shuah Khan:
"This consists of:

- Several config fragment fixes from Anders Roxell to improve test
coverage.

- Improvements to kunit run script to use defconfig as default and
restructure the code for config/build/exec/parse from Vitor Massaru
Iha and David Gow.

- Miscellaneous documentation warn fix"

* tag 'linux-kselftest-kunit-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
security: apparmor: default KUNIT_* fragments to KUNIT_ALL_TESTS
fs: ext4: default KUNIT_* fragments to KUNIT_ALL_TESTS
drivers: base: default KUNIT_* fragments to KUNIT_ALL_TESTS
lib: Kconfig.debug: default KUNIT_* fragments to KUNIT_ALL_TESTS
kunit: default KUNIT_* fragments to KUNIT_ALL_TESTS
kunit: Kconfig: enable a KUNIT_ALL_TESTS fragment
kunit: Fix TabError, remove defconfig code and handle when there is no kunitconfig
kunit: use KUnit defconfig by default
kunit: use --build_dir=.kunit as default
Documentation: test.h - fix warnings
kunit: kunit_tool: Separate out config/build/exec/parse

Documentation/dev-tools/kunit/start.rst

···
 options required by the tests.
 
 A good starting point for a ``.kunitconfig`` is the KUnit defconfig:
+
 .. code-block:: bash
 
 	cd $PATH_TO_LINUX_REPO
 	cp arch/um/configs/kunit_defconfig .kunitconfig
 
 You can then add any other Kconfig options you wish, e.g.:
+
 .. code-block:: none
 
-        CONFIG_LIST_KUNIT_TEST=y
+	CONFIG_LIST_KUNIT_TEST=y
 
 :doc:`kunit_tool <kunit-tool>` will ensure that all config options set in
 ``.kunitconfig`` are set in the kernel ``.config`` before running the tests.
···
    other tools (such as make menuconfig) to adjust other config options.
 
 
-Running the tests
------------------
+Running the tests (KUnit Wrapper)
+---------------------------------
 
 To make sure that everything is set up correctly, simply invoke the Python
 wrapper from your kernel repo:
···
 KUnit and KUnit tests can be compiled as modules: in this case the tests in a
 module will be run when the module is loaded.
 
-Running the tests
------------------
+
+Running the tests (w/o KUnit Wrapper)
+-------------------------------------
 
 Build and run your kernel as usual. Test output will be written to the kernel
 log in `TAP <https://testanything.org/>`_ format.

Documentation/dev-tools/kunit/usage.rst

···
 KUnit debugfs representation
 ============================
 When kunit test suites are initialized, they create an associated directory
-in /sys/kernel/debug/kunit/<test-suite>.  The directory contains one file
+in ``/sys/kernel/debug/kunit/<test-suite>``.  The directory contains one file
 
 - results: "cat results" displays results of each test case and the results
   of the entire suite for the last test run.
···
 run in a native environment, either as modules or builtin.  Having a way
 to display results like this is valuable as otherwise results can be
 intermixed with other events in dmesg output.  The maximum size of each
-results file is KUNIT_LOG_SIZE bytes (defined in include/kunit/test.h).
+results file is KUNIT_LOG_SIZE bytes (defined in ``include/kunit/test.h``).

drivers/base/Kconfig

···
 	  test this functionality.
 
 config PM_QOS_KUNIT_TEST
-	bool "KUnit Test for PM QoS features"
+	bool "KUnit Test for PM QoS features" if !KUNIT_ALL_TESTS
 	depends on KUNIT=y
+	default KUNIT_ALL_TESTS
 
 config HMEM_REPORTING
 	bool

drivers/base/test/Kconfig

···
 
 	  If unsure say N.
 config KUNIT_DRIVER_PE_TEST
-	bool "KUnit Tests for property entry API"
+	bool "KUnit Tests for property entry API" if !KUNIT_ALL_TESTS
 	depends on KUNIT=y
+	default KUNIT_ALL_TESTS

fs/ext4/Kconfig

···
 	  using dynamic debug control for mb_debug() / ext_debug() msgs.
 
 config EXT4_KUNIT_TESTS
-	tristate "KUnit tests for ext4"
+	tristate "KUnit tests for ext4" if !KUNIT_ALL_TESTS
 	select EXT4_FS
 	depends on KUNIT
+	default KUNIT_ALL_TESTS
 	help
 	  This builds the ext4 KUnit tests.
 

include/kunit/test.h

···
 	void (*exit)(struct kunit *test);
 	struct kunit_case *test_cases;
 
-	/* private - internal use only */
+	/* private: internal use only */
 	struct dentry *debugfs;
 	char *log;
 };
···
  * kunit_test_suites() - used to register one or more &struct kunit_suite
  *			 with KUnit.
  *
- * @suites: a statically allocated list of &struct kunit_suite.
+ * @suites_list...: a statically allocated list of &struct kunit_suite.
  *
- * Registers @suites with the test framework. See &struct kunit_suite for
+ * Registers @suites_list with the test framework. See &struct kunit_suite for
  * more information.
  *
- * When builtin,  KUnit tests are all run as late_initcalls; this means
+ * When builtin, KUnit tests are all run as late_initcalls; this means
  * that they cannot test anything where tests must run at a different init
  * phase. One significant restriction resulting from this is that KUnit
  * cannot reliably test anything that is initialize in the late_init phase;
···
  * tests from the same place, and at the very least to do so after
  * everything else is definitely initialized.
  */
-#define kunit_test_suites(...)						\
-	static struct kunit_suite *suites[] = { __VA_ARGS__, NULL};	\
+#define kunit_test_suites(suites_list...)				\
+	static struct kunit_suite *suites[] = {suites_list, NULL};	\
 	static int kunit_test_suites_init(void)				\
 	{								\
 		return __kunit_test_suites_init(suites);		\

lib/Kconfig.debug

···
 	  If unsure, say N.
 
 config SYSCTL_KUNIT_TEST
-	tristate "KUnit test for sysctl"
+	tristate "KUnit test for sysctl" if !KUNIT_ALL_TESTS
 	depends on KUNIT
+	default KUNIT_ALL_TESTS
 	help
 	  This builds the proc sysctl unit test, which runs on boot.
 	  Tests the API contract and implementation correctness of sysctl.
···
 	  If unsure, say N.
 
 config LIST_KUNIT_TEST
-	tristate "KUnit Test for Kernel Linked-list structures"
+	tristate "KUnit Test for Kernel Linked-list structures" if !KUNIT_ALL_TESTS
 	depends on KUNIT
+	default KUNIT_ALL_TESTS
 	help
 	  This builds the linked list KUnit test suite.
 	  It tests that the API and basic functionality of the list_head type

lib/kunit/Kconfig

···
 if KUNIT
 
 config KUNIT_DEBUGFS
-	bool "KUnit - Enable /sys/kernel/debug/kunit debugfs representation"
+	bool "KUnit - Enable /sys/kernel/debug/kunit debugfs representation" if !KUNIT_ALL_TESTS
+	default KUNIT_ALL_TESTS
 	help
 	  Enable debugfs representation for kunit.  Currently this consists
 	  of /sys/kernel/debug/kunit/<test_suite>/results files for each
···
 	  run that occurred.
 
 config KUNIT_TEST
-	tristate "KUnit test for KUnit"
+	tristate "KUnit test for KUnit" if !KUNIT_ALL_TESTS
+	default KUNIT_ALL_TESTS
 	help
 	  Enables the unit tests for the KUnit test framework. These tests test
 	  the KUnit test framework itself; the tests are both written using
···
 	  expected.
 
 config KUNIT_EXAMPLE_TEST
-	tristate "Example test for KUnit"
+	tristate "Example test for KUnit" if !KUNIT_ALL_TESTS
+	default KUNIT_ALL_TESTS
 	help
 	  Enables an example unit test that illustrates some of the basic
 	  features of KUnit. This test only exists to help new users understand
···
 	  itself, lib/kunit/example-test.c, for more information. This option
 	  is intended for curious hackers who would like to understand how to
 	  use KUnit for kernel development.
+
+config KUNIT_ALL_TESTS
+	tristate "All KUnit tests with satisfied dependencies"
+	help
+	  Enables all KUnit tests, if they can be enabled.
+	  KUnit tests run during boot and output the results to the debug log
+	  in TAP format (http://testanything.org/). Only useful for kernel devs
+	  running the KUnit test harness, and not intended for inclusion into a
+	  production build.
+
+	  For more information on KUnit and unit tests in general please refer
+	  to the KUnit documentation in Documentation/dev-tools/kunit/.
+
+	  If unsure, say N.
 
 endif # KUNIT

security/apparmor/Kconfig

···
 	  the kernel message buffer.
 
 config SECURITY_APPARMOR_KUNIT_TEST
-	bool "Build KUnit tests for policy_unpack.c"
+	bool "Build KUnit tests for policy_unpack.c" if !KUNIT_ALL_TESTS
 	depends on KUNIT=y && SECURITY_APPARMOR
+	default KUNIT_ALL_TESTS
 	help
 	  This builds the AppArmor KUnit tests.
 

tools/testing/kunit/kunit.py

···
 import kunit_kernel
 import kunit_parser
 
-KunitResult = namedtuple('KunitResult', ['status','result'])
+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', 'defconfig',
-					   'alltests', 'make_options'])
+					   'build_dir', 'alltests',
+					   'make_options'])
 
 KernelDirectoryPath = sys.argv[0].split('tools/testing/kunit/')[0]
 
···
 		sys.exit(1)
 	return parts[0]
 
-def run_tests(linux: kunit_kernel.LinuxSourceTree,
-	      request: KunitRequest) -> KunitResult:
+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')
+		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()
···
 	build_end = time.time()
 	if not success:
 		return KunitResult(KunitStatus.BUILD_FAILURE, 'could not build kernel')
+	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()
-	kunit_output = linux.run_kernel(
+	result = 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()
+
+	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') % (
-				test_end - config_start,
-				config_end - config_start,
-				build_end - build_start,
-				test_end - test_start))
+				run_end - run_start,
+				config_result.elapsed_time,
+				build_result.elapsed_time,
+				exec_result.elapsed_time))
+	return parse_result
 
-	if test_result.status != kunit_parser.TestStatus.SUCCESS:
-		return KunitResult(KunitStatus.TEST_FAILURE, test_result)
-	else:
-		return KunitResult(KunitStatus.SUCCESS, test_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.')
-	run_parser.add_argument('--raw_output', help='don\'t format output from kernel',
-				action='store_true')
+	add_common_opts(run_parser)
+	add_build_opts(run_parser)
+	add_exec_opts(run_parser)
+	add_parse_opts(run_parser)
 
-	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')
+	config_parser = subparser.add_parser('config',
+						help='Ensures that .config contains all of '
+						'the options in .kunitconfig')
+	add_common_opts(config_parser)
 
-	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')
+	build_parser = subparser.add_parser('build', help='Builds a kernel with KUnit tests')
+	add_common_opts(build_parser)
+	add_build_opts(build_parser)
 
-	run_parser.add_argument('--build_dir',
-				help='As in the make command, it specifies the build '
-				'directory.',
-				type=str, default='', metavar='build_dir')
+	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)
 
-	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')
+	# 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 get_kernel_root_path():
-			os.chdir(get_kernel_root_path())
+		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.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:
+		if not os.path.exists(kunit_kernel.kunitconfig_path):
 			create_default_kunitconfig()
 
 		if not linux:
···
 				       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)
+	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)
+			kunit_kernel.kunitconfig_path = os.path.join(
+				cli_args.build_dir,
+				kunit_kernel.kunitconfig_path)
+
+		if not os.path.exists(kunit_kernel.kunitconfig_path):
+			create_default_kunitconfig()
+
+		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)
+			kunit_kernel.kunitconfig_path = os.path.join(
+				cli_args.build_dir,
+				kunit_kernel.kunitconfig_path)
+
+		if not os.path.exists(kunit_kernel.kunitconfig_path):
+			create_default_kunitconfig()
+
+		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)
+			kunit_kernel.kunitconfig_path = os.path.join(
+				cli_args.build_dir,
+				kunit_kernel.kunitconfig_path)
+
+		if not os.path.exists(kunit_kernel.kunitconfig_path):
+			create_default_kunitconfig()
+
+		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:

tools/testing/kunit/kunit_tool_test.py

···
 		self.print_patch.stop()
 		pass
 
+	def test_config_passes_args_pass(self):
+		kunit.main(['config'], self.linux_source_mock)
+		assert self.linux_source_mock.build_reconfig.call_count == 1
+		assert self.linux_source_mock.run_kernel.call_count == 0
+
+	def test_build_passes_args_pass(self):
+		kunit.main(['build'], self.linux_source_mock)
+		assert self.linux_source_mock.build_reconfig.call_count == 0
+		self.linux_source_mock.build_um_kernel.assert_called_once_with(False, 8, '', None)
+		assert self.linux_source_mock.run_kernel.call_count == 0
+
+	def test_exec_passes_args_pass(self):
+		kunit.main(['exec'], self.linux_source_mock)
+		assert self.linux_source_mock.build_reconfig.call_count == 0
+		assert self.linux_source_mock.run_kernel.call_count == 1
+		self.linux_source_mock.run_kernel.assert_called_once_with(build_dir='', timeout=300)
+		self.print_mock.assert_any_call(StrContains('Testing complete.'))
+
 	def test_run_passes_args_pass(self):
 		kunit.main(['run'], self.linux_source_mock)
 		assert self.linux_source_mock.build_reconfig.call_count == 1
···
 		self.linux_source_mock.run_kernel.assert_called_once_with(
 			build_dir='', timeout=300)
 		self.print_mock.assert_any_call(StrContains('Testing complete.'))
+
+	def test_exec_passes_args_fail(self):
+		self.linux_source_mock.run_kernel = mock.Mock(return_value=[])
+		with self.assertRaises(SystemExit) as e:
+			kunit.main(['exec'], self.linux_source_mock)
+		assert type(e.exception) == SystemExit
+		assert e.exception.code == 1
 
 	def test_run_passes_args_fail(self):
 		self.linux_source_mock.run_kernel = mock.Mock(return_value=[])
···
 		assert self.linux_source_mock.run_kernel.call_count == 1
 		self.print_mock.assert_any_call(StrContains(' 0 tests run'))
 
+	def test_exec_raw_output(self):
+		self.linux_source_mock.run_kernel = mock.Mock(return_value=[])
+		kunit.main(['exec', '--raw_output'], self.linux_source_mock)
+		assert self.linux_source_mock.run_kernel.call_count == 1
+		for kall in self.print_mock.call_args_list:
+			assert kall != mock.call(StrContains('Testing complete.'))
+			assert kall != mock.call(StrContains(' 0 tests run'))
+
 	def test_run_raw_output(self):
 		self.linux_source_mock.run_kernel = mock.Mock(return_value=[])
-		with self.assertRaises(SystemExit) as e:
-			kunit.main(['run', '--raw_output'], self.linux_source_mock)
-		assert type(e.exception) == SystemExit
-		assert e.exception.code == 1
+		kunit.main(['run', '--raw_output'], self.linux_source_mock)
 		assert self.linux_source_mock.build_reconfig.call_count == 1
 		assert self.linux_source_mock.run_kernel.call_count == 1
+		for kall in self.print_mock.call_args_list:
+			assert kall != mock.call(StrContains('Testing complete.'))
+			assert kall != mock.call(StrContains(' 0 tests run'))
+
+	def test_exec_timeout(self):
+		timeout = 3453
+		kunit.main(['exec', '--timeout', str(timeout)], self.linux_source_mock)
+		self.linux_source_mock.run_kernel.assert_called_once_with(build_dir='', timeout=timeout)
+		self.print_mock.assert_any_call(StrContains('Testing complete.'))
 
 	def test_run_timeout(self):
 		timeout = 3453
···
 		assert self.linux_source_mock.build_reconfig.call_count == 1
 		self.linux_source_mock.run_kernel.assert_called_once_with(
 			build_dir=build_dir, timeout=300)
+		self.print_mock.assert_any_call(StrContains('Testing complete.'))
+
+	def test_config_builddir(self):
+		build_dir = '.kunit'
+		kunit.main(['config', '--build_dir', build_dir], self.linux_source_mock)
+		assert self.linux_source_mock.build_reconfig.call_count == 1
+
+	def test_build_builddir(self):
+		build_dir = '.kunit'
+		kunit.main(['build', '--build_dir', build_dir], self.linux_source_mock)
+		self.linux_source_mock.build_um_kernel.assert_called_once_with(False, 8, build_dir, None)
+
+	def test_exec_builddir(self):
+		build_dir = '.kunit'
+		kunit.main(['exec', '--build_dir', build_dir], self.linux_source_mock)
+		self.linux_source_mock.run_kernel.assert_called_once_with(build_dir=build_dir, timeout=300)
 		self.print_mock.assert_any_call(StrContains('Testing complete.'))
 
 if __name__ == '__main__':