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kernel_optimize_test/tools/testing/kunit/kunit_tool_test.py
David Gow 45ba7a893a kunit: kunit_tool: Separate out config/build/exec/parse 
Add new subcommands to kunit.py to allow stages of the existing 'run'
subcommand to be run independently:
- 'config': Verifies that .config is a subset of .kunitconfig
- 'build': Compiles a UML kernel for KUnit
- 'exec': Runs the kernel, and outputs the test results.
- 'parse': Parses test results from a file or stdin

The 'run' command continues to behave as before.

Signed-off-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-05-11 16:53:40 -06:00

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#!/usr/bin/python3
# SPDX-License-Identifier: GPL-2.0
#
# A collection of tests for tools/testing/kunit/kunit.py
#
# Copyright (C) 2019, Google LLC.
# Author: Brendan Higgins <brendanhiggins@google.com>
import unittest
from unittest import mock
import tempfile, shutil # Handling test_tmpdir
import os
import kunit_config
import kunit_parser
import kunit_kernel
import kunit
test_tmpdir = ''
def setUpModule():
global test_tmpdir
test_tmpdir = tempfile.mkdtemp()
def tearDownModule():
shutil.rmtree(test_tmpdir)
def get_absolute_path(path):
return os.path.join(os.path.dirname(__file__), path)
class KconfigTest(unittest.TestCase):
def test_is_subset_of(self):
kconfig0 = kunit_config.Kconfig()
self.assertTrue(kconfig0.is_subset_of(kconfig0))
kconfig1 = kunit_config.Kconfig()
kconfig1.add_entry(kunit_config.KconfigEntry('TEST', 'y'))
self.assertTrue(kconfig1.is_subset_of(kconfig1))
self.assertTrue(kconfig0.is_subset_of(kconfig1))
self.assertFalse(kconfig1.is_subset_of(kconfig0))
def test_read_from_file(self):
kconfig = kunit_config.Kconfig()
kconfig_path = get_absolute_path(
'test_data/test_read_from_file.kconfig')
kconfig.read_from_file(kconfig_path)
expected_kconfig = kunit_config.Kconfig()
expected_kconfig.add_entry(
kunit_config.KconfigEntry('UML', 'y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('MMU', 'y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('TEST', 'y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('EXAMPLE_TEST', 'y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('MK8', 'n'))
self.assertEqual(kconfig.entries(), expected_kconfig.entries())
def test_write_to_file(self):
kconfig_path = os.path.join(test_tmpdir, '.config')
expected_kconfig = kunit_config.Kconfig()
expected_kconfig.add_entry(
kunit_config.KconfigEntry('UML', 'y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('MMU', 'y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('TEST', 'y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('EXAMPLE_TEST', 'y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('MK8', 'n'))
expected_kconfig.write_to_file(kconfig_path)
actual_kconfig = kunit_config.Kconfig()
actual_kconfig.read_from_file(kconfig_path)
self.assertEqual(actual_kconfig.entries(),
expected_kconfig.entries())
class KUnitParserTest(unittest.TestCase):
def assertContains(self, needle, haystack):
for line in haystack:
if needle in line:
return
raise AssertionError('"' +
str(needle) + '" not found in "' + str(haystack) + '"!')
def test_output_isolated_correctly(self):
log_path = get_absolute_path(
'test_data/test_output_isolated_correctly.log')
file = open(log_path)
result = kunit_parser.isolate_kunit_output(file.readlines())
self.assertContains('TAP version 14\n', result)
self.assertContains(' # Subtest: example', result)
self.assertContains(' 1..2', result)
self.assertContains(' ok 1 - example_simple_test', result)
self.assertContains(' ok 2 - example_mock_test', result)
self.assertContains('ok 1 - example', result)
file.close()
def test_output_with_prefix_isolated_correctly(self):
log_path = get_absolute_path(
'test_data/test_pound_sign.log')
with open(log_path) as file:
result = kunit_parser.isolate_kunit_output(file.readlines())
self.assertContains('TAP version 14\n', result)
self.assertContains(' # Subtest: kunit-resource-test', result)
self.assertContains(' 1..5', result)
self.assertContains(' ok 1 - kunit_resource_test_init_resources', result)
self.assertContains(' ok 2 - kunit_resource_test_alloc_resource', result)
self.assertContains(' ok 3 - kunit_resource_test_destroy_resource', result)
self.assertContains(' foo bar #', result)
self.assertContains(' ok 4 - kunit_resource_test_cleanup_resources', result)
self.assertContains(' ok 5 - kunit_resource_test_proper_free_ordering', result)
self.assertContains('ok 1 - kunit-resource-test', result)
self.assertContains(' foo bar # non-kunit output', result)
self.assertContains(' # Subtest: kunit-try-catch-test', result)
self.assertContains(' 1..2', result)
self.assertContains(' ok 1 - kunit_test_try_catch_successful_try_no_catch',
result)
self.assertContains(' ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch',
result)
self.assertContains('ok 2 - kunit-try-catch-test', result)
self.assertContains(' # Subtest: string-stream-test', result)
self.assertContains(' 1..3', result)
self.assertContains(' ok 1 - string_stream_test_empty_on_creation', result)
self.assertContains(' ok 2 - string_stream_test_not_empty_after_add', result)
self.assertContains(' ok 3 - string_stream_test_get_string', result)
self.assertContains('ok 3 - string-stream-test', result)
def test_parse_successful_test_log(self):
all_passed_log = get_absolute_path(
'test_data/test_is_test_passed-all_passed.log')
file = open(all_passed_log)
result = kunit_parser.parse_run_tests(file.readlines())
self.assertEqual(
kunit_parser.TestStatus.SUCCESS,
result.status)
file.close()
def test_parse_failed_test_log(self):
failed_log = get_absolute_path(
'test_data/test_is_test_passed-failure.log')
file = open(failed_log)
result = kunit_parser.parse_run_tests(file.readlines())
self.assertEqual(
kunit_parser.TestStatus.FAILURE,
result.status)
file.close()
def test_no_tests(self):
empty_log = get_absolute_path(
'test_data/test_is_test_passed-no_tests_run.log')
file = open(empty_log)
result = kunit_parser.parse_run_tests(
kunit_parser.isolate_kunit_output(file.readlines()))
self.assertEqual(0, len(result.suites))
self.assertEqual(
kunit_parser.TestStatus.NO_TESTS,
result.status)
file.close()
def test_crashed_test(self):
crashed_log = get_absolute_path(
'test_data/test_is_test_passed-crash.log')
file = open(crashed_log)
result = kunit_parser.parse_run_tests(file.readlines())
self.assertEqual(
kunit_parser.TestStatus.TEST_CRASHED,
result.status)
file.close()
def test_ignores_prefix_printk_time(self):
prefix_log = get_absolute_path(
'test_data/test_config_printk_time.log')
with open(prefix_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
self.assertEqual('kunit-resource-test', result.suites[0].name)
def test_ignores_multiple_prefixes(self):
prefix_log = get_absolute_path(
'test_data/test_multiple_prefixes.log')
with open(prefix_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
self.assertEqual('kunit-resource-test', result.suites[0].name)
def test_prefix_mixed_kernel_output(self):
mixed_prefix_log = get_absolute_path(
'test_data/test_interrupted_tap_output.log')
with open(mixed_prefix_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
self.assertEqual('kunit-resource-test', result.suites[0].name)
def test_prefix_poundsign(self):
pound_log = get_absolute_path('test_data/test_pound_sign.log')
with open(pound_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
self.assertEqual('kunit-resource-test', result.suites[0].name)
def test_kernel_panic_end(self):
panic_log = get_absolute_path('test_data/test_kernel_panic_interrupt.log')
with open(panic_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
self.assertEqual('kunit-resource-test', result.suites[0].name)
def test_pound_no_prefix(self):
pound_log = get_absolute_path('test_data/test_pound_no_prefix.log')
with open(pound_log) as file:
result = kunit_parser.parse_run_tests(file.readlines())
self.assertEqual('kunit-resource-test', result.suites[0].name)
class StrContains(str):
def __eq__(self, other):
return self in other
class KUnitMainTest(unittest.TestCase):
def setUp(self):
path = get_absolute_path('test_data/test_is_test_passed-all_passed.log')
file = open(path)
all_passed_log = file.readlines()
self.print_patch = mock.patch('builtins.print')
self.print_mock = self.print_patch.start()
self.linux_source_mock = mock.Mock()
self.linux_source_mock.build_reconfig = mock.Mock(return_value=True)
self.linux_source_mock.build_um_kernel = mock.Mock(return_value=True)
self.linux_source_mock.run_kernel = mock.Mock(return_value=all_passed_log)
def tearDown(self):
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
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_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=[])
with self.assertRaises(SystemExit) as e:
kunit.main(['run'], self.linux_source_mock)
assert type(e.exception) == SystemExit
assert e.exception.code == 1
assert self.linux_source_mock.build_reconfig.call_count == 1
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=[])
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
kunit.main(['run', '--timeout', str(timeout)], 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=timeout)
self.print_mock.assert_any_call(StrContains('Testing complete.'))
def test_run_builddir(self):
build_dir = '.kunit'
kunit.main(['run', '--build_dir', build_dir], 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=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__':
unittest.main()
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