linux_dsm_epyc7002/tools/testing/kunit/kunit_tool_test.py
Heidi Fahim 021ed9f551 kunit: Run all KUnit tests through allyesconfig
Implemented the functionality to run all KUnit tests through kunit_tool
by specifying an --alltests flag, which builds UML with allyesconfig
enabled, and consequently runs every KUnit test. A new function was
added to kunit_kernel: make_allyesconfig.
Firstly, if --alltests is specified, kunit.py triggers build_um_kernel
which call make_allyesconfig. This function calls the make command,
disables the broken configs that would otherwise prevent UML from
building, then starts the kernel with all possible configurations
enabled. All stdout and stderr is sent to test.log and read from there
then fed through kunit_parser to parse the tests to the user. Also added
a signal_handler in case kunit is interrupted while running.
Tested: Run under different conditions such as testing with
--raw_output, testing program interrupt then immediately running kunit
again without --alltests and making sure to clean the console.

Signed-off-by: Heidi Fahim <heidifahim@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-03-20 16:17:39 -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('CONFIG_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('CONFIG_UML=y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('CONFIG_MMU=y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('CONFIG_TEST=y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('CONFIG_EXAMPLE_TEST=y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('# CONFIG_MK8 is not set'))
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('CONFIG_UML=y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('CONFIG_MMU=y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('CONFIG_TEST=y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('CONFIG_EXAMPLE_TEST=y'))
expected_kconfig.add_entry(
kunit_config.KconfigEntry('# CONFIG_MK8 is not set'))
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_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_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_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
assert self.linux_source_mock.build_reconfig.call_count == 1
assert self.linux_source_mock.run_kernel.call_count == 1
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.'))
if __name__ == '__main__':
unittest.main()