tools/testing/kunit/kunit_tool_test.py

   1 #!/usr/bin/env python3
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # A collection of tests for tools/testing/kunit/kunit.py
   5 #
   6 # Copyright (C) 2019, Google LLC.
   7 # Author: Brendan Higgins <brendanhiggins@google.com>
   8
   9 import unittest
  10 from unittest import mock
  11
  12 import tempfile, shutil # Handling test_tmpdir
  13
  14 import itertools
  15 import json
  16 import signal
  17 import os
  18
  19 import kunit_config
  20 import kunit_parser
  21 import kunit_kernel
  22 import kunit_json
  23 import kunit
  24
  25 test_tmpdir = ''
  26 abs_test_data_dir = ''
  27
  28 def setUpModule():
  29         global test_tmpdir, abs_test_data_dir
  30         test_tmpdir = tempfile.mkdtemp()
  31         abs_test_data_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), 'test_data'))
  32
  33 def tearDownModule():
  34         shutil.rmtree(test_tmpdir)
  35
  36 def test_data_path(path):
  37         return os.path.join(abs_test_data_dir, path)
  38
  39 class KconfigTest(unittest.TestCase):
  40
  41         def test_is_subset_of(self):
  42                 kconfig0 = kunit_config.Kconfig()
  43                 self.assertTrue(kconfig0.is_subset_of(kconfig0))
  44
  45                 kconfig1 = kunit_config.Kconfig()
  46                 kconfig1.add_entry(kunit_config.KconfigEntry('TEST', 'y'))
  47                 self.assertTrue(kconfig1.is_subset_of(kconfig1))
  48                 self.assertTrue(kconfig0.is_subset_of(kconfig1))
  49                 self.assertFalse(kconfig1.is_subset_of(kconfig0))
  50
  51         def test_read_from_file(self):
  52                 kconfig = kunit_config.Kconfig()
  53                 kconfig_path = test_data_path('test_read_from_file.kconfig')
  54
  55                 kconfig.read_from_file(kconfig_path)
  56
  57                 expected_kconfig = kunit_config.Kconfig()
  58                 expected_kconfig.add_entry(
  59                         kunit_config.KconfigEntry('UML', 'y'))
  60                 expected_kconfig.add_entry(
  61                         kunit_config.KconfigEntry('MMU', 'y'))
  62                 expected_kconfig.add_entry(
  63                         kunit_config.KconfigEntry('TEST', 'y'))
  64                 expected_kconfig.add_entry(
  65                         kunit_config.KconfigEntry('EXAMPLE_TEST', 'y'))
  66                 expected_kconfig.add_entry(
  67                         kunit_config.KconfigEntry('MK8', 'n'))
  68
  69                 self.assertEqual(kconfig.entries(), expected_kconfig.entries())
  70
  71         def test_write_to_file(self):
  72                 kconfig_path = os.path.join(test_tmpdir, '.config')
  73
  74                 expected_kconfig = kunit_config.Kconfig()
  75                 expected_kconfig.add_entry(
  76                         kunit_config.KconfigEntry('UML', 'y'))
  77                 expected_kconfig.add_entry(
  78                         kunit_config.KconfigEntry('MMU', 'y'))
  79                 expected_kconfig.add_entry(
  80                         kunit_config.KconfigEntry('TEST', 'y'))
  81                 expected_kconfig.add_entry(
  82                         kunit_config.KconfigEntry('EXAMPLE_TEST', 'y'))
  83                 expected_kconfig.add_entry(
  84                         kunit_config.KconfigEntry('MK8', 'n'))
  85
  86                 expected_kconfig.write_to_file(kconfig_path)
  87
  88                 actual_kconfig = kunit_config.Kconfig()
  89                 actual_kconfig.read_from_file(kconfig_path)
  90
  91                 self.assertEqual(actual_kconfig.entries(),
  92                                  expected_kconfig.entries())
  93
  94 class KUnitParserTest(unittest.TestCase):
  95
  96         def assertContains(self, needle: str, haystack: kunit_parser.LineStream):
  97                 # Clone the iterator so we can print the contents on failure.
  98                 copy, backup = itertools.tee(haystack)
  99                 for line in copy:
 100                         if needle in line:
 101                                 return
 102                 raise AssertionError(f'"{needle}" not found in {list(backup)}!')
 103
 104         def test_output_isolated_correctly(self):
 105                 log_path = test_data_path('test_output_isolated_correctly.log')
 106                 with open(log_path) as file:
 107                         result = kunit_parser.extract_tap_lines(file.readlines())
 108                 self.assertContains('TAP version 14', result)
 109                 self.assertContains('   # Subtest: example', result)
 110                 self.assertContains('   1..2', result)
 111                 self.assertContains('   ok 1 - example_simple_test', result)
 112                 self.assertContains('   ok 2 - example_mock_test', result)
 113                 self.assertContains('ok 1 - example', result)
 114
 115         def test_output_with_prefix_isolated_correctly(self):
 116                 log_path = test_data_path('test_pound_sign.log')
 117                 with open(log_path) as file:
 118                         result = kunit_parser.extract_tap_lines(file.readlines())
 119                 self.assertContains('TAP version 14', result)
 120                 self.assertContains('   # Subtest: kunit-resource-test', result)
 121                 self.assertContains('   1..5', result)
 122                 self.assertContains('   ok 1 - kunit_resource_test_init_resources', result)
 123                 self.assertContains('   ok 2 - kunit_resource_test_alloc_resource', result)
 124                 self.assertContains('   ok 3 - kunit_resource_test_destroy_resource', result)
 125                 self.assertContains(' foo bar   #', result)
 126                 self.assertContains('   ok 4 - kunit_resource_test_cleanup_resources', result)
 127                 self.assertContains('   ok 5 - kunit_resource_test_proper_free_ordering', result)
 128                 self.assertContains('ok 1 - kunit-resource-test', result)
 129                 self.assertContains(' foo bar   # non-kunit output', result)
 130                 self.assertContains('   # Subtest: kunit-try-catch-test', result)
 131                 self.assertContains('   1..2', result)
 132                 self.assertContains('   ok 1 - kunit_test_try_catch_successful_try_no_catch',
 133                                     result)
 134                 self.assertContains('   ok 2 - kunit_test_try_catch_unsuccessful_try_does_catch',
 135                                     result)
 136                 self.assertContains('ok 2 - kunit-try-catch-test', result)
 137                 self.assertContains('   # Subtest: string-stream-test', result)
 138                 self.assertContains('   1..3', result)
 139                 self.assertContains('   ok 1 - string_stream_test_empty_on_creation', result)
 140                 self.assertContains('   ok 2 - string_stream_test_not_empty_after_add', result)
 141                 self.assertContains('   ok 3 - string_stream_test_get_string', result)
 142                 self.assertContains('ok 3 - string-stream-test', result)
 143
 144         def test_parse_successful_test_log(self):
 145                 all_passed_log = test_data_path('test_is_test_passed-all_passed.log')
 146                 with open(all_passed_log) as file:
 147                         result = kunit_parser.parse_run_tests(file.readlines())
 148                 self.assertEqual(
 149                         kunit_parser.TestStatus.SUCCESS,
 150                         result.status)
 151
 152         def test_parse_failed_test_log(self):
 153                 failed_log = test_data_path('test_is_test_passed-failure.log')
 154                 with open(failed_log) as file:
 155                         result = kunit_parser.parse_run_tests(file.readlines())
 156                 self.assertEqual(
 157                         kunit_parser.TestStatus.FAILURE,
 158                         result.status)
 159
 160         def test_no_header(self):
 161                 empty_log = test_data_path('test_is_test_passed-no_tests_run_no_header.log')
 162                 with open(empty_log) as file:
 163                         result = kunit_parser.parse_run_tests(
 164                                 kunit_parser.extract_tap_lines(file.readlines()))
 165                 self.assertEqual(0, len(result.suites))
 166                 self.assertEqual(
 167                         kunit_parser.TestStatus.FAILURE_TO_PARSE_TESTS,
 168                         result.status)
 169
 170         def test_no_tests(self):
 171                 empty_log = test_data_path('test_is_test_passed-no_tests_run_with_header.log')
 172                 with open(empty_log) as file:
 173                         result = kunit_parser.parse_run_tests(
 174                                 kunit_parser.extract_tap_lines(file.readlines()))
 175                 self.assertEqual(0, len(result.suites))
 176                 self.assertEqual(
 177                         kunit_parser.TestStatus.NO_TESTS,
 178                         result.status)
 179
 180         def test_no_kunit_output(self):
 181                 crash_log = test_data_path('test_insufficient_memory.log')
 182                 print_mock = mock.patch('builtins.print').start()
 183                 with open(crash_log) as file:
 184                         result = kunit_parser.parse_run_tests(
 185                                 kunit_parser.extract_tap_lines(file.readlines()))
 186                 print_mock.assert_any_call(StrContains('could not parse test results!'))
 187                 print_mock.stop()
 188                 file.close()
 189
 190         def test_crashed_test(self):
 191                 crashed_log = test_data_path('test_is_test_passed-crash.log')
 192                 with open(crashed_log) as file:
 193                         result = kunit_parser.parse_run_tests(file.readlines())
 194                 self.assertEqual(
 195                         kunit_parser.TestStatus.TEST_CRASHED,
 196                         result.status)
 197
 198         def test_skipped_test(self):
 199                 skipped_log = test_data_path('test_skip_tests.log')
 200                 file = open(skipped_log)
 201                 result = kunit_parser.parse_run_tests(file.readlines())
 202
 203                 # A skipped test does not fail the whole suite.
 204                 self.assertEqual(
 205                         kunit_parser.TestStatus.SUCCESS,
 206                         result.status)
 207                 file.close()
 208
 209         def test_skipped_all_tests(self):
 210                 skipped_log = test_data_path('test_skip_all_tests.log')
 211                 file = open(skipped_log)
 212                 result = kunit_parser.parse_run_tests(file.readlines())
 213
 214                 self.assertEqual(
 215                         kunit_parser.TestStatus.SKIPPED,
 216                         result.status)
 217                 file.close()
 218
 219
 220         def test_ignores_prefix_printk_time(self):
 221                 prefix_log = test_data_path('test_config_printk_time.log')
 222                 with open(prefix_log) as file:
 223                         result = kunit_parser.parse_run_tests(file.readlines())
 224                         self.assertEqual(
 225                                 kunit_parser.TestStatus.SUCCESS,
 226                                 result.status)
 227                         self.assertEqual('kunit-resource-test', result.suites[0].name)
 228
 229         def test_ignores_multiple_prefixes(self):
 230                 prefix_log = test_data_path('test_multiple_prefixes.log')
 231                 with open(prefix_log) as file:
 232                         result = kunit_parser.parse_run_tests(file.readlines())
 233                         self.assertEqual(
 234                                 kunit_parser.TestStatus.SUCCESS,
 235                                 result.status)
 236                         self.assertEqual('kunit-resource-test', result.suites[0].name)
 237
 238         def test_prefix_mixed_kernel_output(self):
 239                 mixed_prefix_log = test_data_path('test_interrupted_tap_output.log')
 240                 with open(mixed_prefix_log) as file:
 241                         result = kunit_parser.parse_run_tests(file.readlines())
 242                         self.assertEqual(
 243                                 kunit_parser.TestStatus.SUCCESS,
 244                                 result.status)
 245                         self.assertEqual('kunit-resource-test', result.suites[0].name)
 246
 247         def test_prefix_poundsign(self):
 248                 pound_log = test_data_path('test_pound_sign.log')
 249                 with open(pound_log) as file:
 250                         result = kunit_parser.parse_run_tests(file.readlines())
 251                         self.assertEqual(
 252                                 kunit_parser.TestStatus.SUCCESS,
 253                                 result.status)
 254                         self.assertEqual('kunit-resource-test', result.suites[0].name)
 255
 256         def test_kernel_panic_end(self):
 257                 panic_log = test_data_path('test_kernel_panic_interrupt.log')
 258                 with open(panic_log) as file:
 259                         result = kunit_parser.parse_run_tests(file.readlines())
 260                         self.assertEqual(
 261                                 kunit_parser.TestStatus.TEST_CRASHED,
 262                                 result.status)
 263                         self.assertEqual('kunit-resource-test', result.suites[0].name)
 264
 265         def test_pound_no_prefix(self):
 266                 pound_log = test_data_path('test_pound_no_prefix.log')
 267                 with open(pound_log) as file:
 268                         result = kunit_parser.parse_run_tests(file.readlines())
 269                         self.assertEqual(
 270                                 kunit_parser.TestStatus.SUCCESS,
 271                                 result.status)
 272                         self.assertEqual('kunit-resource-test', result.suites[0].name)
 273
 274 class LinuxSourceTreeTest(unittest.TestCase):
 275
 276         def setUp(self):
 277                 mock.patch.object(signal, 'signal').start()
 278                 self.addCleanup(mock.patch.stopall)
 279
 280         def test_invalid_kunitconfig(self):
 281                 with self.assertRaisesRegex(kunit_kernel.ConfigError, 'nonexistent.* does not exist'):
 282                         kunit_kernel.LinuxSourceTree('', kunitconfig_path='/nonexistent_file')
 283
 284         def test_valid_kunitconfig(self):
 285                 with tempfile.NamedTemporaryFile('wt') as kunitconfig:
 286                         tree = kunit_kernel.LinuxSourceTree('', kunitconfig_path=kunitconfig.name)
 287
 288         def test_dir_kunitconfig(self):
 289                 with tempfile.TemporaryDirectory('') as dir:
 290                         with open(os.path.join(dir, '.kunitconfig'), 'w') as f:
 291                                 pass
 292                         tree = kunit_kernel.LinuxSourceTree('', kunitconfig_path=dir)
 293
 294         # TODO: add more test cases.
 295
 296
 297 class KUnitJsonTest(unittest.TestCase):
 298
 299         def _json_for(self, log_file):
 300                 with open(test_data_path(log_file)) as file:
 301                         test_result = kunit_parser.parse_run_tests(file)
 302                         json_obj = kunit_json.get_json_result(
 303                                 test_result=test_result,
 304                                 def_config='kunit_defconfig',
 305                                 build_dir=None,
 306                                 json_path='stdout')
 307                 return json.loads(json_obj)
 308
 309         def test_failed_test_json(self):
 310                 result = self._json_for('test_is_test_passed-failure.log')
 311                 self.assertEqual(
 312                         {'name': 'example_simple_test', 'status': 'FAIL'},
 313                         result["sub_groups"][1]["test_cases"][0])
 314
 315         def test_crashed_test_json(self):
 316                 result = self._json_for('test_is_test_passed-crash.log')
 317                 self.assertEqual(
 318                         {'name': 'example_simple_test', 'status': 'ERROR'},
 319                         result["sub_groups"][1]["test_cases"][0])
 320
 321         def test_no_tests_json(self):
 322                 result = self._json_for('test_is_test_passed-no_tests_run_with_header.log')
 323                 self.assertEqual(0, len(result['sub_groups']))
 324
 325 class StrContains(str):
 326         def __eq__(self, other):
 327                 return self in other
 328
 329 class KUnitMainTest(unittest.TestCase):
 330         def setUp(self):
 331                 path = test_data_path('test_is_test_passed-all_passed.log')
 332                 with open(path) as file:
 333                         all_passed_log = file.readlines()
 334
 335                 self.print_mock = mock.patch('builtins.print').start()
 336                 self.addCleanup(mock.patch.stopall)
 337
 338                 self.linux_source_mock = mock.Mock()
 339                 self.linux_source_mock.build_reconfig = mock.Mock(return_value=True)
 340                 self.linux_source_mock.build_kernel = mock.Mock(return_value=True)
 341                 self.linux_source_mock.run_kernel = mock.Mock(return_value=all_passed_log)
 342
 343         def test_config_passes_args_pass(self):
 344                 kunit.main(['config', '--build_dir=.kunit'], self.linux_source_mock)
 345                 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1)
 346                 self.assertEqual(self.linux_source_mock.run_kernel.call_count, 0)
 347
 348         def test_build_passes_args_pass(self):
 349                 kunit.main(['build'], self.linux_source_mock)
 350                 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 0)
 351                 self.linux_source_mock.build_kernel.assert_called_once_with(False, 8, '.kunit', None)
 352                 self.assertEqual(self.linux_source_mock.run_kernel.call_count, 0)
 353
 354         def test_exec_passes_args_pass(self):
 355                 kunit.main(['exec'], self.linux_source_mock)
 356                 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 0)
 357                 self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1)
 358                 self.linux_source_mock.run_kernel.assert_called_once_with(
 359                         args=None, build_dir='.kunit', filter_glob='', timeout=300)
 360                 self.print_mock.assert_any_call(StrContains('Testing complete.'))
 361
 362         def test_run_passes_args_pass(self):
 363                 kunit.main(['run'], self.linux_source_mock)
 364                 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1)
 365                 self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1)
 366                 self.linux_source_mock.run_kernel.assert_called_once_with(
 367                         args=None, build_dir='.kunit', filter_glob='', timeout=300)
 368                 self.print_mock.assert_any_call(StrContains('Testing complete.'))
 369
 370         def test_exec_passes_args_fail(self):
 371                 self.linux_source_mock.run_kernel = mock.Mock(return_value=[])
 372                 with self.assertRaises(SystemExit) as e:
 373                         kunit.main(['exec'], self.linux_source_mock)
 374                 self.assertEqual(e.exception.code, 1)
 375
 376         def test_run_passes_args_fail(self):
 377                 self.linux_source_mock.run_kernel = mock.Mock(return_value=[])
 378                 with self.assertRaises(SystemExit) as e:
 379                         kunit.main(['run'], self.linux_source_mock)
 380                 self.assertEqual(e.exception.code, 1)
 381                 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1)
 382                 self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1)
 383                 self.print_mock.assert_any_call(StrContains(' 0 tests run'))
 384
 385         def test_exec_raw_output(self):
 386                 self.linux_source_mock.run_kernel = mock.Mock(return_value=[])
 387                 kunit.main(['exec', '--raw_output'], self.linux_source_mock)
 388                 self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1)
 389                 for call in self.print_mock.call_args_list:
 390                         self.assertNotEqual(call, mock.call(StrContains('Testing complete.')))
 391                         self.assertNotEqual(call, mock.call(StrContains(' 0 tests run')))
 392
 393         def test_run_raw_output(self):
 394                 self.linux_source_mock.run_kernel = mock.Mock(return_value=[])
 395                 kunit.main(['run', '--raw_output'], self.linux_source_mock)
 396                 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1)
 397                 self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1)
 398                 for call in self.print_mock.call_args_list:
 399                         self.assertNotEqual(call, mock.call(StrContains('Testing complete.')))
 400                         self.assertNotEqual(call, mock.call(StrContains(' 0 tests run')))
 401
 402         def test_run_raw_output_kunit(self):
 403                 self.linux_source_mock.run_kernel = mock.Mock(return_value=[])
 404                 kunit.main(['run', '--raw_output=kunit'], self.linux_source_mock)
 405                 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1)
 406                 self.assertEqual(self.linux_source_mock.run_kernel.call_count, 1)
 407                 for call in self.print_mock.call_args_list:
 408                         self.assertNotEqual(call, mock.call(StrContains('Testing complete.')))
 409                         self.assertNotEqual(call, mock.call(StrContains(' 0 tests run')))
 410
 411         def test_exec_timeout(self):
 412                 timeout = 3453
 413                 kunit.main(['exec', '--timeout', str(timeout)], self.linux_source_mock)
 414                 self.linux_source_mock.run_kernel.assert_called_once_with(
 415                         args=None, build_dir='.kunit', filter_glob='', timeout=timeout)
 416                 self.print_mock.assert_any_call(StrContains('Testing complete.'))
 417
 418         def test_run_timeout(self):
 419                 timeout = 3453
 420                 kunit.main(['run', '--timeout', str(timeout)], self.linux_source_mock)
 421                 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1)
 422                 self.linux_source_mock.run_kernel.assert_called_once_with(
 423                         args=None, build_dir='.kunit', filter_glob='', timeout=timeout)
 424                 self.print_mock.assert_any_call(StrContains('Testing complete.'))
 425
 426         def test_run_builddir(self):
 427                 build_dir = '.kunit'
 428                 kunit.main(['run', '--build_dir=.kunit'], self.linux_source_mock)
 429                 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1)
 430                 self.linux_source_mock.run_kernel.assert_called_once_with(
 431                         args=None, build_dir=build_dir, filter_glob='', timeout=300)
 432                 self.print_mock.assert_any_call(StrContains('Testing complete.'))
 433
 434         def test_config_builddir(self):
 435                 build_dir = '.kunit'
 436                 kunit.main(['config', '--build_dir', build_dir], self.linux_source_mock)
 437                 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1)
 438
 439         def test_build_builddir(self):
 440                 build_dir = '.kunit'
 441                 kunit.main(['build', '--build_dir', build_dir], self.linux_source_mock)
 442                 self.linux_source_mock.build_kernel.assert_called_once_with(False, 8, build_dir, None)
 443
 444         def test_exec_builddir(self):
 445                 build_dir = '.kunit'
 446                 kunit.main(['exec', '--build_dir', build_dir], self.linux_source_mock)
 447                 self.linux_source_mock.run_kernel.assert_called_once_with(
 448                         args=None, build_dir=build_dir, filter_glob='', timeout=300)
 449                 self.print_mock.assert_any_call(StrContains('Testing complete.'))
 450
 451         @mock.patch.object(kunit_kernel, 'LinuxSourceTree')
 452         def test_run_kunitconfig(self, mock_linux_init):
 453                 mock_linux_init.return_value = self.linux_source_mock
 454                 kunit.main(['run', '--kunitconfig=mykunitconfig'])
 455                 # Just verify that we parsed and initialized it correctly here.
 456                 mock_linux_init.assert_called_once_with('.kunit',
 457                                                         kunitconfig_path='mykunitconfig',
 458                                                         arch='um',
 459                                                         cross_compile=None,
 460                                                         qemu_config_path=None)
 461
 462         @mock.patch.object(kunit_kernel, 'LinuxSourceTree')
 463         def test_config_kunitconfig(self, mock_linux_init):
 464                 mock_linux_init.return_value = self.linux_source_mock
 465                 kunit.main(['config', '--kunitconfig=mykunitconfig'])
 466                 # Just verify that we parsed and initialized it correctly here.
 467                 mock_linux_init.assert_called_once_with('.kunit',
 468                                                         kunitconfig_path='mykunitconfig',
 469                                                         arch='um',
 470                                                         cross_compile=None,
 471                                                         qemu_config_path=None)
 472
 473         def test_run_kernel_args(self):
 474                 kunit.main(['run', '--kernel_args=a=1', '--kernel_args=b=2'], self.linux_source_mock)
 475                 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1)
 476                 self.linux_source_mock.run_kernel.assert_called_once_with(
 477                       args=['a=1','b=2'], build_dir='.kunit', filter_glob='', timeout=300)
 478                 self.print_mock.assert_any_call(StrContains('Testing complete.'))
 479
 480
 481 if __name__ == '__main__':
 482         unittest.main()