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 9import unittest 10from unittest import mock 11 12import tempfile, shutil # Handling test_tmpdir 13 14import itertools 15import json 16import signal 17import os 18 19import kunit_config 20import kunit_parser 21import kunit_kernel 22import kunit_json 23import kunit 24 25test_tmpdir = '' 26abs_test_data_dir = '' 27 28def 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 33def tearDownModule(): 34 shutil.rmtree(test_tmpdir) 35 36def test_data_path(path): 37 return os.path.join(abs_test_data_dir, path) 38 39class 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 94class 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 274class 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 297class 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 325class StrContains(str): 326 def __eq__(self, other): 327 return self in other 328 329class 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 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 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_exec_timeout(self): 403 timeout = 3453 404 kunit.main(['exec', '--timeout', str(timeout)], self.linux_source_mock) 405 self.linux_source_mock.run_kernel.assert_called_once_with( 406 build_dir='.kunit', filter_glob='', timeout=timeout) 407 self.print_mock.assert_any_call(StrContains('Testing complete.')) 408 409 def test_run_timeout(self): 410 timeout = 3453 411 kunit.main(['run', '--timeout', str(timeout)], self.linux_source_mock) 412 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) 413 self.linux_source_mock.run_kernel.assert_called_once_with( 414 build_dir='.kunit', filter_glob='', timeout=timeout) 415 self.print_mock.assert_any_call(StrContains('Testing complete.')) 416 417 def test_run_builddir(self): 418 build_dir = '.kunit' 419 kunit.main(['run', '--build_dir=.kunit'], self.linux_source_mock) 420 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) 421 self.linux_source_mock.run_kernel.assert_called_once_with( 422 build_dir=build_dir, filter_glob='', timeout=300) 423 self.print_mock.assert_any_call(StrContains('Testing complete.')) 424 425 def test_config_builddir(self): 426 build_dir = '.kunit' 427 kunit.main(['config', '--build_dir', build_dir], self.linux_source_mock) 428 self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 1) 429 430 def test_build_builddir(self): 431 build_dir = '.kunit' 432 kunit.main(['build', '--build_dir', build_dir], self.linux_source_mock) 433 self.linux_source_mock.build_kernel.assert_called_once_with(False, 8, build_dir, None) 434 435 def test_exec_builddir(self): 436 build_dir = '.kunit' 437 kunit.main(['exec', '--build_dir', build_dir], self.linux_source_mock) 438 self.linux_source_mock.run_kernel.assert_called_once_with( 439 build_dir=build_dir, filter_glob='', timeout=300) 440 self.print_mock.assert_any_call(StrContains('Testing complete.')) 441 442 @mock.patch.object(kunit_kernel, 'LinuxSourceTree') 443 def test_run_kunitconfig(self, mock_linux_init): 444 mock_linux_init.return_value = self.linux_source_mock 445 kunit.main(['run', '--kunitconfig=mykunitconfig']) 446 # Just verify that we parsed and initialized it correctly here. 447 mock_linux_init.assert_called_once_with('.kunit', 448 kunitconfig_path='mykunitconfig', 449 arch='um', 450 cross_compile=None, 451 qemu_config_path=None) 452 453 @mock.patch.object(kunit_kernel, 'LinuxSourceTree') 454 def test_config_kunitconfig(self, mock_linux_init): 455 mock_linux_init.return_value = self.linux_source_mock 456 kunit.main(['config', '--kunitconfig=mykunitconfig']) 457 # Just verify that we parsed and initialized it correctly here. 458 mock_linux_init.assert_called_once_with('.kunit', 459 kunitconfig_path='mykunitconfig', 460 arch='um', 461 cross_compile=None, 462 qemu_config_path=None) 463 464if __name__ == '__main__': 465 unittest.main() 466