How to use cleanup method in testing-library-react-hooks

Best JavaScript code snippet using testing-library-react-hooks

test_runner.py

Source:test_runner.py Github

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...24 # adding empty suites to the end exposes potential bugs25 suite.addTest(unittest.TestSuite())26 realSuite.addTest(unittest.TestSuite())27 return runner.run(realSuite)28def cleanup(ordering, blowUp=False):29 if not blowUp:30 ordering.append('cleanup_good')31 else:32 ordering.append('cleanup_exc')33 raise Exception('CleanUpExc')34class TestCleanUp(unittest.TestCase):35 def testCleanUp(self):36 class TestableTest(unittest.TestCase):37 def testNothing(self):38 pass39 test = TestableTest('testNothing')40 self.assertEqual(test._cleanups, [])41 cleanups = []42 def cleanup1(*args, **kwargs):43 cleanups.append((1, args, kwargs))44 def cleanup2(*args, **kwargs):45 cleanups.append((2, args, kwargs))46 test.addCleanup(cleanup1, 1, 2, 3, four='hello', five='goodbye')47 test.addCleanup(cleanup2)48 self.assertEqual(test._cleanups,49 [(cleanup1, (1, 2, 3), dict(four='hello', five='goodbye')),50 (cleanup2, (), {})])51 self.assertTrue(test.doCleanups())52 self.assertEqual(cleanups, [(2, (), {}), (1, (1, 2, 3), dict(four='hello', five='goodbye'))])53 def testCleanUpWithErrors(self):54 class TestableTest(unittest.TestCase):55 def testNothing(self):56 pass57 test = TestableTest('testNothing')58 outcome = test._outcome = _Outcome()59 CleanUpExc = Exception('foo')60 exc2 = Exception('bar')61 def cleanup1():62 raise CleanUpExc63 def cleanup2():64 raise exc265 test.addCleanup(cleanup1)66 test.addCleanup(cleanup2)67 self.assertFalse(test.doCleanups())68 self.assertFalse(outcome.success)69 ((_, (Type1, instance1, _)),70 (_, (Type2, instance2, _))) = reversed(outcome.errors)71 self.assertEqual((Type1, instance1), (Exception, CleanUpExc))72 self.assertEqual((Type2, instance2), (Exception, exc2))73 def testCleanupInRun(self):74 blowUp = False75 ordering = []76 class TestableTest(unittest.TestCase):77 def setUp(self):78 ordering.append('setUp')79 if blowUp:80 raise Exception('foo')81 def testNothing(self):82 ordering.append('test')83 def tearDown(self):84 ordering.append('tearDown')85 test = TestableTest('testNothing')86 def cleanup1():87 ordering.append('cleanup1')88 def cleanup2():89 ordering.append('cleanup2')90 test.addCleanup(cleanup1)91 test.addCleanup(cleanup2)92 def success(some_test):93 self.assertEqual(some_test, test)94 ordering.append('success')95 result = unittest.TestResult()96 result.addSuccess = success97 test.run(result)98 self.assertEqual(ordering, ['setUp', 'test', 'tearDown',99 'cleanup2', 'cleanup1', 'success'])100 blowUp = True101 ordering = []102 test = TestableTest('testNothing')103 test.addCleanup(cleanup1)104 test.run(result)105 self.assertEqual(ordering, ['setUp', 'cleanup1'])106 def testTestCaseDebugExecutesCleanups(self):107 ordering = []108 class TestableTest(unittest.TestCase):109 def setUp(self):110 ordering.append('setUp')111 self.addCleanup(cleanup1)112 def testNothing(self):113 ordering.append('test')114 def tearDown(self):115 ordering.append('tearDown')116 test = TestableTest('testNothing')117 def cleanup1():118 ordering.append('cleanup1')119 test.addCleanup(cleanup2)120 def cleanup2():121 ordering.append('cleanup2')122 test.debug()123 self.assertEqual(ordering, ['setUp', 'test', 'tearDown', 'cleanup1', 'cleanup2'])124class TestClassCleanup(unittest.TestCase):125 def test_addClassCleanUp(self):126 class TestableTest(unittest.TestCase):127 def testNothing(self):128 pass129 test = TestableTest('testNothing')130 self.assertEqual(test._class_cleanups, [])131 class_cleanups = []132 def class_cleanup1(*args, **kwargs):133 class_cleanups.append((3, args, kwargs))134 def class_cleanup2(*args, **kwargs):135 class_cleanups.append((4, args, kwargs))136 TestableTest.addClassCleanup(class_cleanup1, 1, 2, 3,137 four='hello', five='goodbye')138 TestableTest.addClassCleanup(class_cleanup2)139 self.assertEqual(test._class_cleanups,140 [(class_cleanup1, (1, 2, 3),141 dict(four='hello', five='goodbye')),142 (class_cleanup2, (), {})])143 TestableTest.doClassCleanups()144 self.assertEqual(class_cleanups, [(4, (), {}), (3, (1, 2, 3),145 dict(four='hello', five='goodbye'))])146 def test_run_class_cleanUp(self):147 ordering = []148 blowUp = True149 class TestableTest(unittest.TestCase):150 @classmethod151 def setUpClass(cls):152 ordering.append('setUpClass')153 cls.addClassCleanup(cleanup, ordering)154 if blowUp:155 raise Exception()156 def testNothing(self):157 ordering.append('test')158 @classmethod159 def tearDownClass(cls):160 ordering.append('tearDownClass')161 runTests(TestableTest)162 self.assertEqual(ordering, ['setUpClass', 'cleanup_good'])163 ordering = []164 blowUp = False165 runTests(TestableTest)166 self.assertEqual(ordering,167 ['setUpClass', 'test', 'tearDownClass', 'cleanup_good'])168 def test_debug_executes_classCleanUp(self):169 ordering = []170 class TestableTest(unittest.TestCase):171 @classmethod172 def setUpClass(cls):173 ordering.append('setUpClass')174 cls.addClassCleanup(cleanup, ordering)175 def testNothing(self):176 ordering.append('test')177 @classmethod178 def tearDownClass(cls):179 ordering.append('tearDownClass')180 suite = unittest.defaultTestLoader.loadTestsFromTestCase(TestableTest)181 suite.debug()182 self.assertEqual(ordering,183 ['setUpClass', 'test', 'tearDownClass', 'cleanup_good'])184 def test_doClassCleanups_with_errors_addClassCleanUp(self):185 class TestableTest(unittest.TestCase):186 def testNothing(self):187 pass188 def cleanup1():189 raise Exception('cleanup1')190 def cleanup2():191 raise Exception('cleanup2')192 TestableTest.addClassCleanup(cleanup1)193 TestableTest.addClassCleanup(cleanup2)194 with self.assertRaises(Exception) as e:195 TestableTest.doClassCleanups()196 self.assertEqual(e, 'cleanup1')197 def test_with_errors_addCleanUp(self):198 ordering = []199 class TestableTest(unittest.TestCase):200 @classmethod201 def setUpClass(cls):202 ordering.append('setUpClass')203 cls.addClassCleanup(cleanup, ordering)204 def setUp(self):205 ordering.append('setUp')206 self.addCleanup(cleanup, ordering, blowUp=True)207 def testNothing(self):208 pass209 @classmethod210 def tearDownClass(cls):211 ordering.append('tearDownClass')212 result = runTests(TestableTest)213 self.assertEqual(result.errors[0][1].splitlines()[-1],214 'Exception: CleanUpExc')215 self.assertEqual(ordering,216 ['setUpClass', 'setUp', 'cleanup_exc',217 'tearDownClass', 'cleanup_good'])218 def test_run_with_errors_addClassCleanUp(self):219 ordering = []220 class TestableTest(unittest.TestCase):221 @classmethod222 def setUpClass(cls):223 ordering.append('setUpClass')224 cls.addClassCleanup(cleanup, ordering, blowUp=True)225 def setUp(self):226 ordering.append('setUp')227 self.addCleanup(cleanup, ordering)228 def testNothing(self):229 ordering.append('test')230 @classmethod231 def tearDownClass(cls):232 ordering.append('tearDownClass')233 result = runTests(TestableTest)234 self.assertEqual(result.errors[0][1].splitlines()[-1],235 'Exception: CleanUpExc')236 self.assertEqual(ordering,237 ['setUpClass', 'setUp', 'test', 'cleanup_good',238 'tearDownClass', 'cleanup_exc'])239 def test_with_errors_in_addClassCleanup_and_setUps(self):240 ordering = []241 class_blow_up = False242 method_blow_up = False243 class TestableTest(unittest.TestCase):244 @classmethod245 def setUpClass(cls):246 ordering.append('setUpClass')247 cls.addClassCleanup(cleanup, ordering, blowUp=True)248 if class_blow_up:249 raise Exception('ClassExc')250 def setUp(self):251 ordering.append('setUp')252 if method_blow_up:253 raise Exception('MethodExc')254 def testNothing(self):255 ordering.append('test')256 @classmethod257 def tearDownClass(cls):258 ordering.append('tearDownClass')259 result = runTests(TestableTest)260 self.assertEqual(result.errors[0][1].splitlines()[-1],261 'Exception: CleanUpExc')262 self.assertEqual(ordering,263 ['setUpClass', 'setUp', 'test',264 'tearDownClass', 'cleanup_exc'])265 ordering = []266 class_blow_up = True267 method_blow_up = False268 result = runTests(TestableTest)269 self.assertEqual(result.errors[0][1].splitlines()[-1],270 'Exception: ClassExc')271 self.assertEqual(result.errors[1][1].splitlines()[-1],272 'Exception: CleanUpExc')273 self.assertEqual(ordering,274 ['setUpClass', 'cleanup_exc'])275 ordering = []276 class_blow_up = False277 method_blow_up = True278 result = runTests(TestableTest)279 self.assertEqual(result.errors[0][1].splitlines()[-1],280 'Exception: MethodExc')281 self.assertEqual(result.errors[1][1].splitlines()[-1],282 'Exception: CleanUpExc')283 self.assertEqual(ordering,284 ['setUpClass', 'setUp', 'tearDownClass',285 'cleanup_exc'])286class TestModuleCleanUp(unittest.TestCase):287 def test_add_and_do_ModuleCleanup(self):288 module_cleanups = []289 def module_cleanup1(*args, **kwargs):290 module_cleanups.append((3, args, kwargs))291 def module_cleanup2(*args, **kwargs):292 module_cleanups.append((4, args, kwargs))293 class Module(object):294 unittest.addModuleCleanup(module_cleanup1, 1, 2, 3,295 four='hello', five='goodbye')296 unittest.addModuleCleanup(module_cleanup2)297 self.assertEqual(unittest.case._module_cleanups,298 [(module_cleanup1, (1, 2, 3),299 dict(four='hello', five='goodbye')),300 (module_cleanup2, (), {})])301 unittest.case.doModuleCleanups()302 self.assertEqual(module_cleanups, [(4, (), {}), (3, (1, 2, 3),303 dict(four='hello', five='goodbye'))])304 self.assertEqual(unittest.case._module_cleanups, [])305 def test_doModuleCleanup_with_errors_in_addModuleCleanup(self):306 module_cleanups = []307 def module_cleanup_good(*args, **kwargs):308 module_cleanups.append((3, args, kwargs))309 def module_cleanup_bad(*args, **kwargs):310 raise Exception('CleanUpExc')311 class Module(object):312 unittest.addModuleCleanup(module_cleanup_good, 1, 2, 3,313 four='hello', five='goodbye')314 unittest.addModuleCleanup(module_cleanup_bad)315 self.assertEqual(unittest.case._module_cleanups,316 [(module_cleanup_good, (1, 2, 3),317 dict(four='hello', five='goodbye')),318 (module_cleanup_bad, (), {})])319 with self.assertRaises(Exception) as e:320 unittest.case.doModuleCleanups()321 self.assertEqual(str(e.exception), 'CleanUpExc')322 self.assertEqual(unittest.case._module_cleanups, [])323 def test_addModuleCleanup_arg_errors(self):324 cleanups = []325 def cleanup(*args, **kwargs):326 cleanups.append((args, kwargs))327 class Module(object):328 unittest.addModuleCleanup(cleanup, 1, 2, function='hello')329 with self.assertRaises(TypeError):330 unittest.addModuleCleanup(function=cleanup, arg='hello')331 with self.assertRaises(TypeError):332 unittest.addModuleCleanup()333 unittest.case.doModuleCleanups()334 self.assertEqual(cleanups,335 [((1, 2), {'function': 'hello'})])336 def test_run_module_cleanUp(self):337 blowUp = True338 ordering = []339 class Module(object):340 @staticmethod341 def setUpModule():342 ordering.append('setUpModule')343 unittest.addModuleCleanup(cleanup, ordering)344 if blowUp:345 raise Exception('setUpModule Exc')346 @staticmethod347 def tearDownModule():348 ordering.append('tearDownModule')349 class TestableTest(unittest.TestCase):350 @classmethod351 def setUpClass(cls):352 ordering.append('setUpClass')353 def testNothing(self):354 ordering.append('test')355 @classmethod356 def tearDownClass(cls):357 ordering.append('tearDownClass')358 TestableTest.__module__ = 'Module'359 sys.modules['Module'] = Module360 result = runTests(TestableTest)361 self.assertEqual(ordering, ['setUpModule', 'cleanup_good'])362 self.assertEqual(result.errors[0][1].splitlines()[-1],363 'Exception: setUpModule Exc')364 ordering = []365 blowUp = False366 runTests(TestableTest)367 self.assertEqual(ordering,368 ['setUpModule', 'setUpClass', 'test', 'tearDownClass',369 'tearDownModule', 'cleanup_good'])370 self.assertEqual(unittest.case._module_cleanups, [])371 def test_run_multiple_module_cleanUp(self):372 blowUp = True373 blowUp2 = False374 ordering = []375 class Module1(object):376 @staticmethod377 def setUpModule():378 ordering.append('setUpModule')379 unittest.addModuleCleanup(cleanup, ordering)380 if blowUp:381 raise Exception()382 @staticmethod383 def tearDownModule():384 ordering.append('tearDownModule')385 class Module2(object):386 @staticmethod387 def setUpModule():388 ordering.append('setUpModule2')389 unittest.addModuleCleanup(cleanup, ordering)390 if blowUp2:391 raise Exception()392 @staticmethod393 def tearDownModule():394 ordering.append('tearDownModule2')395 class TestableTest(unittest.TestCase):396 @classmethod397 def setUpClass(cls):398 ordering.append('setUpClass')399 def testNothing(self):400 ordering.append('test')401 @classmethod402 def tearDownClass(cls):403 ordering.append('tearDownClass')404 class TestableTest2(unittest.TestCase):405 @classmethod406 def setUpClass(cls):407 ordering.append('setUpClass2')408 def testNothing(self):409 ordering.append('test2')410 @classmethod411 def tearDownClass(cls):412 ordering.append('tearDownClass2')413 TestableTest.__module__ = 'Module1'414 sys.modules['Module1'] = Module1415 TestableTest2.__module__ = 'Module2'416 sys.modules['Module2'] = Module2417 runTests(TestableTest, TestableTest2)418 self.assertEqual(ordering, ['setUpModule', 'cleanup_good',419 'setUpModule2', 'setUpClass2', 'test2',420 'tearDownClass2', 'tearDownModule2',421 'cleanup_good'])422 ordering = []423 blowUp = False424 blowUp2 = True425 runTests(TestableTest, TestableTest2)426 self.assertEqual(ordering, ['setUpModule', 'setUpClass', 'test',427 'tearDownClass', 'tearDownModule',428 'cleanup_good', 'setUpModule2',429 'cleanup_good'])430 ordering = []431 blowUp = False432 blowUp2 = False433 runTests(TestableTest, TestableTest2)434 self.assertEqual(ordering,435 ['setUpModule', 'setUpClass', 'test', 'tearDownClass',436 'tearDownModule', 'cleanup_good', 'setUpModule2',437 'setUpClass2', 'test2', 'tearDownClass2',438 'tearDownModule2', 'cleanup_good'])439 self.assertEqual(unittest.case._module_cleanups, [])440 def test_debug_module_executes_cleanUp(self):441 ordering = []442 class Module(object):443 @staticmethod444 def setUpModule():445 ordering.append('setUpModule')446 unittest.addModuleCleanup(cleanup, ordering)447 @staticmethod448 def tearDownModule():449 ordering.append('tearDownModule')450 class TestableTest(unittest.TestCase):451 @classmethod452 def setUpClass(cls):453 ordering.append('setUpClass')454 def testNothing(self):455 ordering.append('test')456 @classmethod457 def tearDownClass(cls):458 ordering.append('tearDownClass')459 TestableTest.__module__ = 'Module'460 sys.modules['Module'] = Module461 suite = unittest.defaultTestLoader.loadTestsFromTestCase(TestableTest)462 suite.debug()463 self.assertEqual(ordering,464 ['setUpModule', 'setUpClass', 'test', 'tearDownClass',465 'tearDownModule', 'cleanup_good'])466 self.assertEqual(unittest.case._module_cleanups, [])467 def test_addClassCleanup_arg_errors(self):468 cleanups = []469 def cleanup(*args, **kwargs):470 cleanups.append((args, kwargs))471 class TestableTest(unittest.TestCase):472 @classmethod473 def setUpClass(cls):474 cls.addClassCleanup(cleanup, 1, 2, function=3, cls=4)475 with self.assertRaises(TypeError):476 cls.addClassCleanup(function=cleanup, arg='hello')477 def testNothing(self):478 pass479 with self.assertRaises(TypeError):480 TestableTest.addClassCleanup()481 with self.assertRaises(TypeError):482 unittest.TestCase.addCleanup(cls=TestableTest(), function=cleanup)483 runTests(TestableTest)484 self.assertEqual(cleanups,485 [((1, 2), {'function': 3, 'cls': 4})])486 def test_addCleanup_arg_errors(self):487 cleanups = []488 def cleanup(*args, **kwargs):489 cleanups.append((args, kwargs))490 class TestableTest(unittest.TestCase):491 def setUp(self2):492 self2.addCleanup(cleanup, 1, 2, function=3, self=4)493 with self.assertRaises(TypeError):494 self2.addCleanup(function=cleanup, arg='hello')495 def testNothing(self):496 pass497 with self.assertRaises(TypeError):498 TestableTest().addCleanup()499 with self.assertRaises(TypeError):500 unittest.TestCase.addCleanup(self=TestableTest(), function=cleanup)501 runTests(TestableTest)502 self.assertEqual(cleanups,503 [((1, 2), {'function': 3, 'self': 4})])504 def test_with_errors_in_addClassCleanup(self):505 ordering = []506 class Module(object):507 @staticmethod508 def setUpModule():509 ordering.append('setUpModule')510 unittest.addModuleCleanup(cleanup, ordering)511 @staticmethod512 def tearDownModule():513 ordering.append('tearDownModule')514 class TestableTest(unittest.TestCase):515 @classmethod516 def setUpClass(cls):517 ordering.append('setUpClass')518 cls.addClassCleanup(cleanup, ordering, blowUp=True)519 def testNothing(self):520 ordering.append('test')521 @classmethod522 def tearDownClass(cls):523 ordering.append('tearDownClass')524 TestableTest.__module__ = 'Module'525 sys.modules['Module'] = Module526 result = runTests(TestableTest)527 self.assertEqual(result.errors[0][1].splitlines()[-1],528 'Exception: CleanUpExc')529 self.assertEqual(ordering,530 ['setUpModule', 'setUpClass', 'test', 'tearDownClass',531 'cleanup_exc', 'tearDownModule', 'cleanup_good'])532 def test_with_errors_in_addCleanup(self):533 ordering = []534 class Module(object):535 @staticmethod536 def setUpModule():537 ordering.append('setUpModule')538 unittest.addModuleCleanup(cleanup, ordering)539 @staticmethod540 def tearDownModule():541 ordering.append('tearDownModule')542 class TestableTest(unittest.TestCase):543 def setUp(self):544 ordering.append('setUp')545 self.addCleanup(cleanup, ordering, blowUp=True)546 def testNothing(self):547 ordering.append('test')548 def tearDown(self):549 ordering.append('tearDown')550 TestableTest.__module__ = 'Module'551 sys.modules['Module'] = Module552 result = runTests(TestableTest)553 self.assertEqual(result.errors[0][1].splitlines()[-1],554 'Exception: CleanUpExc')555 self.assertEqual(ordering,556 ['setUpModule', 'setUp', 'test', 'tearDown',557 'cleanup_exc', 'tearDownModule', 'cleanup_good'])558 def test_with_errors_in_addModuleCleanup_and_setUps(self):559 ordering = []560 module_blow_up = False561 class_blow_up = False562 method_blow_up = False563 class Module(object):564 @staticmethod565 def setUpModule():566 ordering.append('setUpModule')567 unittest.addModuleCleanup(cleanup, ordering, blowUp=True)568 if module_blow_up:569 raise Exception('ModuleExc')570 @staticmethod571 def tearDownModule():572 ordering.append('tearDownModule')573 class TestableTest(unittest.TestCase):574 @classmethod575 def setUpClass(cls):576 ordering.append('setUpClass')577 if class_blow_up:578 raise Exception('ClassExc')579 def setUp(self):580 ordering.append('setUp')581 if method_blow_up:582 raise Exception('MethodExc')583 def testNothing(self):584 ordering.append('test')585 @classmethod586 def tearDownClass(cls):587 ordering.append('tearDownClass')588 TestableTest.__module__ = 'Module'589 sys.modules['Module'] = Module590 result = runTests(TestableTest)591 self.assertEqual(result.errors[0][1].splitlines()[-1],592 'Exception: CleanUpExc')593 self.assertEqual(ordering,594 ['setUpModule', 'setUpClass', 'setUp', 'test',595 'tearDownClass', 'tearDownModule',596 'cleanup_exc'])597 ordering = []598 module_blow_up = True599 class_blow_up = False600 method_blow_up = False601 result = runTests(TestableTest)602 self.assertEqual(result.errors[0][1].splitlines()[-1],603 'Exception: CleanUpExc')604 self.assertEqual(result.errors[1][1].splitlines()[-1],605 'Exception: ModuleExc')606 self.assertEqual(ordering, ['setUpModule', 'cleanup_exc'])607 ordering = []608 module_blow_up = False609 class_blow_up = True610 method_blow_up = False611 result = runTests(TestableTest)612 self.assertEqual(result.errors[0][1].splitlines()[-1],613 'Exception: ClassExc')614 self.assertEqual(result.errors[1][1].splitlines()[-1],615 'Exception: CleanUpExc')616 self.assertEqual(ordering, ['setUpModule', 'setUpClass',617 'tearDownModule', 'cleanup_exc'])618 ordering = []619 module_blow_up = False620 class_blow_up = False621 method_blow_up = True622 result = runTests(TestableTest)623 self.assertEqual(result.errors[0][1].splitlines()[-1],624 'Exception: MethodExc')625 self.assertEqual(result.errors[1][1].splitlines()[-1],626 'Exception: CleanUpExc')627 self.assertEqual(ordering, ['setUpModule', 'setUpClass', 'setUp',628 'tearDownClass', 'tearDownModule',629 'cleanup_exc'])630 def test_module_cleanUp_with_multiple_classes(self):631 ordering =[]632 def cleanup1():633 ordering.append('cleanup1')634 def cleanup2():635 ordering.append('cleanup2')636 def cleanup3():637 ordering.append('cleanup3')638 class Module(object):639 @staticmethod640 def setUpModule():641 ordering.append('setUpModule')642 unittest.addModuleCleanup(cleanup1)643 @staticmethod644 def tearDownModule():645 ordering.append('tearDownModule')646 class TestableTest(unittest.TestCase):647 def setUp(self):648 ordering.append('setUp')649 self.addCleanup(cleanup2)650 def testNothing(self):651 ordering.append('test')652 def tearDown(self):653 ordering.append('tearDown')654 class OtherTestableTest(unittest.TestCase):655 def setUp(self):656 ordering.append('setUp2')657 self.addCleanup(cleanup3)658 def testNothing(self):659 ordering.append('test2')660 def tearDown(self):661 ordering.append('tearDown2')662 TestableTest.__module__ = 'Module'663 OtherTestableTest.__module__ = 'Module'664 sys.modules['Module'] = Module665 runTests(TestableTest, OtherTestableTest)666 self.assertEqual(ordering,667 ['setUpModule', 'setUp', 'test', 'tearDown',668 'cleanup2', 'setUp2', 'test2', 'tearDown2',669 'cleanup3', 'tearDownModule', 'cleanup1'])670class Test_TextTestRunner(unittest.TestCase):671 """Tests for TextTestRunner."""672 def setUp(self):673 # clean the environment from pre-existing PYTHONWARNINGS to make674 # test_warnings results consistent675 self.pythonwarnings = os.environ.get('PYTHONWARNINGS')676 if self.pythonwarnings:677 del os.environ['PYTHONWARNINGS']678 def tearDown(self):679 # bring back pre-existing PYTHONWARNINGS if present680 if self.pythonwarnings:681 os.environ['PYTHONWARNINGS'] = self.pythonwarnings682 def test_init(self):683 runner = unittest.TextTestRunner()684 self.assertFalse(runner.failfast)685 self.assertFalse(runner.buffer)686 self.assertEqual(runner.verbosity, 1)687 self.assertEqual(runner.warnings, None)688 self.assertTrue(runner.descriptions)689 self.assertEqual(runner.resultclass, unittest.TextTestResult)690 self.assertFalse(runner.tb_locals)691 def test_multiple_inheritance(self):692 class AResult(unittest.TestResult):693 def __init__(self, stream, descriptions, verbosity):694 super(AResult, self).__init__(stream, descriptions, verbosity)695 class ATextResult(unittest.TextTestResult, AResult):696 pass697 # This used to raise an exception due to TextTestResult not passing698 # on arguments in its __init__ super call699 ATextResult(None, None, 1)700 def testBufferAndFailfast(self):701 class Test(unittest.TestCase):702 def testFoo(self):703 pass704 result = unittest.TestResult()705 runner = unittest.TextTestRunner(stream=io.StringIO(), failfast=True,706 buffer=True)707 # Use our result object708 runner._makeResult = lambda: result709 runner.run(Test('testFoo'))710 self.assertTrue(result.failfast)711 self.assertTrue(result.buffer)712 def test_locals(self):713 runner = unittest.TextTestRunner(stream=io.StringIO(), tb_locals=True)714 result = runner.run(unittest.TestSuite())715 self.assertEqual(True, result.tb_locals)716 def testRunnerRegistersResult(self):717 class Test(unittest.TestCase):718 def testFoo(self):719 pass720 originalRegisterResult = unittest.runner.registerResult721 def cleanup():722 unittest.runner.registerResult = originalRegisterResult723 self.addCleanup(cleanup)724 result = unittest.TestResult()725 runner = unittest.TextTestRunner(stream=io.StringIO())726 # Use our result object727 runner._makeResult = lambda: result728 self.wasRegistered = 0729 def fakeRegisterResult(thisResult):730 self.wasRegistered += 1731 self.assertEqual(thisResult, result)732 unittest.runner.registerResult = fakeRegisterResult733 runner.run(unittest.TestSuite())734 self.assertEqual(self.wasRegistered, 1)735 def test_works_with_result_without_startTestRun_stopTestRun(self):...

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test_lru_cache.py

Source:test_lru_cache.py Github

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...73 self.assertEqual('biz', cache['baz'])74 # This must kick out 'foo' because it was the last accessed75 cache['nub'] = 'in'76 self.assertFalse('foo' in cache)77 def test_cleanup(self):78 """Test that we can use a cleanup function."""79 cleanup_called = []80 def cleanup_func(key, val):81 cleanup_called.append((key, val))82 cache = lru_cache.LRUCache(max_cache=2, after_cleanup_count=2)83 cache.add('baz', '1', cleanup=cleanup_func)84 cache.add('foo', '2', cleanup=cleanup_func)85 cache.add('biz', '3', cleanup=cleanup_func)86 self.assertEqual([('baz', '1')], cleanup_called)87 # 'foo' is now most recent, so final cleanup will call it last88 cache['foo']89 cache.clear()90 self.assertEqual([('baz', '1'), ('biz', '3'), ('foo', '2')],91 cleanup_called)92 def test_cleanup_on_replace(self):93 """Replacing an object should cleanup the old value."""94 cleanup_called = []95 def cleanup_func(key, val):96 cleanup_called.append((key, val))97 cache = lru_cache.LRUCache(max_cache=2)98 cache.add(1, 10, cleanup=cleanup_func)99 cache.add(2, 20, cleanup=cleanup_func)100 cache.add(2, 25, cleanup=cleanup_func)101 self.assertEqual([(2, 20)], cleanup_called)102 self.assertEqual(25, cache[2])103 # Even __setitem__ should make sure cleanup() is called104 cache[2] = 26105 self.assertEqual([(2, 20), (2, 25)], cleanup_called)106 def test_len(self):107 cache = lru_cache.LRUCache(max_cache=10, after_cleanup_count=10)108 cache[1] = 10109 cache[2] = 20110 cache[3] = 30111 cache[4] = 40112 self.assertEqual(4, len(cache))113 cache[5] = 50114 cache[6] = 60115 cache[7] = 70116 cache[8] = 80117 self.assertEqual(8, len(cache))118 cache[1] = 15 # replacement119 self.assertEqual(8, len(cache))120 cache[9] = 90121 cache[10] = 100122 cache[11] = 110123 # We hit the max124 self.assertEqual(10, len(cache))125 self.assertEqual([11, 10, 9, 1, 8, 7, 6, 5, 4, 3],126 [n.key for n in cache._walk_lru()])127 def test_cleanup_shrinks_to_after_clean_count(self):128 cache = lru_cache.LRUCache(max_cache=5, after_cleanup_count=3)129 cache.add(1, 10)130 cache.add(2, 20)131 cache.add(3, 25)132 cache.add(4, 30)133 cache.add(5, 35)134 self.assertEqual(5, len(cache))135 # This will bump us over the max, which causes us to shrink down to136 # after_cleanup_cache size137 cache.add(6, 40)138 self.assertEqual(3, len(cache))139 def test_after_cleanup_larger_than_max(self):140 cache = lru_cache.LRUCache(max_cache=5, after_cleanup_count=10)141 self.assertEqual(5, cache._after_cleanup_count)142 def test_after_cleanup_none(self):143 cache = lru_cache.LRUCache(max_cache=5, after_cleanup_count=None)144 # By default _after_cleanup_size is 80% of the normal size145 self.assertEqual(4, cache._after_cleanup_count)146 def test_cleanup_2(self):147 cache = lru_cache.LRUCache(max_cache=5, after_cleanup_count=2)148 # Add these in order149 cache.add(1, 10)150 cache.add(2, 20)151 cache.add(3, 25)152 cache.add(4, 30)153 cache.add(5, 35)154 self.assertEqual(5, len(cache))155 # Force a compaction156 cache.cleanup()157 self.assertEqual(2, len(cache))158 def test_preserve_last_access_order(self):159 cache = lru_cache.LRUCache(max_cache=5)160 # Add these in order161 cache.add(1, 10)162 cache.add(2, 20)163 cache.add(3, 25)164 cache.add(4, 30)165 cache.add(5, 35)166 self.assertEqual([5, 4, 3, 2, 1], [n.key for n in cache._walk_lru()])167 # Now access some randomly168 cache[2]169 cache[5]170 cache[3]171 cache[2]172 self.assertEqual([2, 3, 5, 4, 1], [n.key for n in cache._walk_lru()])173 def test_get(self):174 cache = lru_cache.LRUCache(max_cache=5)175 cache.add(1, 10)176 cache.add(2, 20)177 self.assertEqual(20, cache.get(2))178 self.assertEqual(None, cache.get(3))179 obj = object()180 self.assertTrue(obj is cache.get(3, obj))181 self.assertEqual([2, 1], [n.key for n in cache._walk_lru()])182 self.assertEqual(10, cache.get(1))183 self.assertEqual([1, 2], [n.key for n in cache._walk_lru()])184 def test_keys(self):185 cache = lru_cache.LRUCache(max_cache=5, after_cleanup_count=5)186 cache[1] = 2187 cache[2] = 3188 cache[3] = 4189 self.assertEqual([1, 2, 3], sorted(cache.keys()))190 cache[4] = 5191 cache[5] = 6192 cache[6] = 7193 self.assertEqual([2, 3, 4, 5, 6], sorted(cache.keys()))194 def test_resize_smaller(self):195 cache = lru_cache.LRUCache(max_cache=5, after_cleanup_count=4)196 cache[1] = 2197 cache[2] = 3198 cache[3] = 4199 cache[4] = 5200 cache[5] = 6201 self.assertEqual([1, 2, 3, 4, 5], sorted(cache.keys()))202 cache[6] = 7203 self.assertEqual([3, 4, 5, 6], sorted(cache.keys()))204 # Now resize to something smaller, which triggers a cleanup205 cache.resize(max_cache=3, after_cleanup_count=2)206 self.assertEqual([5, 6], sorted(cache.keys()))207 # Adding something will use the new size208 cache[7] = 8209 self.assertEqual([5, 6, 7], sorted(cache.keys()))210 cache[8] = 9211 self.assertEqual([7, 8], sorted(cache.keys()))212 def test_resize_larger(self):213 cache = lru_cache.LRUCache(max_cache=5, after_cleanup_count=4)214 cache[1] = 2215 cache[2] = 3216 cache[3] = 4217 cache[4] = 5218 cache[5] = 6219 self.assertEqual([1, 2, 3, 4, 5], sorted(cache.keys()))220 cache[6] = 7221 self.assertEqual([3, 4, 5, 6], sorted(cache.keys()))222 cache.resize(max_cache=8, after_cleanup_count=6)223 self.assertEqual([3, 4, 5, 6], sorted(cache.keys()))224 cache[7] = 8225 cache[8] = 9226 cache[9] = 10227 cache[10] = 11228 self.assertEqual([3, 4, 5, 6, 7, 8, 9, 10], sorted(cache.keys()))229 cache[11] = 12 # triggers cleanup back to new after_cleanup_count230 self.assertEqual([6, 7, 8, 9, 10, 11], sorted(cache.keys()))231class TestLRUSizeCache(TestCase):232 def test_basic_init(self):233 cache = lru_cache.LRUSizeCache()234 self.assertEqual(2048, cache._max_cache)235 self.assertEqual(int(cache._max_size*0.8), cache._after_cleanup_size)236 self.assertEqual(0, cache._value_size)237 def test_add__null_key(self):238 cache = lru_cache.LRUSizeCache()239 self.assertRaises(ValueError, cache.add, lru_cache._null_key, 1)240 def test_add_tracks_size(self):241 cache = lru_cache.LRUSizeCache()242 self.assertEqual(0, cache._value_size)243 cache.add('my key', 'my value text')244 self.assertEqual(13, cache._value_size)245 def test_remove_tracks_size(self):246 cache = lru_cache.LRUSizeCache()247 self.assertEqual(0, cache._value_size)248 cache.add('my key', 'my value text')249 self.assertEqual(13, cache._value_size)250 node = cache._cache['my key']251 cache._remove_node(node)252 self.assertEqual(0, cache._value_size)253 def test_no_add_over_size(self):254 """Adding a large value may not be cached at all."""255 cache = lru_cache.LRUSizeCache(max_size=10, after_cleanup_size=5)256 self.assertEqual(0, cache._value_size)257 self.assertEqual({}, cache.items())258 cache.add('test', 'key')259 self.assertEqual(3, cache._value_size)260 self.assertEqual({'test': 'key'}, cache.items())261 cache.add('test2', 'key that is too big')262 self.assertEqual(3, cache._value_size)263 self.assertEqual({'test':'key'}, cache.items())264 # If we would add a key, only to cleanup and remove all cached entries,265 # then obviously that value should not be stored266 cache.add('test3', 'bigkey')267 self.assertEqual(3, cache._value_size)268 self.assertEqual({'test':'key'}, cache.items())269 cache.add('test4', 'bikey')270 self.assertEqual(3, cache._value_size)271 self.assertEqual({'test':'key'}, cache.items())272 def test_no_add_over_size_cleanup(self):273 """If a large value is not cached, we will call cleanup right away."""274 cleanup_calls = []275 def cleanup(key, value):276 cleanup_calls.append((key, value))277 cache = lru_cache.LRUSizeCache(max_size=10, after_cleanup_size=5)278 self.assertEqual(0, cache._value_size)279 self.assertEqual({}, cache.items())280 cache.add('test', 'key that is too big', cleanup=cleanup)281 # key was not added282 self.assertEqual(0, cache._value_size)283 self.assertEqual({}, cache.items())284 # and cleanup was called285 self.assertEqual([('test', 'key that is too big')], cleanup_calls)286 def test_adding_clears_cache_based_on_size(self):287 """The cache is cleared in LRU order until small enough"""288 cache = lru_cache.LRUSizeCache(max_size=20)289 cache.add('key1', 'value') # 5 chars290 cache.add('key2', 'value2') # 6 chars291 cache.add('key3', 'value23') # 7 chars292 self.assertEqual(5+6+7, cache._value_size)293 cache['key2'] # reference key2 so it gets a newer reference time294 cache.add('key4', 'value234') # 8 chars, over limit295 # We have to remove 2 keys to get back under limit296 self.assertEqual(6+8, cache._value_size)297 self.assertEqual({'key2':'value2', 'key4':'value234'},298 cache.items())299 def test_adding_clears_to_after_cleanup_size(self):300 cache = lru_cache.LRUSizeCache(max_size=20, after_cleanup_size=10)301 cache.add('key1', 'value') # 5 chars302 cache.add('key2', 'value2') # 6 chars303 cache.add('key3', 'value23') # 7 chars304 self.assertEqual(5+6+7, cache._value_size)305 cache['key2'] # reference key2 so it gets a newer reference time306 cache.add('key4', 'value234') # 8 chars, over limit307 # We have to remove 3 keys to get back under limit308 self.assertEqual(8, cache._value_size)309 self.assertEqual({'key4':'value234'}, cache.items())310 def test_custom_sizes(self):311 def size_of_list(lst):312 return sum(len(x) for x in lst)313 cache = lru_cache.LRUSizeCache(max_size=20, after_cleanup_size=10,314 compute_size=size_of_list)315 cache.add('key1', ['val', 'ue']) # 5 chars316 cache.add('key2', ['val', 'ue2']) # 6 chars317 cache.add('key3', ['val', 'ue23']) # 7 chars318 self.assertEqual(5+6+7, cache._value_size)319 cache['key2'] # reference key2 so it gets a newer reference time320 cache.add('key4', ['value', '234']) # 8 chars, over limit321 # We have to remove 3 keys to get back under limit322 self.assertEqual(8, cache._value_size)323 self.assertEqual({'key4':['value', '234']}, cache.items())324 def test_cleanup(self):325 cache = lru_cache.LRUSizeCache(max_size=20, after_cleanup_size=10)326 # Add these in order327 cache.add('key1', 'value') # 5 chars328 cache.add('key2', 'value2') # 6 chars329 cache.add('key3', 'value23') # 7 chars330 self.assertEqual(5+6+7, cache._value_size)331 cache.cleanup()332 # Only the most recent fits after cleaning up333 self.assertEqual(7, cache._value_size)334 def test_keys(self):335 cache = lru_cache.LRUSizeCache(max_size=10)336 cache[1] = 'a'337 cache[2] = 'b'338 cache[3] = 'cdef'339 self.assertEqual([1, 2, 3], sorted(cache.keys()))340 def test_resize_smaller(self):341 cache = lru_cache.LRUSizeCache(max_size=10, after_cleanup_size=9)342 cache[1] = 'abc'343 cache[2] = 'def'344 cache[3] = 'ghi'345 cache[4] = 'jkl'...

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lfcmetrics.py

Source:lfcmetrics.py Github

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1##############################################################################2#3# NAME: lfcmetrics.py4#5# FACILITY: SAM (Service Availability Monitoring)6#7# COPYRIGHT:8# Copyright (c) 2009, Members of the EGEE Collaboration.9# http://www.eu-egee.org/partners/10# Licensed under the Apache License, Version 2.0.11# http://www.apache.org/licenses/LICENSE-2.012# This software is provided "as is", without warranties13# or conditions of any kind, either express or implied.14#15# DESCRIPTION:16#17# LFC metrics.18#19# AUTHORS: Konstantin Skaburskas, CERN20#21# CREATED: 24-Aug-201022#23# NOTES:24#25# MODIFIED:26#27##############################################################################28"""29LFC metrics.30LFC metrics.31Konstantin Skaburskas <konstantin.skaburskas@cern.ch>, CERN32SAM (Service Availability Monitoring)33"""34import re35import os36import sys37import time38import signal39import commands40try:41 from gridmon import probe42 from gridmon import utils as samutils43 from threadpool import ThreadPool44 import lfc2 as lfc45except ImportError as e:46 print("UNKNOWN: Error loading modules : %s" % (e))47 sys.exit(3)48class LFCMetrics(probe.MetricGatherer):49 ns = 'org.sam'50 # Cleanup metric51 cleanup_timeout = 60*552 cleanup_file_ttl = 15*24*360053 cleanup_files_max = sys.maxint54 cleanup_nthreads = 555 cleanup_file_names = ['sam-choose-LFC',56 'sam-nag-choose',57 'sft-lcg-rm-cr',58 'sam-lcg-rm-cr',59 'SRM-put']60 def __init__(self, tuples, lfctype):61 probe.MetricGatherer.__init__(self, tuples, lfctype)62 self.cleanup_dir = '/grid/%s/SAM' % self.voName63 self.usage = """ Metrics specific parameters:64%s.LFC-Cleanup65--cleanup-timeout <sec> Cleanup timeout. (Default: %i sec)66--cleanup-dir <dir> Directory to clean. (Default: %s)67--cleanup-file-ttl <hrs> Time for a file to stay on LFC. (Default: %i hrs)68--cleanup-files-max <num> Number of files to delete at most before timeout69 kicks in. (Default: %i)70--cleanup-threads <num> Number of cleanup threads. (Default: %i)71""" % (self.ns,72 self.cleanup_timeout,73 self.cleanup_dir,74 self.cleanup_file_ttl/3600,75 self.cleanup_files_max,76 self.cleanup_nthreads)77 self.probeinfo = { 'probeName' : self.ns+'.LFC-probe',78 'probeVersion' : '0.1',79 'serviceVersion' : '>= 0.1.1'}80 self._metrics = {81 'Cleanup' : {82 'metricDescription' : "Clean test area on LFC",83 'metricLocality' : 'remote',84 'metricType' : 'status',85 'metricVersion' : '0.1',86 'cmdLineOptions' : ['cleanup-timeout=',87 'cleanup-dir=',88 'cleanup-file-ttl=',89 'cleanup-files-max=',90 'cleanup-threads=',91 ],92 'metricChildren' : []93 }94 }95 self.set_metrics(self._metrics)96 self.parse_cmd_args(tuples)97 self.make_workdir()98 self.cleanup_persist_lfns_fn = self.workdir_metric+'/lfns.db'99 def parse_args(self, opts):100 for o,v in opts:101 if o == '--cleanup-timeout':102 self.cleanup_timeout = int(v)103 elif o == '--cleanup-dir':104 self.cleanup_dir = v105 elif o == '--cleanup-file-ttl':106 self.cleanup_file_ttl = int(v)107 elif o == '--cleanup-files-max':108 self.cleanup_files_max = int(v)109 elif o == '--cleanup-threads':110 self.cleanup_nthreads = int(v)111 else:112 pass113 def metricCleanup(self):114 """Cleanup of test area on LFC.115 NOTE:116 Can't use lfc_delfilesbypattern as we need to take into account dates.117 pattern = '(%s)*' % '|'.join(self.cleanup_file_names)118 results = lfc.lfc_delfilesbypattern(self.cleanup_dir, pattern, 0)119 """120 # XXXX: lfc.S_ISDIR is not in lfc2 module. Use this magic number.121 LFC_MAGIC_FILEMODE = 33204122 status = 'OK'123 os.environ['LFC_HOST'] = self.hostName124 def persist_lfns(data):125 import pickle126 fp = open(self.cleanup_persist_lfns_fn, 'w')127 pickle.dump(data, fp)128 fp.close()129 def load_lfns():130 import pickle131 try:132 fp = open(self.cleanup_persist_lfns_fn)133 lfns = pickle.load(fp)134 fp.close()135 return lfns136 except Exception:137 return []138 def del_lfn_file(lfn):139 cmd = 'lcg-del -a %s' % lfn140 rc, out = commands.getstatusoutput(cmd)141 if rc == 0:142 return True143 else:144 if re.search('Permission denied', out, re.M):145 return False146 elif re.search('No such file or directory', out, re.M):147 return False148 else:149 'surl=$(lcg-lr lfn:$1) guid=$(lcg-lg $surl) lcg-uf $guid $surl'150 cmd = 'lcg-lr %s' % lfn151 rc, surls = commands.getstatusoutput(cmd)152 if rc == 0:153 for surl in surls.strip('\n').split('\n'):154 cmd = 'lcg-lg %s' % surl155 rc, guid = commands.getstatusoutput(cmd)156 if rc != 0:157 return False158 else:159 cmd = 'lcg-uf %s %s' % (guid, surl)160 rc, _ = commands.getstatusoutput(cmd)161 if rc != 0:162 return False163 else:164 return False165 return True166 def del_lfn_dir(dirn):167 cmd = 'lfc-rm -f -r %s' % dirn168 try:169 rc, _ = commands.getstatusoutput(cmd)170 except Exception as e:171 return False172 if rc == 0:173 return True174 else:175 return False176 T_ttl = self.cleanup_file_ttl177 dirname = self.cleanup_dir178 fnames_re = re.compile('|'.join(self.cleanup_file_names))179 dir_pt = lfc.lfc_opendir(dirname)180 if not dir_pt:181 self.prints("Couldn't open %s" % dirname)182 return 'UNKNOWN'183 global pool, tasks184 tasks = []185 pool = ThreadPool(self.cleanup_nthreads)186 def sighandler(a, b):187 global pool, tasks188 self.printd('caught signal: %s' % samutils.time_now())189 tasks = pool.dropAll()190 while 1:191 if pool.getThreadCount() == 0 and pool.getTasksCount() == 0:192 break193 time.sleep(.5)194 signal.signal(signal.SIGALRM, sighandler)195 signal.alarm(self.cleanup_timeout)196 self.printd('set timeout for %i sec' % self.cleanup_timeout)197 i_tot = 0198 i_match_name = 0199 i_match_all = 0200 global i_deleted201 i_deleted = 0202 def task_callback(val):203 global i_deleted204 i_deleted += val and 1 or 0205 t_start = time.time()206 t_stop = t_start + self.cleanup_timeout207 self.printd('initialised: %s' % samutils.time_now())208 lfns_loaded = load_lfns()209 if lfns_loaded:210 self.printd("loaded %i lfns from previous run" % len(lfns_loaded))211 i_tot += len(lfns_loaded)212 for i,lfn in enumerate(lfns_loaded[:]):213 if lfn.startswith('lfn'):214 pool.enqueueTask(del_lfn_file, lfn, task_callback)215 else:216 pool.enqueueTask(del_lfn_dir, lfn, task_callback)217 lfns_loaded[i] = 'lfn:%s' % lfn218 # first, clear 2/3 of the cache, then proceed further219 lfns_len_stop = len(lfns_loaded) / 3220 while pool.getTasksCount() > lfns_len_stop and time.time() < t_stop:221 time.sleep(2)222 while i_deleted <= self.cleanup_files_max and time.time() < t_stop:223 entry = lfc.lfc_readdirx(dir_pt)224 if not entry:225 self.printd("no more files to delete")226 break227 self.printdvm("file: %s" % entry.d_name)228 if fnames_re.match(entry.d_name):229 e_fullname = '%s/%s' % (dirname, entry.d_name)230 lfn = 'lfn:%s' % e_fullname231 if lfn in lfns_loaded:232 self.printdvm("already in local cache %s" % entry.d_name)233 continue234 if entry.mtime < time.time() - T_ttl:235 self.printdvm("match name&time: %s" % entry.d_name)236 i_match_all += 1237 if entry.filemode == LFC_MAGIC_FILEMODE:238 # assume this is a file239 pool.enqueueTask(del_lfn_file, lfn, task_callback)240 else:241 # this is a directory242 pool.enqueueTask(del_lfn_dir, e_fullname, task_callback)243 else:244 self.printdvm("match name: %s" % entry.d_name)245 i_match_name += 1246 else:247 self.printdvm("not matched: %s" % entry.d_name)248 i_tot += 1249 self.printd('finished processing: %s' % samutils.time_now())250 if len(tasks) == 0:251 tasks = pool.delTasks()252 pool.joinAll(waitForTasks=False, waitForThreads=False)253 self.printd('done with cleanup for now: time spent %i sec' % \254 (time.time() - t_start))255 if len(tasks) > 0:256 self.printd('persisting %i unprocessed lfns' % len(tasks))257 persist_lfns([x[1] for x in tasks[:]])258 else:259 try:260 os.unlink(self.cleanup_persist_lfns_fn)261 except Exception: pass262 self.printd("total %i" % i_tot)263 self.printd("match name&time %i" % i_match_all)264 self.printd("match name %i" % i_match_name)265 self.printd("deleted %i" % i_deleted)266 self.prints('total %i, match name&time %i, match name %i, deleted %i' % \267 (i_tot, i_match_all, i_match_name, i_deleted,))...

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test_async_case.py

Source:test_async_case.py Github

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...27 'asyncSetUp',28 'test',29 'asyncTearDown'])30 events.append('tearDown')31 async def on_cleanup(self):32 self.assertEqual(events, ['setUp',33 'asyncSetUp',34 'test',35 'asyncTearDown',36 'tearDown'])37 events.append('cleanup')38 test = Test("test_func")39 test.run()40 self.assertEqual(events, ['setUp',41 'asyncSetUp',42 'test',43 'asyncTearDown',44 'tearDown',45 'cleanup'])46 def test_exception_in_setup(self):47 events = []48 class Test(unittest.IsolatedAsyncioTestCase):49 async def asyncSetUp(self):50 events.append('asyncSetUp')51 raise Exception()52 async def test_func(self):53 events.append('test')54 self.addAsyncCleanup(self.on_cleanup)55 async def asyncTearDown(self):56 events.append('asyncTearDown')57 async def on_cleanup(self):58 events.append('cleanup')59 test = Test("test_func")60 test.run()61 self.assertEqual(events, ['asyncSetUp'])62 def test_exception_in_test(self):63 events = []64 class Test(unittest.IsolatedAsyncioTestCase):65 async def asyncSetUp(self):66 events.append('asyncSetUp')67 async def test_func(self):68 events.append('test')69 raise Exception()70 self.addAsyncCleanup(self.on_cleanup)71 async def asyncTearDown(self):72 events.append('asyncTearDown')73 async def on_cleanup(self):74 events.append('cleanup')75 test = Test("test_func")76 test.run()77 self.assertEqual(events, ['asyncSetUp', 'test', 'asyncTearDown'])78 def test_exception_in_test_after_adding_cleanup(self):79 events = []80 class Test(unittest.IsolatedAsyncioTestCase):81 async def asyncSetUp(self):82 events.append('asyncSetUp')83 async def test_func(self):84 events.append('test')85 self.addAsyncCleanup(self.on_cleanup)86 raise Exception()87 async def asyncTearDown(self):88 events.append('asyncTearDown')89 async def on_cleanup(self):90 events.append('cleanup')91 test = Test("test_func")92 test.run()93 self.assertEqual(events, ['asyncSetUp', 'test', 'asyncTearDown', 'cleanup'])94 def test_exception_in_tear_down(self):95 events = []96 class Test(unittest.IsolatedAsyncioTestCase):97 async def asyncSetUp(self):98 events.append('asyncSetUp')99 async def test_func(self):100 events.append('test')101 self.addAsyncCleanup(self.on_cleanup)102 async def asyncTearDown(self):103 events.append('asyncTearDown')104 raise Exception()105 async def on_cleanup(self):106 events.append('cleanup')107 test = Test("test_func")108 test.run()109 self.assertEqual(events, ['asyncSetUp', 'test', 'asyncTearDown', 'cleanup'])110 def test_exception_in_tear_clean_up(self):111 events = []112 class Test(unittest.IsolatedAsyncioTestCase):113 async def asyncSetUp(self):114 events.append('asyncSetUp')115 async def test_func(self):116 events.append('test')117 self.addAsyncCleanup(self.on_cleanup)118 async def asyncTearDown(self):119 events.append('asyncTearDown')120 async def on_cleanup(self):121 events.append('cleanup')122 raise Exception()123 test = Test("test_func")124 test.run()125 self.assertEqual(events, ['asyncSetUp', 'test', 'asyncTearDown', 'cleanup'])126 def test_cleanups_interleave_order(self):127 events = []128 class Test(unittest.IsolatedAsyncioTestCase):129 async def test_func(self):130 self.addAsyncCleanup(self.on_sync_cleanup, 1)131 self.addAsyncCleanup(self.on_async_cleanup, 2)132 self.addAsyncCleanup(self.on_sync_cleanup, 3)133 self.addAsyncCleanup(self.on_async_cleanup, 4)134 async def on_sync_cleanup(self, val):135 events.append(f'sync_cleanup {val}')136 async def on_async_cleanup(self, val):137 events.append(f'async_cleanup {val}')138 test = Test("test_func")139 test.run()140 self.assertEqual(events, ['async_cleanup 4',141 'sync_cleanup 3',142 'async_cleanup 2',143 'sync_cleanup 1'])144if __name__ == "__main__":...

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exc_util_unittest.py

Source:exc_util_unittest.py Github

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1# Copyright 2019 The Chromium Authors. All rights reserved.2# Use of this source code is governed by a BSD-style license that can be3# found in the LICENSE file.4import re5import sys6import unittest7from py_utils import exc_util8class FakeConnectionError(Exception):9 pass10class FakeDisconnectionError(Exception):11 pass12class FakeProcessingError(Exception):13 pass14class FakeCleanupError(Exception):15 pass16class FaultyClient(object):17 def __init__(self, *args):18 self.failures = set(args)19 self.called = set()20 def Connect(self):21 self.called.add('Connect')22 if FakeConnectionError in self.failures:23 raise FakeConnectionError('Oops!')24 def Process(self):25 self.called.add('Process')26 if FakeProcessingError in self.failures:27 raise FakeProcessingError('Oops!')28 @exc_util.BestEffort29 def Disconnect(self):30 self.called.add('Disconnect')31 if FakeDisconnectionError in self.failures:32 raise FakeDisconnectionError('Oops!')33 @exc_util.BestEffort34 def Cleanup(self):35 self.called.add('Cleanup')36 if FakeCleanupError in self.failures:37 raise FakeCleanupError('Oops!')38class ReraiseTests(unittest.TestCase):39 def assertLogMatches(self, pattern):40 self.assertRegexpMatches(41 sys.stderr.getvalue(), pattern) # pylint: disable=no-member42 def assertLogNotMatches(self, pattern):43 self.assertNotRegexpMatches(44 sys.stderr.getvalue(), pattern) # pylint: disable=no-member45 def testTryRaisesExceptRaises(self):46 client = FaultyClient(FakeConnectionError, FakeDisconnectionError)47 # The connection error reaches the top level, while the disconnection48 # error is logged.49 with self.assertRaises(FakeConnectionError):50 try:51 client.Connect()52 except:53 client.Disconnect()54 raise55 self.assertLogMatches(re.compile(56 r'While handling a FakeConnectionError, .* was also raised:\n'57 r'Traceback \(most recent call last\):\n'58 r'.*\n'59 r'FakeDisconnectionError: Oops!\n', re.DOTALL))60 self.assertItemsEqual(client.called, ['Connect', 'Disconnect'])61 def testTryRaisesExceptDoesnt(self):62 client = FaultyClient(FakeConnectionError)63 # The connection error reaches the top level, disconnecting did not raise64 # an exception (so nothing is logged).65 with self.assertRaises(FakeConnectionError):66 try:67 client.Connect()68 except:69 client.Disconnect()70 raise71 self.assertLogNotMatches('FakeDisconnectionError')72 self.assertItemsEqual(client.called, ['Connect', 'Disconnect'])73 def testTryPassesNoException(self):74 client = FaultyClient(FakeDisconnectionError)75 # If there is no connection error, the except clause is not called (even if76 # it would have raised an exception).77 try:78 client.Connect()79 except:80 client.Disconnect()81 raise82 self.assertLogNotMatches('FakeConnectionError')83 self.assertLogNotMatches('FakeDisconnectionError')84 self.assertItemsEqual(client.called, ['Connect'])85 def testTryRaisesFinallyRaises(self):86 worker = FaultyClient(FakeProcessingError, FakeCleanupError)87 # The processing error reaches the top level, the cleanup error is logged.88 with self.assertRaises(FakeProcessingError):89 try:90 worker.Process()91 except:92 raise # Needed for Cleanup to know if an exception is handled.93 finally:94 worker.Cleanup()95 self.assertLogMatches(re.compile(96 r'While handling a FakeProcessingError, .* was also raised:\n'97 r'Traceback \(most recent call last\):\n'98 r'.*\n'99 r'FakeCleanupError: Oops!\n', re.DOTALL))100 self.assertItemsEqual(worker.called, ['Process', 'Cleanup'])101 def testTryRaisesFinallyDoesnt(self):102 worker = FaultyClient(FakeProcessingError)103 # The processing error reaches the top level, the cleanup code runs fine.104 with self.assertRaises(FakeProcessingError):105 try:106 worker.Process()107 except:108 raise # Needed for Cleanup to know if an exception is handled.109 finally:110 worker.Cleanup()111 self.assertLogNotMatches('FakeProcessingError')112 self.assertLogNotMatches('FakeCleanupError')113 self.assertItemsEqual(worker.called, ['Process', 'Cleanup'])114 def testTryPassesFinallyRaises(self):115 worker = FaultyClient(FakeCleanupError)116 # The processing code runs fine, the cleanup code raises an exception117 # which reaches the top level.118 with self.assertRaises(FakeCleanupError):119 try:120 worker.Process()121 except:122 raise # Needed for Cleanup to know if an exception is handled.123 finally:124 worker.Cleanup()125 self.assertLogNotMatches('FakeProcessingError')126 self.assertLogNotMatches('FakeCleanupError')127 self.assertItemsEqual(worker.called, ['Process', 'Cleanup'])128 def testTryRaisesExceptRaisesFinallyRaises(self):129 worker = FaultyClient(130 FakeProcessingError, FakeDisconnectionError, FakeCleanupError)131 # Chaining try-except-finally works fine. Only the processing error reaches132 # the top level; the other two are logged.133 with self.assertRaises(FakeProcessingError):134 try:135 worker.Process()136 except:137 worker.Disconnect()138 raise139 finally:140 worker.Cleanup()141 self.assertLogMatches('FakeDisconnectionError')142 self.assertLogMatches('FakeCleanupError')...

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stress_test.py

Source:stress_test.py Github

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1"""2This script concurrently builds and migrates instances. This can be useful when3troubleshooting race-conditions in virt-layer code.4Expects:5 novarc to be sourced in the environment6Helper Script for Xen Dom0:7 # cat /tmp/destroy_cache_vdis8 #!/bin/bash9 xe vdi-list | grep "Glance Image" -C1 | grep "^uuid" | awk '{print $5}' |10 xargs -n1 -I{} xe vdi-destroy uuid={}11"""12import argparse13import contextlib14import multiprocessing15import subprocess16import sys17import time18DOM0_CLEANUP_SCRIPT = "/tmp/destroy_cache_vdis"19def run(cmd):20 ret = subprocess.call(cmd, shell=True)21 if ret != 0:22 print >> sys.stderr, "Command exited non-zero: %s" % cmd23@contextlib.contextmanager24def server_built(server_name, image_name, flavor=1, cleanup=True):25 run("nova boot --image=%(image_name)s --flavor=%(flavor)s"26 " --poll %(server_name)s" % locals())27 try:28 yield29 finally:30 if cleanup:31 run("nova delete %(server_name)s" % locals())32@contextlib.contextmanager33def snapshot_taken(server_name, snapshot_name, cleanup=True):34 run("nova image-create %(server_name)s %(snapshot_name)s"35 " --poll" % locals())36 try:37 yield38 finally:39 if cleanup:40 run("nova image-delete %(snapshot_name)s" % locals())41def migrate_server(server_name):42 run("nova migrate %(server_name)s --poll" % locals())43 cmd = "nova list | grep %(server_name)s | awk '{print $6}'" % locals()44 proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)45 stdout, stderr = proc.communicate()46 status = stdout.strip()47 if status.upper() != 'VERIFY_RESIZE':48 print >> sys.stderr, "Server %(server_name)s failed to rebuild"\49 % locals()50 return False51 # Confirm the resize52 run("nova resize-confirm %(server_name)s" % locals())53 return True54def test_migrate(context):55 count, args = context56 server_name = "server%d" % count57 cleanup = args.cleanup58 with server_built(server_name, args.image, cleanup=cleanup):59 # Migrate A -> B60 result = migrate_server(server_name)61 if not result:62 return False63 # Migrate B -> A64 return migrate_server(server_name)65def rebuild_server(server_name, snapshot_name):66 run("nova rebuild %(server_name)s %(snapshot_name)s --poll" % locals())67 cmd = "nova list | grep %(server_name)s | awk '{print $6}'" % locals()68 proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)69 stdout, stderr = proc.communicate()70 status = stdout.strip()71 if status != 'ACTIVE':72 print >> sys.stderr, "Server %(server_name)s failed to rebuild"\73 % locals()74 return False75 return True76def test_rebuild(context):77 count, args = context78 server_name = "server%d" % count79 snapshot_name = "snap%d" % count80 cleanup = args.cleanup81 with server_built(server_name, args.image, cleanup=cleanup):82 with snapshot_taken(server_name, snapshot_name, cleanup=cleanup):83 return rebuild_server(server_name, snapshot_name)84def _parse_args():85 parser = argparse.ArgumentParser(86 description='Test Nova for Race Conditions.')87 parser.add_argument('tests', metavar='TESTS', type=str, nargs='*',88 default=['rebuild', 'migrate'],89 help='tests to run: [rebuilt|migrate]')90 parser.add_argument('-i', '--image', help="image to build from",91 required=True)92 parser.add_argument('-n', '--num-runs', type=int, help="number of runs",93 default=1)94 parser.add_argument('-c', '--concurrency', type=int, default=5,95 help="number of concurrent processes")96 parser.add_argument('--no-cleanup', action='store_false', dest="cleanup",97 default=True)98 parser.add_argument('-d', '--dom0-ips',99 help="IP of dom0's to run cleanup script")100 return parser.parse_args()101def main():102 dom0_cleanup_script = DOM0_CLEANUP_SCRIPT103 args = _parse_args()104 if args.dom0_ips:105 dom0_ips = args.dom0_ips.split(',')106 else:107 dom0_ips = []108 start_time = time.time()109 batch_size = min(args.num_runs, args.concurrency)110 pool = multiprocessing.Pool(processes=args.concurrency)111 results = []112 for test in args.tests:113 test_func = globals().get("test_%s" % test)114 if not test_func:115 print >> sys.stderr, "test '%s' not found" % test116 sys.exit(1)117 contexts = [(x, args) for x in range(args.num_runs)]118 try:119 results += pool.map(test_func, contexts)120 finally:121 if args.cleanup:122 for dom0_ip in dom0_ips:123 run("ssh root@%(dom0_ip)s %(dom0_cleanup_script)s"124 % locals())125 success = all(results)126 result = "SUCCESS" if success else "FAILED"127 duration = time.time() - start_time128 print "%s, finished in %.2f secs" % (result, duration)129 sys.exit(0 if success else 1)130if __name__ == "__main__":...

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test_context.py

Source:test_context.py Github

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...24 context.AdminCleanup.validate(["a"])25 mock_manager.list_resource_names.assert_called_once_with(26 admin_required=True)27 @mock.patch("%s.manager" % BASE)28 def test_validate_no_such_cleanup(self, mock_manager):29 mock_manager.list_resource_names.return_value = set(["a", "b", "c"])30 self.assertRaises(context.NoSuchCleanupResources,31 context.AdminCleanup.validate, ["a", "d"])32 mock_manager.list_resource_names.assert_called_once_with(33 admin_required=True)34 def test_validate_invalid_config(self):35 self.assertRaises(jsonschema.ValidationError,36 context.AdminCleanup.validate, {})37 @mock.patch("%s.manager.find_resource_managers" % BASE,38 return_value=[mock.MagicMock(), mock.MagicMock()])39 @mock.patch("%s.manager.SeekAndDestroy" % BASE)40 def test_cleanup(self, mock_seek_and_destroy, mock_find_resource_managers):41 ctx = {42 "config": {"admin_cleanup": ["a", "b"]},43 "admin": mock.MagicMock(),44 "users": mock.MagicMock(),45 "task": mock.MagicMock()46 }47 admin_cleanup = context.AdminCleanup(ctx)48 admin_cleanup.setup()49 admin_cleanup.cleanup()50 mock_find_resource_managers.assert_called_once_with(["a", "b"], True)51 mock_seek_and_destroy.assert_has_calls([52 mock.call(53 mock_find_resource_managers.return_value[0],54 ctx["admin"],55 ctx["users"]),56 mock.call().exterminate(),57 mock.call(58 mock_find_resource_managers.return_value[1],59 ctx["admin"],60 ctx["users"]),61 mock.call().exterminate()62 ])63class UserCleanupTestCase(test.TestCase):64 @mock.patch("%s.manager" % BASE)65 def test_validate(self, mock_manager):66 mock_manager.list_resource_names.return_value = set(["a", "b", "c"])67 context.UserCleanup.validate(["a"])68 mock_manager.list_resource_names.assert_called_once_with(69 admin_required=False)70 @mock.patch("%s.manager" % BASE)71 def test_validate_no_such_cleanup(self, mock_manager):72 mock_manager.list_resource_names.return_value = set(["a", "b", "c"])73 self.assertRaises(context.NoSuchCleanupResources,74 context.UserCleanup.validate, ["a", "b", "d"])75 mock_manager.list_resource_names.assert_called_once_with(76 admin_required=False)77 def test_validate_invalid_config(self):78 self.assertRaises(jsonschema.ValidationError,79 context.UserCleanup.validate, {})80 @mock.patch("%s.manager.find_resource_managers" % BASE,81 return_value=[mock.MagicMock(), mock.MagicMock()])82 @mock.patch("%s.manager.SeekAndDestroy" % BASE)83 def test_cleanup(self, mock_seek_and_destroy, mock_find_resource_managers):84 ctx = {85 "config": {"cleanup": ["a", "b"]},86 "users": mock.MagicMock(),87 "task": mock.MagicMock()88 }89 admin_cleanup = context.UserCleanup(ctx)90 admin_cleanup.setup()91 admin_cleanup.cleanup()92 mock_find_resource_managers.assert_called_once_with(["a", "b"], False)93 mock_seek_and_destroy.assert_has_calls([94 mock.call(95 mock_find_resource_managers.return_value[0],96 None, ctx["users"]),97 mock.call().exterminate(),98 mock.call(99 mock_find_resource_managers.return_value[1],100 None, ctx["users"]),101 mock.call().exterminate()...

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context.py

Source:context.py Github

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...48 LOG.info(_("Couldn't find cleanup resource managers: %s")49 % missing)50 raise NoSuchCleanupResources(missing)51 @rutils.log_task_wrapper(LOG.info, _("admin resources cleanup"))52 def cleanup(self):53 manager.cleanup(names=self.config,54 admin_required=True,55 admin=self.context["admin"],56 users=self.context.get("users", []))57# NOTE(amaretskiy): Set maximum order to run this last58@context.configure(name="cleanup", order=sys.maxsize, hidden=True)59class UserCleanup(CleanupMixin, context.Context):60 """Context class for user resources cleanup."""61 @classmethod62 def validate(cls, config, non_hidden=False):63 super(UserCleanup, cls).validate(config, non_hidden)64 missing = set(config)65 missing -= manager.list_resource_names(admin_required=False)66 missing = ", ".join(missing)67 if missing:68 LOG.info(_("Couldn't find cleanup resource managers: %s")69 % missing)70 raise NoSuchCleanupResources(missing)71 @rutils.log_task_wrapper(LOG.info, _("user resources cleanup"))72 def cleanup(self):73 manager.cleanup(names=self.config,74 admin_required=False,...

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Using AI Code Generation

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1import { cleanup } from '@testing-library/react-hooks';2afterEach(cleanup);3import { cleanup } from '@testing-library/react-hooks';4afterEach(cleanup);5import React, { useState, useEffect } from 'react';6import axios from 'axios';7const useFetch = (url, options) => {8 const [response, setResponse] = useState(null);9 const [error, setError] = useState(null);10 const [isLoading, setIsLoading] = useState(false);11 useEffect(() => {12 const fetchData = async () => {13 setIsLoading(true);14 try {15 const res = await axios(url, options);16 setResponse(res.data);17 setIsLoading(false);18 } catch (err) {19 setError(err);20 }21 };22 fetchData();23 }, [url]);24 return { response, error, isLoading };25};26export default useFetch;27import React from 'react';28import useFetch from './useFetch';29const App = () => {30 const { response, error, isLoading } = useFetch(31 );32 if (isLoading) {33 return <div>Loading...</div>;34 }35 if (error) {36 return <div>Error</div>;37 }38 return (39 {response.map(post => (40 <div key={post.id}>{post.title}</div>41 ))}42 );43};44export default App;

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Using AI Code Generation

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1import { cleanup } from '@testing-library/react-hooks'2afterEach(cleanup)3import { cleanup } from '@testing-library/react-hooks'4afterEach(cleanup)5module.exports = {6}

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Using AI Code Generation

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1import { cleanup } from '@testing-library/react-hooks';2afterEach(cleanup);3import { cleanup } from '@testing-library/react-hooks';4afterEach(cleanup);5module.exports = {6};7module.exports = async function() {8 await global.__MONGOD__.stop();9};10const { cleanup } = require('@testing-library/react-hooks');11module.exports = async function() {12 await cleanup();13};

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Using AI Code Generation

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1import { cleanup } from '@testing-library/react-hooks';2afterEach(() => {3 cleanup();4});5import { cleanup } from '@testing-library/react-hooks';6afterEach(() => {7 cleanup();8});9import { cleanup } from '@testing-library/react-hooks';10afterEach(() => {11 cleanup();12});13import { cleanup } from '@testing-library/react-hooks';14afterEach(() => {15 cleanup();16});17import { cleanup } from '@testing-library/react-hooks';18afterEach(() => {19 cleanup();20});21import { cleanup } from '@testing-library/react-hooks';22afterEach(() => {23 cleanup();24});25import { cleanup } from '@testing-library/react-hooks';26afterEach(() => {27 cleanup();28});29import { cleanup } from '@testing-library/react-hooks';30afterEach(() => {31 cleanup();32});33import { cleanup } from '@testing-library/react-hooks';34afterEach(() => {35 cleanup();36});37import { cleanup } from '@testing-library/react-hooks';38afterEach(() => {39 cleanup();40});41import { cleanup } from '@testing-library/react-hooks';42afterEach(() => {43 cleanup();44});45import { cleanup } from '@testing-library/react-hooks';46afterEach(() => {47 cleanup();48});49import { cleanup } from '@testing-library/react-hooks';50afterEach(() => {51 cleanup();52});

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Using AI Code Generation

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1import { cleanup } from '@testing-library/react-hooks'2import { cleanup } from '@testing-library/react'3import { cleanup } from '@testing-library/dom'4import { cleanup } from '@testing-library/vue'5import { cleanup } from '@testing-library/react-hooks'6import { cleanup } from '@testing-library/react'7import { cleanup } from '@testing-library/dom'8import { cleanup } from '@testing-library/vue'9import { cleanup } from '@testing-library/react-hooks'10import { cleanup } from '@testing-library/react'11import { cleanup } from '@testing-library/dom'12import { cleanup } from '@testing-library/vue'13import { cleanup } from '@testing-library/react-hooks'14import { cleanup } from '@testing-library/react'15import { cleanup } from '@testing-library/dom'16import { cleanup } from '@testing-library/vue'17import { cleanup } from '@testing-library/react-hooks'18import { cleanup } from '@testing-library/react'19import { cleanup } from '@testing-library/dom'20import { cleanup } from '@testing-library/vue'21import { cleanup } from '@testing-library/react-hooks'22import { cleanup } from '@testing-library/react'23import {

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Using AI Code Generation

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1import { cleanup } from '@testing-library/react-hooks';2afterEach(cleanup);3import { cleanup } from '@testing-library/react-hooks';4afterEach(cleanup);5import { cleanup } from '@testing-library/react-hooks';6afterEach(cleanup);7module.exports = {8};9module.exports = {10};11module.exports = {12};13module.exports = {14};15module.exports = {16};17module.exports = {18};

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Using AI Code Generation

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1import React from 'react';2import { renderHook } from '@testing-library/react-hooks';3import useCounter from './useCounter';4describe('useCounter', () => {5 afterEach(() => {6 cleanup();7 });8 test('should increment the counter', () => {9 const { result } = renderHook(() => useCounter());10 expect(result.current.count).toBe(0);11 act(() => {12 result.current.increment();13 });14 expect(result.current.count).toBe(1);15 });16});17import { useState } from 'react';18const useCounter = () => {19 const [count, setCount] = useState(0);20 const increment = () => {21 setCount(count + 1);22 };23 return {24 };25};26export default useCounter;27import { cleanup } from '@testing-library/react-hooks';28export default cleanup;29import React from 'react';30import { renderHook } from '@testing-library/react-hooks';31import useCounter from './useCounter';32import cleanup from './cleanup';33describe('useCounter', () => {34 afterEach(() => {35 cleanup();36 });37 test('should increment the counter', () => {38 const { result } = renderHook(() => useCounter());39 expect(result.current.count).toBe(0);40 act(() => {41 result.current.increment();42 });43 expect(result.current.count).toBe(1);44 });45});46import { useState } from 'react';47const useCounter = () => {48 const [count, setCount] = useState(0);49 const increment = () => {50 setCount(count + 1);51 };52 return {53 };54};55export default useCounter;56import { cleanup } from '@testing-library/react-hooks';57export default cleanup;

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Using AI Code Generation

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1import {cleanup} from '@testing-library/react-hooks'2import {cleanup} from '@testing-library/react-hooks'3import {cleanup} from '@testing-library/react-hooks'4import {cleanup} from '@testing-library/react-hooks'5import {cleanup} from '@testing-library/react-hooks'6import {cleanup} from '@testing-library/react-hooks'7import {cleanup} from '@testing-library/react-hooks'8import {cleanup} from '@testing-library/react-hooks'9import {cleanup} from '@testing-library/react-hooks'10import {cleanup} from '@testing-library/react-hooks'11import {cleanup} from '@testing-library/react-hooks'12import {cleanup} from '@testing-library/react-hooks'13import {cleanup} from '@testing-library/react-hooks'14import {cleanup} from '@testing-library/react-hooks'15import {cleanup} from '@testing-library/react-hooks'16import {cleanup} from '@testing-library/react-hooks'17import {cleanup} from '@testing-library/react-hooks'18import {cleanup} from '@testing-library/react-hooks'19import {cleanup} from '@testing-library/react-hooks'

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Using AI Code Generation

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1import { cleanup } from '@testing-library/react-hooks';2import { renderHook } from '@testing-library/react-hooks';3import useFetch from './useFetch';4afterEach(cleanup);5test('should return data when fetch is successful', async () => {6 const response = {7 data: {8 },9 };10 global.fetch = jest.fn(() => Promise.resolve(response));11 const { result, waitForNextUpdate } = renderHook(() => useFetch(url));12 await waitForNextUpdate();13 expect(result.current.data).toEqual(response.data);14});15import { useState, useEffect } from 'react';16const useFetch = (url) => {17 const [data, setData] = useState(null);18 const [error, setError] = useState(null);19 useEffect(() => {20 const fetchData = async () => {21 try {22 const response = await fetch(url);23 const json = await response.json();24 setData(json);25 } catch (err) {26 setError(err);27 }28 };29 fetchData();30 }, [url]);31 return { data, error };32};33export default useFetch;

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