import io
import sys
import unittest
def resultFactory(*_):
return unittest.TestResult()
class TestSetups(unittest.TestCase):
def getRunner(self):
return unittest.TextTestRunner(resultclass=resultFactory,
stream=io.StringIO())
def runTests(self, *cases):
suite = unittest.TestSuite()
for case in cases:
tests = unittest.defaultTestLoader.loadTestsFromTestCase(case)
suite.addTests(tests)
runner = self.getRunner()
# creating a nested suite exposes some potential bugs
realSuite = unittest.TestSuite()
realSuite.addTest(suite)
# adding empty suites to the end exposes potential bugs
suite.addTest(unittest.TestSuite())
realSuite.addTest(unittest.TestSuite())
return runner.run(realSuite)
def test_setup_class(self):
class Test(unittest.TestCase):
setUpCalled = 0
@classmethod
def setUpClass(cls):
Test.setUpCalled += 1
unittest.TestCase.setUpClass()
def test_one(self):
pass
def test_two(self):
pass
result = self.runTests(Test)
self.assertEqual(Test.setUpCalled, 1)
self.assertEqual(result.testsRun, 2)
self.assertEqual(len(result.errors), 0)
def test_teardown_class(self):
class Test(unittest.TestCase):
tearDownCalled = 0
@classmethod
def tearDownClass(cls):
Test.tearDownCalled += 1
unittest.TestCase.tearDownClass()
def test_one(self):
pass
def test_two(self):
pass
result = self.runTests(Test)
self.assertEqual(Test.tearDownCalled, 1)
self.assertEqual(result.testsRun, 2)
self.assertEqual(len(result.errors), 0)
def test_teardown_class_two_classes(self):
class Test(unittest.TestCase):
tearDownCalled = 0
@classmethod
def tearDownClass(cls):
Test.tearDownCalled += 1
unittest.TestCase.tearDownClass()
def test_one(self):
pass
def test_two(self):
pass
class Test2(unittest.TestCase):
tearDownCalled = 0
@classmethod
def tearDownClass(cls):
Test2.tearDownCalled += 1
unittest.TestCase.tearDownClass()
def test_one(self):
pass
def test_two(self):
pass
result = self.runTests(Test, Test2)
self.assertEqual(Test.tearDownCalled, 1)
self.assertEqual(Test2.tearDownCalled, 1)
self.assertEqual(result.testsRun, 4)
self.assertEqual(len(result.errors), 0)
def test_error_in_setupclass(self):
class BrokenTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
raise TypeError('foo')
def test_one(self):
pass
def test_two(self):
pass
result = self.runTests(BrokenTest)
self.assertEqual(result.testsRun, 0)
self.assertEqual(len(result.errors), 1)
error, _ = result.errors[0]
self.assertEqual(str(error),
'setUpClass (%s.%s)' % (__name__, BrokenTest.__qualname__))
def test_error_in_teardown_class(self):
class Test(unittest.TestCase):
tornDown = 0
@classmethod
def tearDownClass(cls):
Test.tornDown += 1
raise TypeError('foo')
def test_one(self):
pass
def test_two(self):
pass
class Test2(unittest.TestCase):
tornDown = 0
@classmethod
def tearDownClass(cls):
Test2.tornDown += 1
raise TypeError('foo')
def test_one(self):
pass
def test_two(self):
pass
result = self.runTests(Test, Test2)
self.assertEqual(result.testsRun, 4)
self.assertEqual(len(result.errors), 2)
self.assertEqual(Test.tornDown, 1)
self.assertEqual(Test2.tornDown, 1)
error, _ = result.errors[0]
self.assertEqual(str(error),
'tearDownClass (%s.%s)' % (__name__, Test.__qualname__))
def test_class_not_torndown_when_setup_fails(self):
class Test(unittest.TestCase):
tornDown = False
@classmethod
def setUpClass(cls):
raise TypeError
@classmethod
def tearDownClass(cls):
Test.tornDown = True
raise TypeError('foo')
def test_one(self):
pass
self.runTests(Test)
self.assertFalse(Test.tornDown)
def test_class_not_setup_or_torndown_when_skipped(self):
class Test(unittest.TestCase):
classSetUp = False
tornDown = False
@classmethod
def setUpClass(cls):
Test.classSetUp = True
@classmethod
def tearDownClass(cls):
Test.tornDown = True
def test_one(self):
pass
Test = unittest.skip("hop")(Test)
self.runTests(Test)
self.assertFalse(Test.classSetUp)
self.assertFalse(Test.tornDown)
def test_setup_teardown_order_with_pathological_suite(self):
results = []
class Module1(object):
@staticmethod
def setUpModule():
results.append('Module1.setUpModule')
@staticmethod
def tearDownModule():
results.append('Module1.tearDownModule')
class Module2(object):
@staticmethod
def setUpModule():
results.append('Module2.setUpModule')
@staticmethod
def tearDownModule():
results.append('Module2.tearDownModule')
class Test1(unittest.TestCase):
@classmethod
def setUpClass(cls):
results.append('setup 1')
@classmethod
def tearDownClass(cls):
results.append('teardown 1')
def testOne(self):
results.append('Test1.testOne')
def testTwo(self):
results.append('Test1.testTwo')
class Test2(unittest.TestCase):
@classmethod
def setUpClass(cls):
results.append('setup 2')
@classmethod
def tearDownClass(cls):
results.append('teardown 2')
def testOne(self):
results.append('Test2.testOne')
def testTwo(self):
results.append('Test2.testTwo')
class Test3(unittest.TestCase):
@classmethod
def setUpClass(cls):
results.append('setup 3')
@classmethod
def tearDownClass(cls):
results.append('teardown 3')
def testOne(self):
results.append('Test3.testOne')
def testTwo(self):
results.append('Test3.testTwo')
Test1.__module__ = Test2.__module__ = 'Module'
Test3.__module__ = 'Module2'
sys.modules['Module'] = Module1
sys.modules['Module2'] = Module2
first = unittest.TestSuite((Test1('testOne'),))
second = unittest.TestSuite((Test1('testTwo'),))
third = unittest.TestSuite((Test2('testOne'),))
fourth = unittest.TestSuite((Test2('testTwo'),))
fifth = unittest.TestSuite((Test3('testOne'),))
sixth = unittest.TestSuite((Test3('testTwo'),))
suite = unittest.TestSuite((first, second, third, fourth, fifth, sixth))
runner = self.getRunner()
result = runner.run(suite)
self.assertEqual(result.testsRun, 6)
self.assertEqual(len(result.errors), 0)
self.assertEqual(results,
['Module1.setUpModule', 'setup 1',
'Test1.testOne', 'Test1.testTwo', 'teardown 1',
'setup 2', 'Test2.testOne', 'Test2.testTwo',
'teardown 2', 'Module1.tearDownModule',
'Module2.setUpModule', 'setup 3',
'Test3.testOne', 'Test3.testTwo',
'teardown 3', 'Module2.tearDownModule'])
def test_setup_module(self):
class Module(object):
moduleSetup = 0
@staticmethod
def setUpModule():
Module.moduleSetup += 1
class Test(unittest.TestCase):
def test_one(self):
pass
def test_two(self):
pass
Test.__module__ = 'Module'
sys.modules['Module'] = Module
result = self.runTests(Test)
self.assertEqual(Module.moduleSetup, 1)
self.assertEqual(result.testsRun, 2)
self.assertEqual(len(result.errors), 0)
def test_error_in_setup_module(self):
class Module(object):
moduleSetup = 0
moduleTornDown = 0
@staticmethod
def setUpModule():
Module.moduleSetup += 1
raise TypeError('foo')
@staticmethod
def tearDownModule():
Module.moduleTornDown += 1
class Test(unittest.TestCase):
classSetUp = False
classTornDown = False
@classmethod
def setUpClass(cls):
Test.classSetUp = True
@classmethod
def tearDownClass(cls):
Test.classTornDown = True
def test_one(self):
pass
def test_two(self):
pass
class Test2(unittest.TestCase):
def test_one(self):
pass
def test_two(self):
pass
Test.__module__ = 'Module'
Test2.__module__ = 'Module'
sys.modules['Module'] = Module
result = self.runTests(Test, Test2)
self.assertEqual(Module.moduleSetup, 1)
self.assertEqual(Module.moduleTornDown, 0)
self.assertEqual(result.testsRun, 0)
self.assertFalse(Test.classSetUp)
self.assertFalse(Test.classTornDown)
self.assertEqual(len(result.errors), 1)
error, _ = result.errors[0]
self.assertEqual(str(error), 'setUpModule (Module)')
def test_testcase_with_missing_module(self):
class Test(unittest.TestCase):
def test_one(self):
pass
def test_two(self):
pass
Test.__module__ = 'Module'
sys.modules.pop('Module', None)
result = self.runTests(Test)
self.assertEqual(result.testsRun, 2)
def test_teardown_module(self):
class Module(object):
moduleTornDown = 0
@staticmethod
def tearDownModule():
Module.moduleTornDown += 1
class Test(unittest.TestCase):
def test_one(self):
pass
def test_two(self):
pass
Test.__module__ = 'Module'
sys.modules['Module'] = Module
result = self.runTests(Test)
self.assertEqual(Module.moduleTornDown, 1)
self.assertEqual(result.testsRun, 2)
self.assertEqual(len(result.errors), 0)
def test_error_in_teardown_module(self):
class Module(object):
moduleTornDown = 0
@staticmethod
def tearDownModule():
Module.moduleTornDown += 1
raise TypeError('foo')
class Test(unittest.TestCase):
classSetUp = False
classTornDown = False
@classmethod
def setUpClass(cls):
Test.classSetUp = True
@classmethod
def tearDownClass(cls):
Test.classTornDown = True
def test_one(self):
pass
def test_two(self):
pass
class Test2(unittest.TestCase):
def test_one(self):
pass
def test_two(self):
pass
Test.__module__ = 'Module'
Test2.__module__ = 'Module'
sys.modules['Module'] = Module
result = self.runTests(Test, Test2)
self.assertEqual(Module.moduleTornDown, 1)
self.assertEqual(result.testsRun, 4)
self.assertTrue(Test.classSetUp)
self.assertTrue(Test.classTornDown)
self.assertEqual(len(result.errors), 1)
error, _ = result.errors[0]
self.assertEqual(str(error), 'tearDownModule (Module)')
def test_skiptest_in_setupclass(self):
class Test(unittest.TestCase):
@classmethod
def setUpClass(cls):
raise unittest.SkipTest('foo')
def test_one(self):
pass
def test_two(self):
pass
result = self.runTests(Test)
self.assertEqual(result.testsRun, 0)
self.assertEqual(len(result.errors), 0)
self.assertEqual(len(result.skipped), 1)
skipped = result.skipped[0][0]
self.assertEqual(str(skipped),
'setUpClass (%s.%s)' % (__name__, Test.__qualname__))
def test_skiptest_in_setupmodule(self):
class Test(unittest.TestCase):
def test_one(self):
pass
def test_two(self):
pass
class Module(object):
@staticmethod
def setUpModule():
raise unittest.SkipTest('foo')
Test.__module__ = 'Module'
sys.modules['Module'] = Module
result = self.runTests(Test)
self.assertEqual(result.testsRun, 0)
self.assertEqual(len(result.errors), 0)
self.assertEqual(len(result.skipped), 1)
skipped = result.skipped[0][0]
self.assertEqual(str(skipped), 'setUpModule (Module)')
def test_suite_debug_executes_setups_and_teardowns(self):
ordering = []
class Module(object):
@staticmethod
def setUpModule():
ordering.append('setUpModule')
@staticmethod
def tearDownModule():
ordering.append('tearDownModule')
class Test(unittest.TestCase):
@classmethod
def setUpClass(cls):
ordering.append('setUpClass')
@classmethod
def tearDownClass(cls):
ordering.append('tearDownClass')
def test_something(self):
ordering.append('test_something')
Test.__module__ = 'Module'
sys.modules['Module'] = Module
suite = unittest.defaultTestLoader.loadTestsFromTestCase(Test)
suite.debug()
expectedOrder = ['setUpModule', 'setUpClass', 'test_something', 'tearDownClass', 'tearDownModule']
self.assertEqual(ordering, expectedOrder)
def test_suite_debug_propagates_exceptions(self):
class Module(object):
@staticmethod
def setUpModule():
if phase == 0:
raise Exception('setUpModule')
@staticmethod
def tearDownModule():
if phase == 1:
raise Exception('tearDownModule')
class Test(unittest.TestCase):
@classmethod
def setUpClass(cls):
if phase == 2:
raise Exception('setUpClass')
@classmethod
def tearDownClass(cls):
if phase == 3:
raise Exception('tearDownClass')
def test_something(self):
if phase == 4:
raise Exception('test_something')
Test.__module__ = 'Module'
sys.modules['Module'] = Module
messages = ('setUpModule', 'tearDownModule', 'setUpClass', 'tearDownClass', 'test_something')
for phase, msg in enumerate(messages):
_suite = unittest.defaultTestLoader.loadTestsFromTestCase(Test)
suite = unittest.TestSuite([_suite])
with self.assertRaisesRegex(Exception, msg):
suite.debug()
if __name__ == '__main__':
unittest.main()