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-rw-r--r--Lib/unittest/test/test_case.py1270
1 files changed, 1270 insertions, 0 deletions
diff --git a/Lib/unittest/test/test_case.py b/Lib/unittest/test/test_case.py
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index 0000000..c74a539
--- /dev/null
+++ b/Lib/unittest/test/test_case.py
@@ -0,0 +1,1270 @@
+import difflib
+import pprint
+import pickle
+import re
+import sys
+import warnings
+import inspect
+
+from copy import deepcopy
+from test import support
+
+import unittest
+
+from .support import (
+ TestEquality, TestHashing, LoggingResult,
+ ResultWithNoStartTestRunStopTestRun
+)
+
+
+class Test(object):
+ "Keep these TestCase classes out of the main namespace"
+
+ class Foo(unittest.TestCase):
+ def runTest(self): pass
+ def test1(self): pass
+
+ class Bar(Foo):
+ def test2(self): pass
+
+ class LoggingTestCase(unittest.TestCase):
+ """A test case which logs its calls."""
+
+ def __init__(self, events):
+ super(Test.LoggingTestCase, self).__init__('test')
+ self.events = events
+
+ def setUp(self):
+ self.events.append('setUp')
+
+ def test(self):
+ self.events.append('test')
+
+ def tearDown(self):
+ self.events.append('tearDown')
+
+
+class Test_TestCase(unittest.TestCase, TestEquality, TestHashing):
+
+ ### Set up attributes used by inherited tests
+ ################################################################
+
+ # Used by TestHashing.test_hash and TestEquality.test_eq
+ eq_pairs = [(Test.Foo('test1'), Test.Foo('test1'))]
+
+ # Used by TestEquality.test_ne
+ ne_pairs = [(Test.Foo('test1'), Test.Foo('runTest')),
+ (Test.Foo('test1'), Test.Bar('test1')),
+ (Test.Foo('test1'), Test.Bar('test2'))]
+
+ ################################################################
+ ### /Set up attributes used by inherited tests
+
+
+ # "class TestCase([methodName])"
+ # ...
+ # "Each instance of TestCase will run a single test method: the
+ # method named methodName."
+ # ...
+ # "methodName defaults to "runTest"."
+ #
+ # Make sure it really is optional, and that it defaults to the proper
+ # thing.
+ def test_init__no_test_name(self):
+ class Test(unittest.TestCase):
+ def runTest(self): raise MyException()
+ def test(self): pass
+
+ self.assertEqual(Test().id()[-13:], '.Test.runTest')
+
+ # test that TestCase can be instantiated with no args
+ # primarily for use at the interactive interpreter
+ test = unittest.TestCase()
+ test.assertEqual(3, 3)
+ with test.assertRaises(test.failureException):
+ test.assertEqual(3, 2)
+
+ with self.assertRaises(AttributeError):
+ test.run()
+
+ # "class TestCase([methodName])"
+ # ...
+ # "Each instance of TestCase will run a single test method: the
+ # method named methodName."
+ def test_init__test_name__valid(self):
+ class Test(unittest.TestCase):
+ def runTest(self): raise MyException()
+ def test(self): pass
+
+ self.assertEqual(Test('test').id()[-10:], '.Test.test')
+
+ # "class TestCase([methodName])"
+ # ...
+ # "Each instance of TestCase will run a single test method: the
+ # method named methodName."
+ def test_init__test_name__invalid(self):
+ class Test(unittest.TestCase):
+ def runTest(self): raise MyException()
+ def test(self): pass
+
+ try:
+ Test('testfoo')
+ except ValueError:
+ pass
+ else:
+ self.fail("Failed to raise ValueError")
+
+ # "Return the number of tests represented by the this test object. For
+ # TestCase instances, this will always be 1"
+ def test_countTestCases(self):
+ class Foo(unittest.TestCase):
+ def test(self): pass
+
+ self.assertEqual(Foo('test').countTestCases(), 1)
+
+ # "Return the default type of test result object to be used to run this
+ # test. For TestCase instances, this will always be
+ # unittest.TestResult; subclasses of TestCase should
+ # override this as necessary."
+ def test_defaultTestResult(self):
+ class Foo(unittest.TestCase):
+ def runTest(self):
+ pass
+
+ result = Foo().defaultTestResult()
+ self.assertEqual(type(result), unittest.TestResult)
+
+ # "When a setUp() method is defined, the test runner will run that method
+ # prior to each test. Likewise, if a tearDown() method is defined, the
+ # test runner will invoke that method after each test. In the example,
+ # setUp() was used to create a fresh sequence for each test."
+ #
+ # Make sure the proper call order is maintained, even if setUp() raises
+ # an exception.
+ def test_run_call_order__error_in_setUp(self):
+ events = []
+ result = LoggingResult(events)
+
+ class Foo(Test.LoggingTestCase):
+ def setUp(self):
+ super(Foo, self).setUp()
+ raise RuntimeError('raised by Foo.setUp')
+
+ Foo(events).run(result)
+ expected = ['startTest', 'setUp', 'addError', 'stopTest']
+ self.assertEqual(events, expected)
+
+ # "With a temporary result stopTestRun is called when setUp errors.
+ def test_run_call_order__error_in_setUp_default_result(self):
+ events = []
+
+ class Foo(Test.LoggingTestCase):
+ def defaultTestResult(self):
+ return LoggingResult(self.events)
+
+ def setUp(self):
+ super(Foo, self).setUp()
+ raise RuntimeError('raised by Foo.setUp')
+
+ Foo(events).run()
+ expected = ['startTestRun', 'startTest', 'setUp', 'addError',
+ 'stopTest', 'stopTestRun']
+ self.assertEqual(events, expected)
+
+ # "When a setUp() method is defined, the test runner will run that method
+ # prior to each test. Likewise, if a tearDown() method is defined, the
+ # test runner will invoke that method after each test. In the example,
+ # setUp() was used to create a fresh sequence for each test."
+ #
+ # Make sure the proper call order is maintained, even if the test raises
+ # an error (as opposed to a failure).
+ def test_run_call_order__error_in_test(self):
+ events = []
+ result = LoggingResult(events)
+
+ class Foo(Test.LoggingTestCase):
+ def test(self):
+ super(Foo, self).test()
+ raise RuntimeError('raised by Foo.test')
+
+ expected = ['startTest', 'setUp', 'test', 'tearDown',
+ 'addError', 'stopTest']
+ Foo(events).run(result)
+ self.assertEqual(events, expected)
+
+ # "With a default result, an error in the test still results in stopTestRun
+ # being called."
+ def test_run_call_order__error_in_test_default_result(self):
+ events = []
+
+ class Foo(Test.LoggingTestCase):
+ def defaultTestResult(self):
+ return LoggingResult(self.events)
+
+ def test(self):
+ super(Foo, self).test()
+ raise RuntimeError('raised by Foo.test')
+
+ expected = ['startTestRun', 'startTest', 'setUp', 'test',
+ 'tearDown', 'addError', 'stopTest', 'stopTestRun']
+ Foo(events).run()
+ self.assertEqual(events, expected)
+
+ # "When a setUp() method is defined, the test runner will run that method
+ # prior to each test. Likewise, if a tearDown() method is defined, the
+ # test runner will invoke that method after each test. In the example,
+ # setUp() was used to create a fresh sequence for each test."
+ #
+ # Make sure the proper call order is maintained, even if the test signals
+ # a failure (as opposed to an error).
+ def test_run_call_order__failure_in_test(self):
+ events = []
+ result = LoggingResult(events)
+
+ class Foo(Test.LoggingTestCase):
+ def test(self):
+ super(Foo, self).test()
+ self.fail('raised by Foo.test')
+
+ expected = ['startTest', 'setUp', 'test', 'tearDown',
+ 'addFailure', 'stopTest']
+ Foo(events).run(result)
+ self.assertEqual(events, expected)
+
+ # "When a test fails with a default result stopTestRun is still called."
+ def test_run_call_order__failure_in_test_default_result(self):
+
+ class Foo(Test.LoggingTestCase):
+ def defaultTestResult(self):
+ return LoggingResult(self.events)
+ def test(self):
+ super(Foo, self).test()
+ self.fail('raised by Foo.test')
+
+ expected = ['startTestRun', 'startTest', 'setUp', 'test',
+ 'tearDown', 'addFailure', 'stopTest', 'stopTestRun']
+ events = []
+ Foo(events).run()
+ self.assertEqual(events, expected)
+
+ # "When a setUp() method is defined, the test runner will run that method
+ # prior to each test. Likewise, if a tearDown() method is defined, the
+ # test runner will invoke that method after each test. In the example,
+ # setUp() was used to create a fresh sequence for each test."
+ #
+ # Make sure the proper call order is maintained, even if tearDown() raises
+ # an exception.
+ def test_run_call_order__error_in_tearDown(self):
+ events = []
+ result = LoggingResult(events)
+
+ class Foo(Test.LoggingTestCase):
+ def tearDown(self):
+ super(Foo, self).tearDown()
+ raise RuntimeError('raised by Foo.tearDown')
+
+ Foo(events).run(result)
+ expected = ['startTest', 'setUp', 'test', 'tearDown', 'addError',
+ 'stopTest']
+ self.assertEqual(events, expected)
+
+ # "When tearDown errors with a default result stopTestRun is still called."
+ def test_run_call_order__error_in_tearDown_default_result(self):
+
+ class Foo(Test.LoggingTestCase):
+ def defaultTestResult(self):
+ return LoggingResult(self.events)
+ def tearDown(self):
+ super(Foo, self).tearDown()
+ raise RuntimeError('raised by Foo.tearDown')
+
+ events = []
+ Foo(events).run()
+ expected = ['startTestRun', 'startTest', 'setUp', 'test', 'tearDown',
+ 'addError', 'stopTest', 'stopTestRun']
+ self.assertEqual(events, expected)
+
+ # "TestCase.run() still works when the defaultTestResult is a TestResult
+ # that does not support startTestRun and stopTestRun.
+ def test_run_call_order_default_result(self):
+
+ class Foo(unittest.TestCase):
+ def defaultTestResult(self):
+ return ResultWithNoStartTestRunStopTestRun()
+ def test(self):
+ pass
+
+ Foo('test').run()
+
+ # "This class attribute gives the exception raised by the test() method.
+ # If a test framework needs to use a specialized exception, possibly to
+ # carry additional information, it must subclass this exception in
+ # order to ``play fair'' with the framework. The initial value of this
+ # attribute is AssertionError"
+ def test_failureException__default(self):
+ class Foo(unittest.TestCase):
+ def test(self):
+ pass
+
+ self.assertTrue(Foo('test').failureException is AssertionError)
+
+ # "This class attribute gives the exception raised by the test() method.
+ # If a test framework needs to use a specialized exception, possibly to
+ # carry additional information, it must subclass this exception in
+ # order to ``play fair'' with the framework."
+ #
+ # Make sure TestCase.run() respects the designated failureException
+ def test_failureException__subclassing__explicit_raise(self):
+ events = []
+ result = LoggingResult(events)
+
+ class Foo(unittest.TestCase):
+ def test(self):
+ raise RuntimeError()
+
+ failureException = RuntimeError
+
+ self.assertTrue(Foo('test').failureException is RuntimeError)
+
+
+ Foo('test').run(result)
+ expected = ['startTest', 'addFailure', 'stopTest']
+ self.assertEqual(events, expected)
+
+ # "This class attribute gives the exception raised by the test() method.
+ # If a test framework needs to use a specialized exception, possibly to
+ # carry additional information, it must subclass this exception in
+ # order to ``play fair'' with the framework."
+ #
+ # Make sure TestCase.run() respects the designated failureException
+ def test_failureException__subclassing__implicit_raise(self):
+ events = []
+ result = LoggingResult(events)
+
+ class Foo(unittest.TestCase):
+ def test(self):
+ self.fail("foo")
+
+ failureException = RuntimeError
+
+ self.assertTrue(Foo('test').failureException is RuntimeError)
+
+
+ Foo('test').run(result)
+ expected = ['startTest', 'addFailure', 'stopTest']
+ self.assertEqual(events, expected)
+
+ # "The default implementation does nothing."
+ def test_setUp(self):
+ class Foo(unittest.TestCase):
+ def runTest(self):
+ pass
+
+ # ... and nothing should happen
+ Foo().setUp()
+
+ # "The default implementation does nothing."
+ def test_tearDown(self):
+ class Foo(unittest.TestCase):
+ def runTest(self):
+ pass
+
+ # ... and nothing should happen
+ Foo().tearDown()
+
+ # "Return a string identifying the specific test case."
+ #
+ # Because of the vague nature of the docs, I'm not going to lock this
+ # test down too much. Really all that can be asserted is that the id()
+ # will be a string (either 8-byte or unicode -- again, because the docs
+ # just say "string")
+ def test_id(self):
+ class Foo(unittest.TestCase):
+ def runTest(self):
+ pass
+
+ self.assertIsInstance(Foo().id(), str)
+
+
+ # "If result is omitted or None, a temporary result object is created
+ # and used, but is not made available to the caller. As TestCase owns the
+ # temporary result startTestRun and stopTestRun are called.
+
+ def test_run__uses_defaultTestResult(self):
+ events = []
+
+ class Foo(unittest.TestCase):
+ def test(self):
+ events.append('test')
+
+ def defaultTestResult(self):
+ return LoggingResult(events)
+
+ # Make run() find a result object on its own
+ Foo('test').run()
+
+ expected = ['startTestRun', 'startTest', 'test', 'addSuccess',
+ 'stopTest', 'stopTestRun']
+ self.assertEqual(events, expected)
+
+ def testShortDescriptionWithoutDocstring(self):
+ self.assertIsNone(self.shortDescription())
+
+ @unittest.skipIf(sys.flags.optimize >= 2,
+ "Docstrings are omitted with -O2 and above")
+ def testShortDescriptionWithOneLineDocstring(self):
+ """Tests shortDescription() for a method with a docstring."""
+ self.assertEqual(
+ self.shortDescription(),
+ 'Tests shortDescription() for a method with a docstring.')
+
+ @unittest.skipIf(sys.flags.optimize >= 2,
+ "Docstrings are omitted with -O2 and above")
+ def testShortDescriptionWithMultiLineDocstring(self):
+ """Tests shortDescription() for a method with a longer docstring.
+
+ This method ensures that only the first line of a docstring is
+ returned used in the short description, no matter how long the
+ whole thing is.
+ """
+ self.assertEqual(
+ self.shortDescription(),
+ 'Tests shortDescription() for a method with a longer '
+ 'docstring.')
+
+ def testAddTypeEqualityFunc(self):
+ class SadSnake(object):
+ """Dummy class for test_addTypeEqualityFunc."""
+ s1, s2 = SadSnake(), SadSnake()
+ self.assertFalse(s1 == s2)
+ def AllSnakesCreatedEqual(a, b, msg=None):
+ return type(a) == type(b) == SadSnake
+ self.addTypeEqualityFunc(SadSnake, AllSnakesCreatedEqual)
+ self.assertEqual(s1, s2)
+ # No this doesn't clean up and remove the SadSnake equality func
+ # from this TestCase instance but since its a local nothing else
+ # will ever notice that.
+
+ def testAssertIs(self):
+ thing = object()
+ self.assertIs(thing, thing)
+ self.assertRaises(self.failureException, self.assertIs, thing, object())
+
+ def testAssertIsNot(self):
+ thing = object()
+ self.assertIsNot(thing, object())
+ self.assertRaises(self.failureException, self.assertIsNot, thing, thing)
+
+ def testAssertIsInstance(self):
+ thing = []
+ self.assertIsInstance(thing, list)
+ self.assertRaises(self.failureException, self.assertIsInstance,
+ thing, dict)
+
+ def testAssertNotIsInstance(self):
+ thing = []
+ self.assertNotIsInstance(thing, dict)
+ self.assertRaises(self.failureException, self.assertNotIsInstance,
+ thing, list)
+
+ def testAssertIn(self):
+ animals = {'monkey': 'banana', 'cow': 'grass', 'seal': 'fish'}
+
+ self.assertIn('a', 'abc')
+ self.assertIn(2, [1, 2, 3])
+ self.assertIn('monkey', animals)
+
+ self.assertNotIn('d', 'abc')
+ self.assertNotIn(0, [1, 2, 3])
+ self.assertNotIn('otter', animals)
+
+ self.assertRaises(self.failureException, self.assertIn, 'x', 'abc')
+ self.assertRaises(self.failureException, self.assertIn, 4, [1, 2, 3])
+ self.assertRaises(self.failureException, self.assertIn, 'elephant',
+ animals)
+
+ self.assertRaises(self.failureException, self.assertNotIn, 'c', 'abc')
+ self.assertRaises(self.failureException, self.assertNotIn, 1, [1, 2, 3])
+ self.assertRaises(self.failureException, self.assertNotIn, 'cow',
+ animals)
+
+ def testAssertDictContainsSubset(self):
+ with warnings.catch_warnings():
+ warnings.simplefilter("ignore", DeprecationWarning)
+
+ self.assertDictContainsSubset({}, {})
+ self.assertDictContainsSubset({}, {'a': 1})
+ self.assertDictContainsSubset({'a': 1}, {'a': 1})
+ self.assertDictContainsSubset({'a': 1}, {'a': 1, 'b': 2})
+ self.assertDictContainsSubset({'a': 1, 'b': 2}, {'a': 1, 'b': 2})
+
+ with self.assertRaises(self.failureException):
+ self.assertDictContainsSubset({1: "one"}, {})
+
+ with self.assertRaises(self.failureException):
+ self.assertDictContainsSubset({'a': 2}, {'a': 1})
+
+ with self.assertRaises(self.failureException):
+ self.assertDictContainsSubset({'c': 1}, {'a': 1})
+
+ with self.assertRaises(self.failureException):
+ self.assertDictContainsSubset({'a': 1, 'c': 1}, {'a': 1})
+
+ with self.assertRaises(self.failureException):
+ self.assertDictContainsSubset({'a': 1, 'c': 1}, {'a': 1})
+
+ one = ''.join(chr(i) for i in range(255))
+ # this used to cause a UnicodeDecodeError constructing the failure msg
+ with self.assertRaises(self.failureException):
+ self.assertDictContainsSubset({'foo': one}, {'foo': '\uFFFD'})
+
+ def testAssertEqual(self):
+ equal_pairs = [
+ ((), ()),
+ ({}, {}),
+ ([], []),
+ (set(), set()),
+ (frozenset(), frozenset())]
+ for a, b in equal_pairs:
+ # This mess of try excepts is to test the assertEqual behavior
+ # itself.
+ try:
+ self.assertEqual(a, b)
+ except self.failureException:
+ self.fail('assertEqual(%r, %r) failed' % (a, b))
+ try:
+ self.assertEqual(a, b, msg='foo')
+ except self.failureException:
+ self.fail('assertEqual(%r, %r) with msg= failed' % (a, b))
+ try:
+ self.assertEqual(a, b, 'foo')
+ except self.failureException:
+ self.fail('assertEqual(%r, %r) with third parameter failed' %
+ (a, b))
+
+ unequal_pairs = [
+ ((), []),
+ ({}, set()),
+ (set([4,1]), frozenset([4,2])),
+ (frozenset([4,5]), set([2,3])),
+ (set([3,4]), set([5,4]))]
+ for a, b in unequal_pairs:
+ self.assertRaises(self.failureException, self.assertEqual, a, b)
+ self.assertRaises(self.failureException, self.assertEqual, a, b,
+ 'foo')
+ self.assertRaises(self.failureException, self.assertEqual, a, b,
+ msg='foo')
+
+ def testEquality(self):
+ self.assertListEqual([], [])
+ self.assertTupleEqual((), ())
+ self.assertSequenceEqual([], ())
+
+ a = [0, 'a', []]
+ b = []
+ self.assertRaises(unittest.TestCase.failureException,
+ self.assertListEqual, a, b)
+ self.assertRaises(unittest.TestCase.failureException,
+ self.assertListEqual, tuple(a), tuple(b))
+ self.assertRaises(unittest.TestCase.failureException,
+ self.assertSequenceEqual, a, tuple(b))
+
+ b.extend(a)
+ self.assertListEqual(a, b)
+ self.assertTupleEqual(tuple(a), tuple(b))
+ self.assertSequenceEqual(a, tuple(b))
+ self.assertSequenceEqual(tuple(a), b)
+
+ self.assertRaises(self.failureException, self.assertListEqual,
+ a, tuple(b))
+ self.assertRaises(self.failureException, self.assertTupleEqual,
+ tuple(a), b)
+ self.assertRaises(self.failureException, self.assertListEqual, None, b)
+ self.assertRaises(self.failureException, self.assertTupleEqual, None,
+ tuple(b))
+ self.assertRaises(self.failureException, self.assertSequenceEqual,
+ None, tuple(b))
+ self.assertRaises(self.failureException, self.assertListEqual, 1, 1)
+ self.assertRaises(self.failureException, self.assertTupleEqual, 1, 1)
+ self.assertRaises(self.failureException, self.assertSequenceEqual,
+ 1, 1)
+
+ self.assertDictEqual({}, {})
+
+ c = { 'x': 1 }
+ d = {}
+ self.assertRaises(unittest.TestCase.failureException,
+ self.assertDictEqual, c, d)
+
+ d.update(c)
+ self.assertDictEqual(c, d)
+
+ d['x'] = 0
+ self.assertRaises(unittest.TestCase.failureException,
+ self.assertDictEqual, c, d, 'These are unequal')
+
+ self.assertRaises(self.failureException, self.assertDictEqual, None, d)
+ self.assertRaises(self.failureException, self.assertDictEqual, [], d)
+ self.assertRaises(self.failureException, self.assertDictEqual, 1, 1)
+
+ def testAssertSequenceEqualMaxDiff(self):
+ self.assertEqual(self.maxDiff, 80*8)
+ seq1 = 'a' + 'x' * 80**2
+ seq2 = 'b' + 'x' * 80**2
+ diff = '\n'.join(difflib.ndiff(pprint.pformat(seq1).splitlines(),
+ pprint.pformat(seq2).splitlines()))
+ # the +1 is the leading \n added by assertSequenceEqual
+ omitted = unittest.case.DIFF_OMITTED % (len(diff) + 1,)
+
+ self.maxDiff = len(diff)//2
+ try:
+
+ self.assertSequenceEqual(seq1, seq2)
+ except self.failureException as e:
+ msg = e.args[0]
+ else:
+ self.fail('assertSequenceEqual did not fail.')
+ self.assertTrue(len(msg) < len(diff))
+ self.assertIn(omitted, msg)
+
+ self.maxDiff = len(diff) * 2
+ try:
+ self.assertSequenceEqual(seq1, seq2)
+ except self.failureException as e:
+ msg = e.args[0]
+ else:
+ self.fail('assertSequenceEqual did not fail.')
+ self.assertTrue(len(msg) > len(diff))
+ self.assertNotIn(omitted, msg)
+
+ self.maxDiff = None
+ try:
+ self.assertSequenceEqual(seq1, seq2)
+ except self.failureException as e:
+ msg = e.args[0]
+ else:
+ self.fail('assertSequenceEqual did not fail.')
+ self.assertTrue(len(msg) > len(diff))
+ self.assertNotIn(omitted, msg)
+
+ def testTruncateMessage(self):
+ self.maxDiff = 1
+ message = self._truncateMessage('foo', 'bar')
+ omitted = unittest.case.DIFF_OMITTED % len('bar')
+ self.assertEqual(message, 'foo' + omitted)
+
+ self.maxDiff = None
+ message = self._truncateMessage('foo', 'bar')
+ self.assertEqual(message, 'foobar')
+
+ self.maxDiff = 4
+ message = self._truncateMessage('foo', 'bar')
+ self.assertEqual(message, 'foobar')
+
+ def testAssertDictEqualTruncates(self):
+ test = unittest.TestCase('assertEqual')
+ def truncate(msg, diff):
+ return 'foo'
+ test._truncateMessage = truncate
+ try:
+ test.assertDictEqual({}, {1: 0})
+ except self.failureException as e:
+ self.assertEqual(str(e), 'foo')
+ else:
+ self.fail('assertDictEqual did not fail')
+
+ def testAssertMultiLineEqualTruncates(self):
+ test = unittest.TestCase('assertEqual')
+ def truncate(msg, diff):
+ return 'foo'
+ test._truncateMessage = truncate
+ try:
+ test.assertMultiLineEqual('foo', 'bar')
+ except self.failureException as e:
+ self.assertEqual(str(e), 'foo')
+ else:
+ self.fail('assertMultiLineEqual did not fail')
+
+ def testAssertEqual_diffThreshold(self):
+ # check threshold value
+ self.assertEqual(self._diffThreshold, 2**16)
+ # disable madDiff to get diff markers
+ self.maxDiff = None
+
+ # set a lower threshold value and add a cleanup to restore it
+ old_threshold = self._diffThreshold
+ self._diffThreshold = 2**8
+ self.addCleanup(lambda: setattr(self, '_diffThreshold', old_threshold))
+
+ # under the threshold: diff marker (^) in error message
+ s = 'x' * (2**7)
+ with self.assertRaises(self.failureException) as cm:
+ self.assertEqual(s + 'a', s + 'b')
+ self.assertIn('^', str(cm.exception))
+ self.assertEqual(s + 'a', s + 'a')
+
+ # over the threshold: diff not used and marker (^) not in error message
+ s = 'x' * (2**9)
+ # if the path that uses difflib is taken, _truncateMessage will be
+ # called -- replace it with explodingTruncation to verify that this
+ # doesn't happen
+ def explodingTruncation(message, diff):
+ raise SystemError('this should not be raised')
+ old_truncate = self._truncateMessage
+ self._truncateMessage = explodingTruncation
+ self.addCleanup(lambda: setattr(self, '_truncateMessage', old_truncate))
+
+ s1, s2 = s + 'a', s + 'b'
+ with self.assertRaises(self.failureException) as cm:
+ self.assertEqual(s1, s2)
+ self.assertNotIn('^', str(cm.exception))
+ self.assertEqual(str(cm.exception), '%r != %r' % (s1, s2))
+ self.assertEqual(s + 'a', s + 'a')
+
+ def testAssertCountEqual(self):
+ a = object()
+ self.assertCountEqual([1, 2, 3], [3, 2, 1])
+ self.assertCountEqual(['foo', 'bar', 'baz'], ['bar', 'baz', 'foo'])
+ self.assertCountEqual([a, a, 2, 2, 3], (a, 2, 3, a, 2))
+ self.assertCountEqual([1, "2", "a", "a"], ["a", "2", True, "a"])
+ self.assertRaises(self.failureException, self.assertCountEqual,
+ [1, 2] + [3] * 100, [1] * 100 + [2, 3])
+ self.assertRaises(self.failureException, self.assertCountEqual,
+ [1, "2", "a", "a"], ["a", "2", True, 1])
+ self.assertRaises(self.failureException, self.assertCountEqual,
+ [10], [10, 11])
+ self.assertRaises(self.failureException, self.assertCountEqual,
+ [10, 11], [10])
+ self.assertRaises(self.failureException, self.assertCountEqual,
+ [10, 11, 10], [10, 11])
+
+ # Test that sequences of unhashable objects can be tested for sameness:
+ self.assertCountEqual([[1, 2], [3, 4], 0], [False, [3, 4], [1, 2]])
+ # Test that iterator of unhashable objects can be tested for sameness:
+ self.assertCountEqual(iter([1, 2, [], 3, 4]),
+ iter([1, 2, [], 3, 4]))
+
+ # hashable types, but not orderable
+ self.assertRaises(self.failureException, self.assertCountEqual,
+ [], [divmod, 'x', 1, 5j, 2j, frozenset()])
+ # comparing dicts
+ self.assertCountEqual([{'a': 1}, {'b': 2}], [{'b': 2}, {'a': 1}])
+ # comparing heterogenous non-hashable sequences
+ self.assertCountEqual([1, 'x', divmod, []], [divmod, [], 'x', 1])
+ self.assertRaises(self.failureException, self.assertCountEqual,
+ [], [divmod, [], 'x', 1, 5j, 2j, set()])
+ self.assertRaises(self.failureException, self.assertCountEqual,
+ [[1]], [[2]])
+
+ # Same elements, but not same sequence length
+ self.assertRaises(self.failureException, self.assertCountEqual,
+ [1, 1, 2], [2, 1])
+ self.assertRaises(self.failureException, self.assertCountEqual,
+ [1, 1, "2", "a", "a"], ["2", "2", True, "a"])
+ self.assertRaises(self.failureException, self.assertCountEqual,
+ [1, {'b': 2}, None, True], [{'b': 2}, True, None])
+
+ # Same elements which don't reliably compare, in
+ # different order, see issue 10242
+ a = [{2,4}, {1,2}]
+ b = a[::-1]
+ self.assertCountEqual(a, b)
+
+ # test utility functions supporting assertCountEqual()
+
+ diffs = set(unittest.util._count_diff_all_purpose('aaabccd', 'abbbcce'))
+ expected = {(3,1,'a'), (1,3,'b'), (1,0,'d'), (0,1,'e')}
+ self.assertEqual(diffs, expected)
+
+ diffs = unittest.util._count_diff_all_purpose([[]], [])
+ self.assertEqual(diffs, [(1, 0, [])])
+
+ diffs = set(unittest.util._count_diff_hashable('aaabccd', 'abbbcce'))
+ expected = {(3,1,'a'), (1,3,'b'), (1,0,'d'), (0,1,'e')}
+ self.assertEqual(diffs, expected)
+
+ def testAssertSetEqual(self):
+ set1 = set()
+ set2 = set()
+ self.assertSetEqual(set1, set2)
+
+ self.assertRaises(self.failureException, self.assertSetEqual, None, set2)
+ self.assertRaises(self.failureException, self.assertSetEqual, [], set2)
+ self.assertRaises(self.failureException, self.assertSetEqual, set1, None)
+ self.assertRaises(self.failureException, self.assertSetEqual, set1, [])
+
+ set1 = set(['a'])
+ set2 = set()
+ self.assertRaises(self.failureException, self.assertSetEqual, set1, set2)
+
+ set1 = set(['a'])
+ set2 = set(['a'])
+ self.assertSetEqual(set1, set2)
+
+ set1 = set(['a'])
+ set2 = set(['a', 'b'])
+ self.assertRaises(self.failureException, self.assertSetEqual, set1, set2)
+
+ set1 = set(['a'])
+ set2 = frozenset(['a', 'b'])
+ self.assertRaises(self.failureException, self.assertSetEqual, set1, set2)
+
+ set1 = set(['a', 'b'])
+ set2 = frozenset(['a', 'b'])
+ self.assertSetEqual(set1, set2)
+
+ set1 = set()
+ set2 = "foo"
+ self.assertRaises(self.failureException, self.assertSetEqual, set1, set2)
+ self.assertRaises(self.failureException, self.assertSetEqual, set2, set1)
+
+ # make sure any string formatting is tuple-safe
+ set1 = set([(0, 1), (2, 3)])
+ set2 = set([(4, 5)])
+ self.assertRaises(self.failureException, self.assertSetEqual, set1, set2)
+
+ def testInequality(self):
+ # Try ints
+ self.assertGreater(2, 1)
+ self.assertGreaterEqual(2, 1)
+ self.assertGreaterEqual(1, 1)
+ self.assertLess(1, 2)
+ self.assertLessEqual(1, 2)
+ self.assertLessEqual(1, 1)
+ self.assertRaises(self.failureException, self.assertGreater, 1, 2)
+ self.assertRaises(self.failureException, self.assertGreater, 1, 1)
+ self.assertRaises(self.failureException, self.assertGreaterEqual, 1, 2)
+ self.assertRaises(self.failureException, self.assertLess, 2, 1)
+ self.assertRaises(self.failureException, self.assertLess, 1, 1)
+ self.assertRaises(self.failureException, self.assertLessEqual, 2, 1)
+
+ # Try Floats
+ self.assertGreater(1.1, 1.0)
+ self.assertGreaterEqual(1.1, 1.0)
+ self.assertGreaterEqual(1.0, 1.0)
+ self.assertLess(1.0, 1.1)
+ self.assertLessEqual(1.0, 1.1)
+ self.assertLessEqual(1.0, 1.0)
+ self.assertRaises(self.failureException, self.assertGreater, 1.0, 1.1)
+ self.assertRaises(self.failureException, self.assertGreater, 1.0, 1.0)
+ self.assertRaises(self.failureException, self.assertGreaterEqual, 1.0, 1.1)
+ self.assertRaises(self.failureException, self.assertLess, 1.1, 1.0)
+ self.assertRaises(self.failureException, self.assertLess, 1.0, 1.0)
+ self.assertRaises(self.failureException, self.assertLessEqual, 1.1, 1.0)
+
+ # Try Strings
+ self.assertGreater('bug', 'ant')
+ self.assertGreaterEqual('bug', 'ant')
+ self.assertGreaterEqual('ant', 'ant')
+ self.assertLess('ant', 'bug')
+ self.assertLessEqual('ant', 'bug')
+ self.assertLessEqual('ant', 'ant')
+ self.assertRaises(self.failureException, self.assertGreater, 'ant', 'bug')
+ self.assertRaises(self.failureException, self.assertGreater, 'ant', 'ant')
+ self.assertRaises(self.failureException, self.assertGreaterEqual, 'ant', 'bug')
+ self.assertRaises(self.failureException, self.assertLess, 'bug', 'ant')
+ self.assertRaises(self.failureException, self.assertLess, 'ant', 'ant')
+ self.assertRaises(self.failureException, self.assertLessEqual, 'bug', 'ant')
+
+ # Try bytes
+ self.assertGreater(b'bug', b'ant')
+ self.assertGreaterEqual(b'bug', b'ant')
+ self.assertGreaterEqual(b'ant', b'ant')
+ self.assertLess(b'ant', b'bug')
+ self.assertLessEqual(b'ant', b'bug')
+ self.assertLessEqual(b'ant', b'ant')
+ self.assertRaises(self.failureException, self.assertGreater, b'ant', b'bug')
+ self.assertRaises(self.failureException, self.assertGreater, b'ant', b'ant')
+ self.assertRaises(self.failureException, self.assertGreaterEqual, b'ant',
+ b'bug')
+ self.assertRaises(self.failureException, self.assertLess, b'bug', b'ant')
+ self.assertRaises(self.failureException, self.assertLess, b'ant', b'ant')
+ self.assertRaises(self.failureException, self.assertLessEqual, b'bug', b'ant')
+
+ def testAssertMultiLineEqual(self):
+ sample_text = """\
+http://www.python.org/doc/2.3/lib/module-unittest.html
+test case
+ A test case is the smallest unit of testing. [...]
+"""
+ revised_sample_text = """\
+http://www.python.org/doc/2.4.1/lib/module-unittest.html
+test case
+ A test case is the smallest unit of testing. [...] You may provide your
+ own implementation that does not subclass from TestCase, of course.
+"""
+ sample_text_error = """\
+- http://www.python.org/doc/2.3/lib/module-unittest.html
+? ^
++ http://www.python.org/doc/2.4.1/lib/module-unittest.html
+? ^^^
+ test case
+- A test case is the smallest unit of testing. [...]
++ A test case is the smallest unit of testing. [...] You may provide your
+? +++++++++++++++++++++
++ own implementation that does not subclass from TestCase, of course.
+"""
+ self.maxDiff = None
+ try:
+ self.assertMultiLineEqual(sample_text, revised_sample_text)
+ except self.failureException as e:
+ # need to remove the first line of the error message
+ error = str(e).split('\n', 1)[1]
+
+ # no fair testing ourself with ourself, and assertEqual is used for strings
+ # so can't use assertEqual either. Just use assertTrue.
+ self.assertTrue(sample_text_error == error)
+
+ def testAsertEqualSingleLine(self):
+ sample_text = "laden swallows fly slowly"
+ revised_sample_text = "unladen swallows fly quickly"
+ sample_text_error = """\
+- laden swallows fly slowly
+? ^^^^
++ unladen swallows fly quickly
+? ++ ^^^^^
+"""
+ try:
+ self.assertEqual(sample_text, revised_sample_text)
+ except self.failureException as e:
+ error = str(e).split('\n', 1)[1]
+ self.assertTrue(sample_text_error == error)
+
+ def testAssertIsNone(self):
+ self.assertIsNone(None)
+ self.assertRaises(self.failureException, self.assertIsNone, False)
+ self.assertIsNotNone('DjZoPloGears on Rails')
+ self.assertRaises(self.failureException, self.assertIsNotNone, None)
+
+ def testAssertRegex(self):
+ self.assertRegex('asdfabasdf', r'ab+')
+ self.assertRaises(self.failureException, self.assertRegex,
+ 'saaas', r'aaaa')
+
+ def testAssertRaisesRegex(self):
+ class ExceptionMock(Exception):
+ pass
+
+ def Stub():
+ raise ExceptionMock('We expect')
+
+ self.assertRaisesRegex(ExceptionMock, re.compile('expect$'), Stub)
+ self.assertRaisesRegex(ExceptionMock, 'expect$', Stub)
+
+ def testAssertNotRaisesRegex(self):
+ self.assertRaisesRegex(
+ self.failureException, '^Exception not raised by <lambda>$',
+ self.assertRaisesRegex, Exception, re.compile('x'),
+ lambda: None)
+ self.assertRaisesRegex(
+ self.failureException, '^Exception not raised by <lambda>$',
+ self.assertRaisesRegex, Exception, 'x',
+ lambda: None)
+
+ def testAssertRaisesRegexMismatch(self):
+ def Stub():
+ raise Exception('Unexpected')
+
+ self.assertRaisesRegex(
+ self.failureException,
+ r'"\^Expected\$" does not match "Unexpected"',
+ self.assertRaisesRegex, Exception, '^Expected$',
+ Stub)
+ self.assertRaisesRegex(
+ self.failureException,
+ r'"\^Expected\$" does not match "Unexpected"',
+ self.assertRaisesRegex, Exception,
+ re.compile('^Expected$'), Stub)
+
+ def testAssertRaisesExcValue(self):
+ class ExceptionMock(Exception):
+ pass
+
+ def Stub(foo):
+ raise ExceptionMock(foo)
+ v = "particular value"
+
+ ctx = self.assertRaises(ExceptionMock)
+ with ctx:
+ Stub(v)
+ e = ctx.exception
+ self.assertIsInstance(e, ExceptionMock)
+ self.assertEqual(e.args[0], v)
+
+ def testAssertWarnsCallable(self):
+ def _runtime_warn():
+ warnings.warn("foo", RuntimeWarning)
+ # Success when the right warning is triggered, even several times
+ self.assertWarns(RuntimeWarning, _runtime_warn)
+ self.assertWarns(RuntimeWarning, _runtime_warn)
+ # A tuple of warning classes is accepted
+ self.assertWarns((DeprecationWarning, RuntimeWarning), _runtime_warn)
+ # *args and **kwargs also work
+ self.assertWarns(RuntimeWarning,
+ warnings.warn, "foo", category=RuntimeWarning)
+ # Failure when no warning is triggered
+ with self.assertRaises(self.failureException):
+ self.assertWarns(RuntimeWarning, lambda: 0)
+ # Failure when another warning is triggered
+ with warnings.catch_warnings():
+ # Force default filter (in case tests are run with -We)
+ warnings.simplefilter("default", RuntimeWarning)
+ with self.assertRaises(self.failureException):
+ self.assertWarns(DeprecationWarning, _runtime_warn)
+ # Filters for other warnings are not modified
+ with warnings.catch_warnings():
+ warnings.simplefilter("error", RuntimeWarning)
+ with self.assertRaises(RuntimeWarning):
+ self.assertWarns(DeprecationWarning, _runtime_warn)
+
+ def testAssertWarnsContext(self):
+ # Believe it or not, it is preferrable to duplicate all tests above,
+ # to make sure the __warningregistry__ $@ is circumvented correctly.
+ def _runtime_warn():
+ warnings.warn("foo", RuntimeWarning)
+ _runtime_warn_lineno = inspect.getsourcelines(_runtime_warn)[1]
+ with self.assertWarns(RuntimeWarning) as cm:
+ _runtime_warn()
+ # A tuple of warning classes is accepted
+ with self.assertWarns((DeprecationWarning, RuntimeWarning)) as cm:
+ _runtime_warn()
+ # The context manager exposes various useful attributes
+ self.assertIsInstance(cm.warning, RuntimeWarning)
+ self.assertEqual(cm.warning.args[0], "foo")
+ self.assertIn("test_case.py", cm.filename)
+ self.assertEqual(cm.lineno, _runtime_warn_lineno + 1)
+ # Same with several warnings
+ with self.assertWarns(RuntimeWarning):
+ _runtime_warn()
+ _runtime_warn()
+ with self.assertWarns(RuntimeWarning):
+ warnings.warn("foo", category=RuntimeWarning)
+ # Failure when no warning is triggered
+ with self.assertRaises(self.failureException):
+ with self.assertWarns(RuntimeWarning):
+ pass
+ # Failure when another warning is triggered
+ with warnings.catch_warnings():
+ # Force default filter (in case tests are run with -We)
+ warnings.simplefilter("default", RuntimeWarning)
+ with self.assertRaises(self.failureException):
+ with self.assertWarns(DeprecationWarning):
+ _runtime_warn()
+ # Filters for other warnings are not modified
+ with warnings.catch_warnings():
+ warnings.simplefilter("error", RuntimeWarning)
+ with self.assertRaises(RuntimeWarning):
+ with self.assertWarns(DeprecationWarning):
+ _runtime_warn()
+
+ def testAssertWarnsRegexCallable(self):
+ def _runtime_warn(msg):
+ warnings.warn(msg, RuntimeWarning)
+ self.assertWarnsRegex(RuntimeWarning, "o+",
+ _runtime_warn, "foox")
+ # Failure when no warning is triggered
+ with self.assertRaises(self.failureException):
+ self.assertWarnsRegex(RuntimeWarning, "o+",
+ lambda: 0)
+ # Failure when another warning is triggered
+ with warnings.catch_warnings():
+ # Force default filter (in case tests are run with -We)
+ warnings.simplefilter("default", RuntimeWarning)
+ with self.assertRaises(self.failureException):
+ self.assertWarnsRegex(DeprecationWarning, "o+",
+ _runtime_warn, "foox")
+ # Failure when message doesn't match
+ with self.assertRaises(self.failureException):
+ self.assertWarnsRegex(RuntimeWarning, "o+",
+ _runtime_warn, "barz")
+ # A little trickier: we ask RuntimeWarnings to be raised, and then
+ # check for some of them. It is implementation-defined whether
+ # non-matching RuntimeWarnings are simply re-raised, or produce a
+ # failureException.
+ with warnings.catch_warnings():
+ warnings.simplefilter("error", RuntimeWarning)
+ with self.assertRaises((RuntimeWarning, self.failureException)):
+ self.assertWarnsRegex(RuntimeWarning, "o+",
+ _runtime_warn, "barz")
+
+ def testAssertWarnsRegexContext(self):
+ # Same as above, but with assertWarnsRegex as a context manager
+ def _runtime_warn(msg):
+ warnings.warn(msg, RuntimeWarning)
+ _runtime_warn_lineno = inspect.getsourcelines(_runtime_warn)[1]
+ with self.assertWarnsRegex(RuntimeWarning, "o+") as cm:
+ _runtime_warn("foox")
+ self.assertIsInstance(cm.warning, RuntimeWarning)
+ self.assertEqual(cm.warning.args[0], "foox")
+ self.assertIn("test_case.py", cm.filename)
+ self.assertEqual(cm.lineno, _runtime_warn_lineno + 1)
+ # Failure when no warning is triggered
+ with self.assertRaises(self.failureException):
+ with self.assertWarnsRegex(RuntimeWarning, "o+"):
+ pass
+ # Failure when another warning is triggered
+ with warnings.catch_warnings():
+ # Force default filter (in case tests are run with -We)
+ warnings.simplefilter("default", RuntimeWarning)
+ with self.assertRaises(self.failureException):
+ with self.assertWarnsRegex(DeprecationWarning, "o+"):
+ _runtime_warn("foox")
+ # Failure when message doesn't match
+ with self.assertRaises(self.failureException):
+ with self.assertWarnsRegex(RuntimeWarning, "o+"):
+ _runtime_warn("barz")
+ # A little trickier: we ask RuntimeWarnings to be raised, and then
+ # check for some of them. It is implementation-defined whether
+ # non-matching RuntimeWarnings are simply re-raised, or produce a
+ # failureException.
+ with warnings.catch_warnings():
+ warnings.simplefilter("error", RuntimeWarning)
+ with self.assertRaises((RuntimeWarning, self.failureException)):
+ with self.assertWarnsRegex(RuntimeWarning, "o+"):
+ _runtime_warn("barz")
+
+ def testDeprecatedMethodNames(self):
+ """
+ Test that the deprecated methods raise a DeprecationWarning. See #9424.
+ """
+ old = (
+ (self.failIfEqual, (3, 5)),
+ (self.assertNotEquals, (3, 5)),
+ (self.failUnlessEqual, (3, 3)),
+ (self.assertEquals, (3, 3)),
+ (self.failUnlessAlmostEqual, (2.0, 2.0)),
+ (self.assertAlmostEquals, (2.0, 2.0)),
+ (self.failIfAlmostEqual, (3.0, 5.0)),
+ (self.assertNotAlmostEquals, (3.0, 5.0)),
+ (self.failUnless, (True,)),
+ (self.assert_, (True,)),
+ (self.failUnlessRaises, (TypeError, lambda _: 3.14 + 'spam')),
+ (self.failIf, (False,)),
+ (self.assertSameElements, ([1, 1, 2, 3], [1, 2, 3])),
+ (self.assertDictContainsSubset, (dict(a=1, b=2), dict(a=1, b=2, c=3))),
+ (self.assertRaisesRegexp, (KeyError, 'foo', lambda: {}['foo'])),
+ (self.assertRegexpMatches, ('bar', 'bar')),
+ )
+ for meth, args in old:
+ with self.assertWarns(DeprecationWarning):
+ meth(*args)
+
+ def testDeprecatedFailMethods(self):
+ """Test that the deprecated fail* methods get removed in 3.3"""
+ if sys.version_info[:2] < (3, 3):
+ return
+ deprecated_names = [
+ 'failIfEqual', 'failUnlessEqual', 'failUnlessAlmostEqual',
+ 'failIfAlmostEqual', 'failUnless', 'failUnlessRaises', 'failIf',
+ 'assertSameElements', 'assertDictContainsSubset',
+ ]
+ for deprecated_name in deprecated_names:
+ with self.assertRaises(AttributeError):
+ getattr(self, deprecated_name) # remove these in 3.3
+
+ def testDeepcopy(self):
+ # Issue: 5660
+ class TestableTest(unittest.TestCase):
+ def testNothing(self):
+ pass
+
+ test = TestableTest('testNothing')
+
+ # This shouldn't blow up
+ deepcopy(test)
+
+ def testPickle(self):
+ # Issue 10326
+
+ # Can't use TestCase classes defined in Test class as
+ # pickle does not work with inner classes
+ test = unittest.TestCase('run')
+ for protocol in range(pickle.HIGHEST_PROTOCOL + 1):
+
+ # blew up prior to fix
+ pickled_test = pickle.dumps(test, protocol=protocol)
+ unpickled_test = pickle.loads(pickled_test)
+ self.assertEqual(test, unpickled_test)
+
+ # exercise the TestCase instance in a way that will invoke
+ # the type equality lookup mechanism
+ unpickled_test.assertEqual(set(), set())
+
+ def testKeyboardInterrupt(self):
+ def _raise(self=None):
+ raise KeyboardInterrupt
+ def nothing(self):
+ pass
+
+ class Test1(unittest.TestCase):
+ test_something = _raise
+
+ class Test2(unittest.TestCase):
+ setUp = _raise
+ test_something = nothing
+
+ class Test3(unittest.TestCase):
+ test_something = nothing
+ tearDown = _raise
+
+ class Test4(unittest.TestCase):
+ def test_something(self):
+ self.addCleanup(_raise)
+
+ for klass in (Test1, Test2, Test3, Test4):
+ with self.assertRaises(KeyboardInterrupt):
+ klass('test_something').run()
+
+ def testSkippingEverywhere(self):
+ def _skip(self=None):
+ raise unittest.SkipTest('some reason')
+ def nothing(self):
+ pass
+
+ class Test1(unittest.TestCase):
+ test_something = _skip
+
+ class Test2(unittest.TestCase):
+ setUp = _skip
+ test_something = nothing
+
+ class Test3(unittest.TestCase):
+ test_something = nothing
+ tearDown = _skip
+
+ class Test4(unittest.TestCase):
+ def test_something(self):
+ self.addCleanup(_skip)
+
+ for klass in (Test1, Test2, Test3, Test4):
+ result = unittest.TestResult()
+ klass('test_something').run(result)
+ self.assertEqual(len(result.skipped), 1)
+ self.assertEqual(result.testsRun, 1)
+
+ def testSystemExit(self):
+ def _raise(self=None):
+ raise SystemExit
+ def nothing(self):
+ pass
+
+ class Test1(unittest.TestCase):
+ test_something = _raise
+
+ class Test2(unittest.TestCase):
+ setUp = _raise
+ test_something = nothing
+
+ class Test3(unittest.TestCase):
+ test_something = nothing
+ tearDown = _raise
+
+ class Test4(unittest.TestCase):
+ def test_something(self):
+ self.addCleanup(_raise)
+
+ for klass in (Test1, Test2, Test3, Test4):
+ result = unittest.TestResult()
+ klass('test_something').run(result)
+ self.assertEqual(len(result.errors), 1)
+ self.assertEqual(result.testsRun, 1)
generated by cgit v0.12 at 2024-10-10 18:22:28 (GMT)