| import contextlib |
| import difflib |
| import pprint |
| import pickle |
| import re |
| import sys |
| import logging |
| import warnings |
| import weakref |
| import inspect |
| import types |
| |
| from copy import deepcopy |
| from test import support |
| |
| import unittest |
| |
| from unittest.test.support import ( |
| TestEquality, TestHashing, LoggingResult, LegacyLoggingResult, |
| ResultWithNoStartTestRunStopTestRun |
| ) |
| from test.support import captured_stderr |
| |
| |
| log_foo = logging.getLogger('foo') |
| log_foobar = logging.getLogger('foo.bar') |
| log_quux = logging.getLogger('quux') |
| |
| |
| 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() |
| |
| def _check_call_order__subtests(self, result, events, expected_events): |
| class Foo(Test.LoggingTestCase): |
| def test(self): |
| super(Foo, self).test() |
| for i in [1, 2, 3]: |
| with self.subTest(i=i): |
| if i == 1: |
| self.fail('failure') |
| for j in [2, 3]: |
| with self.subTest(j=j): |
| if i * j == 6: |
| raise RuntimeError('raised by Foo.test') |
| 1 / 0 |
| |
| # Order is the following: |
| # i=1 => subtest failure |
| # i=2, j=2 => subtest success |
| # i=2, j=3 => subtest error |
| # i=3, j=2 => subtest error |
| # i=3, j=3 => subtest success |
| # toplevel => error |
| Foo(events).run(result) |
| self.assertEqual(events, expected_events) |
| |
| def test_run_call_order__subtests(self): |
| events = [] |
| result = LoggingResult(events) |
| expected = ['startTest', 'setUp', 'test', 'tearDown', |
| 'addSubTestFailure', 'addSubTestSuccess', |
| 'addSubTestFailure', 'addSubTestFailure', |
| 'addSubTestSuccess', 'addError', 'stopTest'] |
| self._check_call_order__subtests(result, events, expected) |
| |
| def test_run_call_order__subtests_legacy(self): |
| # With a legacy result object (without an addSubTest method), |
| # text execution stops after the first subtest failure. |
| events = [] |
| result = LegacyLoggingResult(events) |
| expected = ['startTest', 'setUp', 'test', 'tearDown', |
| 'addFailure', 'stopTest'] |
| self._check_call_order__subtests(result, events, expected) |
| |
| def _check_call_order__subtests_success(self, result, events, expected_events): |
| class Foo(Test.LoggingTestCase): |
| def test(self): |
| super(Foo, self).test() |
| for i in [1, 2]: |
| with self.subTest(i=i): |
| for j in [2, 3]: |
| with self.subTest(j=j): |
| pass |
| |
| Foo(events).run(result) |
| self.assertEqual(events, expected_events) |
| |
| def test_run_call_order__subtests_success(self): |
| events = [] |
| result = LoggingResult(events) |
| # The 6 subtest successes are individually recorded, in addition |
| # to the whole test success. |
| expected = (['startTest', 'setUp', 'test', 'tearDown'] |
| + 6 * ['addSubTestSuccess'] |
| + ['addSuccess', 'stopTest']) |
| self._check_call_order__subtests_success(result, events, expected) |
| |
| def test_run_call_order__subtests_success_legacy(self): |
| # With a legacy result, only the whole test success is recorded. |
| events = [] |
| result = LegacyLoggingResult(events) |
| expected = ['startTest', 'setUp', 'test', 'tearDown', |
| 'addSuccess', 'stopTest'] |
| self._check_call_order__subtests_success(result, events, expected) |
| |
| def test_run_call_order__subtests_failfast(self): |
| events = [] |
| result = LoggingResult(events) |
| result.failfast = True |
| |
| class Foo(Test.LoggingTestCase): |
| def test(self): |
| super(Foo, self).test() |
| with self.subTest(i=1): |
| self.fail('failure') |
| with self.subTest(i=2): |
| self.fail('failure') |
| self.fail('failure') |
| |
| expected = ['startTest', 'setUp', 'test', 'tearDown', |
| 'addSubTestFailure', 'stopTest'] |
| Foo(events).run(result) |
| self.assertEqual(events, expected) |
| |
| def test_subtests_failfast(self): |
| # Ensure proper test flow with subtests and failfast (issue #22894) |
| events = [] |
| |
| class Foo(unittest.TestCase): |
| def test_a(self): |
| with self.subTest(): |
| events.append('a1') |
| events.append('a2') |
| |
| def test_b(self): |
| with self.subTest(): |
| events.append('b1') |
| with self.subTest(): |
| self.fail('failure') |
| events.append('b2') |
| |
| def test_c(self): |
| events.append('c') |
| |
| result = unittest.TestResult() |
| result.failfast = True |
| suite = unittest.makeSuite(Foo) |
| suite.run(result) |
| |
| expected = ['a1', 'a2', 'b1'] |
| self.assertEqual(events, expected) |
| |
| def test_subtests_debug(self): |
| # Test debug() with a test that uses subTest() (bpo-34900) |
| events = [] |
| |
| class Foo(unittest.TestCase): |
| def test_a(self): |
| events.append('test case') |
| with self.subTest(): |
| events.append('subtest 1') |
| |
| Foo('test_a').debug() |
| |
| self.assertEqual(events, ['test case', 'subtest 1']) |
| |
| # "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.assertIs(Foo('test').failureException, 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.assertIs(Foo('test').failureException, 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.assertIs(Foo('test').failureException, 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, |
| # used, and is made available to the caller. As TestCase owns the |
| # temporary result startTestRun and stopTestRun are called. |
| |
| def test_run__uses_defaultTestResult(self): |
| events = [] |
| defaultResult = LoggingResult(events) |
| |
| class Foo(unittest.TestCase): |
| def test(self): |
| events.append('test') |
| |
| def defaultTestResult(self): |
| return defaultResult |
| |
| # Make run() find a result object on its own |
| result = Foo('test').run() |
| |
| self.assertIs(result, defaultResult) |
| expected = ['startTestRun', 'startTest', 'test', 'addSuccess', |
| 'stopTest', 'stopTestRun'] |
| self.assertEqual(events, expected) |
| |
| |
| # "The result object is returned to run's caller" |
| def test_run__returns_given_result(self): |
| |
| class Foo(unittest.TestCase): |
| def test(self): |
| pass |
| |
| result = unittest.TestResult() |
| |
| retval = Foo('test').run(result) |
| self.assertIs(retval, result) |
| |
| |
| # "The same effect [as method run] may be had by simply calling the |
| # TestCase instance." |
| def test_call__invoking_an_instance_delegates_to_run(self): |
| resultIn = unittest.TestResult() |
| resultOut = unittest.TestResult() |
| |
| class Foo(unittest.TestCase): |
| def test(self): |
| pass |
| |
| def run(self, result): |
| self.assertIs(result, resultIn) |
| return resultOut |
| |
| retval = Foo('test')(resultIn) |
| |
| self.assertIs(retval, resultOut) |
| |
| |
| 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 testShortDescriptionWhitespaceTrimming(self): |
| """ |
| Tests shortDescription() whitespace is trimmed, so that the first |
| line of nonwhite-space text becomes the docstring. |
| """ |
| self.assertEqual( |
| self.shortDescription(), |
| 'Tests shortDescription() whitespace is trimmed, so that the first') |
| |
| 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 it's 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.assertLess(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.assertGreater(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.assertGreater(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**5 |
| self.addCleanup(lambda: setattr(self, '_diffThreshold', old_threshold)) |
| |
| # under the threshold: diff marker (^) in error message |
| s = 'x' * (2**4) |
| 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**6) |
| # 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 testAssertEqual_shorten(self): |
| # set a lower threshold value and add a cleanup to restore it |
| old_threshold = self._diffThreshold |
| self._diffThreshold = 0 |
| self.addCleanup(lambda: setattr(self, '_diffThreshold', old_threshold)) |
| |
| s = 'x' * 100 |
| s1, s2 = s + 'a', s + 'b' |
| with self.assertRaises(self.failureException) as cm: |
| self.assertEqual(s1, s2) |
| c = 'xxxx[35 chars]' + 'x' * 61 |
| self.assertEqual(str(cm.exception), "'%sa' != '%sb'" % (c, c)) |
| self.assertEqual(s + 'a', s + 'a') |
| |
| p = 'y' * 50 |
| s1, s2 = s + 'a' + p, s + 'b' + p |
| with self.assertRaises(self.failureException) as cm: |
| self.assertEqual(s1, s2) |
| c = 'xxxx[85 chars]xxxxxxxxxxx' |
| self.assertEqual(str(cm.exception), "'%sa%s' != '%sb%s'" % (c, p, c, p)) |
| |
| p = 'y' * 100 |
| s1, s2 = s + 'a' + p, s + 'b' + p |
| with self.assertRaises(self.failureException) as cm: |
| self.assertEqual(s1, s2) |
| c = 'xxxx[91 chars]xxxxx' |
| d = 'y' * 40 + '[56 chars]yyyy' |
| self.assertEqual(str(cm.exception), "'%sa%s' != '%sb%s'" % (c, d, c, d)) |
| |
| 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 heterogeneous 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] |
| self.assertEqual(sample_text_error, error) |
| |
| def testAssertEqualSingleLine(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: |
| # need to remove the first line of the error message |
| error = str(e).split('\n', 1)[1] |
| self.assertEqual(sample_text_error, error) |
| |
| def testEqualityBytesWarning(self): |
| if sys.flags.bytes_warning: |
| def bytes_warning(): |
| return self.assertWarnsRegex(BytesWarning, |
| 'Comparison between bytes and string') |
| else: |
| def bytes_warning(): |
| return contextlib.ExitStack() |
| |
| with bytes_warning(), self.assertRaises(self.failureException): |
| self.assertEqual('a', b'a') |
| with bytes_warning(): |
| self.assertNotEqual('a', b'a') |
| |
| a = [0, 'a'] |
| b = [0, b'a'] |
| with bytes_warning(), self.assertRaises(self.failureException): |
| self.assertListEqual(a, b) |
| with bytes_warning(), self.assertRaises(self.failureException): |
| self.assertTupleEqual(tuple(a), tuple(b)) |
| with bytes_warning(), self.assertRaises(self.failureException): |
| self.assertSequenceEqual(a, tuple(b)) |
| with bytes_warning(), self.assertRaises(self.failureException): |
| self.assertSequenceEqual(tuple(a), b) |
| with bytes_warning(), self.assertRaises(self.failureException): |
| self.assertSequenceEqual('a', b'a') |
| with bytes_warning(), self.assertRaises(self.failureException): |
| self.assertSetEqual(set(a), set(b)) |
| |
| with self.assertRaises(self.failureException): |
| self.assertListEqual(a, tuple(b)) |
| with self.assertRaises(self.failureException): |
| self.assertTupleEqual(tuple(a), b) |
| |
| a = [0, b'a'] |
| b = [0] |
| with self.assertRaises(self.failureException): |
| self.assertListEqual(a, b) |
| with self.assertRaises(self.failureException): |
| self.assertTupleEqual(tuple(a), tuple(b)) |
| with self.assertRaises(self.failureException): |
| self.assertSequenceEqual(a, tuple(b)) |
| with self.assertRaises(self.failureException): |
| self.assertSequenceEqual(tuple(a), b) |
| with self.assertRaises(self.failureException): |
| self.assertSetEqual(set(a), set(b)) |
| |
| a = [0] |
| b = [0, b'a'] |
| with self.assertRaises(self.failureException): |
| self.assertListEqual(a, b) |
| with self.assertRaises(self.failureException): |
| self.assertTupleEqual(tuple(a), tuple(b)) |
| with self.assertRaises(self.failureException): |
| self.assertSequenceEqual(a, tuple(b)) |
| with self.assertRaises(self.failureException): |
| self.assertSequenceEqual(tuple(a), b) |
| with self.assertRaises(self.failureException): |
| self.assertSetEqual(set(a), set(b)) |
| |
| with bytes_warning(), self.assertRaises(self.failureException): |
| self.assertDictEqual({'a': 0}, {b'a': 0}) |
| with self.assertRaises(self.failureException): |
| self.assertDictEqual({}, {b'a': 0}) |
| with self.assertRaises(self.failureException): |
| self.assertDictEqual({b'a': 0}, {}) |
| |
| with self.assertRaises(self.failureException): |
| self.assertCountEqual([b'a', b'a'], [b'a', b'a', b'a']) |
| with bytes_warning(): |
| self.assertCountEqual(['a', b'a'], ['a', b'a']) |
| with bytes_warning(), self.assertRaises(self.failureException): |
| self.assertCountEqual(['a', 'a'], [b'a', b'a']) |
| with bytes_warning(), self.assertRaises(self.failureException): |
| self.assertCountEqual(['a', 'a', []], [b'a', b'a', []]) |
| |
| 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 testAssertRaisesCallable(self): |
| class ExceptionMock(Exception): |
| pass |
| def Stub(): |
| raise ExceptionMock('We expect') |
| self.assertRaises(ExceptionMock, Stub) |
| # A tuple of exception classes is accepted |
| self.assertRaises((ValueError, ExceptionMock), Stub) |
| # *args and **kwargs also work |
| self.assertRaises(ValueError, int, '19', base=8) |
| # Failure when no exception is raised |
| with self.assertRaises(self.failureException): |
| self.assertRaises(ExceptionMock, lambda: 0) |
| # Failure when the function is None |
| with self.assertRaises(TypeError): |
| self.assertRaises(ExceptionMock, None) |
| # Failure when another exception is raised |
| with self.assertRaises(ExceptionMock): |
| self.assertRaises(ValueError, Stub) |
| |
| def testAssertRaisesContext(self): |
| class ExceptionMock(Exception): |
| pass |
| def Stub(): |
| raise ExceptionMock('We expect') |
| with self.assertRaises(ExceptionMock): |
| Stub() |
| # A tuple of exception classes is accepted |
| with self.assertRaises((ValueError, ExceptionMock)) as cm: |
| Stub() |
| # The context manager exposes caught exception |
| self.assertIsInstance(cm.exception, ExceptionMock) |
| self.assertEqual(cm.exception.args[0], 'We expect') |
| # *args and **kwargs also work |
| with self.assertRaises(ValueError): |
| int('19', base=8) |
| # Failure when no exception is raised |
| with self.assertRaises(self.failureException): |
| with self.assertRaises(ExceptionMock): |
| pass |
| # Custom message |
| with self.assertRaisesRegex(self.failureException, 'foobar'): |
| with self.assertRaises(ExceptionMock, msg='foobar'): |
| pass |
| # Invalid keyword argument |
| with self.assertRaisesRegex(TypeError, 'foobar'): |
| with self.assertRaises(ExceptionMock, foobar=42): |
| pass |
| # Failure when another exception is raised |
| with self.assertRaises(ExceptionMock): |
| self.assertRaises(ValueError, Stub) |
| |
| def testAssertRaisesNoExceptionType(self): |
| with self.assertRaises(TypeError): |
| self.assertRaises() |
| with self.assertRaises(TypeError): |
| self.assertRaises(1) |
| with self.assertRaises(TypeError): |
| self.assertRaises(object) |
| with self.assertRaises(TypeError): |
| self.assertRaises((ValueError, 1)) |
| with self.assertRaises(TypeError): |
| self.assertRaises((ValueError, object)) |
| |
| def testAssertRaisesRefcount(self): |
| # bpo-23890: assertRaises() must not keep objects alive longer |
| # than expected |
| def func() : |
| try: |
| raise ValueError |
| except ValueError: |
| raise ValueError |
| |
| refcount = sys.getrefcount(func) |
| self.assertRaises(ValueError, func) |
| self.assertEqual(refcount, sys.getrefcount(func)) |
| |
| 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) |
| with self.assertRaises(TypeError): |
| self.assertRaisesRegex(ExceptionMock, 'expect$', None) |
| |
| def testAssertNotRaisesRegex(self): |
| self.assertRaisesRegex( |
| self.failureException, '^Exception not raised by <lambda>$', |
| self.assertRaisesRegex, Exception, re.compile('x'), |
| lambda: None) |
| self.assertRaisesRegex( |
| self.failureException, '^Exception not raised by <lambda>$', |
| self.assertRaisesRegex, Exception, 'x', |
| lambda: None) |
| # Custom message |
| with self.assertRaisesRegex(self.failureException, 'foobar'): |
| with self.assertRaisesRegex(Exception, 'expect', msg='foobar'): |
| pass |
| # Invalid keyword argument |
| with self.assertRaisesRegex(TypeError, 'foobar'): |
| with self.assertRaisesRegex(Exception, 'expect', foobar=42): |
| pass |
| |
| def testAssertRaisesRegexInvalidRegex(self): |
| # Issue 20145. |
| class MyExc(Exception): |
| pass |
| self.assertRaises(TypeError, self.assertRaisesRegex, MyExc, lambda: True) |
| |
| def testAssertWarnsRegexInvalidRegex(self): |
| # Issue 20145. |
| class MyWarn(Warning): |
| pass |
| self.assertRaises(TypeError, self.assertWarnsRegex, MyWarn, lambda: True) |
| |
| def testAssertWarnsModifySysModules(self): |
| # bpo-29620: handle modified sys.modules during iteration |
| class Foo(types.ModuleType): |
| @property |
| def __warningregistry__(self): |
| sys.modules['@bar@'] = 'bar' |
| |
| sys.modules['@foo@'] = Foo('foo') |
| try: |
| self.assertWarns(UserWarning, warnings.warn, 'expected') |
| finally: |
| del sys.modules['@foo@'] |
| del sys.modules['@bar@'] |
| |
| def testAssertRaisesRegexMismatch(self): |
| def Stub(): |
| raise Exception('Unexpected') |
| |
| self.assertRaisesRegex( |
| self.failureException, |
| r'"\^Expected\$" does not match "Unexpected"', |
| self.assertRaisesRegex, Exception, '^Expected$', |
| 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 testAssertRaisesRegexNoExceptionType(self): |
| with self.assertRaises(TypeError): |
| self.assertRaisesRegex() |
| with self.assertRaises(TypeError): |
| self.assertRaisesRegex(ValueError) |
| with self.assertRaises(TypeError): |
| self.assertRaisesRegex(1, 'expect') |
| with self.assertRaises(TypeError): |
| self.assertRaisesRegex(object, 'expect') |
| with self.assertRaises(TypeError): |
| self.assertRaisesRegex((ValueError, 1), 'expect') |
| with self.assertRaises(TypeError): |
| self.assertRaisesRegex((ValueError, object), 'expect') |
| |
| 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 the function is None |
| with self.assertRaises(TypeError): |
| self.assertWarns(RuntimeWarning, None) |
| # 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 preferable 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 |
| # Custom message |
| with self.assertRaisesRegex(self.failureException, 'foobar'): |
| with self.assertWarns(RuntimeWarning, msg='foobar'): |
| pass |
| # Invalid keyword argument |
| with self.assertRaisesRegex(TypeError, 'foobar'): |
| with self.assertWarns(RuntimeWarning, foobar=42): |
| 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 testAssertWarnsNoExceptionType(self): |
| with self.assertRaises(TypeError): |
| self.assertWarns() |
| with self.assertRaises(TypeError): |
| self.assertWarns(1) |
| with self.assertRaises(TypeError): |
| self.assertWarns(object) |
| with self.assertRaises(TypeError): |
| self.assertWarns((UserWarning, 1)) |
| with self.assertRaises(TypeError): |
| self.assertWarns((UserWarning, object)) |
| with self.assertRaises(TypeError): |
| self.assertWarns((UserWarning, Exception)) |
| |
| 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 the function is None |
| with self.assertRaises(TypeError): |
| self.assertWarnsRegex(RuntimeWarning, "o+", None) |
| # 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 |
| # Custom message |
| with self.assertRaisesRegex(self.failureException, 'foobar'): |
| with self.assertWarnsRegex(RuntimeWarning, 'o+', msg='foobar'): |
| pass |
| # Invalid keyword argument |
| with self.assertRaisesRegex(TypeError, 'foobar'): |
| with self.assertWarnsRegex(RuntimeWarning, 'o+', foobar=42): |
| 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 testAssertWarnsRegexNoExceptionType(self): |
| with self.assertRaises(TypeError): |
| self.assertWarnsRegex() |
| with self.assertRaises(TypeError): |
| self.assertWarnsRegex(UserWarning) |
| with self.assertRaises(TypeError): |
| self.assertWarnsRegex(1, 'expect') |
| with self.assertRaises(TypeError): |
| self.assertWarnsRegex(object, 'expect') |
| with self.assertRaises(TypeError): |
| self.assertWarnsRegex((UserWarning, 1), 'expect') |
| with self.assertRaises(TypeError): |
| self.assertWarnsRegex((UserWarning, object), 'expect') |
| with self.assertRaises(TypeError): |
| self.assertWarnsRegex((UserWarning, Exception), 'expect') |
| |
| @contextlib.contextmanager |
| def assertNoStderr(self): |
| with captured_stderr() as buf: |
| yield |
| self.assertEqual(buf.getvalue(), "") |
| |
| def assertLogRecords(self, records, matches): |
| self.assertEqual(len(records), len(matches)) |
| for rec, match in zip(records, matches): |
| self.assertIsInstance(rec, logging.LogRecord) |
| for k, v in match.items(): |
| self.assertEqual(getattr(rec, k), v) |
| |
| def testAssertLogsDefaults(self): |
| # defaults: root logger, level INFO |
| with self.assertNoStderr(): |
| with self.assertLogs() as cm: |
| log_foo.info("1") |
| log_foobar.debug("2") |
| self.assertEqual(cm.output, ["INFO:foo:1"]) |
| self.assertLogRecords(cm.records, [{'name': 'foo'}]) |
| |
| def testAssertLogsTwoMatchingMessages(self): |
| # Same, but with two matching log messages |
| with self.assertNoStderr(): |
| with self.assertLogs() as cm: |
| log_foo.info("1") |
| log_foobar.debug("2") |
| log_quux.warning("3") |
| self.assertEqual(cm.output, ["INFO:foo:1", "WARNING:quux:3"]) |
| self.assertLogRecords(cm.records, |
| [{'name': 'foo'}, {'name': 'quux'}]) |
| |
| def checkAssertLogsPerLevel(self, level): |
| # Check level filtering |
| with self.assertNoStderr(): |
| with self.assertLogs(level=level) as cm: |
| log_foo.warning("1") |
| log_foobar.error("2") |
| log_quux.critical("3") |
| self.assertEqual(cm.output, ["ERROR:foo.bar:2", "CRITICAL:quux:3"]) |
| self.assertLogRecords(cm.records, |
| [{'name': 'foo.bar'}, {'name': 'quux'}]) |
| |
| def testAssertLogsPerLevel(self): |
| self.checkAssertLogsPerLevel(logging.ERROR) |
| self.checkAssertLogsPerLevel('ERROR') |
| |
| def checkAssertLogsPerLogger(self, logger): |
| # Check per-logger filtering |
| with self.assertNoStderr(): |
| with self.assertLogs(level='DEBUG') as outer_cm: |
| with self.assertLogs(logger, level='DEBUG') as cm: |
| log_foo.info("1") |
| log_foobar.debug("2") |
| log_quux.warning("3") |
| self.assertEqual(cm.output, ["INFO:foo:1", "DEBUG:foo.bar:2"]) |
| self.assertLogRecords(cm.records, |
| [{'name': 'foo'}, {'name': 'foo.bar'}]) |
| # The outer catchall caught the quux log |
| self.assertEqual(outer_cm.output, ["WARNING:quux:3"]) |
| |
| def testAssertLogsPerLogger(self): |
| self.checkAssertLogsPerLogger(logging.getLogger('foo')) |
| self.checkAssertLogsPerLogger('foo') |
| |
| def testAssertLogsFailureNoLogs(self): |
| # Failure due to no logs |
| with self.assertNoStderr(): |
| with self.assertRaises(self.failureException): |
| with self.assertLogs(): |
| pass |
| |
| def testAssertLogsFailureLevelTooHigh(self): |
| # Failure due to level too high |
| with self.assertNoStderr(): |
| with self.assertRaises(self.failureException): |
| with self.assertLogs(level='WARNING'): |
| log_foo.info("1") |
| |
| def testAssertLogsFailureMismatchingLogger(self): |
| # Failure due to mismatching logger (and the logged message is |
| # passed through) |
| with self.assertLogs('quux', level='ERROR'): |
| with self.assertRaises(self.failureException): |
| with self.assertLogs('foo'): |
| log_quux.error("1") |
| |
| 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.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) |
| |
| # disable this test for now. When the version where the fail* methods will |
| # be removed is decided, re-enable it and update the version |
| def _testDeprecatedFailMethods(self): |
| """Test that the deprecated fail* methods get removed in 3.x""" |
| if sys.version_info[:2] < (3, 3): |
| return |
| deprecated_names = [ |
| 'failIfEqual', 'failUnlessEqual', 'failUnlessAlmostEqual', |
| 'failIfAlmostEqual', 'failUnless', 'failUnlessRaises', 'failIf', |
| 'assertDictContainsSubset', |
| ] |
| for deprecated_name in deprecated_names: |
| with self.assertRaises(AttributeError): |
| getattr(self, deprecated_name) # remove these in 3.x |
| |
| 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) |
| |
| @support.cpython_only |
| def testNoCycles(self): |
| case = unittest.TestCase() |
| wr = weakref.ref(case) |
| with support.disable_gc(): |
| del case |
| self.assertFalse(wr()) |
| |
| def test_no_exception_leak(self): |
| # Issue #19880: TestCase.run() should not keep a reference |
| # to the exception |
| class MyException(Exception): |
| ninstance = 0 |
| |
| def __init__(self): |
| MyException.ninstance += 1 |
| Exception.__init__(self) |
| |
| def __del__(self): |
| MyException.ninstance -= 1 |
| |
| class TestCase(unittest.TestCase): |
| def test1(self): |
| raise MyException() |
| |
| @unittest.expectedFailure |
| def test2(self): |
| raise MyException() |
| |
| for method_name in ('test1', 'test2'): |
| testcase = TestCase(method_name) |
| testcase.run() |
| self.assertEqual(MyException.ninstance, 0) |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |
