| import datetime | |
| import warnings | |
| import weakref | |
| import unittest | |
| from test.support import gc_collect | |
| from itertools import product | |
| class Test_Assertions(unittest.TestCase): | |
| def test_AlmostEqual(self): | |
| self.assertAlmostEqual(1.00000001, 1.0) | |
| self.assertNotAlmostEqual(1.0000001, 1.0) | |
| self.assertRaises(self.failureException, | |
| self.assertAlmostEqual, 1.0000001, 1.0) | |
| self.assertRaises(self.failureException, | |
| self.assertNotAlmostEqual, 1.00000001, 1.0) | |
| self.assertAlmostEqual(1.1, 1.0, places=0) | |
| self.assertRaises(self.failureException, | |
| self.assertAlmostEqual, 1.1, 1.0, places=1) | |
| self.assertAlmostEqual(0, .1+.1j, places=0) | |
| self.assertNotAlmostEqual(0, .1+.1j, places=1) | |
| self.assertRaises(self.failureException, | |
| self.assertAlmostEqual, 0, .1+.1j, places=1) | |
| self.assertRaises(self.failureException, | |
| self.assertNotAlmostEqual, 0, .1+.1j, places=0) | |
| self.assertAlmostEqual(float('inf'), float('inf')) | |
| self.assertRaises(self.failureException, self.assertNotAlmostEqual, | |
| float('inf'), float('inf')) | |
| def test_AmostEqualWithDelta(self): | |
| self.assertAlmostEqual(1.1, 1.0, delta=0.5) | |
| self.assertAlmostEqual(1.0, 1.1, delta=0.5) | |
| self.assertNotAlmostEqual(1.1, 1.0, delta=0.05) | |
| self.assertNotAlmostEqual(1.0, 1.1, delta=0.05) | |
| self.assertAlmostEqual(1.0, 1.0, delta=0.5) | |
| self.assertRaises(self.failureException, self.assertNotAlmostEqual, | |
| 1.0, 1.0, delta=0.5) | |
| self.assertRaises(self.failureException, self.assertAlmostEqual, | |
| 1.1, 1.0, delta=0.05) | |
| self.assertRaises(self.failureException, self.assertNotAlmostEqual, | |
| 1.1, 1.0, delta=0.5) | |
| self.assertRaises(TypeError, self.assertAlmostEqual, | |
| 1.1, 1.0, places=2, delta=2) | |
| self.assertRaises(TypeError, self.assertNotAlmostEqual, | |
| 1.1, 1.0, places=2, delta=2) | |
| first = datetime.datetime.now() | |
| second = first + datetime.timedelta(seconds=10) | |
| self.assertAlmostEqual(first, second, | |
| delta=datetime.timedelta(seconds=20)) | |
| self.assertNotAlmostEqual(first, second, | |
| delta=datetime.timedelta(seconds=5)) | |
| def test_assertRaises(self): | |
| def _raise(e): | |
| raise e | |
| self.assertRaises(KeyError, _raise, KeyError) | |
| self.assertRaises(KeyError, _raise, KeyError("key")) | |
| try: | |
| self.assertRaises(KeyError, lambda: None) | |
| except self.failureException as e: | |
| self.assertIn("KeyError not raised", str(e)) | |
| else: | |
| self.fail("assertRaises() didn't fail") | |
| try: | |
| self.assertRaises(KeyError, _raise, ValueError) | |
| except ValueError: | |
| pass | |
| else: | |
| self.fail("assertRaises() didn't let exception pass through") | |
| with self.assertRaises(KeyError) as cm: | |
| try: | |
| raise KeyError | |
| except Exception as e: | |
| exc = e | |
| raise | |
| self.assertIs(cm.exception, exc) | |
| with self.assertRaises(KeyError): | |
| raise KeyError("key") | |
| try: | |
| with self.assertRaises(KeyError): | |
| pass | |
| except self.failureException as e: | |
| self.assertIn("KeyError not raised", str(e)) | |
| else: | |
| self.fail("assertRaises() didn't fail") | |
| try: | |
| with self.assertRaises(KeyError): | |
| raise ValueError | |
| except ValueError: | |
| pass | |
| else: | |
| self.fail("assertRaises() didn't let exception pass through") | |
| def test_assertRaises_frames_survival(self): | |
| # Issue #9815: assertRaises should avoid keeping local variables | |
| # in a traceback alive. | |
| class A: | |
| pass | |
| wr = None | |
| class Foo(unittest.TestCase): | |
| def foo(self): | |
| nonlocal wr | |
| a = A() | |
| wr = weakref.ref(a) | |
| try: | |
| raise OSError | |
| except OSError: | |
| raise ValueError | |
| def test_functional(self): | |
| self.assertRaises(ValueError, self.foo) | |
| def test_with(self): | |
| with self.assertRaises(ValueError): | |
| self.foo() | |
| Foo("test_functional").run() | |
| gc_collect() # For PyPy or other GCs. | |
| self.assertIsNone(wr()) | |
| Foo("test_with").run() | |
| gc_collect() # For PyPy or other GCs. | |
| self.assertIsNone(wr()) | |
| def testAssertNotRegex(self): | |
| self.assertNotRegex('Ala ma kota', r'r+') | |
| try: | |
| self.assertNotRegex('Ala ma kota', r'k.t', 'Message') | |
| except self.failureException as e: | |
| self.assertIn('Message', e.args[0]) | |
| else: | |
| self.fail('assertNotRegex should have failed.') | |
| class TestLongMessage(unittest.TestCase): | |
| """Test that the individual asserts honour longMessage. | |
| This actually tests all the message behaviour for | |
| asserts that use longMessage.""" | |
| def setUp(self): | |
| class TestableTestFalse(unittest.TestCase): | |
| longMessage = False | |
| failureException = self.failureException | |
| def testTest(self): | |
| pass | |
| class TestableTestTrue(unittest.TestCase): | |
| longMessage = True | |
| failureException = self.failureException | |
| def testTest(self): | |
| pass | |
| self.testableTrue = TestableTestTrue('testTest') | |
| self.testableFalse = TestableTestFalse('testTest') | |
| def testDefault(self): | |
| self.assertTrue(unittest.TestCase.longMessage) | |
| def test_formatMsg(self): | |
| self.assertEqual(self.testableFalse._formatMessage(None, "foo"), "foo") | |
| self.assertEqual(self.testableFalse._formatMessage("foo", "bar"), "foo") | |
| self.assertEqual(self.testableTrue._formatMessage(None, "foo"), "foo") | |
| self.assertEqual(self.testableTrue._formatMessage("foo", "bar"), "bar : foo") | |
| # This blows up if _formatMessage uses string concatenation | |
| self.testableTrue._formatMessage(object(), 'foo') | |
| def test_formatMessage_unicode_error(self): | |
| one = ''.join(chr(i) for i in range(255)) | |
| # this used to cause a UnicodeDecodeError constructing msg | |
| self.testableTrue._formatMessage(one, '\uFFFD') | |
| def assertMessages(self, methodName, args, errors): | |
| """ | |
| Check that methodName(*args) raises the correct error messages. | |
| errors should be a list of 4 regex that match the error when: | |
| 1) longMessage = False and no msg passed; | |
| 2) longMessage = False and msg passed; | |
| 3) longMessage = True and no msg passed; | |
| 4) longMessage = True and msg passed; | |
| """ | |
| def getMethod(i): | |
| useTestableFalse = i < 2 | |
| if useTestableFalse: | |
| test = self.testableFalse | |
| else: | |
| test = self.testableTrue | |
| return getattr(test, methodName) | |
| for i, expected_regex in enumerate(errors): | |
| testMethod = getMethod(i) | |
| kwargs = {} | |
| withMsg = i % 2 | |
| if withMsg: | |
| kwargs = {"msg": "oops"} | |
| with self.assertRaisesRegex(self.failureException, | |
| expected_regex=expected_regex): | |
| testMethod(*args, **kwargs) | |
| def testAssertTrue(self): | |
| self.assertMessages('assertTrue', (False,), | |
| ["^False is not true$", "^oops$", "^False is not true$", | |
| "^False is not true : oops$"]) | |
| def testAssertFalse(self): | |
| self.assertMessages('assertFalse', (True,), | |
| ["^True is not false$", "^oops$", "^True is not false$", | |
| "^True is not false : oops$"]) | |
| def testNotEqual(self): | |
| self.assertMessages('assertNotEqual', (1, 1), | |
| ["^1 == 1$", "^oops$", "^1 == 1$", | |
| "^1 == 1 : oops$"]) | |
| def testAlmostEqual(self): | |
| self.assertMessages( | |
| 'assertAlmostEqual', (1, 2), | |
| [r"^1 != 2 within 7 places \(1 difference\)$", "^oops$", | |
| r"^1 != 2 within 7 places \(1 difference\)$", | |
| r"^1 != 2 within 7 places \(1 difference\) : oops$"]) | |
| def testNotAlmostEqual(self): | |
| self.assertMessages('assertNotAlmostEqual', (1, 1), | |
| ["^1 == 1 within 7 places$", "^oops$", | |
| "^1 == 1 within 7 places$", "^1 == 1 within 7 places : oops$"]) | |
| def test_baseAssertEqual(self): | |
| self.assertMessages('_baseAssertEqual', (1, 2), | |
| ["^1 != 2$", "^oops$", "^1 != 2$", "^1 != 2 : oops$"]) | |
| def testAssertSequenceEqual(self): | |
| # Error messages are multiline so not testing on full message | |
| # assertTupleEqual and assertListEqual delegate to this method | |
| self.assertMessages('assertSequenceEqual', ([], [None]), | |
| [r"\+ \[None\]$", "^oops$", r"\+ \[None\]$", | |
| r"\+ \[None\] : oops$"]) | |
| def testAssertSetEqual(self): | |
| self.assertMessages('assertSetEqual', (set(), set([None])), | |
| ["None$", "^oops$", "None$", | |
| "None : oops$"]) | |
| def testAssertIn(self): | |
| self.assertMessages('assertIn', (None, []), | |
| [r'^None not found in \[\]$', "^oops$", | |
| r'^None not found in \[\]$', | |
| r'^None not found in \[\] : oops$']) | |
| def testAssertNotIn(self): | |
| self.assertMessages('assertNotIn', (None, [None]), | |
| [r'^None unexpectedly found in \[None\]$', "^oops$", | |
| r'^None unexpectedly found in \[None\]$', | |
| r'^None unexpectedly found in \[None\] : oops$']) | |
| def testAssertDictEqual(self): | |
| self.assertMessages('assertDictEqual', ({}, {'key': 'value'}), | |
| [r"\+ \{'key': 'value'\}$", "^oops$", | |
| r"\+ \{'key': 'value'\}$", | |
| r"\+ \{'key': 'value'\} : oops$"]) | |
| def testAssertMultiLineEqual(self): | |
| self.assertMessages('assertMultiLineEqual', ("", "foo"), | |
| [r"\+ foo\n$", "^oops$", | |
| r"\+ foo\n$", | |
| r"\+ foo\n : oops$"]) | |
| def testAssertLess(self): | |
| self.assertMessages('assertLess', (2, 1), | |
| ["^2 not less than 1$", "^oops$", | |
| "^2 not less than 1$", "^2 not less than 1 : oops$"]) | |
| def testAssertLessEqual(self): | |
| self.assertMessages('assertLessEqual', (2, 1), | |
| ["^2 not less than or equal to 1$", "^oops$", | |
| "^2 not less than or equal to 1$", | |
| "^2 not less than or equal to 1 : oops$"]) | |
| def testAssertGreater(self): | |
| self.assertMessages('assertGreater', (1, 2), | |
| ["^1 not greater than 2$", "^oops$", | |
| "^1 not greater than 2$", | |
| "^1 not greater than 2 : oops$"]) | |
| def testAssertGreaterEqual(self): | |
| self.assertMessages('assertGreaterEqual', (1, 2), | |
| ["^1 not greater than or equal to 2$", "^oops$", | |
| "^1 not greater than or equal to 2$", | |
| "^1 not greater than or equal to 2 : oops$"]) | |
| def testAssertIsNone(self): | |
| self.assertMessages('assertIsNone', ('not None',), | |
| ["^'not None' is not None$", "^oops$", | |
| "^'not None' is not None$", | |
| "^'not None' is not None : oops$"]) | |
| def testAssertIsNotNone(self): | |
| self.assertMessages('assertIsNotNone', (None,), | |
| ["^unexpectedly None$", "^oops$", | |
| "^unexpectedly None$", | |
| "^unexpectedly None : oops$"]) | |
| def testAssertIs(self): | |
| self.assertMessages('assertIs', (None, 'foo'), | |
| ["^None is not 'foo'$", "^oops$", | |
| "^None is not 'foo'$", | |
| "^None is not 'foo' : oops$"]) | |
| def testAssertIsNot(self): | |
| self.assertMessages('assertIsNot', (None, None), | |
| ["^unexpectedly identical: None$", "^oops$", | |
| "^unexpectedly identical: None$", | |
| "^unexpectedly identical: None : oops$"]) | |
| def testAssertRegex(self): | |
| self.assertMessages('assertRegex', ('foo', 'bar'), | |
| ["^Regex didn't match:", | |
| "^oops$", | |
| "^Regex didn't match:", | |
| "^Regex didn't match: (.*) : oops$"]) | |
| def testAssertNotRegex(self): | |
| self.assertMessages('assertNotRegex', ('foo', 'foo'), | |
| ["^Regex matched:", | |
| "^oops$", | |
| "^Regex matched:", | |
| "^Regex matched: (.*) : oops$"]) | |
| def assertMessagesCM(self, methodName, args, func, errors): | |
| """ | |
| Check that the correct error messages are raised while executing: | |
| with method(*args): | |
| func() | |
| *errors* should be a list of 4 regex that match the error when: | |
| 1) longMessage = False and no msg passed; | |
| 2) longMessage = False and msg passed; | |
| 3) longMessage = True and no msg passed; | |
| 4) longMessage = True and msg passed; | |
| """ | |
| p = product((self.testableFalse, self.testableTrue), | |
| ({}, {"msg": "oops"})) | |
| for (cls, kwargs), err in zip(p, errors): | |
| method = getattr(cls, methodName) | |
| with self.assertRaisesRegex(cls.failureException, err): | |
| with method(*args, **kwargs) as cm: | |
| func() | |
| def testAssertRaises(self): | |
| self.assertMessagesCM('assertRaises', (TypeError,), lambda: None, | |
| ['^TypeError not raised$', '^oops$', | |
| '^TypeError not raised$', | |
| '^TypeError not raised : oops$']) | |
| def testAssertRaisesRegex(self): | |
| # test error not raised | |
| self.assertMessagesCM('assertRaisesRegex', (TypeError, 'unused regex'), | |
| lambda: None, | |
| ['^TypeError not raised$', '^oops$', | |
| '^TypeError not raised$', | |
| '^TypeError not raised : oops$']) | |
| # test error raised but with wrong message | |
| def raise_wrong_message(): | |
| raise TypeError('foo') | |
| self.assertMessagesCM('assertRaisesRegex', (TypeError, 'regex'), | |
| raise_wrong_message, | |
| ['^"regex" does not match "foo"$', '^oops$', | |
| '^"regex" does not match "foo"$', | |
| '^"regex" does not match "foo" : oops$']) | |
| def testAssertWarns(self): | |
| self.assertMessagesCM('assertWarns', (UserWarning,), lambda: None, | |
| ['^UserWarning not triggered$', '^oops$', | |
| '^UserWarning not triggered$', | |
| '^UserWarning not triggered : oops$']) | |
| def test_assertNotWarns(self): | |
| def warn_future(): | |
| warnings.warn('xyz', FutureWarning, stacklevel=2) | |
| self.assertMessagesCM('_assertNotWarns', (FutureWarning,), | |
| warn_future, | |
| ['^FutureWarning triggered$', | |
| '^oops$', | |
| '^FutureWarning triggered$', | |
| '^FutureWarning triggered : oops$']) | |
| def testAssertWarnsRegex(self): | |
| # test error not raised | |
| self.assertMessagesCM('assertWarnsRegex', (UserWarning, 'unused regex'), | |
| lambda: None, | |
| ['^UserWarning not triggered$', '^oops$', | |
| '^UserWarning not triggered$', | |
| '^UserWarning not triggered : oops$']) | |
| # test warning raised but with wrong message | |
| def raise_wrong_message(): | |
| warnings.warn('foo') | |
| with self.assertWarnsRegex(UserWarning, 'foo'): | |
| self.assertMessagesCM('assertWarnsRegex', (UserWarning, 'regex'), | |
| raise_wrong_message, | |
| ['^"regex" does not match "foo"$', '^oops$', | |
| '^"regex" does not match "foo"$', | |
| '^"regex" does not match "foo" : oops$']) | |
| if __name__ == "__main__": | |
| unittest.main() |