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How to use oops method in hypothesis

Best Python code snippet using hypothesis
test_assertions.py
Source:test_assertions.py
1import datetime2import warnings3import weakref4import unittest5from itertools import product6class Test_Assertions(unittest.TestCase):7    def test_AlmostEqual(self):8        self.assertAlmostEqual(1.00000001, 1.0)9        self.assertNotAlmostEqual(1.0000001, 1.0)10        self.assertRaises(self.failureException,11                          self.assertAlmostEqual, 1.0000001, 1.0)12        self.assertRaises(self.failureException,13                          self.assertNotAlmostEqual, 1.00000001, 1.0)14        self.assertAlmostEqual(1.1, 1.0, places=0)15        self.assertRaises(self.failureException,16                          self.assertAlmostEqual, 1.1, 1.0, places=1)17        self.assertAlmostEqual(0, .1 + .1j, places=0)18        self.assertNotAlmostEqual(0, .1 + .1j, places=1)19        self.assertRaises(self.failureException,20                          self.assertAlmostEqual, 0, .1 + .1j, places=1)21        self.assertRaises(self.failureException,22                          self.assertNotAlmostEqual, 0, .1 + .1j, places=0)23        self.assertAlmostEqual(float('inf'), float('inf'))24        self.assertRaises(self.failureException, self.assertNotAlmostEqual,25                          float('inf'), float('inf'))26    def test_AmostEqualWithDelta(self):27        self.assertAlmostEqual(1.1, 1.0, delta=0.5)28        self.assertAlmostEqual(1.0, 1.1, delta=0.5)29        self.assertNotAlmostEqual(1.1, 1.0, delta=0.05)30        self.assertNotAlmostEqual(1.0, 1.1, delta=0.05)31        self.assertAlmostEqual(1.0, 1.0, delta=0.5)32        self.assertRaises(self.failureException, self.assertNotAlmostEqual,33                          1.0, 1.0, delta=0.5)34        self.assertRaises(self.failureException, self.assertAlmostEqual,35                          1.1, 1.0, delta=0.05)36        self.assertRaises(self.failureException, self.assertNotAlmostEqual,37                          1.1, 1.0, delta=0.5)38        self.assertRaises(TypeError, self.assertAlmostEqual,39                          1.1, 1.0, places=2, delta=2)40        self.assertRaises(TypeError, self.assertNotAlmostEqual,41                          1.1, 1.0, places=2, delta=2)42        first = datetime.datetime.now()43        second = first + datetime.timedelta(seconds=10)44        self.assertAlmostEqual(first, second,45                               delta=datetime.timedelta(seconds=20))46        self.assertNotAlmostEqual(first, second,47                                  delta=datetime.timedelta(seconds=5))48    def test_assertRaises(self):49        def _raise(e):50            raise e51        self.assertRaises(KeyError, _raise, KeyError)52        self.assertRaises(KeyError, _raise, KeyError("key"))53        try:54            self.assertRaises(KeyError, lambda: None)55        except self.failureException as e:56            self.assertIn("KeyError not raised", str(e))57        else:58            self.fail("assertRaises() didn't fail")59        try:60            self.assertRaises(KeyError, _raise, ValueError)61        except ValueError:62            pass63        else:64            self.fail("assertRaises() didn't let exception pass through")65        with self.assertRaises(KeyError) as cm:66            try:67                raise KeyError68            except Exception as e:69                exc = e70                raise71        self.assertIs(cm.exception, exc)72        with self.assertRaises(KeyError):73            raise KeyError("key")74        try:75            with self.assertRaises(KeyError):76                pass77        except self.failureException as e:78            self.assertIn("KeyError not raised", str(e))79        else:80            self.fail("assertRaises() didn't fail")81        try:82            with self.assertRaises(KeyError):83                raise ValueError84        except ValueError:85            pass86        else:87            self.fail("assertRaises() didn't let exception pass through")88    def test_assertRaises_frames_survival(self):89        # Issue #9815: assertRaises should avoid keeping local variables90        # in a traceback alive.91        class A:92            pass93        wr = None94        class Foo(unittest.TestCase):95            def foo(self):96                nonlocal wr97                a = A()98                wr = weakref.ref(a)99                try:100                    raise OSError101                except OSError:102                    raise ValueError103            def test_functional(self):104                self.assertRaises(ValueError, self.foo)105            def test_with(self):106                with self.assertRaises(ValueError):107                    self.foo()108        Foo("test_functional").run()109        self.assertIsNone(wr())110        Foo("test_with").run()111        self.assertIsNone(wr())112    def testAssertNotRegex(self):113        self.assertNotRegex('Ala ma kota', r'r+')114        try:115            self.assertNotRegex('Ala ma kota', r'k.t', 'Message')116        except self.failureException as e:117            self.assertIn('Message', e.args[0])118        else:119            self.fail('assertNotRegex should have failed.')120class TestLongMessage(unittest.TestCase):121    """Test that the individual asserts honour longMessage.122    This actually tests all the message behaviour for123    asserts that use longMessage."""124    def setUp(self):125        class TestableTestFalse(unittest.TestCase):126            longMessage = False127            failureException = self.failureException128            def testTest(self):129                pass130        class TestableTestTrue(unittest.TestCase):131            longMessage = True132            failureException = self.failureException133            def testTest(self):134                pass135        self.testableTrue = TestableTestTrue('testTest')136        self.testableFalse = TestableTestFalse('testTest')137    def testDefault(self):138        self.assertTrue(unittest.TestCase.longMessage)139    def test_formatMsg(self):140        self.assertEqual(self.testableFalse._formatMessage(None, "foo"), "foo")141        self.assertEqual(self.testableFalse._formatMessage("foo", "bar"), "foo")142        self.assertEqual(self.testableTrue._formatMessage(None, "foo"), "foo")143        self.assertEqual(self.testableTrue._formatMessage("foo", "bar"), "bar : foo")144        # This blows up if _formatMessage uses string concatenation145        self.testableTrue._formatMessage(object(), 'foo')146    def test_formatMessage_unicode_error(self):147        one = ''.join(chr(i) for i in range(255))148        # this used to cause a UnicodeDecodeError constructing msg149        self.testableTrue._formatMessage(one, '\uFFFD')150    def assertMessages(self, methodName, args, errors):151        """152        Check that methodName(*args) raises the correct error messages.153        errors should be a list of 4 regex that match the error when:154          1) longMessage = False and no msg passed;155          2) longMessage = False and msg passed;156          3) longMessage = True and no msg passed;157          4) longMessage = True and msg passed;158        """159        def getMethod(i):160            useTestableFalse = i < 2161            if useTestableFalse:162                test = self.testableFalse163            else:164                test = self.testableTrue165            return getattr(test, methodName)166        for i, expected_regex in enumerate(errors):167            testMethod = getMethod(i)168            kwargs = {}169            withMsg = i % 2170            if withMsg:171                kwargs = {"msg": "oops"}172            with self.assertRaisesRegex(self.failureException,173                                        expected_regex=expected_regex):174                testMethod(*args, **kwargs)175    def testAssertTrue(self):176        self.assertMessages('assertTrue', (False,),177                            ["^False is not true$", "^oops$", "^False is not true$",178                             "^False is not true : oops$"])179    def testAssertFalse(self):180        self.assertMessages('assertFalse', (True,),181                            ["^True is not false$", "^oops$", "^True is not false$",182                             "^True is not false : oops$"])183    def testNotEqual(self):184        self.assertMessages('assertNotEqual', (1, 1),185                            ["^1 == 1$", "^oops$", "^1 == 1$",186                             "^1 == 1 : oops$"])187    def testAlmostEqual(self):188        self.assertMessages(189            'assertAlmostEqual', (1, 2),190            [r"^1 != 2 within 7 places \(1 difference\)$", "^oops$",191             r"^1 != 2 within 7 places \(1 difference\)$",192             r"^1 != 2 within 7 places \(1 difference\) : oops$"])193    def testNotAlmostEqual(self):194        self.assertMessages('assertNotAlmostEqual', (1, 1),195                            ["^1 == 1 within 7 places$", "^oops$",196                             "^1 == 1 within 7 places$", "^1 == 1 within 7 places : oops$"])197    def test_baseAssertEqual(self):198        self.assertMessages('_baseAssertEqual', (1, 2),199                            ["^1 != 2$", "^oops$", "^1 != 2$", "^1 != 2 : oops$"])200    def testAssertSequenceEqual(self):201        # Error messages are multiline so not testing on full message202        # assertTupleEqual and assertListEqual delegate to this method203        self.assertMessages('assertSequenceEqual', ([], [None]),204                            [r"\+ \[None\]$", "^oops$", r"\+ \[None\]$",205                             r"\+ \[None\] : oops$"])206    def testAssertSetEqual(self):207        self.assertMessages('assertSetEqual', (set(), set([None])),208                            ["None$", "^oops$", "None$",209                             "None : oops$"])210    def testAssertIn(self):211        self.assertMessages('assertIn', (None, []),212                            [r'^None not found in \[\]$', "^oops$",213                             r'^None not found in \[\]$',214                             r'^None not found in \[\] : oops$'])215    def testAssertNotIn(self):216        self.assertMessages('assertNotIn', (None, [None]),217                            [r'^None unexpectedly found in \[None\]$', "^oops$",218                             r'^None unexpectedly found in \[None\]$',219                             r'^None unexpectedly found in \[None\] : oops$'])220    def testAssertDictEqual(self):221        self.assertMessages('assertDictEqual', ({}, {'key': 'value'}),222                            [r"\+ \{'key': 'value'\}$", "^oops$",223                             r"\+ \{'key': 'value'\}$",224                             r"\+ \{'key': 'value'\} : oops$"])225    def testAssertDictContainsSubset(self):226        with warnings.catch_warnings():227            warnings.simplefilter("ignore", DeprecationWarning)228            self.assertMessages('assertDictContainsSubset', ({'key': 'value'}, {}),229                                ["^Missing: 'key'$", "^oops$",230                                 "^Missing: 'key'$",231                                 "^Missing: 'key' : oops$"])232    def testAssertMultiLineEqual(self):233        self.assertMessages('assertMultiLineEqual', ("", "foo"),234                            [r"\+ foo$", "^oops$",235                             r"\+ foo$",236                             r"\+ foo : oops$"])237    def testAssertLess(self):238        self.assertMessages('assertLess', (2, 1),239                            ["^2 not less than 1$", "^oops$",240                             "^2 not less than 1$", "^2 not less than 1 : oops$"])241    def testAssertLessEqual(self):242        self.assertMessages('assertLessEqual', (2, 1),243                            ["^2 not less than or equal to 1$", "^oops$",244                             "^2 not less than or equal to 1$",245                             "^2 not less than or equal to 1 : oops$"])246    def testAssertGreater(self):247        self.assertMessages('assertGreater', (1, 2),248                            ["^1 not greater than 2$", "^oops$",249                             "^1 not greater than 2$",250                             "^1 not greater than 2 : oops$"])251    def testAssertGreaterEqual(self):252        self.assertMessages('assertGreaterEqual', (1, 2),253                            ["^1 not greater than or equal to 2$", "^oops$",254                             "^1 not greater than or equal to 2$",255                             "^1 not greater than or equal to 2 : oops$"])256    def testAssertIsNone(self):257        self.assertMessages('assertIsNone', ('not None',),258                            ["^'not None' is not None$", "^oops$",259                             "^'not None' is not None$",260                             "^'not None' is not None : oops$"])261    def testAssertIsNotNone(self):262        self.assertMessages('assertIsNotNone', (None,),263                            ["^unexpectedly None$", "^oops$",264                             "^unexpectedly None$",265                             "^unexpectedly None : oops$"])266    def testAssertIs(self):267        self.assertMessages('assertIs', (None, 'foo'),268                            ["^None is not 'foo'$", "^oops$",269                             "^None is not 'foo'$",270                             "^None is not 'foo' : oops$"])271    def testAssertIsNot(self):272        self.assertMessages('assertIsNot', (None, None),273                            ["^unexpectedly identical: None$", "^oops$",274                             "^unexpectedly identical: None$",275                             "^unexpectedly identical: None : oops$"])276    def testAssertRegex(self):277        self.assertMessages('assertRegex', ('foo', 'bar'),278                            ["^Regex didn't match:",279                             "^oops$",280                             "^Regex didn't match:",281                             "^Regex didn't match: (.*) : oops$"])282    def testAssertNotRegex(self):283        self.assertMessages('assertNotRegex', ('foo', 'foo'),284                            ["^Regex matched:",285                             "^oops$",286                             "^Regex matched:",287                             "^Regex matched: (.*) : oops$"])288    def assertMessagesCM(self, methodName, args, func, errors):289        """290        Check that the correct error messages are raised while executing:291          with method(*args):292              func()293        *errors* should be a list of 4 regex that match the error when:294          1) longMessage = False and no msg passed;295          2) longMessage = False and msg passed;296          3) longMessage = True and no msg passed;297          4) longMessage = True and msg passed;298        """299        p = product((self.testableFalse, self.testableTrue),300                    ({}, {"msg": "oops"}))301        for (cls, kwargs), err in zip(p, errors):302            method = getattr(cls, methodName)303            with self.assertRaisesRegex(cls.failureException, err):304                with method(*args, **kwargs) as cm:305                    func()306    def testAssertRaises(self):307        self.assertMessagesCM('assertRaises', (TypeError,), lambda: None,308                              ['^TypeError not raised$', '^oops$',309                               '^TypeError not raised$',310                               '^TypeError not raised : oops$'])311    def testAssertRaisesRegex(self):312        # test error not raised313        self.assertMessagesCM('assertRaisesRegex', (TypeError, 'unused regex'),314                              lambda: None,315                              ['^TypeError not raised$', '^oops$',316                               '^TypeError not raised$',317                               '^TypeError not raised : oops$'])318        # test error raised but with wrong message319        def raise_wrong_message():320            raise TypeError('foo')321        self.assertMessagesCM('assertRaisesRegex', (TypeError, 'regex'),322                              raise_wrong_message,323                              ['^"regex" does not match "foo"$', '^oops$',324                               '^"regex" does not match "foo"$',325                               '^"regex" does not match "foo" : oops$'])326    def testAssertWarns(self):327        self.assertMessagesCM('assertWarns', (UserWarning,), lambda: None,328                              ['^UserWarning not triggered$', '^oops$',329                               '^UserWarning not triggered$',330                               '^UserWarning not triggered : oops$'])331    def testAssertWarnsRegex(self):332        # test error not raised333        self.assertMessagesCM('assertWarnsRegex', (UserWarning, 'unused regex'),334                              lambda: None,335                              ['^UserWarning not triggered$', '^oops$',336                               '^UserWarning not triggered$',337                               '^UserWarning not triggered : oops$'])338        # test warning raised but with wrong message339        def raise_wrong_message():340            warnings.warn('foo')341        self.assertMessagesCM('assertWarnsRegex', (UserWarning, 'regex'),342                              raise_wrong_message,343                              ['^"regex" does not match "foo"$', '^oops$',344                               '^"regex" does not match "foo"$',345                               '^"regex" does not match "foo" : oops$'])346if __name__ == "__main__":...
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