python/mock-1.0.0/tests/testcallable.py

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/python/mock-1.0.0/tests/testcallable.py	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,158 @@
     1.4 +# Copyright (C) 2007-2012 Michael Foord & the mock team
     1.5 +# E-mail: fuzzyman AT voidspace DOT org DOT uk
     1.6 +# http://www.voidspace.org.uk/python/mock/
     1.7 +
     1.8 +from tests.support import is_instance, unittest2, X, SomeClass
     1.9 +
    1.10 +from mock import (
    1.11 +    Mock, MagicMock, NonCallableMagicMock,
    1.12 +    NonCallableMock, patch, create_autospec,
    1.13 +    CallableMixin
    1.14 +)
    1.15 +
    1.16 +
    1.17 +
    1.18 +class TestCallable(unittest2.TestCase):
    1.19 +
    1.20 +    def assertNotCallable(self, mock):
    1.21 +        self.assertTrue(is_instance(mock, NonCallableMagicMock))
    1.22 +        self.assertFalse(is_instance(mock, CallableMixin))
    1.23 +
    1.24 +
    1.25 +    def test_non_callable(self):
    1.26 +        for mock in NonCallableMagicMock(), NonCallableMock():
    1.27 +            self.assertRaises(TypeError, mock)
    1.28 +            self.assertFalse(hasattr(mock, '__call__'))
    1.29 +            self.assertIn(mock.__class__.__name__, repr(mock))
    1.30 +
    1.31 +
    1.32 +    def test_heirarchy(self):
    1.33 +        self.assertTrue(issubclass(MagicMock, Mock))
    1.34 +        self.assertTrue(issubclass(NonCallableMagicMock, NonCallableMock))
    1.35 +
    1.36 +
    1.37 +    def test_attributes(self):
    1.38 +        one = NonCallableMock()
    1.39 +        self.assertTrue(issubclass(type(one.one), Mock))
    1.40 +
    1.41 +        two = NonCallableMagicMock()
    1.42 +        self.assertTrue(issubclass(type(two.two), MagicMock))
    1.43 +
    1.44 +
    1.45 +    def test_subclasses(self):
    1.46 +        class MockSub(Mock):
    1.47 +            pass
    1.48 +
    1.49 +        one = MockSub()
    1.50 +        self.assertTrue(issubclass(type(one.one), MockSub))
    1.51 +
    1.52 +        class MagicSub(MagicMock):
    1.53 +            pass
    1.54 +
    1.55 +        two = MagicSub()
    1.56 +        self.assertTrue(issubclass(type(two.two), MagicSub))
    1.57 +
    1.58 +
    1.59 +    def test_patch_spec(self):
    1.60 +        patcher = patch('%s.X' % __name__, spec=True)
    1.61 +        mock = patcher.start()
    1.62 +        self.addCleanup(patcher.stop)
    1.63 +
    1.64 +        instance = mock()
    1.65 +        mock.assert_called_once_with()
    1.66 +
    1.67 +        self.assertNotCallable(instance)
    1.68 +        self.assertRaises(TypeError, instance)
    1.69 +
    1.70 +
    1.71 +    def test_patch_spec_set(self):
    1.72 +        patcher = patch('%s.X' % __name__, spec_set=True)
    1.73 +        mock = patcher.start()
    1.74 +        self.addCleanup(patcher.stop)
    1.75 +
    1.76 +        instance = mock()
    1.77 +        mock.assert_called_once_with()
    1.78 +
    1.79 +        self.assertNotCallable(instance)
    1.80 +        self.assertRaises(TypeError, instance)
    1.81 +
    1.82 +
    1.83 +    def test_patch_spec_instance(self):
    1.84 +        patcher = patch('%s.X' % __name__, spec=X())
    1.85 +        mock = patcher.start()
    1.86 +        self.addCleanup(patcher.stop)
    1.87 +
    1.88 +        self.assertNotCallable(mock)
    1.89 +        self.assertRaises(TypeError, mock)
    1.90 +
    1.91 +
    1.92 +    def test_patch_spec_set_instance(self):
    1.93 +        patcher = patch('%s.X' % __name__, spec_set=X())
    1.94 +        mock = patcher.start()
    1.95 +        self.addCleanup(patcher.stop)
    1.96 +
    1.97 +        self.assertNotCallable(mock)
    1.98 +        self.assertRaises(TypeError, mock)
    1.99 +
   1.100 +
   1.101 +    def test_patch_spec_callable_class(self):
   1.102 +        class CallableX(X):
   1.103 +            def __call__(self):
   1.104 +                pass
   1.105 +
   1.106 +        class Sub(CallableX):
   1.107 +            pass
   1.108 +
   1.109 +        class Multi(SomeClass, Sub):
   1.110 +            pass
   1.111 +
   1.112 +        class OldStyle:
   1.113 +            def __call__(self):
   1.114 +                pass
   1.115 +
   1.116 +        class OldStyleSub(OldStyle):
   1.117 +            pass
   1.118 +
   1.119 +        for arg in 'spec', 'spec_set':
   1.120 +            for Klass in CallableX, Sub, Multi, OldStyle, OldStyleSub:
   1.121 +                patcher = patch('%s.X' % __name__, **{arg: Klass})
   1.122 +                mock = patcher.start()
   1.123 +
   1.124 +                try:
   1.125 +                    instance = mock()
   1.126 +                    mock.assert_called_once_with()
   1.127 +
   1.128 +                    self.assertTrue(is_instance(instance, MagicMock))
   1.129 +                    # inherited spec
   1.130 +                    self.assertRaises(AttributeError, getattr, instance,
   1.131 +                                      'foobarbaz')
   1.132 +
   1.133 +                    result = instance()
   1.134 +                    # instance is callable, result has no spec
   1.135 +                    instance.assert_called_once_with()
   1.136 +
   1.137 +                    result(3, 2, 1)
   1.138 +                    result.assert_called_once_with(3, 2, 1)
   1.139 +                    result.foo(3, 2, 1)
   1.140 +                    result.foo.assert_called_once_with(3, 2, 1)
   1.141 +                finally:
   1.142 +                    patcher.stop()
   1.143 +
   1.144 +
   1.145 +    def test_create_autopsec(self):
   1.146 +        mock = create_autospec(X)
   1.147 +        instance = mock()
   1.148 +        self.assertRaises(TypeError, instance)
   1.149 +
   1.150 +        mock = create_autospec(X())
   1.151 +        self.assertRaises(TypeError, mock)
   1.152 +
   1.153 +
   1.154 +    def test_create_autospec_instance(self):
   1.155 +        mock = create_autospec(SomeClass, instance=True)
   1.156 +
   1.157 +        self.assertRaises(TypeError, mock)
   1.158 +        mock.wibble()
   1.159 +        mock.wibble.assert_called_once_with()
   1.160 +
   1.161 +        self.assertRaises(TypeError, mock.wibble, 'some',  'args')

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