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diff --git a/python/mock-1.0.0/tests/testpatch.py b/python/mock-1.0.0/tests/testpatch.py
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+# Copyright (C) 2007-2012 Michael Foord & the mock team
+# E-mail: fuzzyman AT voidspace DOT org DOT uk
+# http://www.voidspace.org.uk/python/mock/
+
+import os
+import sys
+
+from tests import support
+from tests.support import unittest2, inPy3k, SomeClass, is_instance, callable
+
+from mock import (
+ NonCallableMock, CallableMixin, patch, sentinel,
+ MagicMock, Mock, NonCallableMagicMock, patch, _patch,
+ DEFAULT, call, _get_target
+)
+
+builtin_string = '__builtin__'
+if inPy3k:
+ builtin_string = 'builtins'
+ unicode = str
+
+PTModule = sys.modules[__name__]
+MODNAME = '%s.PTModule' % __name__
+
+
+def _get_proxy(obj, get_only=True):
+ class Proxy(object):
+ def __getattr__(self, name):
+ return getattr(obj, name)
+ if not get_only:
+ def __setattr__(self, name, value):
+ setattr(obj, name, value)
+ def __delattr__(self, name):
+ delattr(obj, name)
+ Proxy.__setattr__ = __setattr__
+ Proxy.__delattr__ = __delattr__
+ return Proxy()
+
+
+# for use in the test
+something = sentinel.Something
+something_else = sentinel.SomethingElse
+
+
+class Foo(object):
+ def __init__(self, a):
+ pass
+ def f(self, a):
+ pass
+ def g(self):
+ pass
+ foo = 'bar'
+
+ class Bar(object):
+ def a(self):
+ pass
+
+foo_name = '%s.Foo' % __name__
+
+
+def function(a, b=Foo):
+ pass
+
+
+class Container(object):
+ def __init__(self):
+ self.values = {}
+
+ def __getitem__(self, name):
+ return self.values[name]
+
+ def __setitem__(self, name, value):
+ self.values[name] = value
+
+ def __delitem__(self, name):
+ del self.values[name]
+
+ def __iter__(self):
+ return iter(self.values)
+
+
+
+class PatchTest(unittest2.TestCase):
+
+ def assertNotCallable(self, obj, magic=True):
+ MockClass = NonCallableMagicMock
+ if not magic:
+ MockClass = NonCallableMock
+
+ self.assertRaises(TypeError, obj)
+ self.assertTrue(is_instance(obj, MockClass))
+ self.assertFalse(is_instance(obj, CallableMixin))
+
+
+ def test_single_patchobject(self):
+ class Something(object):
+ attribute = sentinel.Original
+
+ @patch.object(Something, 'attribute', sentinel.Patched)
+ def test():
+ self.assertEqual(Something.attribute, sentinel.Patched, "unpatched")
+
+ test()
+ self.assertEqual(Something.attribute, sentinel.Original,
+ "patch not restored")
+
+
+ def test_patchobject_with_none(self):
+ class Something(object):
+ attribute = sentinel.Original
+
+ @patch.object(Something, 'attribute', None)
+ def test():
+ self.assertIsNone(Something.attribute, "unpatched")
+
+ test()
+ self.assertEqual(Something.attribute, sentinel.Original,
+ "patch not restored")
+
+
+ def test_multiple_patchobject(self):
+ class Something(object):
+ attribute = sentinel.Original
+ next_attribute = sentinel.Original2
+
+ @patch.object(Something, 'attribute', sentinel.Patched)
+ @patch.object(Something, 'next_attribute', sentinel.Patched2)
+ def test():
+ self.assertEqual(Something.attribute, sentinel.Patched,
+ "unpatched")
+ self.assertEqual(Something.next_attribute, sentinel.Patched2,
+ "unpatched")
+
+ test()
+ self.assertEqual(Something.attribute, sentinel.Original,
+ "patch not restored")
+ self.assertEqual(Something.next_attribute, sentinel.Original2,
+ "patch not restored")
+
+
+ def test_object_lookup_is_quite_lazy(self):
+ global something
+ original = something
+ @patch('%s.something' % __name__, sentinel.Something2)
+ def test():
+ pass
+
+ try:
+ something = sentinel.replacement_value
+ test()
+ self.assertEqual(something, sentinel.replacement_value)
+ finally:
+ something = original
+
+
+ def test_patch(self):
+ @patch('%s.something' % __name__, sentinel.Something2)
+ def test():
+ self.assertEqual(PTModule.something, sentinel.Something2,
+ "unpatched")
+
+ test()
+ self.assertEqual(PTModule.something, sentinel.Something,
+ "patch not restored")
+
+ @patch('%s.something' % __name__, sentinel.Something2)
+ @patch('%s.something_else' % __name__, sentinel.SomethingElse)
+ def test():
+ self.assertEqual(PTModule.something, sentinel.Something2,
+ "unpatched")
+ self.assertEqual(PTModule.something_else, sentinel.SomethingElse,
+ "unpatched")
+
+ self.assertEqual(PTModule.something, sentinel.Something,
+ "patch not restored")
+ self.assertEqual(PTModule.something_else, sentinel.SomethingElse,
+ "patch not restored")
+
+ # Test the patching and restoring works a second time
+ test()
+
+ self.assertEqual(PTModule.something, sentinel.Something,
+ "patch not restored")
+ self.assertEqual(PTModule.something_else, sentinel.SomethingElse,
+ "patch not restored")
+
+ mock = Mock()
+ mock.return_value = sentinel.Handle
+ @patch('%s.open' % builtin_string, mock)
+ def test():
+ self.assertEqual(open('filename', 'r'), sentinel.Handle,
+ "open not patched")
+ test()
+ test()
+
+ self.assertNotEqual(open, mock, "patch not restored")
+
+
+ def test_patch_class_attribute(self):
+ @patch('%s.SomeClass.class_attribute' % __name__,
+ sentinel.ClassAttribute)
+ def test():
+ self.assertEqual(PTModule.SomeClass.class_attribute,
+ sentinel.ClassAttribute, "unpatched")
+ test()
+
+ self.assertIsNone(PTModule.SomeClass.class_attribute,
+ "patch not restored")
+
+
+ def test_patchobject_with_default_mock(self):
+ class Test(object):
+ something = sentinel.Original
+ something2 = sentinel.Original2
+
+ @patch.object(Test, 'something')
+ def test(mock):
+ self.assertEqual(mock, Test.something,
+ "Mock not passed into test function")
+ self.assertIsInstance(mock, MagicMock,
+ "patch with two arguments did not create a mock")
+
+ test()
+
+ @patch.object(Test, 'something')
+ @patch.object(Test, 'something2')
+ def test(this1, this2, mock1, mock2):
+ self.assertEqual(this1, sentinel.this1,
+ "Patched function didn't receive initial argument")
+ self.assertEqual(this2, sentinel.this2,
+ "Patched function didn't receive second argument")
+ self.assertEqual(mock1, Test.something2,
+ "Mock not passed into test function")
+ self.assertEqual(mock2, Test.something,
+ "Second Mock not passed into test function")
+ self.assertIsInstance(mock2, MagicMock,
+ "patch with two arguments did not create a mock")
+ self.assertIsInstance(mock2, MagicMock,
+ "patch with two arguments did not create a mock")
+
+ # A hack to test that new mocks are passed the second time
+ self.assertNotEqual(outerMock1, mock1, "unexpected value for mock1")
+ self.assertNotEqual(outerMock2, mock2, "unexpected value for mock1")
+ return mock1, mock2
+
+ outerMock1 = outerMock2 = None
+ outerMock1, outerMock2 = test(sentinel.this1, sentinel.this2)
+
+ # Test that executing a second time creates new mocks
+ test(sentinel.this1, sentinel.this2)
+
+
+ def test_patch_with_spec(self):
+ @patch('%s.SomeClass' % __name__, spec=SomeClass)
+ def test(MockSomeClass):
+ self.assertEqual(SomeClass, MockSomeClass)
+ self.assertTrue(is_instance(SomeClass.wibble, MagicMock))
+ self.assertRaises(AttributeError, lambda: SomeClass.not_wibble)
+
+ test()
+
+
+ def test_patchobject_with_spec(self):
+ @patch.object(SomeClass, 'class_attribute', spec=SomeClass)
+ def test(MockAttribute):
+ self.assertEqual(SomeClass.class_attribute, MockAttribute)
+ self.assertTrue(is_instance(SomeClass.class_attribute.wibble,
+ MagicMock))
+ self.assertRaises(AttributeError,
+ lambda: SomeClass.class_attribute.not_wibble)
+
+ test()
+
+
+ def test_patch_with_spec_as_list(self):
+ @patch('%s.SomeClass' % __name__, spec=['wibble'])
+ def test(MockSomeClass):
+ self.assertEqual(SomeClass, MockSomeClass)
+ self.assertTrue(is_instance(SomeClass.wibble, MagicMock))
+ self.assertRaises(AttributeError, lambda: SomeClass.not_wibble)
+
+ test()
+
+
+ def test_patchobject_with_spec_as_list(self):
+ @patch.object(SomeClass, 'class_attribute', spec=['wibble'])
+ def test(MockAttribute):
+ self.assertEqual(SomeClass.class_attribute, MockAttribute)
+ self.assertTrue(is_instance(SomeClass.class_attribute.wibble,
+ MagicMock))
+ self.assertRaises(AttributeError,
+ lambda: SomeClass.class_attribute.not_wibble)
+
+ test()
+
+
+ def test_nested_patch_with_spec_as_list(self):
+ # regression test for nested decorators
+ @patch('%s.open' % builtin_string)
+ @patch('%s.SomeClass' % __name__, spec=['wibble'])
+ def test(MockSomeClass, MockOpen):
+ self.assertEqual(SomeClass, MockSomeClass)
+ self.assertTrue(is_instance(SomeClass.wibble, MagicMock))
+ self.assertRaises(AttributeError, lambda: SomeClass.not_wibble)
+ test()
+
+
+ def test_patch_with_spec_as_boolean(self):
+ @patch('%s.SomeClass' % __name__, spec=True)
+ def test(MockSomeClass):
+ self.assertEqual(SomeClass, MockSomeClass)
+ # Should not raise attribute error
+ MockSomeClass.wibble
+
+ self.assertRaises(AttributeError, lambda: MockSomeClass.not_wibble)
+
+ test()
+
+
+ def test_patch_object_with_spec_as_boolean(self):
+ @patch.object(PTModule, 'SomeClass', spec=True)
+ def test(MockSomeClass):
+ self.assertEqual(SomeClass, MockSomeClass)
+ # Should not raise attribute error
+ MockSomeClass.wibble
+
+ self.assertRaises(AttributeError, lambda: MockSomeClass.not_wibble)
+
+ test()
+
+
+ def test_patch_class_acts_with_spec_is_inherited(self):
+ @patch('%s.SomeClass' % __name__, spec=True)
+ def test(MockSomeClass):
+ self.assertTrue(is_instance(MockSomeClass, MagicMock))
+ instance = MockSomeClass()
+ self.assertNotCallable(instance)
+ # Should not raise attribute error
+ instance.wibble
+
+ self.assertRaises(AttributeError, lambda: instance.not_wibble)
+
+ test()
+
+
+ def test_patch_with_create_mocks_non_existent_attributes(self):
+ @patch('%s.frooble' % builtin_string, sentinel.Frooble, create=True)
+ def test():
+ self.assertEqual(frooble, sentinel.Frooble)
+
+ test()
+ self.assertRaises(NameError, lambda: frooble)
+
+
+ def test_patchobject_with_create_mocks_non_existent_attributes(self):
+ @patch.object(SomeClass, 'frooble', sentinel.Frooble, create=True)
+ def test():
+ self.assertEqual(SomeClass.frooble, sentinel.Frooble)
+
+ test()
+ self.assertFalse(hasattr(SomeClass, 'frooble'))
+
+
+ def test_patch_wont_create_by_default(self):
+ try:
+ @patch('%s.frooble' % builtin_string, sentinel.Frooble)
+ def test():
+ self.assertEqual(frooble, sentinel.Frooble)
+
+ test()
+ except AttributeError:
+ pass
+ else:
+ self.fail('Patching non existent attributes should fail')
+
+ self.assertRaises(NameError, lambda: frooble)
+
+
+ def test_patchobject_wont_create_by_default(self):
+ try:
+ @patch.object(SomeClass, 'frooble', sentinel.Frooble)
+ def test():
+ self.fail('Patching non existent attributes should fail')
+
+ test()
+ except AttributeError:
+ pass
+ else:
+ self.fail('Patching non existent attributes should fail')
+ self.assertFalse(hasattr(SomeClass, 'frooble'))
+
+
+ def test_patch_with_static_methods(self):
+ class Foo(object):
+ @staticmethod
+ def woot():
+ return sentinel.Static
+
+ @patch.object(Foo, 'woot', staticmethod(lambda: sentinel.Patched))
+ def anonymous():
+ self.assertEqual(Foo.woot(), sentinel.Patched)
+ anonymous()
+
+ self.assertEqual(Foo.woot(), sentinel.Static)
+
+
+ def test_patch_local(self):
+ foo = sentinel.Foo
+ @patch.object(sentinel, 'Foo', 'Foo')
+ def anonymous():
+ self.assertEqual(sentinel.Foo, 'Foo')
+ anonymous()
+
+ self.assertEqual(sentinel.Foo, foo)
+
+
+ def test_patch_slots(self):
+ class Foo(object):
+ __slots__ = ('Foo',)
+
+ foo = Foo()
+ foo.Foo = sentinel.Foo
+
+ @patch.object(foo, 'Foo', 'Foo')
+ def anonymous():
+ self.assertEqual(foo.Foo, 'Foo')
+ anonymous()
+
+ self.assertEqual(foo.Foo, sentinel.Foo)
+
+
+ def test_patchobject_class_decorator(self):
+ class Something(object):
+ attribute = sentinel.Original
+
+ class Foo(object):
+ def test_method(other_self):
+ self.assertEqual(Something.attribute, sentinel.Patched,
+ "unpatched")
+ def not_test_method(other_self):
+ self.assertEqual(Something.attribute, sentinel.Original,
+ "non-test method patched")
+
+ Foo = patch.object(Something, 'attribute', sentinel.Patched)(Foo)
+
+ f = Foo()
+ f.test_method()
+ f.not_test_method()
+
+ self.assertEqual(Something.attribute, sentinel.Original,
+ "patch not restored")
+
+
+ def test_patch_class_decorator(self):
+ class Something(object):
+ attribute = sentinel.Original
+
+ class Foo(object):
+ def test_method(other_self, mock_something):
+ self.assertEqual(PTModule.something, mock_something,
+ "unpatched")
+ def not_test_method(other_self):
+ self.assertEqual(PTModule.something, sentinel.Something,
+ "non-test method patched")
+ Foo = patch('%s.something' % __name__)(Foo)
+
+ f = Foo()
+ f.test_method()
+ f.not_test_method()
+
+ self.assertEqual(Something.attribute, sentinel.Original,
+ "patch not restored")
+ self.assertEqual(PTModule.something, sentinel.Something,
+ "patch not restored")
+
+
+ def test_patchobject_twice(self):
+ class Something(object):
+ attribute = sentinel.Original
+ next_attribute = sentinel.Original2
+
+ @patch.object(Something, 'attribute', sentinel.Patched)
+ @patch.object(Something, 'attribute', sentinel.Patched)
+ def test():
+ self.assertEqual(Something.attribute, sentinel.Patched, "unpatched")
+
+ test()
+
+ self.assertEqual(Something.attribute, sentinel.Original,
+ "patch not restored")
+
+
+ def test_patch_dict(self):
+ foo = {'initial': object(), 'other': 'something'}
+ original = foo.copy()
+
+ @patch.dict(foo)
+ def test():
+ foo['a'] = 3
+ del foo['initial']
+ foo['other'] = 'something else'
+
+ test()
+
+ self.assertEqual(foo, original)
+
+ @patch.dict(foo, {'a': 'b'})
+ def test():
+ self.assertEqual(len(foo), 3)
+ self.assertEqual(foo['a'], 'b')
+
+ test()
+
+ self.assertEqual(foo, original)
+
+ @patch.dict(foo, [('a', 'b')])
+ def test():
+ self.assertEqual(len(foo), 3)
+ self.assertEqual(foo['a'], 'b')
+
+ test()
+
+ self.assertEqual(foo, original)
+
+
+ def test_patch_dict_with_container_object(self):
+ foo = Container()
+ foo['initial'] = object()
+ foo['other'] = 'something'
+
+ original = foo.values.copy()
+
+ @patch.dict(foo)
+ def test():
+ foo['a'] = 3
+ del foo['initial']
+ foo['other'] = 'something else'
+
+ test()
+
+ self.assertEqual(foo.values, original)
+
+ @patch.dict(foo, {'a': 'b'})
+ def test():
+ self.assertEqual(len(foo.values), 3)
+ self.assertEqual(foo['a'], 'b')
+
+ test()
+
+ self.assertEqual(foo.values, original)
+
+
+ def test_patch_dict_with_clear(self):
+ foo = {'initial': object(), 'other': 'something'}
+ original = foo.copy()
+
+ @patch.dict(foo, clear=True)
+ def test():
+ self.assertEqual(foo, {})
+ foo['a'] = 3
+ foo['other'] = 'something else'
+
+ test()
+
+ self.assertEqual(foo, original)
+
+ @patch.dict(foo, {'a': 'b'}, clear=True)
+ def test():
+ self.assertEqual(foo, {'a': 'b'})
+
+ test()
+
+ self.assertEqual(foo, original)
+
+ @patch.dict(foo, [('a', 'b')], clear=True)
+ def test():
+ self.assertEqual(foo, {'a': 'b'})
+
+ test()
+
+ self.assertEqual(foo, original)
+
+
+ def test_patch_dict_with_container_object_and_clear(self):
+ foo = Container()
+ foo['initial'] = object()
+ foo['other'] = 'something'
+
+ original = foo.values.copy()
+
+ @patch.dict(foo, clear=True)
+ def test():
+ self.assertEqual(foo.values, {})
+ foo['a'] = 3
+ foo['other'] = 'something else'
+
+ test()
+
+ self.assertEqual(foo.values, original)
+
+ @patch.dict(foo, {'a': 'b'}, clear=True)
+ def test():
+ self.assertEqual(foo.values, {'a': 'b'})
+
+ test()
+
+ self.assertEqual(foo.values, original)
+
+
+ def test_name_preserved(self):
+ foo = {}
+
+ @patch('%s.SomeClass' % __name__, object())
+ @patch('%s.SomeClass' % __name__, object(), autospec=True)
+ @patch.object(SomeClass, object())
+ @patch.dict(foo)
+ def some_name():
+ pass
+
+ self.assertEqual(some_name.__name__, 'some_name')
+
+
+ def test_patch_with_exception(self):
+ foo = {}
+
+ @patch.dict(foo, {'a': 'b'})
+ def test():
+ raise NameError('Konrad')
+ try:
+ test()
+ except NameError:
+ pass
+ else:
+ self.fail('NameError not raised by test')
+
+ self.assertEqual(foo, {})
+
+
+ def test_patch_dict_with_string(self):
+ @patch.dict('os.environ', {'konrad_delong': 'some value'})
+ def test():
+ self.assertIn('konrad_delong', os.environ)
+
+ test()
+
+
+ @unittest2.expectedFailure
+ def test_patch_descriptor(self):
+ # would be some effort to fix this - we could special case the
+ # builtin descriptors: classmethod, property, staticmethod
+ class Nothing(object):
+ foo = None
+
+ class Something(object):
+ foo = {}
+
+ @patch.object(Nothing, 'foo', 2)
+ @classmethod
+ def klass(cls):
+ self.assertIs(cls, Something)
+
+ @patch.object(Nothing, 'foo', 2)
+ @staticmethod
+ def static(arg):
+ return arg
+
+ @patch.dict(foo)
+ @classmethod
+ def klass_dict(cls):
+ self.assertIs(cls, Something)
+
+ @patch.dict(foo)
+ @staticmethod
+ def static_dict(arg):
+ return arg
+
+ # these will raise exceptions if patching descriptors is broken
+ self.assertEqual(Something.static('f00'), 'f00')
+ Something.klass()
+ self.assertEqual(Something.static_dict('f00'), 'f00')
+ Something.klass_dict()
+
+ something = Something()
+ self.assertEqual(something.static('f00'), 'f00')
+ something.klass()
+ self.assertEqual(something.static_dict('f00'), 'f00')
+ something.klass_dict()
+
+
+ def test_patch_spec_set(self):
+ @patch('%s.SomeClass' % __name__, spec_set=SomeClass)
+ def test(MockClass):
+ MockClass.z = 'foo'
+
+ self.assertRaises(AttributeError, test)
+
+ @patch.object(support, 'SomeClass', spec_set=SomeClass)
+ def test(MockClass):
+ MockClass.z = 'foo'
+
+ self.assertRaises(AttributeError, test)
+ @patch('%s.SomeClass' % __name__, spec_set=True)
+ def test(MockClass):
+ MockClass.z = 'foo'
+
+ self.assertRaises(AttributeError, test)
+
+ @patch.object(support, 'SomeClass', spec_set=True)
+ def test(MockClass):
+ MockClass.z = 'foo'
+
+ self.assertRaises(AttributeError, test)
+
+
+ def test_spec_set_inherit(self):
+ @patch('%s.SomeClass' % __name__, spec_set=True)
+ def test(MockClass):
+ instance = MockClass()
+ instance.z = 'foo'
+
+ self.assertRaises(AttributeError, test)
+
+
+ def test_patch_start_stop(self):
+ original = something
+ patcher = patch('%s.something' % __name__)
+ self.assertIs(something, original)
+ mock = patcher.start()
+ try:
+ self.assertIsNot(mock, original)
+ self.assertIs(something, mock)
+ finally:
+ patcher.stop()
+ self.assertIs(something, original)
+
+
+ def test_stop_without_start(self):
+ patcher = patch(foo_name, 'bar', 3)
+
+ # calling stop without start used to produce a very obscure error
+ self.assertRaises(RuntimeError, patcher.stop)
+
+
+ def test_patchobject_start_stop(self):
+ original = something
+ patcher = patch.object(PTModule, 'something', 'foo')
+ self.assertIs(something, original)
+ replaced = patcher.start()
+ try:
+ self.assertEqual(replaced, 'foo')
+ self.assertIs(something, replaced)
+ finally:
+ patcher.stop()
+ self.assertIs(something, original)
+
+
+ def test_patch_dict_start_stop(self):
+ d = {'foo': 'bar'}
+ original = d.copy()
+ patcher = patch.dict(d, [('spam', 'eggs')], clear=True)
+ self.assertEqual(d, original)
+
+ patcher.start()
+ try:
+ self.assertEqual(d, {'spam': 'eggs'})
+ finally:
+ patcher.stop()
+ self.assertEqual(d, original)
+
+
+ def test_patch_dict_class_decorator(self):
+ this = self
+ d = {'spam': 'eggs'}
+ original = d.copy()
+
+ class Test(object):
+ def test_first(self):
+ this.assertEqual(d, {'foo': 'bar'})
+ def test_second(self):
+ this.assertEqual(d, {'foo': 'bar'})
+
+ Test = patch.dict(d, {'foo': 'bar'}, clear=True)(Test)
+ self.assertEqual(d, original)
+
+ test = Test()
+
+ test.test_first()
+ self.assertEqual(d, original)
+
+ test.test_second()
+ self.assertEqual(d, original)
+
+ test = Test()
+
+ test.test_first()
+ self.assertEqual(d, original)
+
+ test.test_second()
+ self.assertEqual(d, original)
+
+
+ def test_get_only_proxy(self):
+ class Something(object):
+ foo = 'foo'
+ class SomethingElse:
+ foo = 'foo'
+
+ for thing in Something, SomethingElse, Something(), SomethingElse:
+ proxy = _get_proxy(thing)
+
+ @patch.object(proxy, 'foo', 'bar')
+ def test():
+ self.assertEqual(proxy.foo, 'bar')
+ test()
+ self.assertEqual(proxy.foo, 'foo')
+ self.assertEqual(thing.foo, 'foo')
+ self.assertNotIn('foo', proxy.__dict__)
+
+
+ def test_get_set_delete_proxy(self):
+ class Something(object):
+ foo = 'foo'
+ class SomethingElse:
+ foo = 'foo'
+
+ for thing in Something, SomethingElse, Something(), SomethingElse:
+ proxy = _get_proxy(Something, get_only=False)
+
+ @patch.object(proxy, 'foo', 'bar')
+ def test():
+ self.assertEqual(proxy.foo, 'bar')
+ test()
+ self.assertEqual(proxy.foo, 'foo')
+ self.assertEqual(thing.foo, 'foo')
+ self.assertNotIn('foo', proxy.__dict__)
+
+
+ def test_patch_keyword_args(self):
+ kwargs = {'side_effect': KeyError, 'foo.bar.return_value': 33,
+ 'foo': MagicMock()}
+
+ patcher = patch(foo_name, **kwargs)
+ mock = patcher.start()
+ patcher.stop()
+
+ self.assertRaises(KeyError, mock)
+ self.assertEqual(mock.foo.bar(), 33)
+ self.assertIsInstance(mock.foo, MagicMock)
+
+
+ def test_patch_object_keyword_args(self):
+ kwargs = {'side_effect': KeyError, 'foo.bar.return_value': 33,
+ 'foo': MagicMock()}
+
+ patcher = patch.object(Foo, 'f', **kwargs)
+ mock = patcher.start()
+ patcher.stop()
+
+ self.assertRaises(KeyError, mock)
+ self.assertEqual(mock.foo.bar(), 33)
+ self.assertIsInstance(mock.foo, MagicMock)
+
+
+ def test_patch_dict_keyword_args(self):
+ original = {'foo': 'bar'}
+ copy = original.copy()
+
+ patcher = patch.dict(original, foo=3, bar=4, baz=5)
+ patcher.start()
+
+ try:
+ self.assertEqual(original, dict(foo=3, bar=4, baz=5))
+ finally:
+ patcher.stop()
+
+ self.assertEqual(original, copy)
+
+
+ def test_autospec(self):
+ class Boo(object):
+ def __init__(self, a):
+ pass
+ def f(self, a):
+ pass
+ def g(self):
+ pass
+ foo = 'bar'
+
+ class Bar(object):
+ def a(self):
+ pass
+
+ def _test(mock):
+ mock(1)
+ mock.assert_called_with(1)
+ self.assertRaises(TypeError, mock)
+
+ def _test2(mock):
+ mock.f(1)
+ mock.f.assert_called_with(1)
+ self.assertRaises(TypeError, mock.f)
+
+ mock.g()
+ mock.g.assert_called_with()
+ self.assertRaises(TypeError, mock.g, 1)
+
+ self.assertRaises(AttributeError, getattr, mock, 'h')
+
+ mock.foo.lower()
+ mock.foo.lower.assert_called_with()
+ self.assertRaises(AttributeError, getattr, mock.foo, 'bar')
+
+ mock.Bar()
+ mock.Bar.assert_called_with()
+
+ mock.Bar.a()
+ mock.Bar.a.assert_called_with()
+ self.assertRaises(TypeError, mock.Bar.a, 1)
+
+ mock.Bar().a()
+ mock.Bar().a.assert_called_with()
+ self.assertRaises(TypeError, mock.Bar().a, 1)
+
+ self.assertRaises(AttributeError, getattr, mock.Bar, 'b')
+ self.assertRaises(AttributeError, getattr, mock.Bar(), 'b')
+
+ def function(mock):
+ _test(mock)
+ _test2(mock)
+ _test2(mock(1))
+ self.assertIs(mock, Foo)
+ return mock
+
+ test = patch(foo_name, autospec=True)(function)
+
+ mock = test()
+ self.assertIsNot(Foo, mock)
+ # test patching a second time works
+ test()
+
+ module = sys.modules[__name__]
+ test = patch.object(module, 'Foo', autospec=True)(function)
+
+ mock = test()
+ self.assertIsNot(Foo, mock)
+ # test patching a second time works
+ test()
+
+
+ def test_autospec_function(self):
+ @patch('%s.function' % __name__, autospec=True)
+ def test(mock):
+ function(1)
+ function.assert_called_with(1)
+ function(2, 3)
+ function.assert_called_with(2, 3)
+
+ self.assertRaises(TypeError, function)
+ self.assertRaises(AttributeError, getattr, function, 'foo')
+
+ test()
+
+
+ def test_autospec_keywords(self):
+ @patch('%s.function' % __name__, autospec=True,
+ return_value=3)
+ def test(mock_function):
+ #self.assertEqual(function.abc, 'foo')
+ return function(1, 2)
+
+ result = test()
+ self.assertEqual(result, 3)
+
+
+ def test_autospec_with_new(self):
+ patcher = patch('%s.function' % __name__, new=3, autospec=True)
+ self.assertRaises(TypeError, patcher.start)
+
+ module = sys.modules[__name__]
+ patcher = patch.object(module, 'function', new=3, autospec=True)
+ self.assertRaises(TypeError, patcher.start)
+
+
+ def test_autospec_with_object(self):
+ class Bar(Foo):
+ extra = []
+
+ patcher = patch(foo_name, autospec=Bar)
+ mock = patcher.start()
+ try:
+ self.assertIsInstance(mock, Bar)
+ self.assertIsInstance(mock.extra, list)
+ finally:
+ patcher.stop()
+
+
+ def test_autospec_inherits(self):
+ FooClass = Foo
+ patcher = patch(foo_name, autospec=True)
+ mock = patcher.start()
+ try:
+ self.assertIsInstance(mock, FooClass)
+ self.assertIsInstance(mock(3), FooClass)
+ finally:
+ patcher.stop()
+
+
+ def test_autospec_name(self):
+ patcher = patch(foo_name, autospec=True)
+ mock = patcher.start()
+
+ try:
+ self.assertIn(" name='Foo'", repr(mock))
+ self.assertIn(" name='Foo.f'", repr(mock.f))
+ self.assertIn(" name='Foo()'", repr(mock(None)))
+ self.assertIn(" name='Foo().f'", repr(mock(None).f))
+ finally:
+ patcher.stop()
+
+
+ def test_tracebacks(self):
+ @patch.object(Foo, 'f', object())
+ def test():
+ raise AssertionError
+ try:
+ test()
+ except:
+ err = sys.exc_info()
+
+ result = unittest2.TextTestResult(None, None, 0)
+ traceback = result._exc_info_to_string(err, self)
+ self.assertIn('raise AssertionError', traceback)
+
+
+ def test_new_callable_patch(self):
+ patcher = patch(foo_name, new_callable=NonCallableMagicMock)
+
+ m1 = patcher.start()
+ patcher.stop()
+ m2 = patcher.start()
+ patcher.stop()
+
+ self.assertIsNot(m1, m2)
+ for mock in m1, m2:
+ self.assertNotCallable(m1)
+
+
+ def test_new_callable_patch_object(self):
+ patcher = patch.object(Foo, 'f', new_callable=NonCallableMagicMock)
+
+ m1 = patcher.start()
+ patcher.stop()
+ m2 = patcher.start()
+ patcher.stop()
+
+ self.assertIsNot(m1, m2)
+ for mock in m1, m2:
+ self.assertNotCallable(m1)
+
+
+ def test_new_callable_keyword_arguments(self):
+ class Bar(object):
+ kwargs = None
+ def __init__(self, **kwargs):
+ Bar.kwargs = kwargs
+
+ patcher = patch(foo_name, new_callable=Bar, arg1=1, arg2=2)
+ m = patcher.start()
+ try:
+ self.assertIs(type(m), Bar)
+ self.assertEqual(Bar.kwargs, dict(arg1=1, arg2=2))
+ finally:
+ patcher.stop()
+
+
+ def test_new_callable_spec(self):
+ class Bar(object):
+ kwargs = None
+ def __init__(self, **kwargs):
+ Bar.kwargs = kwargs
+
+ patcher = patch(foo_name, new_callable=Bar, spec=Bar)
+ patcher.start()
+ try:
+ self.assertEqual(Bar.kwargs, dict(spec=Bar))
+ finally:
+ patcher.stop()
+
+ patcher = patch(foo_name, new_callable=Bar, spec_set=Bar)
+ patcher.start()
+ try:
+ self.assertEqual(Bar.kwargs, dict(spec_set=Bar))
+ finally:
+ patcher.stop()
+
+
+ def test_new_callable_create(self):
+ non_existent_attr = '%s.weeeee' % foo_name
+ p = patch(non_existent_attr, new_callable=NonCallableMock)
+ self.assertRaises(AttributeError, p.start)
+
+ p = patch(non_existent_attr, new_callable=NonCallableMock,
+ create=True)
+ m = p.start()
+ try:
+ self.assertNotCallable(m, magic=False)
+ finally:
+ p.stop()
+
+
+ def test_new_callable_incompatible_with_new(self):
+ self.assertRaises(
+ ValueError, patch, foo_name, new=object(), new_callable=MagicMock
+ )
+ self.assertRaises(
+ ValueError, patch.object, Foo, 'f', new=object(),
+ new_callable=MagicMock
+ )
+
+
+ def test_new_callable_incompatible_with_autospec(self):
+ self.assertRaises(
+ ValueError, patch, foo_name, new_callable=MagicMock,
+ autospec=True
+ )
+ self.assertRaises(
+ ValueError, patch.object, Foo, 'f', new_callable=MagicMock,
+ autospec=True
+ )
+
+
+ def test_new_callable_inherit_for_mocks(self):
+ class MockSub(Mock):
+ pass
+
+ MockClasses = (
+ NonCallableMock, NonCallableMagicMock, MagicMock, Mock, MockSub
+ )
+ for Klass in MockClasses:
+ for arg in 'spec', 'spec_set':
+ kwargs = {arg: True}
+ p = patch(foo_name, new_callable=Klass, **kwargs)
+ m = p.start()
+ try:
+ instance = m.return_value
+ self.assertRaises(AttributeError, getattr, instance, 'x')
+ finally:
+ p.stop()
+
+
+ def test_new_callable_inherit_non_mock(self):
+ class NotAMock(object):
+ def __init__(self, spec):
+ self.spec = spec
+
+ p = patch(foo_name, new_callable=NotAMock, spec=True)
+ m = p.start()
+ try:
+ self.assertTrue(is_instance(m, NotAMock))
+ self.assertRaises(AttributeError, getattr, m, 'return_value')
+ finally:
+ p.stop()
+
+ self.assertEqual(m.spec, Foo)
+
+
+ def test_new_callable_class_decorating(self):
+ test = self
+ original = Foo
+ class SomeTest(object):
+
+ def _test(self, mock_foo):
+ test.assertIsNot(Foo, original)
+ test.assertIs(Foo, mock_foo)
+ test.assertIsInstance(Foo, SomeClass)
+
+ def test_two(self, mock_foo):
+ self._test(mock_foo)
+ def test_one(self, mock_foo):
+ self._test(mock_foo)
+
+ SomeTest = patch(foo_name, new_callable=SomeClass)(SomeTest)
+ SomeTest().test_one()
+ SomeTest().test_two()
+ self.assertIs(Foo, original)
+
+
+ def test_patch_multiple(self):
+ original_foo = Foo
+ original_f = Foo.f
+ original_g = Foo.g
+
+ patcher1 = patch.multiple(foo_name, f=1, g=2)
+ patcher2 = patch.multiple(Foo, f=1, g=2)
+
+ for patcher in patcher1, patcher2:
+ patcher.start()
+ try:
+ self.assertIs(Foo, original_foo)
+ self.assertEqual(Foo.f, 1)
+ self.assertEqual(Foo.g, 2)
+ finally:
+ patcher.stop()
+
+ self.assertIs(Foo, original_foo)
+ self.assertEqual(Foo.f, original_f)
+ self.assertEqual(Foo.g, original_g)
+
+
+ @patch.multiple(foo_name, f=3, g=4)
+ def test():
+ self.assertIs(Foo, original_foo)
+ self.assertEqual(Foo.f, 3)
+ self.assertEqual(Foo.g, 4)
+
+ test()
+
+
+ def test_patch_multiple_no_kwargs(self):
+ self.assertRaises(ValueError, patch.multiple, foo_name)
+ self.assertRaises(ValueError, patch.multiple, Foo)
+
+
+ def test_patch_multiple_create_mocks(self):
+ original_foo = Foo
+ original_f = Foo.f
+ original_g = Foo.g
+
+ @patch.multiple(foo_name, f=DEFAULT, g=3, foo=DEFAULT)
+ def test(f, foo):
+ self.assertIs(Foo, original_foo)
+ self.assertIs(Foo.f, f)
+ self.assertEqual(Foo.g, 3)
+ self.assertIs(Foo.foo, foo)
+ self.assertTrue(is_instance(f, MagicMock))
+ self.assertTrue(is_instance(foo, MagicMock))
+
+ test()
+ self.assertEqual(Foo.f, original_f)
+ self.assertEqual(Foo.g, original_g)
+
+
+ def test_patch_multiple_create_mocks_different_order(self):
+ # bug revealed by Jython!
+ original_f = Foo.f
+ original_g = Foo.g
+
+ patcher = patch.object(Foo, 'f', 3)
+ patcher.attribute_name = 'f'
+
+ other = patch.object(Foo, 'g', DEFAULT)
+ other.attribute_name = 'g'
+ patcher.additional_patchers = [other]
+
+ @patcher
+ def test(g):
+ self.assertIs(Foo.g, g)
+ self.assertEqual(Foo.f, 3)
+
+ test()
+ self.assertEqual(Foo.f, original_f)
+ self.assertEqual(Foo.g, original_g)
+
+
+ def test_patch_multiple_stacked_decorators(self):
+ original_foo = Foo
+ original_f = Foo.f
+ original_g = Foo.g
+
+ @patch.multiple(foo_name, f=DEFAULT)
+ @patch.multiple(foo_name, foo=DEFAULT)
+ @patch(foo_name + '.g')
+ def test1(g, **kwargs):
+ _test(g, **kwargs)
+
+ @patch.multiple(foo_name, f=DEFAULT)
+ @patch(foo_name + '.g')
+ @patch.multiple(foo_name, foo=DEFAULT)
+ def test2(g, **kwargs):
+ _test(g, **kwargs)
+
+ @patch(foo_name + '.g')
+ @patch.multiple(foo_name, f=DEFAULT)
+ @patch.multiple(foo_name, foo=DEFAULT)
+ def test3(g, **kwargs):
+ _test(g, **kwargs)
+
+ def _test(g, **kwargs):
+ f = kwargs.pop('f')
+ foo = kwargs.pop('foo')
+ self.assertFalse(kwargs)
+
+ self.assertIs(Foo, original_foo)
+ self.assertIs(Foo.f, f)
+ self.assertIs(Foo.g, g)
+ self.assertIs(Foo.foo, foo)
+ self.assertTrue(is_instance(f, MagicMock))
+ self.assertTrue(is_instance(g, MagicMock))
+ self.assertTrue(is_instance(foo, MagicMock))
+
+ test1()
+ test2()
+ test3()
+ self.assertEqual(Foo.f, original_f)
+ self.assertEqual(Foo.g, original_g)
+
+
+ def test_patch_multiple_create_mocks_patcher(self):
+ original_foo = Foo
+ original_f = Foo.f
+ original_g = Foo.g
+
+ patcher = patch.multiple(foo_name, f=DEFAULT, g=3, foo=DEFAULT)
+
+ result = patcher.start()
+ try:
+ f = result['f']
+ foo = result['foo']
+ self.assertEqual(set(result), set(['f', 'foo']))
+
+ self.assertIs(Foo, original_foo)
+ self.assertIs(Foo.f, f)
+ self.assertIs(Foo.foo, foo)
+ self.assertTrue(is_instance(f, MagicMock))
+ self.assertTrue(is_instance(foo, MagicMock))
+ finally:
+ patcher.stop()
+
+ self.assertEqual(Foo.f, original_f)
+ self.assertEqual(Foo.g, original_g)
+
+
+ def test_patch_multiple_decorating_class(self):
+ test = self
+ original_foo = Foo
+ original_f = Foo.f
+ original_g = Foo.g
+
+ class SomeTest(object):
+
+ def _test(self, f, foo):
+ test.assertIs(Foo, original_foo)
+ test.assertIs(Foo.f, f)
+ test.assertEqual(Foo.g, 3)
+ test.assertIs(Foo.foo, foo)
+ test.assertTrue(is_instance(f, MagicMock))
+ test.assertTrue(is_instance(foo, MagicMock))
+
+ def test_two(self, f, foo):
+ self._test(f, foo)
+ def test_one(self, f, foo):
+ self._test(f, foo)
+
+ SomeTest = patch.multiple(
+ foo_name, f=DEFAULT, g=3, foo=DEFAULT
+ )(SomeTest)
+
+ thing = SomeTest()
+ thing.test_one()
+ thing.test_two()
+
+ self.assertEqual(Foo.f, original_f)
+ self.assertEqual(Foo.g, original_g)
+
+
+ def test_patch_multiple_create(self):
+ patcher = patch.multiple(Foo, blam='blam')
+ self.assertRaises(AttributeError, patcher.start)
+
+ patcher = patch.multiple(Foo, blam='blam', create=True)
+ patcher.start()
+ try:
+ self.assertEqual(Foo.blam, 'blam')
+ finally:
+ patcher.stop()
+
+ self.assertFalse(hasattr(Foo, 'blam'))
+
+
+ def test_patch_multiple_spec_set(self):
+ # if spec_set works then we can assume that spec and autospec also
+ # work as the underlying machinery is the same
+ patcher = patch.multiple(Foo, foo=DEFAULT, spec_set=['a', 'b'])
+ result = patcher.start()
+ try:
+ self.assertEqual(Foo.foo, result['foo'])
+ Foo.foo.a(1)
+ Foo.foo.b(2)
+ Foo.foo.a.assert_called_with(1)
+ Foo.foo.b.assert_called_with(2)
+ self.assertRaises(AttributeError, setattr, Foo.foo, 'c', None)
+ finally:
+ patcher.stop()
+
+
+ def test_patch_multiple_new_callable(self):
+ class Thing(object):
+ pass
+
+ patcher = patch.multiple(
+ Foo, f=DEFAULT, g=DEFAULT, new_callable=Thing
+ )
+ result = patcher.start()
+ try:
+ self.assertIs(Foo.f, result['f'])
+ self.assertIs(Foo.g, result['g'])
+ self.assertIsInstance(Foo.f, Thing)
+ self.assertIsInstance(Foo.g, Thing)
+ self.assertIsNot(Foo.f, Foo.g)
+ finally:
+ patcher.stop()
+
+
+ def test_nested_patch_failure(self):
+ original_f = Foo.f
+ original_g = Foo.g
+
+ @patch.object(Foo, 'g', 1)
+ @patch.object(Foo, 'missing', 1)
+ @patch.object(Foo, 'f', 1)
+ def thing1():
+ pass
+
+ @patch.object(Foo, 'missing', 1)
+ @patch.object(Foo, 'g', 1)
+ @patch.object(Foo, 'f', 1)
+ def thing2():
+ pass
+
+ @patch.object(Foo, 'g', 1)
+ @patch.object(Foo, 'f', 1)
+ @patch.object(Foo, 'missing', 1)
+ def thing3():
+ pass
+
+ for func in thing1, thing2, thing3:
+ self.assertRaises(AttributeError, func)
+ self.assertEqual(Foo.f, original_f)
+ self.assertEqual(Foo.g, original_g)
+
+
+ def test_new_callable_failure(self):
+ original_f = Foo.f
+ original_g = Foo.g
+ original_foo = Foo.foo
+
+ def crasher():
+ raise NameError('crasher')
+
+ @patch.object(Foo, 'g', 1)
+ @patch.object(Foo, 'foo', new_callable=crasher)
+ @patch.object(Foo, 'f', 1)
+ def thing1():
+ pass
+
+ @patch.object(Foo, 'foo', new_callable=crasher)
+ @patch.object(Foo, 'g', 1)
+ @patch.object(Foo, 'f', 1)
+ def thing2():
+ pass
+
+ @patch.object(Foo, 'g', 1)
+ @patch.object(Foo, 'f', 1)
+ @patch.object(Foo, 'foo', new_callable=crasher)
+ def thing3():
+ pass
+
+ for func in thing1, thing2, thing3:
+ self.assertRaises(NameError, func)
+ self.assertEqual(Foo.f, original_f)
+ self.assertEqual(Foo.g, original_g)
+ self.assertEqual(Foo.foo, original_foo)
+
+
+ def test_patch_multiple_failure(self):
+ original_f = Foo.f
+ original_g = Foo.g
+
+ patcher = patch.object(Foo, 'f', 1)
+ patcher.attribute_name = 'f'
+
+ good = patch.object(Foo, 'g', 1)
+ good.attribute_name = 'g'
+
+ bad = patch.object(Foo, 'missing', 1)
+ bad.attribute_name = 'missing'
+
+ for additionals in [good, bad], [bad, good]:
+ patcher.additional_patchers = additionals
+
+ @patcher
+ def func():
+ pass
+
+ self.assertRaises(AttributeError, func)
+ self.assertEqual(Foo.f, original_f)
+ self.assertEqual(Foo.g, original_g)
+
+
+ def test_patch_multiple_new_callable_failure(self):
+ original_f = Foo.f
+ original_g = Foo.g
+ original_foo = Foo.foo
+
+ def crasher():
+ raise NameError('crasher')
+
+ patcher = patch.object(Foo, 'f', 1)
+ patcher.attribute_name = 'f'
+
+ good = patch.object(Foo, 'g', 1)
+ good.attribute_name = 'g'
+
+ bad = patch.object(Foo, 'foo', new_callable=crasher)
+ bad.attribute_name = 'foo'
+
+ for additionals in [good, bad], [bad, good]:
+ patcher.additional_patchers = additionals
+
+ @patcher
+ def func():
+ pass
+
+ self.assertRaises(NameError, func)
+ self.assertEqual(Foo.f, original_f)
+ self.assertEqual(Foo.g, original_g)
+ self.assertEqual(Foo.foo, original_foo)
+
+
+ def test_patch_multiple_string_subclasses(self):
+ for base in (str, unicode):
+ Foo = type('Foo', (base,), {'fish': 'tasty'})
+ foo = Foo()
+ @patch.multiple(foo, fish='nearly gone')
+ def test():
+ self.assertEqual(foo.fish, 'nearly gone')
+
+ test()
+ self.assertEqual(foo.fish, 'tasty')
+
+
+ @patch('mock.patch.TEST_PREFIX', 'foo')
+ def test_patch_test_prefix(self):
+ class Foo(object):
+ thing = 'original'
+
+ def foo_one(self):
+ return self.thing
+ def foo_two(self):
+ return self.thing
+ def test_one(self):
+ return self.thing
+ def test_two(self):
+ return self.thing
+
+ Foo = patch.object(Foo, 'thing', 'changed')(Foo)
+
+ foo = Foo()
+ self.assertEqual(foo.foo_one(), 'changed')
+ self.assertEqual(foo.foo_two(), 'changed')
+ self.assertEqual(foo.test_one(), 'original')
+ self.assertEqual(foo.test_two(), 'original')
+
+
+ @patch('mock.patch.TEST_PREFIX', 'bar')
+ def test_patch_dict_test_prefix(self):
+ class Foo(object):
+ def bar_one(self):
+ return dict(the_dict)
+ def bar_two(self):
+ return dict(the_dict)
+ def test_one(self):
+ return dict(the_dict)
+ def test_two(self):
+ return dict(the_dict)
+
+ the_dict = {'key': 'original'}
+ Foo = patch.dict(the_dict, key='changed')(Foo)
+
+ foo =Foo()
+ self.assertEqual(foo.bar_one(), {'key': 'changed'})
+ self.assertEqual(foo.bar_two(), {'key': 'changed'})
+ self.assertEqual(foo.test_one(), {'key': 'original'})
+ self.assertEqual(foo.test_two(), {'key': 'original'})
+
+
+ def test_patch_with_spec_mock_repr(self):
+ for arg in ('spec', 'autospec', 'spec_set'):
+ p = patch('%s.SomeClass' % __name__, **{arg: True})
+ m = p.start()
+ try:
+ self.assertIn(" name='SomeClass'", repr(m))
+ self.assertIn(" name='SomeClass.class_attribute'",
+ repr(m.class_attribute))
+ self.assertIn(" name='SomeClass()'", repr(m()))
+ self.assertIn(" name='SomeClass().class_attribute'",
+ repr(m().class_attribute))
+ finally:
+ p.stop()
+
+
+ def test_patch_nested_autospec_repr(self):
+ p = patch('tests.support', autospec=True)
+ m = p.start()
+ try:
+ self.assertIn(" name='support.SomeClass.wibble()'",
+ repr(m.SomeClass.wibble()))
+ self.assertIn(" name='support.SomeClass().wibble()'",
+ repr(m.SomeClass().wibble()))
+ finally:
+ p.stop()
+
+
+ def test_mock_calls_with_patch(self):
+ for arg in ('spec', 'autospec', 'spec_set'):
+ p = patch('%s.SomeClass' % __name__, **{arg: True})
+ m = p.start()
+ try:
+ m.wibble()
+
+ kalls = [call.wibble()]
+ self.assertEqual(m.mock_calls, kalls)
+ self.assertEqual(m.method_calls, kalls)
+ self.assertEqual(m.wibble.mock_calls, [call()])
+
+ result = m()
+ kalls.append(call())
+ self.assertEqual(m.mock_calls, kalls)
+
+ result.wibble()
+ kalls.append(call().wibble())
+ self.assertEqual(m.mock_calls, kalls)
+
+ self.assertEqual(result.mock_calls, [call.wibble()])
+ self.assertEqual(result.wibble.mock_calls, [call()])
+ self.assertEqual(result.method_calls, [call.wibble()])
+ finally:
+ p.stop()
+
+
+ def test_patch_imports_lazily(self):
+ sys.modules.pop('squizz', None)
+
+ p1 = patch('squizz.squozz')
+ self.assertRaises(ImportError, p1.start)
+
+ squizz = Mock()
+ squizz.squozz = 6
+ sys.modules['squizz'] = squizz
+ p1 = patch('squizz.squozz')
+ squizz.squozz = 3
+ p1.start()
+ p1.stop()
+ self.assertEqual(squizz.squozz, 3)
+
+
+ def test_patch_propogrates_exc_on_exit(self):
+ class holder:
+ exc_info = None, None, None
+
+ class custom_patch(_patch):
+ def __exit__(self, etype=None, val=None, tb=None):
+ _patch.__exit__(self, etype, val, tb)
+ holder.exc_info = etype, val, tb
+ stop = __exit__
+
+ def with_custom_patch(target):
+ getter, attribute = _get_target(target)
+ return custom_patch(
+ getter, attribute, DEFAULT, None, False, None,
+ None, None, {}
+ )
+
+ @with_custom_patch('squizz.squozz')
+ def test(mock):
+ raise RuntimeError
+
+ self.assertRaises(RuntimeError, test)
+ self.assertIs(holder.exc_info[0], RuntimeError)
+ self.assertIsNotNone(holder.exc_info[1],
+ 'exception value not propgated')
+ self.assertIsNotNone(holder.exc_info[2],
+ 'exception traceback not propgated')
+
+
+ def test_create_and_specs(self):
+ for kwarg in ('spec', 'spec_set', 'autospec'):
+ p = patch('%s.doesnotexist' % __name__, create=True,
+ **{kwarg: True})
+ self.assertRaises(TypeError, p.start)
+ self.assertRaises(NameError, lambda: doesnotexist)
+
+ # check that spec with create is innocuous if the original exists
+ p = patch(MODNAME, create=True, **{kwarg: True})
+ p.start()
+ p.stop()
+
+
+ def test_multiple_specs(self):
+ original = PTModule
+ for kwarg in ('spec', 'spec_set'):
+ p = patch(MODNAME, autospec=0, **{kwarg: 0})
+ self.assertRaises(TypeError, p.start)
+ self.assertIs(PTModule, original)
+
+ for kwarg in ('spec', 'autospec'):
+ p = patch(MODNAME, spec_set=0, **{kwarg: 0})
+ self.assertRaises(TypeError, p.start)
+ self.assertIs(PTModule, original)
+
+ for kwarg in ('spec_set', 'autospec'):
+ p = patch(MODNAME, spec=0, **{kwarg: 0})
+ self.assertRaises(TypeError, p.start)
+ self.assertIs(PTModule, original)
+
+
+ def test_specs_false_instead_of_none(self):
+ p = patch(MODNAME, spec=False, spec_set=False, autospec=False)
+ mock = p.start()
+ try:
+ # no spec should have been set, so attribute access should not fail
+ mock.does_not_exist
+ mock.does_not_exist = 3
+ finally:
+ p.stop()
+
+
+ def test_falsey_spec(self):
+ for kwarg in ('spec', 'autospec', 'spec_set'):
+ p = patch(MODNAME, **{kwarg: 0})
+ m = p.start()
+ try:
+ self.assertRaises(AttributeError, getattr, m, 'doesnotexit')
+ finally:
+ p.stop()
+
+
+ def test_spec_set_true(self):
+ for kwarg in ('spec', 'autospec'):
+ p = patch(MODNAME, spec_set=True, **{kwarg: True})
+ m = p.start()
+ try:
+ self.assertRaises(AttributeError, setattr, m,
+ 'doesnotexist', 'something')
+ self.assertRaises(AttributeError, getattr, m, 'doesnotexist')
+ finally:
+ p.stop()
+
+
+ def test_callable_spec_as_list(self):
+ spec = ('__call__',)
+ p = patch(MODNAME, spec=spec)
+ m = p.start()
+ try:
+ self.assertTrue(callable(m))
+ finally:
+ p.stop()
+
+
+ def test_not_callable_spec_as_list(self):
+ spec = ('foo', 'bar')
+ p = patch(MODNAME, spec=spec)
+ m = p.start()
+ try:
+ self.assertFalse(callable(m))
+ finally:
+ p.stop()
+
+
+ def test_patch_stopall(self):
+ unlink = os.unlink
+ chdir = os.chdir
+ path = os.path
+ patch('os.unlink', something).start()
+ patch('os.chdir', something_else).start()
+
+ @patch('os.path')
+ def patched(mock_path):
+ patch.stopall()
+ self.assertIs(os.path, mock_path)
+ self.assertIs(os.unlink, unlink)
+ self.assertIs(os.chdir, chdir)
+
+ patched()
+ self.assertIs(os.path, path)
+
+
+
+if __name__ == '__main__':
+ unittest2.main()