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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 unittest2 as unittest
from mock.tests.support import is_instance, X, SomeClass
from mock import (
Mock, MagicMock, NonCallableMagicMock,
NonCallableMock, patch, create_autospec,
CallableMixin
)
class TestCallable(unittest.TestCase):
def assertNotCallable(self, mock):
self.assertTrue(is_instance(mock, NonCallableMagicMock))
self.assertFalse(is_instance(mock, CallableMixin))
def test_non_callable(self):
for mock in NonCallableMagicMock(), NonCallableMock():
self.assertRaises(TypeError, mock)
self.assertFalse(hasattr(mock, '__call__'))
self.assertIn(mock.__class__.__name__, repr(mock))
def test_heirarchy(self):
self.assertTrue(issubclass(MagicMock, Mock))
self.assertTrue(issubclass(NonCallableMagicMock, NonCallableMock))
def test_attributes(self):
one = NonCallableMock()
self.assertTrue(issubclass(type(one.one), Mock))
two = NonCallableMagicMock()
self.assertTrue(issubclass(type(two.two), MagicMock))
def test_subclasses(self):
class MockSub(Mock):
pass
one = MockSub()
self.assertTrue(issubclass(type(one.one), MockSub))
class MagicSub(MagicMock):
pass
two = MagicSub()
self.assertTrue(issubclass(type(two.two), MagicSub))
def test_patch_spec(self):
patcher = patch('%s.X' % __name__, spec=True)
mock = patcher.start()
self.addCleanup(patcher.stop)
instance = mock()
mock.assert_called_once_with()
self.assertNotCallable(instance)
self.assertRaises(TypeError, instance)
def test_patch_spec_set(self):
patcher = patch('%s.X' % __name__, spec_set=True)
mock = patcher.start()
self.addCleanup(patcher.stop)
instance = mock()
mock.assert_called_once_with()
self.assertNotCallable(instance)
self.assertRaises(TypeError, instance)
def test_patch_spec_instance(self):
patcher = patch('%s.X' % __name__, spec=X())
mock = patcher.start()
self.addCleanup(patcher.stop)
self.assertNotCallable(mock)
self.assertRaises(TypeError, mock)
def test_patch_spec_set_instance(self):
patcher = patch('%s.X' % __name__, spec_set=X())
mock = patcher.start()
self.addCleanup(patcher.stop)
self.assertNotCallable(mock)
self.assertRaises(TypeError, mock)
def test_patch_spec_callable_class(self):
class CallableX(X):
def __call__(self):
pass
class Sub(CallableX):
pass
class Multi(SomeClass, Sub):
pass
class OldStyle:
def __call__(self):
pass
class OldStyleSub(OldStyle):
pass
for arg in 'spec', 'spec_set':
for Klass in CallableX, Sub, Multi, OldStyle, OldStyleSub:
with patch('%s.X' % __name__, **{arg: Klass}) as mock:
instance = mock()
mock.assert_called_once_with()
self.assertTrue(is_instance(instance, MagicMock))
# inherited spec
self.assertRaises(AttributeError, getattr, instance,
'foobarbaz')
result = instance()
# instance is callable, result has no spec
instance.assert_called_once_with()
result(3, 2, 1)
result.assert_called_once_with(3, 2, 1)
result.foo(3, 2, 1)
result.foo.assert_called_once_with(3, 2, 1)
def test_create_autospec(self):
mock = create_autospec(X)
instance = mock()
self.assertRaises(TypeError, instance)
mock = create_autospec(X())
self.assertRaises(TypeError, mock)
def test_create_autospec_instance(self):
mock = create_autospec(SomeClass, instance=True)
self.assertRaises(TypeError, mock)
mock.wibble()
mock.wibble.assert_called_once_with()
self.assertRaises(TypeError, mock.wibble, 'some', 'args')
if __name__ == "__main__":
unittest.main()