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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()