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from .ut_utils import ForgeTestCase
from forge import UnexpectedSetattr
from forge import ExpectedEventsNotFound
from contextlib import contextmanager
class MockedClass(object):
class_variable = 2
def some_method(self):
pass
class MockAttributesTest(ForgeTestCase):
def setUp(self):
super(MockAttributesTest, self).setUp()
self.obj = self.forge.create_mock(MockedClass)
def tearDown(self):
self.forge.verify()
self.assertNoMoreCalls()
super(MockAttributesTest, self).tearDown()
def test__setting_mock_object_attributes(self):
attr_value = self.obj.a = object()
self.assertIs(self.obj.a, attr_value)
self.forge.replay()
self.assertIs(self.obj.a, attr_value)
self.forge.reset()
self.assertEqual(self.obj.a, attr_value)
def test__setting_mock_object_attributes_during_replay(self):
self.forge.replay()
with self.assertUnexpectedSetattr(self.obj, "a", 2):
self.obj.a = 2
with self.assertRaises(AttributeError):
self.obj.a
self.forge.reset()
with self.assertRaises(AttributeError):
self.obj.a
def test__setting_mock_object_attributes_during_replay_enabled_explicitly(self):
self.obj.__forge__.enable_setattr_during_replay()
self.forge.replay()
self.obj.a = 2
self.assertEqual(self.obj.a, 2)
self.forge.reset()
with self.assertRaises(AttributeError):
self.obj.a
def test__setting_mock_object_attributes_during_replay_enabled_explicitly_and_disabled_again(self):
self.obj.__forge__.enable_setattr_during_replay()
self.obj.__forge__.disable_setattr_during_replay()
self.test__setting_mock_object_attributes_during_replay()
def test__setting_mock_object_attributes_during_replay_even_if_set_during_record(self):
self.obj.a = 2
self.forge.replay()
with self.assertUnexpectedSetattr(self.obj, "a", 2):
self.obj.a = 2
with self.assertUnexpectedSetattr(self.obj, "a", 3):
self.obj.a = 3
self.assertNoMoreCalls()
self.assertEqual(self.obj.a, 2)
self.forge.reset()
self.assertEqual(self.obj.a, 2)
def test__getattr_of_nonexisting_attr_during_replay(self):
self.forge.replay()
with self.assertRaises(AttributeError):
self.obj.nonexisting_attr
with self.assertRaises(AttributeError):
# a private case of the above, just making a point
self.obj.nonexisting_method()
def test__getattr_of_real_methods_during_replay(self):
self.forge.replay()
self.obj.some_method
def test__getattr_of_class_variables_during_record(self):
self.assertEqual(self.obj.class_variable, MockedClass.class_variable)
def test__getattr_of_class_variables_during_replay(self):
self.forge.replay()
self.assertEqual(self.obj.class_variable, MockedClass.class_variable)
def test__setattr_of_class_variables_during_record(self):
self.obj.class_variable = 300
self.assertEqual(self.obj.class_variable, 300)
self.forge.replay()
self.assertEqual(self.obj.class_variable, 300)
def test__setattr_of_class_variables_during_replay(self):
self.forge.replay()
with self.assertUnexpectedSetattr(self.obj, "class_variable", 300):
self.obj.class_variable = 300
def test__expect_setattr(self):
self.obj.__forge__.expect_setattr("a", 666)
self.forge.replay()
with self.assertRaises(AttributeError):
self.obj.a
self.obj.a = 666
self.assertEqual(self.obj.a, 666)
def test__expect_setattr_previous_value(self):
self.obj.a = 1
self.assertEqual(self.obj.a, 1)
self.obj.__forge__.expect_setattr("a", 2)
self.assertEqual(self.obj.a, 1)
self.forge.replay()
self.assertEqual(self.obj.a, 1)
self.obj.a = 2
self.assertEqual(self.obj.a, 2)
self.assertNoMoreCalls()
self.forge.reset()
self.assertEqual(self.obj.a, 1)
def test__expect_setattr_not_happening(self):
self.obj.__forge__.expect_setattr("a", 666)
self.forge.replay()
with self.assertRaises(ExpectedEventsNotFound) as caught:
self.forge.verify()
self.assertEqual(len(caught.exception.events), 1)
self.assertIs(caught.exception.events[0].target, self.obj)
self.assertEqual(caught.exception.events[0].name, "a")
self.assertEqual(caught.exception.events[0].value, 666)
self.forge.reset()
@contextmanager
def assertUnexpectedSetattr(self, target, name, value):
with self.assertRaises(UnexpectedSetattr) as caught:
yield None
exception = caught.exception
self.assertIs(exception.got.target, target)
self.assertEqual(exception.got.name, name)
self.assertEqual(exception.got.value, value)
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