Mocking only a single method on an object

Question

I\'m familiar with other mocking libraries in other languages such as Mockito in Java, but Python\'s mock library confuses the life out of me.

I have th

Answer 1

I think what you are looking for is mock.patch.object

with mock.patch.object(MyClassUnderTest, "submethod") as submethod_mocked:
    submethod_mocked.return_value = 13
    MyClassUnderTest().main_method()
    submethod_mocked.assert_called_once_with(user_id, 100, self.context,
                                             self.account_type)

Here is small description

 patch.object(target, attribute, new=DEFAULT, 
              spec=None, create=False, spec_set=None, 
              autospec=None, new_callable=None, **kwargs)

patch the named member (attribute) on an object (target) with a mock object.