'Test the default store context manager, asking for a fake store'

def test_default_store_fake(self):

    self._initialize_mixed(mappings={})
    fake_store = 'fake'
    with self.assertRaisesRegexp(Exception, 'Cannot    find    store    of    type    {}'.format(fake_store)):
        with self.store.default_store(fake_store):
            pass
