def test_data_received_in_bad_state(self):
"""
Ensure the correct RuntimeError is called if the state of the FSM is
invalid.
"""
transport = mock.MagicMock()
transport.close = mock.MagicMock()
connector = mock.MagicMock()
node = mock.MagicMock()
p = NetstringProtocol(connector, node)
p.connection_made(transport)
p._reader_state = 4
with self.assertRaises(RuntimeError):
p.data_received('11:hello world@'.encode('utf-8'))
