def test_network_state_change(self):
"""Test the changes in the network connection."""
nms = NetworkManagerState(self._listen_network_changes)
nms._state_changed(2)
nms._state_changed(0) # 0 or anything other than 2
nms._state_changed(2)
self.assertEqual(self.network_changes, [ONLINE, OFFLINE, ONLINE])
