def test_release_port_does_not_poke_system(self):
tracker = ports.PortTracker()
tracker.release_port = unittest.mock.MagicMock()
ports.is_port_free = unittest.mock.MagicMock()
tracker.release_port(22)
tracker.release_port.assert_called_once_with(22)
ports.is_port_free.assert_not_called()
def test_register_port(self):
tracker = ports.PortTracker()
ports.is_port_free = unittest.mock.MagicMock(return_value=True)
self.assertNotIn(22, tracker.retained_ports)
tracker.register_port(22)
ports.is_port_free.assert_called_once_with(22, tracker.address)
self.assertIn(22, tracker.retained_ports)
def test_release_port(self):
tracker = ports.PortTracker()
tracker.retained_ports = [22]
tracker.release_port(22)
self.assertNotIn(22, tracker.retained_ports)