def test_get_interface_driver_fail_empty(self):
     mocked_open = mock.mock_open(read_data='DRIVER\n')
     self.stub_out('os_net_config.utils.open', mocked_open)
     driver = utils.get_interface_driver('eth1')
     self.assertFalse(driver)
 def test_get_interface_driver(self):
     mocked_open = mock.mock_open(read_data='DRIVER=vfio-pci\n')
     self.stub_out('os_net_config.utils.open', mocked_open)
     driver = utils.get_interface_driver('eth1')
     self.assertEqual(driver, 'vfio-pci')