def test_update_owner():
api_manager_mock = Mock()
api_manager_mock.put.return_value = 'SUCCESS'
owner_services = OwnerServices(api_manager_mock)
owner = {'username': '******', 'x_password': '******', 'x_registration_date': '2015-01-01T12:00:00'}
update = owner_services.update(owner)
api_manager_mock.put.assert_called_with('owners/USERNAME', {'username': '******', 'x_registration_date': '2015-01-01T12:00:00', 'x_password': '******'})
assert update == 'SUCCESS'
