def METHOD_NAME(device_out, service_for_diff):
    """Test that fields out of the schema are ignored in comparison
    """
    new_out = deepcopy(device_out)
    # Add a dummy field in all the dict of new_out
    out_of_schema_fields = {
        'value1_temp': 'temp1',
        'value2_temp': 'temp2',
        'value3_temp': 'temp3'
    }
    for n in new_out:
        n.update(out_of_schema_fields)
    adds, dels = service_for_diff.get_diff(device_out, new_out, add_all=False)
    assert not adds, 'Returned adds, but only added fields out of schema'
    assert not dels, 'Returned dels, but only added fields out of schema'