def METHOD_NAME():
    '''Test that the setters and getters work as expected.'''
    value = "domain"
    operates_on_metadata = OperatesOnMetadata(value)
    assert operates_on_metadata.operates_on == value
    value = "cell_column"
    operates_on_metadata.operates_on = value
    assert operates_on_metadata._operates_on == value
    value = "DOMAIN"
    operates_on_metadata.operates_on = value
    assert operates_on_metadata._operates_on == value.lower()