def METHOD_NAME(processor, test_trace, data_source, peer_service_config):
    processor._set_defaults_enabled = False
    span = test_trace[0]
    span.set_tag(data_source, "test_value")
    processor.process_trace(test_trace)
    assert span.get_tag(peer_service_config.tag_name) is None
    assert span.get_tag(peer_service_config.source_tag_name) is None