python.TrigValSteering.CheckSteps.RegTestStep Node1 python.TrigValSteering.Check Steps.RegTestStep + regex + executable + input_base_name + auto_report_result + output_stream + input_file + result + __init__() + configure() + prepare_inputs() + rename_ref() + run() Node2 python.TrigValSteering.Check Steps.RefComparisonStep + reference + ref_test_name + input_file + explicit_reference + __init__() + configure() Node2->Node1 Node3 Step Node3->Node2