NewJO HLT tests uses references

Trigger/TrigValidation/TriggerTest/test/test_trig_data_newJO_build.py

 #!/usr/bin/env python
-# Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
+# Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
 
 # art-description: Trigger AthenaMT test running new-style job options
 # art-type: build
@@ -20,7 +20,7 @@ copy_jo.auto_report_result = False  # Do not set art-result for this step
 copy_jo.output_stream = Step.Step.OutputStream.STDOUT_ONLY  # Do not create a log file for this step
 
 # Generate configuration run file
-run = ExecStep.ExecStep('athena')
+run = ExecStep.ExecStep('athena_run')
 run.type = 'other'
 run.input = 'data'
 run.executable = 'python'
@@ -34,15 +34,19 @@ run.prmon = False
 # The full test configuration
 test = Test.Test()
 test.art_type = 'build'
-#test.check_steps = CheckSteps.default_check_steps(test)
 test.exec_steps = [copy_jo, run]
-check_log = CheckSteps.CheckLogStep('CheckLog')
-check_log.log_file = run.get_log_file_name()
-test.check_steps = [check_log]
-
-# Change RegTest pattern
-#regtest = test.get_step('RegTest')
-#regtest.regex = r'TrigSignatureMoniMT\s*INFO\sHLT_.*|TrigSignatureMoniMT\s*INFO\s-- #[0-9]+ (Events|Features).*'
+test.check_steps = CheckSteps.default_check_steps(test)
+[t for t in test.check_steps if isinstance(t, CheckSteps.MessageCountStep)][0].args='athena_run.log'
+
+
+chaindump = test.get_step("ChainDump")
+chaindump.args = '--json --yaml ref_data_newJO_build.new'
+# In future, when this is primary test will enable strict reference checking 
+# The code below does so.
+# refcomp = CheckSteps.ChainCompStep("CountRefComp")
+# refcomp.input_file = 'ref_data_newJO_build.new'
+# refcomp.required = True # Final exit code depends on this step
+# CheckSteps.add_step_after_type(test.check_steps, CheckSteps.ChainDumpStep, refcomp)
 
 import sys
 sys.exit(test.run())