diff --git a/Event/xAOD/xAODTrigMissingETAthenaPool/CMakeLists.txt b/Event/xAOD/xAODTrigMissingETAthenaPool/CMakeLists.txt
index 1527466b09e7e1a323e74a73b619a8c556461322..ba559278a65e0a6785d76f9b581aa40b92afb785 100644
--- a/Event/xAOD/xAODTrigMissingETAthenaPool/CMakeLists.txt
+++ b/Event/xAOD/xAODTrigMissingETAthenaPool/CMakeLists.txt
@@ -16,6 +16,7 @@ atlas_add_poolcnv_library( xAODTrigMissingETAthenaPoolPoolCnv
 
 # Install files from the package.
 atlas_install_joboptions( share/*.py )
+atlas_install_scripts( test/*.py POST_BUILD_CMD ${ATLAS_FLAKE8} )
 
 # Set up (a) test(s) for the converter(s):
 find_package( AthenaPoolUtilitiesTest )
@@ -23,7 +24,7 @@ find_package( AthenaPoolUtilitiesTest )
 if( ATHENAPOOLUTILITIESTEST_FOUND )
   set( XAODTRIGMISSINGETATHENAPOOL_REFERENCE_TAG
        xAODTrigMissingETAthenaPoolReference-01-00-00 )
-  run_tpcnv_legacy_test( xAODTrigMissingETAthenaPool_21.0.79   AOD-21.0.79-full
+  run_tpcnv_test( xAODTrigMissingETAthenaPool_21.0.79   AOD-21.0.79-full
                    REQUIRED_LIBRARIES xAODTrigMissingETAthenaPoolPoolCnv
                    REFERENCE_TAG ${XAODTRIGMISSINGETATHENAPOOL_REFERENCE_TAG} )
 else()
diff --git a/Event/xAOD/xAODTrigMissingETAthenaPool/share/xAODTrigMissingETAthenaPool_21.0.79.ref b/Event/xAOD/xAODTrigMissingETAthenaPool/share/xAODTrigMissingETAthenaPool_21.0.79.ref
index 27e6e673417e2c52fdbbaf5609855d7827f569d7..481734e632295954f90269dc2f076898b75700c5 100644
--- a/Event/xAOD/xAODTrigMissingETAthenaPool/share/xAODTrigMissingETAthenaPool_21.0.79.ref
+++ b/Event/xAOD/xAODTrigMissingETAthenaPool/share/xAODTrigMissingETAthenaPool_21.0.79.ref
@@ -510,8 +510,6 @@ IOVDbSvc             INFO Disconnecting from COOLOFL_TRT/OFLP200
 Domain[ROOT_All]     INFO ->  Access   DbDatabase   READ      [ROOT_All] C634B46D-ECB2-A045-91CC-00A82369D887
 Domain[ROOT_All]     INFO                           /home/sss/atlas/DBRelease/current/poolcond/cond09_mc.000070.gen.COND/cond12_data.000029.gen.COND._0001.pool.root
 RootDatabase.open    INFO /home/sss/atlas/DBRelease/current/poolcond/cond09_mc.000070.gen.COND/cond12_data.000029.gen.COND._0001.pool.root File version:53005
-PixelDetectorMa...WARNING Cannot set AlignableTransform for identifier  [2.1.0.0.0.-4.256.0] at level 2
-PixelDetectorMa...WARNING Subsequent WARNINGS will be printed at DEBUG level.
 PixelDetectorMa...   INFO Processing IBLDist alignment container with key (/Indet/IBLDist) and alignment folder pointing to /Indet/Align
 Domain[ROOT_All]     INFO ->  Access   DbDatabase   READ      [ROOT_All] D67CA215-C5CB-DF11-954C-000423DC2158
 Domain[ROOT_All]     INFO                           /home/sss/atlas/DBRelease/current/poolcond/cond09_mc.000019.gen.COND/cond09_mc.000019.gen.COND._0010.pool.root
diff --git a/Event/xAOD/xAODTrigMissingETAthenaPool/test/xAODTrigMissingETAthenaPool_21.0.79_test.py b/Event/xAOD/xAODTrigMissingETAthenaPool/test/xAODTrigMissingETAthenaPool_21.0.79_test.py
new file mode 100755
index 0000000000000000000000000000000000000000..658ee021b7aef76e392f9f6050dd98cff9961714
--- /dev/null
+++ b/Event/xAOD/xAODTrigMissingETAthenaPool/test/xAODTrigMissingETAthenaPool_21.0.79_test.py
@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+"""
+Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
+"""
+
+from AthenaPoolUtilities.TPCnvTestConfig import TPCnvTest
+
+if __name__ == "__main__":
+
+    infile = 'aod/AOD-21.0.79/AOD-21.0.79-full.pool.root'
+    keys = [
+        #xAOD::TrigMissingETAuxContainer_v1
+        'HLT_xAOD__TrigMissingETContainer_EFJetEtSum',
+        'HLT_xAOD__TrigMissingETContainer_EFMissingET_Fex_2sidednoiseSupp_PUC',
+        'HLT_xAOD__TrigMissingETContainer_T2MissingET',
+        'HLT_xAOD__TrigMissingETContainer_TrigEFMissingET',
+        'HLT_xAOD__TrigMissingETContainer_TrigEFMissingET_FEB',
+        'HLT_xAOD__TrigMissingETContainer_TrigEFMissingET_mht',
+        'HLT_xAOD__TrigMissingETContainer_TrigEFMissingET_topocl',
+        'HLT_xAOD__TrigMissingETContainer_TrigEFMissingET_topocl_PS',
+        'HLT_xAOD__TrigMissingETContainer_TrigEFMissingET_topocl_PUC',
+        'HLT_xAOD__TrigMissingETContainer_TrigL2MissingET_FEB',
+             ]
+
+    TPCnvTest(infile, keys)