diff --git a/examples/ClientTests/CMakeLists.txt b/examples/ClientTests/CMakeLists.txt
index 1a7733b4f9dcadc2d0b796ba38e584bc56271ec7..fa7a816f862221b5e20068a2d128389cdf479f08 100644
--- a/examples/ClientTests/CMakeLists.txt
+++ b/examples/ClientTests/CMakeLists.txt
@@ -30,8 +30,18 @@ dd4hep_install_dir( compact scripts DESTINATION ${DD4hep_DIR}/examples/ClientTes
 dd4hep_configure_scripts( ClientTests DEFAULT_SETUP WITH_TESTS)
 #---  Testing  ------------------------------------------------------------
 #
+#  Test JSON based parser
+dd4hep_add_test_reg( ClientTests_MiniTel_JSON_Dump
+  COMMAND    "${CMAKE_INSTALL_PREFIX}/bin/run_test_ClientTests.sh"
+  EXEC_ARGS  geoPluginRun -destroy -plugin DD4hep_JsonDumper
+  ${CMAKE_CURRENT_SOURCE_DIR}/compact/MiniTel.json
+  REGEX_PASS "Successfully dumped json input"
+  REGEX_FAIL "Exception"
+  REGEX_FAIL "FAILED"
+  )
+#
 #  Test JSON based detector construction
-dd4hep_add_test_reg( ClientTests_MiniTel_JSON
+dd4hep_add_test_reg( ClientTests_MiniTel_JSON_Detector
   COMMAND    "${CMAKE_INSTALL_PREFIX}/bin/run_test_ClientTests.sh"
   EXEC_ARGS  geoPluginRun -volmgr -destroy -plugin DD4hepCompactLoader
   file:${CMAKE_CURRENT_SOURCE_DIR}/compact/MiniTel_json.xml
diff --git a/examples/ClientTests/src_boost/JsonTest.cpp b/examples/ClientTests/src_boost/JsonDumper.cpp
similarity index 76%
rename from examples/ClientTests/src_boost/JsonTest.cpp
rename to examples/ClientTests/src_boost/JsonDumper.cpp
index 13cb089d9c07955b318c4463d6509a4adb495b13..471672bd3d186c77391f3b52f4e84b329f25e362 100644
--- a/examples/ClientTests/src_boost/JsonTest.cpp
+++ b/examples/ClientTests/src_boost/JsonDumper.cpp
@@ -15,23 +15,22 @@
 // Framework include files
 #include "JSON/Elements.h"
 #include "JSON/DocumentHandler.h"
+#include "DD4hep/Printout.h"
 #include "DD4hep/Factories.h"
 
-using namespace std;
 using namespace DD4hep;
-using namespace DD4hep::JSON;
-using namespace DD4hep::Geometry;
 
-static long json_dump(LCDD& /* lcdd */, int argc, char** argv)   {
+static long json_dump(Geometry::LCDD& /* lcdd */, int argc, char** argv)   {
   if ( argc < 1 )  {
     ::printf("DD4hep_JsonDumper <file>                               \n");
     exit(EINVAL);
   }
-  DocumentHolder doc(JSON::DocumentHandler().load(argv[0]));
+  std::string fname = argv[0];
+  JSON::DocumentHolder doc(JSON::DocumentHandler().load(fname));
   dumpTree(doc.root());
+  printout(INFO,"JsonDumper","+++ Successfully dumped json input: %s.",fname.c_str());
   return 1;
 }
-
 DECLARE_APPLY(DD4hep_JsonDumper,json_dump)
 
 #endif