diff --git a/src/lib/test/test-helper.hpp b/src/lib/test/test-helper.hpp
index 953f96dc6..631ad2ba9 100644
--- a/src/lib/test/test-helper.hpp
+++ b/src/lib/test/test-helper.hpp
@@ -175,4 +175,12 @@ namespace test{
               CHECK (lumiera_error_expect (LUMIERA_ERROR_##ERROR_ID));\
             }
 
+
+/**
+ * Macro to mark the current test function in STDOUT.
+ * This can be helpful to digest a long test output dump
+ */
+#define MARK_TEST_FUN \
+          cout << "|" << endl << "|  »"<<__FUNCTION__<<"«" <<endl;
+
 #endif /*LIB_TEST_TEST_HELPER_H*/
diff --git a/tests/gui/abstract-tangible-test.cpp b/tests/gui/abstract-tangible-test.cpp
index 1592917d0..11feafa8b 100644
--- a/tests/gui/abstract-tangible-test.cpp
+++ b/tests/gui/abstract-tangible-test.cpp
@@ -303,6 +303,7 @@ namespace test {
       void
       invokeCommand ()
         {
+          MARK_TEST_FUN
           EventLog nexusLog = gui::test::Nexus::startNewLog();
           
           // Setup test stage: define an command/action "in Proc"
@@ -339,7 +340,6 @@ namespace test {
           Command::get (DUMMY_CMD_ID).undo();
           CHECK (dummyState == prevState);
           
-          
           cout << "____Nexus-Log_________________\n"
                << util::join(nexusLog, "\n")
                << "\n───╼━━━━━━━━━╾────────────────"<<endl;