Allow tests to dump output if not comparing

config/cmake_ext_mod/runTest.cmake

@@ -343,6 +343,14 @@ if (TEST_GREP_COMPARE)
   endif ()
 endif ()
 
+# dump the output unless nodisplay option is set
+if (TEST_SKIP_COMPARE AND NOT TEST_NO_DISPLAY)
+  execute_process (
+      COMMAND ${CMAKE_COMMAND} -E echo ${TEST_FOLDER}/${TEST_OUTPUT}
+      RESULT_VARIABLE TEST_RESULT
+  )
+endif ()
+
 # everything went fine...
 message (STATUS "${TEST_PROGRAM} Passed")