simplify cmake code for tuning tests

add a post command to the runSimulator script and use this to
execute the unit test at the end of the run

tests/run-test.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-# This simply runs a simulator.
+# This runs a simulator and optionally a post command in result directory.
 
 if test $# -eq 0
 then
@@ -11,12 +11,15 @@ then
   echo -e "\t\t -b <path>     Path to simulator binary"
   echo -e "\t\t -f <filename> Deck file name"
   echo -e "\t\t -e <filename> Simulator binary to use"
+  echo -e "\tOptional options:"
   echo -e "\t\t -n <procs >   Number of MPI processes to use"
+  echo -e "\t\t -p <cmd>      Post-command to execute"
   exit 1
 fi
 
 OPTIND=1
-while getopts "i:r:b:f:e:n:" OPT
+MPI_PROCS=1
+while getopts "i:r:b:f:e:n:p:" OPT
 do
   case "${OPT}" in
     i) INPUT_DATA_PATH=${OPTARG} ;;
@@ -25,6 +28,7 @@ do
     f) FILENAME=${OPTARG} ;;
     e) EXE_NAME=${OPTARG} ;;
     n) MPI_PROCS=${OPTARG} ;;
+    p) POST_COMMAND=${OPTARG} ;;
   esac
 done
 shift $(($OPTIND-1))
@@ -38,3 +42,9 @@ else
   ${BINPATH}/${EXE_NAME} ${TEST_ARGS} --output-dir=${RESULT_PATH} "${INPUT_DATA_PATH}/${FILENAME}.DATA"
 fi
 test $? -eq 0 || exit 1
+
+if test -n "${POST_COMMAND}"
+then
+  cd $RESULT_PATH
+  ${POST_COMMAND}
+fi