diff --git a/test.sh b/test.sh
index 0393ca9..db44f5f 100755
--- a/test.sh
+++ b/test.sh
@@ -50,11 +50,14 @@ function usage (){
     msg "\t<arguments>**:**<code_retour_attendu>\n\n"
 }
 
-echo " Hououuuu ${PWD}"
+msg "**ADSILLH Bash return code test**\n"
 process_args $@
+[[ -z $COMMAND || -z $TEST_FILE ]] && error "You must specity a command and a test file"
 msg "Test $COMMAND script with $TEST_FILE\n\n"
 
 cd $DIR
+[ ! -f $COMMAND ] && error "script **$COMMAND** not found"
+
 while IFS='' read -r i || [[ -n "$line" ]]; do
     args=$(echo $i | cut -d: -f1)
     e_code=$(echo $i | cut -d: -f2)