Improve test script

Author: Jaewoook

test.sh

@@ -9,10 +9,22 @@ if [ ! -f $BINARY ]; then
 fi
 
 SAMPLE_DIR=./samples
+SUCCESS=0
+ERROR=0
 for SRC in "$SAMPLE_DIR"/*.js
 do
-    if [ -f $SRC ]; then
+    if [ -f $SRC ]
+    then
         echo -e "\nTest $SRC"
         $BINARY $SRC
+
+        if [ $? = 0 ]
+        then
+            ((SUCCESS++))
+        else
+            ((ERROR++))
+        fi
     fi
-done
+done
+
+echo "Result: $SUCCESS success, $ERROR error"