Added test directory to eslint

package.json

@@ -12,7 +12,7 @@
   ],
   "scripts": {
     "copy-file": "cp dist/CookieMonster.js CookieMonster.js",
-    "eslint-src": "eslint src",
+    "eslint-src": "eslint src test",
     "build": "run-s eslint-src pack-prod remove-comment copy-file test",
     "build-test": "run-s pack-dev",
     "pack-prod": "webpack --env production",