Add comprehensive tests for role middleware and fix package dependencies

node_modules/argparse/package.json

@@ -0,0 +1,31 @@
+{
+  "name": "argparse",
+  "description": "CLI arguments parser. Native port of python's argparse.",
+  "version": "2.0.1",
+  "keywords": [
+    "cli",
+    "parser",
+    "argparse",
+    "option",
+    "args"
+  ],
+  "main": "argparse.js",
+  "files": [
+    "argparse.js",
+    "lib/"
+  ],
+  "license": "Python-2.0",
+  "repository": "nodeca/argparse",
+  "scripts": {
+    "lint": "eslint .",
+    "test": "npm run lint && nyc mocha",
+    "coverage": "npm run test && nyc report --reporter html"
+  },
+  "devDependencies": {
+    "@babel/eslint-parser": "^7.11.0",
+    "@babel/plugin-syntax-class-properties": "^7.10.4",
+    "eslint": "^7.5.0",
+    "mocha": "^8.0.1",
+    "nyc": "^15.1.0"
+  }
+}