Add comprehensive tests for role middleware and fix package dependencies

node_modules/@sinonjs/samsam/lib/create-matcher/is-matcher.js

@@ -0,0 +1,18 @@
+"use strict";
+
+var isPrototypeOf = require("@sinonjs/commons").prototypes.object.isPrototypeOf;
+
+var matcherPrototype = require("./matcher-prototype");
+
+/**
+ * Returns `true` when `object` is a matcher
+ *
+ * @private
+ * @param {*} object A value to examine
+ * @returns {boolean} Returns `true` when `object` is a matcher
+ */
+function isMatcher(object) {
+    return isPrototypeOf(matcherPrototype, object);
+}
+
+module.exports = isMatcher;