Add comprehensive tests for role middleware and fix package dependencies

node_modules/@sinonjs/samsam/lib/is-object.js

@@ -0,0 +1,31 @@
+"use strict";
+
+/**
+ * Returns `true` when the value is a regular Object and not a specialized Object
+ *
+ * This helps speed up deepEqual cyclic checks
+ *
+ * The premise is that only Objects are stored in the visited array.
+ * So if this function returns false, we don't have to do the
+ * expensive operation of searching for the value in the the array of already
+ * visited objects
+ *
+ * @private
+ * @param  {object}   value The object to examine
+ * @returns {boolean}       `true` when the object is a non-specialised object
+ */
+function isObject(value) {
+    return (
+        typeof value === "object" &&
+        value !== null &&
+        // none of these are collection objects, so we can return false
+        !(value instanceof Boolean) &&
+        !(value instanceof Date) &&
+        !(value instanceof Error) &&
+        !(value instanceof Number) &&
+        !(value instanceof RegExp) &&
+        !(value instanceof String)
+    );
+}
+
+module.exports = isObject;