Started by adding some system tests for the api.

seasoned_api/test/helpers/createToken.js

@@ -0,0 +1,10 @@
+const User = require('src/user/user');
+const Token = require('src/user/token');
+
+function createToken(username, secret) {
+  const user = new User(username);
+  const token = new Token(user);
+  return token.toString(secret);
+}
+
+module.exports = createToken;