Address issues found in test/test.js [Opened by bitHound]

 bitHound discovered 1 LintIssue, and 2 DuplicateFunctions in [test/test.js](https://github.com/AlbertoFdzM/express-implhandler/blob/b055a23b5f55974d85db70055db26a5b02cb8151/test/test.js). For details go to [bitHound](https://www.bithound.io/github/AlbertoFdzM/express-implhandler/blob/b055a23b5f55974d85db70055db26a5b02cb8151/test/test.js). 
