Added test for Item#respond_to?
Added test for Item#respond_to?

Fixes #532.

alphagov/tire,mavenlink/retire,dbose/retire,iamrahulroy/retire,elbuo8/retire,zaharpecherin/retire,Telmate/tire,karmi/retire,tklee/tire_shiphawk,doximity/tire,rubydubee/retire,HenleyChiu/tire,fabn/retire,brijeshgpt7/retire,ChapterMedia/tire,1776/tire