Added test that shows how intended behaviour that fails today
Added test that shows how intended behaviour that fails today

Documents issue #818

pghalliday/Sinon.JS,cleberar38/Sinon.JS,mmckech/Sinon.JS,timwienk/sinon,andpor/sinon,timwienk/sinon,grassator/Sinon.JS,jishi/sinon,jishi/sinon,dotchev/Sinon.JS,grassator/Sinon.JS,cjohansen/Sinon.JS,mmckech/Sinon.JS,pghalliday/Sinon.JS,fatso83/Sinon.JS,andpor/sinon,cleberar38/Sinon.JS,ryanwholey/Sinon.JS,mroderick/Sinon.JS,dotchev/Sinon.JS,pghalliday/Sinon.JS,mmckech/Sinon.JS,fatso83/Sinon.JS,ryanwholey/Sinon.JS,cleberar38/Sinon.JS,timwienk/sinon,jishi/sinon,fatso83/Sinon.JS,cjohansen/Sinon.JS,Khan/Sinon.JS,andpor/sinon,grassator/Sinon.JS,Khan/Sinon.JS,dotchev/Sinon.JS,ryanwholey/Sinon.JS,mroderick/Sinon.JS,Khan/Sinon.JS,mroderick/Sinon.JS,cjohansen/Sinon.JS