Fix isolated test fail due to missing mocha
Fix isolated test fail due to missing mocha

rjordan/activeresource,om-nishu-trantor/activeresource,repinel/activeresource,yui-knk/activeresource,Shopify/activeresource,peterjm/activeresource,chadzilla2080/activeresource,maclover7/activeresource,eileencodes/activeresource,rails/activeresource,wyattisimo/activeresource,1776/activeresource,SweeD/activeresource,delameko/activeresource