refactored #decrement_stock and #increment_stock specs
refactored #decrement_stock and #increment_stock specs

sampritipanda/TakeMeAway,AgileVentures/TakeMeAway,diraulo/TakeMeAway,sampritipanda/TakeMeAway,diraulo/TakeMeAway,gromney/TakeMeAway,patmbolger/TakeMeAway,your/TakeMeAway,scootcho/TakeMeAway,scootcho/TakeMeAway,AgileVentures/TakeMeAway,scootcho/TakeMeAway,diraulo/TakeMeAway,AgileVentures/TakeMeAway,gromney/TakeMeAway,patmbolger/TakeMeAway,your/TakeMeAway,sampritipanda/TakeMeAway,patmbolger/TakeMeAway,your/TakeMeAway,gromney/TakeMeAway