Merge pull request #6528 from mprieger/5546-cart-page-last-item-deletion

Fix users removing last item of confirmed order on /cart page

spec/javascripts/unit/darkswarm/services/cart_spec.js.coffee

@@ -222,6 +222,13 @@ describe 'Cart service', ->
         expect(li.quantity).toEqual 1
         expect(li.max_quantity).toEqual 1
 
+  describe "when modifying a confirmed order", ->
+    it "displays flash error when attempting to remove final item", ->
+      spyOn(RailsFlashLoader, 'loadFlash')
+      li = {variant: {id: 1}, quantity: 3}
+      Cart.line_items_finalised = [li]
+      expect(Cart.has_one_line_item()).toBe(true)
+
   it "pops the queue", ->
     Cart.update_enqueued = true
     spyOn(Cart, 'scheduleUpdate')