Add extra spec

spec/controllers/suppliers/lists_controller_spec.rb

@@ -14,6 +14,12 @@ describe Suppliers::ListsController do
       assigns(:lists).should eq([list])
     end
 
+    it "has pagination options if show_all is given" do
+      list = create :list, supplier: @supplier
+      get :index
+      assigns(:lists).should respond_to :num_pages
+    end
+
     it "does not include lists from another supplier" do
       list1 = create :list, supplier: @supplier
       list2 = create :list