Fix "Resend Confirmation" link and add missing test coverage

app/helpers/spree/admin/orders_helper.rb

@@ -62,7 +62,6 @@ module Spree
         { name: t(:resend_confirmation),
           url: spree.resend_admin_order_path(@order),
           icon: 'icon-email',
-          method: 'post',
           confirm: t(:confirm_resend_order_confirmation) }
       end
 

config/routes/spree.rb

@@ -86,7 +86,7 @@ Spree::Core::Engine.routes.draw do
       member do
         put :fire
         get :fire
-        post :resend
+        get :resend
         get :invoice
         get :print
         get :distribution

spec/system/admin/order_spec.rb

@@ -611,6 +611,24 @@ describe '
                                     href: spree.fire_admin_order_path(order, e: 'cancel')
         end
       end
+
+      context "Resending confirmation email" do
+        before do
+          visit spree.edit_admin_order_path(order)
+          find("#links-dropdown .ofn-drop-down").click
+        end
+
+        it "shows the link" do
+          expect(page).to have_link "Resend Confirmation", href: spree.resend_admin_order_path(order)
+        end
+
+        it "resends the confirmation email" do
+          accept_alert "Are you sure you want to resend the order confirmation email?" do
+            click_link "Resend Confirmation"
+          end
+          expect(page).to have_content "Order email has been resent"
+        end
+      end
       
       context "Check send/print invoice links" do