Order shipping methods by name

+ create spec

app/controllers/concerns/checkout_callbacks.rb

@@ -47,7 +47,7 @@ module CheckoutCallbacks
   end
 
   def load_shipping_methods
-    @shipping_methods = available_shipping_methods
+    @shipping_methods = available_shipping_methods.sort_by(&:name)
   end
 
   def redirect_to_shop?

spec/system/consumer/split_checkout_spec.rb

@@ -182,6 +182,11 @@ describe "As a consumer, I want to checkout my order", js: true do
         expect(page).not_to have_content "Save as default shipping address"
       end
 
+      it 'display shipping methods alphabetically' do
+        shipping_methods = page.all(:field, "shipping_method_id").map { |field| field.sibling("label") }.map(&:text)
+        expect(shipping_methods).to eq ["A Free Shipping with required address", "Free Shipping", "Local", "Shipping with Fee", "Z Free Shipping without required address"]
+      end
+
       it_behaves_like "when I have an out of stock product in my cart"
     end