Remove the banner from confirmation email if hide_ofn_navigation is true

+ add specs that test for the presence of the footer logo which is in the header (I know ;))

app/mailers/subscription_mailer.rb

@@ -11,6 +11,7 @@ class SubscriptionMailer < ApplicationMailer
   def confirmation_email(order)
     @type = 'confirmation'
     @order = order
+    @hide_ofn_navigation = @order.distributor.hide_ofn_navigation
     send_mail(order)
   end
 

app/views/layouts/mailer.html.haml

@@ -7,19 +7,20 @@
       = Spree::Config[:site_name]
     = stylesheet_pack_tag 'mail'
   %body{:bgcolor => "#FFFFFF" }
-    %table.head-wrap{:bgcolor => "#f2f2f2"}
-      %tr
-        %td
-        %td.header.container
-          .content
-            %table{:bgcolor => "#f2f2f2"}
-              %tr
-                %td
-                  %img{src: ContentConfig.url_for(:footer_logo), width: "144", height: "50"}/
-                %td{:align => "right"}
-                  %h6.collapse
-                    = Spree::Config[:site_name]
-        %td
+    - unless @hide_ofn_navigation
+      %table.head-wrap{:bgcolor => "#f2f2f2"}
+        %tr
+          %td
+          %td.header.container
+            .content
+              %table{:bgcolor => "#f2f2f2"}
+                %tr
+                  %td
+                    %img{src: ContentConfig.url_for(:footer_logo), width: "144", height: "50"}/
+                  %td{:align => "right"}
+                    %h6.collapse
+                      = Spree::Config[:site_name]
+          %td
 
     %table.body-wrap
       %tr

spec/mailers/subscription_mailer_spec.rb

@@ -117,6 +117,10 @@
       expect(body).to include "This order was automatically placed for you"
     end
 
+    it "display the OFN header by default" do
+      expect(email.body).to include(ContentConfig.url_for(:footer_logo))
+    end
+
     describe "linking to order page" do
       let(:order_link_href) { "href=\"#{order_url(order)}\"" }
 
@@ -152,6 +156,16 @@
         expect(email.body).to include('NOT PAID')
       end
     end
+
+    context 'when hide OFN navigation is enabled for the distributor of the order' do
+      before do
+        allow(order.distributor).to receive(:hide_ofn_navigation).and_return(true)
+      end
+
+      it 'does not display the OFN navigation' do
+        expect(email.body).to_not include(ContentConfig.url_for(:footer_logo))
+      end
+    end
   end
 
   describe "empty order notification" do