Do not show any links to other steps when no distribution set

distribution means tuple: distributor + order cycle

app/views/spree/admin/shared/_order_tabs.html.haml

@@ -42,25 +42,26 @@
         %dd#date_complete
           = pretty_time(@order.completed_at)
 
-  %nav.menu
-    %ul
-      - customer_details_classes = "active" if current == "Customer Details"
-      %li{ class: customer_details_classes }
-        = link_to_with_icon 'icon-user', t(:customer_details), spree.admin_order_customer_url(@order)
+  - if @order.distribution_set?
+    %nav.menu
+      %ul
+        - customer_details_classes = "active" if current == "Customer Details"
+        %li{ class: customer_details_classes }
+          = link_to_with_icon 'icon-user', t(:customer_details), spree.admin_order_customer_url(@order)
 
-      - order_details_classes = "active" if current == "Order Details"
-      %li{ class: order_details_classes }
-        = link_to_with_icon 'icon-edit', t(:order_details), spree.edit_admin_order_url(@order)
+        - order_details_classes = "active" if current == "Order Details"
+        %li{ class: order_details_classes }
+          = link_to_with_icon 'icon-edit', t(:order_details), spree.edit_admin_order_url(@order)
 
-      - payments_classes = "active" if current == "Payments"
-      %li{ class: payments_classes }
-        = link_to_with_icon 'icon-credit-card', t(:payments), spree.admin_order_payments_url(@order)
+        - payments_classes = "active" if current == "Payments"
+        %li{ class: payments_classes }
+          = link_to_with_icon 'icon-credit-card', t(:payments), spree.admin_order_payments_url(@order)
 
-      - adjustments_classes = "active" if current == "Adjustments"
-      %li{ class: adjustments_classes }
-        = link_to_with_icon 'icon-cogs', t(:adjustments), spree.admin_order_adjustments_url(@order)
+        - adjustments_classes = "active" if current == "Adjustments"
+        %li{ class: adjustments_classes }
+          = link_to_with_icon 'icon-cogs', t(:adjustments), spree.admin_order_adjustments_url(@order)
 
-      - if @order.completed?
-        - authorizations_classes = "active" if current == "Return Authorizations"
-        %li{ class: authorizations_classes }
-          = link_to_with_icon 'icon-share-alt', t(:return_authorizations), spree.admin_order_return_authorizations_url(@order)
+        - if @order.completed?
+          - authorizations_classes = "active" if current == "Return Authorizations"
+          %li{ class: authorizations_classes }
+            = link_to_with_icon 'icon-share-alt', t(:return_authorizations), spree.admin_order_return_authorizations_url(@order)

spec/system/admin/order_spec.rb

@@ -109,6 +109,40 @@ describe '
 
       expect(page).to have_content "Order cycle can't be blank"
     end
+
+    it "doesn't show links to other steps" do
+      expect(page).not_to have_content "CUSTOMER DETAILS"
+      expect(page).not_to have_content "ORDER DETAILS"
+      expect(page).not_to have_content "PAYMENTS"
+      expect(page).not_to have_content "ADJUSTMENTS"
+    end
+  end
+
+  context "when order has a distributor and order cycle" do
+    before do
+      order.distributor = distributor
+      order.order_cycle = order_cycle
+      order.save!
+      login_as_admin
+      visit spree.distribution_admin_order_path(order)
+    end
+
+    it "can access the `/distribution` step" do
+      expect(current_path).to eq spree.distribution_admin_order_path(order)
+      expect(page).to have_content "DISTRIBUTION"
+    end
+
+    it "shows the distributor and order cycle" do
+      expect(page).to have_content distributor.name
+      expect(page).to have_content order_cycle.name
+    end
+
+    it "shows links to other steps" do
+      expect(page).to have_content "CUSTOMER DETAILS"
+      expect(page).to have_content "ORDER DETAILS"
+      expect(page).to have_content "PAYMENTS"
+      expect(page).to have_content "ADJUSTMENTS"
+    end
   end
 
   it "can add a product to an existing order" do