Add spec to verify partner request view units [#4399]

spec/requests/partners/requests_spec.rb

@@ -89,6 +89,37 @@
       get partners_request_path(other_request)
       expect(response.code).to eq("404")
     end
+
+    it 'should show the units if they are provided and enabled' do
+      item1 = create(:item, name: "First item")
+      item2 = create(:item, name: "Second item")
+      item3 = create(:item, name: "Third item")
+      create(:item_unit, item: item1, name: "flat")
+      create(:item_unit, item: item2, name: "flat")
+      create(:item_unit, item: item3, name: "flat")
+      request = create(
+        :request,
+        partner_id: partner.id,
+        partner_user_id: partner_user.id,
+        request_items: [
+          {item_id: item1.id, quantity: '125'},
+          {item_id: item2.id, quantity: '559', request_unit: 'flat'},
+          {item_id: item3.id, quantity: '1', request_unit: 'flat'}
+        ]
+      )
+
+      Flipper.enable(:enable_packs)
+      get partners_request_path(request)
+      expect(response.body).to match(/125\s+of\s+First item/m)
+      expect(response.body).to match(/559\s+flats\s+of\s+Second item/m)
+      expect(response.body).to match(/1\s+flat\s+of\s+Third item/m)
+
+      Flipper.disable(:enable_packs)
+      get partners_request_path(request)
+      expect(response.body).to match(/125\s+of\s+First item/m)
+      expect(response.body).to match(/559\s+of\s+Second item/m)
+      expect(response.body).to match(/1\s+of\s+Third item/m)
+    end
   end
 
   describe "POST #create" do