Update controller index action to order product drives by reverse chr…

…onological start date and add system test (#4044)

Gemfile.lock

@@ -740,4 +740,4 @@ DEPENDENCIES
   webmock (~> 3.19)
 
 BUNDLED WITH
-   2.4.22
+   2.5.4

app/controllers/product_drives_controller.rb

@@ -8,7 +8,7 @@ def index
                      .product_drives
                      .class_filter(filter_params)
                      .within_date_range(@selected_date_range)
-                     .order(created_at: :desc)
+                     .order(start_date: :desc)
     @selected_name_filter = filter_params[:by_name]
 
     respond_to do |format|

spec/system/product_drive_system_spec.rb

@@ -42,6 +42,10 @@
     it 'shows only one non-virtual product drive' do
       expect(page).to have_text(/No/, maximum: 1)
     end
+
+    it 'shows in descending order of start date' do
+      expect("Test name 2").to appear_before("Test name 1")
+    end
   end
 
   context 'when creating a normal product drive' do