Add spec for saving product and variant simultaneously

spec/features/admin/product_import_spec.rb

@@ -201,6 +201,44 @@ feature "Product Import", js: true do
       expect(Spree::Product.find_by_name('Beans').on_hand).to eq 0
     end
 
+    it "can save a new product and variant of that product at the same time" do
+      csv_data = CSV.generate do |csv|
+        csv << ["name", "supplier", "category", "on_hand", "price", "units", "unit_type", "display_name"]
+        csv << ["Potatoes", "User Enterprise", "Vegetables", "5", "3.50", "500", "g", "Small Bag"]
+        csv << ["Potatoes", "User Enterprise", "Vegetables", "6", "5.50", "2", "kg", "Big Bag"]
+      end
+      File.write('/tmp/test.csv', csv_data)
+
+      visit main_app.admin_product_import_path
+      attach_file 'file', '/tmp/test.csv'
+      click_button 'Upload'
+
+      import_data
+
+      expect(page).to have_selector '.item-count', text: "2"
+      expect(page).to_not have_selector '.invalid-count'
+      expect(page).to have_selector '.create-count', text: "2"
+      expect(page).to_not have_selector '.update-count'
+      expect(page).to_not have_selector '.update-count'
+      expect(page).to_not have_selector '.inv-create-count'
+      expect(page).to_not have_selector '.inv-update-count'
+
+      save_data
+
+      small_bag = Spree::Variant.find_by_display_name('Small Bag')
+      expect(small_bag.product.name).to eq 'Potatoes'
+      expect(small_bag.price).to eq 3.50
+      expect(small_bag.on_hand).to eq 5
+
+      big_bag = Spree::Variant.find_by_display_name('Big Bag')
+      expect(big_bag.product.name).to eq 'Potatoes'
+      expect(big_bag.price).to eq 5.50
+      expect(big_bag.on_hand).to eq 6
+
+      expect(big_bag.product.id).to eq small_bag.product.id
+    end
+
+
     it "can import items into inventory" do
       csv_data = CSV.generate do |csv|
         csv << ["name", "supplier", "producer", "category", "on_hand", "price", "units"]