Improve feature toggling

app/views/split_checkout/_payment.html.haml

@@ -1,5 +1,5 @@
 .medium-6#checkout-payment-methods
-  - if @order.distributor.vouchers.present?
+  - if feature?(:vouchers, spree_current_user) && @order.distributor.vouchers.present?
     %div.checkout-substep
       = render partial: "split_checkout/voucher_section", locals: { order: @order, voucher_adjustment: @order.voucher_adjustments.first }
 

spec/system/consumer/split_checkout_spec.rb

@@ -707,6 +707,8 @@ describe "As a consumer, I want to checkout my order" do
       end
 
       describe "vouchers" do
+        before { Flipper.enable :vouchers }
+
         context "with no voucher available" do
           before do
             visit checkout_step_path(:payment)

spec/system/consumer/split_checkout_tax_incl_spec.rb

@@ -106,6 +106,8 @@ describe "As a consumer, I want to see adjustment breakdown" do
       end
 
       context "when using a voucher" do
+        before { Flipper.enable :vouchers }
+
         let!(:voucher) do
           create(:voucher, code: 'some_code', enterprise: distributor, amount: 10)
         end

spec/system/consumer/split_checkout_tax_not_incl_spec.rb

@@ -63,6 +63,7 @@ describe "As a consumer, I want to see adjustment breakdown" do
   before do
     # assures tax is charged in dependence of shipping address
     Spree::Config.set(tax_using_ship_address: true)
+    Flipper.enable :vouchers
   end
 
   describe "a not-included tax" do