Start working on a proper PayPal spec

The specs we copied didn't really add any coverage to the PayPal
controllers in the extension, so this change starts work on actually
testing the PayPal flow.

Author: forkata

storefront/templates/spec/system/paypal_spec.rb

@@ -13,7 +13,16 @@ def js_sdk_script_partner_id
 
   describe "paypal payment method" do
     let(:order) { Spree::TestingSupport::OrderWalkthrough.up_to(:payment) }
-    let(:paypal_payment_method) { create(:paypal_payment_method) }
+    let(:paypal_payment_method) {
+      create(
+        :paypal_payment_method,
+        preferences: {
+          client_id: ENV['PAYPAL_CLIENT_ID'],
+          client_secret: ENV['PAYPAL_CLIENT_SECRET'],
+          venmo_standalone: 'disabled'
+        }
+      )
+    }
     let(:failed_response) { double('response', status_code: 500) } # rubocop:disable RSpec/VerifiedDoubles
 
     before do
@@ -72,9 +81,9 @@ def js_sdk_script_partner_id
       it "proceeds to the next step" do
         visit '/checkout/payment'
         choose(option: paypal_payment_method.id)
-        find(:xpath, "//input[@id='payments_source_paypal_order_id']", visible: false).set SecureRandom.hex(8)
         click_button("Save and Continue")
         expect(page).to have_css(".current", text: "Confirm")
+        binding.irb
       end
 
       it "records the paypal email address" do