lib/active_merchant/billing/gateways/paystation.rb in activemerchant-1.86.0 vs lib/active_merchant/billing/gateways/paystation.rb in activemerchant-1.87.0

@@ -177,10 +177,10 @@
           data     = ssl_post(self.live_url, "#{pstn_prefix_params}&paystation=_empty")
           response = parse(data)
           message  = message_from(response)
 
           PaystationResponse.new(success?(response), message, response,
-            :test          => (response[:tm] && response[:tm].downcase == 't'),
+            :test          => (response[:tm]&.casecmp('t')&.zero?),
             :authorization => response[:paystation_transaction_id]
           )
         end
 
         def success?(response)