lib/braintree/customer.rb in braintree-1.1.2 vs lib/braintree/customer.rb in braintree-1.1.3

@@ -77,10 +77,10 @@
       Http.delete("/customers/#{customer_id}")
       SuccessfulResult.new
     end
 
     def self.find(customer_id)
-      raise ArgumentError, "customer_id should be a string" unless customer_id.is_a?(String)
+      raise ArgumentError, "customer_id contains invalid characters" unless customer_id.to_s =~ /\A[\w-]+\z/
       raise ArgumentError, "customer_id cannot be blank" if customer_id.to_s == ""
       response = Http.get("/customers/#{customer_id}")
       new(response[:customer])
     rescue NotFoundError
       raise NotFoundError, "customer with id #{customer_id.inspect} not found"