Add failing test for issue #259

test/shared.rb

@@ -51,6 +51,18 @@ module Slugged
           end
         end
 
+        test "when validations block save, to_param should return friendly_id rather than nil" do
+          my_model_class = Class.new(model_class)
+          self.class.const_set("Foo", my_model_class)
+          with_instance_of my_model_class do |record|
+            record.update_attribute(my_model_class.friendly_id_config.slug_column, nil)
+            record = my_model_class.find(record.id)
+            record.class.validate Proc.new {errors[:name] = "FAIL"}
+            record.save
+            assert_equal record.to_param, record.friendly_id
+          end
+        end
+
       end
 
       module Core