public void EditableAndDisplayable_SharingTheSameTurf()
        {
            registration.FreeText("Hello");
            registration.Add(new DisplayableTokensAttribute {
                Name = "Hello"
            });

            var definition = registration.Finalize();

            var editable    = definition.Editables.Single(d => d.Name == "Hello");
            var displayable = definition.Displayables.Single(d => d.Name == "Hello");

            Assert.That(editable, Is.InstanceOf <EditableFreeTextAreaAttribute>());
            Assert.That(editable.Name, Is.EqualTo("Hello"));
            Assert.That(displayable, Is.InstanceOf <DisplayableTokensAttribute>());
            Assert.That(displayable.Name, Is.EqualTo("Hello"));
        }