public void RegisteringTitle_AddsEditableTitle_ToDefinition()
        {
            registration.Title("The name of the page");

            var definition = registration.Finalize();

            var editable = definition.Editables.Single();

            Assert.That(editable, Is.InstanceOf <WithEditableTitleAttribute>());
            Assert.That(editable.Name, Is.EqualTo("Title"));
            Assert.That(editable.Title, Is.EqualTo("The name of the page"));
        }