/// Ensure every quirk has a unique icon
/datum/unit_test/quirk_icons

/datum/unit_test/quirk_icons/Run()
	var/list/used_icons = list()

	for (var/datum/quirk/quirk_type as anything in subtypesof(/datum/quirk))
		if (initial(quirk_type.abstract_parent_type) == quirk_type)
			continue

		var/icon = initial(quirk_type.icon)

		if (isnull(icon))
			Fail("[quirk_type] has no icon!")
			continue

		if (icon in used_icons)
			Fail("[icon] used in both [quirk_type] and [used_icons[icon]]!")
			continue

		used_icons[icon] = quirk_type