code/modules/unit_tests/verify_emoji_names.dm

/datum/unit_test/verify_emoji_names	Apparently, spritesheets (or maybe how the CSS backend works) do not respond well to icon_state names that are just pure numbers (which was a behavior in emoji.dmi). In case we add more emoji, let's just make sure that we don't have any pure numbers in the emoji.dmi file if we ever add more.