Moves hair and eyes into standing overlays (#95781)

code/modules/unit_tests/_unit_tests.dm

@@ -287,6 +287,7 @@
 #include "screenshot_airlocks.dm"
 #include "screenshot_antag_icons.dm"
 #include "screenshot_basic.dm"
+#include "screenshot_debrain.dm"
 #include "screenshot_digi.dm"
 #include "screenshot_dynamic_human_icons.dm"
 #include "screenshot_high_luminosity_eyes.dm"

code/modules/unit_tests/screenshot_debrain.dm

@@ -0,0 +1,32 @@
+/// Tests debrained overlay. And also eyeless since we're here
+/datum/unit_test/screenshot_debrain
+	var/last_frame = 1
+
+/datum/unit_test/screenshot_debrain/Run()
+	var/mob/living/carbon/human/human = allocate(/mob/living/carbon/human/dummy/consistent)
+	var/obj/item/organ/brain/their_brain = human.get_organ_by_type(__IMPLIED_TYPE__)
+	var/obj/item/organ/eyes/their_eyes = human.get_organ_by_type(__IMPLIED_TYPE__)
+	human.set_hairstyle(/datum/sprite_accessory/hair/bedheadv4::name)
+	human.set_facial_hairstyle(/datum/sprite_accessory/facial_hair/vlongbeard::name)
+	human.set_haircolor(COLOR_BLACK)
+	human.set_facial_haircolor(COLOR_BLACK)
+
+	var/icon/final_icon = icon('icons/effects/effects.dmi', "nothing")
+	// record pre-test appearance
+	final_icon.Insert(getFlatIcon(human, no_anim = TRUE), dir = SOUTH, frame = 1)
+
+	// remove brain, record appearance
+	their_brain.Remove(human)
+	final_icon.Insert(getFlatIcon(human, no_anim = TRUE), dir = NORTH, frame = 1)
+
+	// remove eyes, record appearance
+	their_eyes.Remove(human)
+	final_icon.Insert(getFlatIcon(human, no_anim = TRUE), dir = EAST, frame = 1)
+
+	// re-add organs, record appearance
+	their_brain.Insert(human)
+	their_eyes.Insert(human)
+	final_icon.Insert(getFlatIcon(human, no_anim = TRUE), dir = WEST, frame = 1)
+
+	// test the final screenshot
+	test_screenshot("head_organs", final_icon)