first try?

code/modules/unit_tests/outfit_sanity.dm

@@ -20,6 +20,7 @@
 
 /datum/unit_test/outfit_sanity/Run()
 	var/mob/living/carbon/human/H = allocate(/mob/living/carbon/human)
+	var/list created_items = list()
 
 	for (var/outfit_type in subtypesof(/datum/outfit))
 		// Only make one human and keep undressing it because it's much faster
@@ -58,5 +59,12 @@
 				for (var/_ in 1 to number)
 					if (!H.equip_to_slot_or_del(new path(H), ITEM_SLOT_BACKPACK, TRUE))
 						TEST_FAIL("[outfit.name]'s backpack_contents are invalid! Couldn't add [path] to backpack.")
+		// Check if the created outfit is of subtype /datum/outfit/generic
+		if (isoutfit(outfit, /datum/outfit/generic))
+			for (var/obj/item/I in H.get_equipped_items(include_pockets = TRUE))
+				list/append(created_items, I.path)
+		for (var/item in created_items)
+			world.log << "Created Item: [item.name] ([item.path])"
+
 
 #undef CHECK_OUTFIT_SLOT