[MIRROR] Move autolathe design datums to techweb datums (#12565)

Co-authored-by: Will <7099514+Willburd@users.noreply.github.com>
Co-authored-by: Cameron Lennox <killer65311@gmail.com>

code/modules/unit_tests/material_tests.dm

@@ -14,3 +14,43 @@
 
 	if(length(failures))
 		TEST_FAIL("[length(failures)] material\s had missing name strings: [english_list(failures)].")
+
+/datum/unit_test/all_sheets_must_be_printable_from_autolathe
+
+/datum/unit_test/all_sheets_must_be_printable_from_autolathe/Run()
+	// Get the materials all the sheets can be broken down into
+	var/list/needed_materials = list()
+	for(var/path in subtypesof(/obj/item/stack))
+		var/obj/item/stack/material/sheet = new path()
+		var/list/get_mats = sheet.get_material_composition()
+		for(var/mat in get_mats)
+			needed_materials |= mat
+		qdel(sheet)
+
+	// Then get the sheets those materials are represented by
+	var/list/required_sheets = list()
+	for(var/datum/material/mat in needed_materials)
+		if(!mat || !mat.stack_type)
+			continue
+		required_sheets |= mat.stack_type
+
+	// Get all material sheet printing recipies in the autolathe
+	var/list/sheet_print_designs = list()
+	for(var/id in SSresearch.techweb_designs)
+		var/datum/design_techweb/design = SSresearch.techweb_designs[id]
+		if(!(design.build_type & AUTOLATHE))
+			continue
+		if(!(design.build_path in subtypesof(/obj/item/stack/material)))
+			continue
+		sheet_print_designs |= design.build_path
+
+	// Check all sheets for EXISTANCE
+	var/failed = FALSE
+	for(var/sheet in required_sheets)
+		if(sheet in sheet_print_designs)
+			continue
+		failed = TRUE
+		TEST_NOTICE(src, "[sheet] - Missing an autolathe design, all material sheets must be printable, or materials can get stuck in the lathe forever")
+
+	if(failed)
+		TEST_FAIL("materials missing autolathe print recipies.")