test: added test case for disassembly order

erpnext/manufacturing/doctype/work_order/test_work_order.py

@@ -2364,6 +2364,105 @@ class TestWorkOrder(IntegrationTestCase):
 
 		stock_entry.submit()
 
+	def test_disassembly_order_with_qty_behavior(self):
+		# Create raw material and FG item
+		raw_item = make_item("Test Raw for Disassembly", {"is_stock_item": 1}).name
+		fg_item = make_item("Test FG for Disassembly", {"is_stock_item": 1}).name
+		bom = make_bom(item=fg_item, quantity=10, raw_materials=[raw_item], rm_qty=5)
+
+		# Create and submit a Work Order for 10 qty
+		wo = make_wo_order_test_record(production_item=fg_item, qty=10, bom_no=bom.name, status="Not Started")
+
+		# create material receipt stock entry for raw material
+		from erpnext.stock.doctype.stock_entry.test_stock_entry import (
+			make_stock_entry as make_stock_entry_test_record,
+		)
+
+		make_stock_entry_test_record(
+			item_code=raw_item,
+			purpose="Material Receipt",
+			target=wo.wip_warehouse,
+			qty=10,
+			basic_rate=100,
+		)
+		make_stock_entry_test_record(
+			item_code=raw_item,
+			purpose="Material Receipt",
+			target=wo.fg_warehouse,
+			qty=10,
+			basic_rate=100,
+		)
+
+		# create material transfer for manufacture stock entry
+		se_for_material_tranfer_mfr = frappe.get_doc(
+			make_stock_entry(wo.name, "Material Transfer for Manufacture", wo.qty)
+		)
+		se_for_material_tranfer_mfr.items[0].s_warehouse = wo.wip_warehouse
+		se_for_material_tranfer_mfr.save()
+		se_for_material_tranfer_mfr.submit()
+
+		se_for_manufacture = frappe.get_doc(make_stock_entry(wo.name, "Manufacture", wo.qty))
+		se_for_manufacture.submit()
+
+		# Simulate a disassembly stock entry
+		disassemble_qty = 4
+		stock_entry = frappe.get_doc(make_stock_entry(wo.name, "Disassemble", disassemble_qty))
+		stock_entry.append(
+			"items",
+			{
+				"item_code": fg_item,
+				"qty": disassemble_qty,
+				"s_warehouse": wo.fg_warehouse,
+			},
+		)
+
+		for bom_item in bom.items:
+			stock_entry.append(
+				"items",
+				{
+					"item_code": bom_item.item_code,
+					"qty": (bom_item.qty / bom.quantity) * disassemble_qty,
+					"t_warehouse": wo.source_warehouse,
+				},
+			)
+
+		wo.reload()
+		stock_entry.save()
+		stock_entry.submit()
+
+		# Assert FG item is present with correct qty
+		finished_good_entry = next((item for item in stock_entry.items if item.item_code == fg_item), None)
+		self.assertIsNotNone(finished_good_entry, "Finished good item missing from stock entry")
+		self.assertEqual(
+			finished_good_entry.qty,
+			disassemble_qty,
+			f"Expected FG qty {disassemble_qty}, found {finished_good_entry.qty}",
+		)
+
+		# Assert raw materials
+		for item in stock_entry.items:
+			if item.item_code == fg_item:
+				continue
+			bom_item = next((i for i in bom.items if i.item_code == item.item_code), None)
+			if bom_item:
+				expected_qty = (bom_item.qty / bom.quantity) * disassemble_qty
+				self.assertAlmostEqual(
+					item.qty,
+					expected_qty,
+					places=3,
+					msg=f"Raw item {item.item_code} qty mismatch: expected {expected_qty}, got {item.qty}",
+				)
+			else:
+				self.fail(f"Unexpected item {item.item_code} found in stock entry")
+
+		wo.reload()
+		# Assert disassembled_qty field updated in Work Order
+		self.assertEqual(
+			wo.disassembled_qty,
+			disassemble_qty,
+			f"Work Order disassembled_qty mismatch: expected {disassemble_qty}, got {wo.disassembled_qty}",
+		)
+
 	def test_components_alternate_item_for_bom_based_manufacture_entry(self):
 		frappe.db.set_single_value("Manufacturing Settings", "backflush_raw_materials_based_on", "BOM")
 		frappe.db.set_single_value("Manufacturing Settings", "validate_components_quantities_per_bom", 1)
@@ -3296,6 +3395,7 @@ def make_wo_order_test_record(**args):
 	wo_order.transfer_material_against = args.transfer_material_against or "Work Order"
 	wo_order.from_wip_warehouse = args.from_wip_warehouse or 0
 	wo_order.batch_size = args.batch_size or 0
+	wo_order.status = args.status or "Draft"
 
 	if args.source_warehouse:
 		wo_order.source_warehouse = args.source_warehouse