test: add test for partial dn against reserved stock

erpnext/stock/doctype/delivery_note/test_delivery_note.py

@@ -39,7 +39,7 @@ from erpnext.stock.doctype.stock_reconciliation.test_stock_reconciliation import
 	create_stock_reconciliation,
 	set_valuation_method,
 )
-from erpnext.stock.doctype.warehouse.test_warehouse import get_warehouse
+from erpnext.stock.doctype.warehouse.test_warehouse import create_warehouse, get_warehouse
 from erpnext.stock.stock_ledger import get_previous_sle
 
 
@@ -2719,6 +2719,75 @@ class TestDeliveryNote(FrappeTestCase):
 						serial_batch_map[row.item_code].batch_no_valuation[entry.batch_no],
 					)
 
+	@change_settings("Stock Settings", {"allow_negative_stock": 0, "enable_stock_reservation": 1})
+	def test_partial_delivery_note_against_reserved_stock(self):
+		from erpnext.stock.doctype.stock_reservation_entry.stock_reservation_entry import (
+			get_stock_reservation_entries_for_voucher,
+		)
+
+		# create batch item
+		batch_item = make_item(
+			"_Test Batch Item For DN Reserve Check",
+			{
+				"is_stock_item": 1,
+				"has_batch_no": 1,
+				"create_new_batch": 1,
+				"batch_number_series": "TBDNR.#####",
+			},
+		)
+		serial_item = make_item(
+			"_Test Serial Item For DN Reserve Check",
+			{
+				"is_stock_item": 1,
+				"has_serial_no": 1,
+				"serial_no_series": "TSNDNR.#####",
+			},
+		)
+
+		company = "_Test Company"
+
+		warehouse = create_warehouse("Test Partial DN Reserved Stock", company=company)
+		customer = "_Test Customer"
+
+		items = [batch_item.name, serial_item.name]
+
+		for idx, item in enumerate(items):
+			# make inward entry for batch item
+			se = make_stock_entry(item_code=item, purpose="Material Receipt", qty=10, to_warehouse=warehouse)
+			sabb = se.items[0].serial_and_batch_bundle
+
+			batch_no = get_batch_from_bundle(sabb) if not idx else None
+			serial_nos = get_serial_nos_from_bundle(sabb) if idx else None
+
+			# make sales order and reserve the quantites against the so
+			so = make_sales_order(item_code=item, qty=10, rate=100, customer=customer, warehouse=warehouse)
+			so.submit()
+			so.create_stock_reservation_entries()
+			so.reload()
+
+			# create a delivery note with partial quantity from resreved quantity
+			dn = create_dn_against_so(so=so.name, delivered_qty=5, do_not_submit=True)
+			dn.items[0].use_serial_batch_fields = 1
+			if batch_no:
+				dn.items[0].batch_no = batch_no
+			else:
+				dn.items[0].serial_no = "\n".join(serial_nos[:5])
+
+			dn.save()
+			dn.submit()
+
+			against_sales_order = dn.items[0].against_sales_order
+			so_detail = dn.items[0].so_detail
+
+			sre_details = get_stock_reservation_entries_for_voucher(
+				so.doctype, against_sales_order, so_detail, ["reserved_qty", "delivered_qty", "status"]
+			)
+
+			# check partially delivered reserved stock
+			self.assertEqual(sre_details[0].status, "Partially Delivered")
+			self.assertEqual(sre_details[0].reserved_qty, so.items[0].qty)
+			self.assertEqual(sre_details[0].delivered_qty, dn.items[0].qty)
+
 
 def create_delivery_note(**args):
 	dn = frappe.new_doc("Delivery Note")