test: added test

erpnext/stock/tests/test_get_item_details.py

@@ -28,3 +28,66 @@ class TestGetItemDetail(IntegrationTestCase):
 		)
 		details = get_item_details(args)
 		self.assertEqual(details.get("price_list_rate"), 100)
+
+	# making this test in get_item_details test file as feat/fix is present in that method
+	def test_fetch_price_from_list_rate_on_doc_save(self):
+		# create item
+		item = frappe.get_doc(
+			{
+				"doctype": "Item",
+				"item_code": "Test Item with Batch",
+				"item_name": "Test Item with Batch",
+				"item_group": "All Item Groups",
+				"is_stock_item": 1,
+				"has_batch_no": 1,
+			}
+		).insert()
+
+		# create batch
+		frappe.get_doc(
+			{
+				"doctype": "Batch",
+				"batch_id": "BATCH01",
+				"item": item,
+			}
+		).insert()
+
+		# create item price
+		frappe.get_doc(
+			{
+				"doctype": "Item Price",
+				"price_list": "Standard Selling",
+				"item_code": item.item_code,
+				"price_list_rate": 50,
+				"batch_no": "BATCH01",
+			}
+		).insert()
+
+		# create purchase receipt to have some stock for delivery
+		from erpnext.stock.doctype.purchase_receipt.test_purchase_receipt import make_purchase_receipt
+
+		make_purchase_receipt(
+			item_code=item.item_code,
+			warehouse="_Test Warehouse - _TC",
+			qty=100,
+			rate=100,
+			batch_no="BATCH01",
+		)
+
+		# creating sales order just to create delivery note from it
+		from erpnext.selling.doctype.sales_order.test_sales_order import make_sales_order
+
+		so = make_sales_order(item_code=item.item_code, qty=2, rate=75)
+
+		from erpnext.selling.doctype.sales_order.sales_order import make_delivery_note
+
+		dn = make_delivery_note(so.name)
+
+		# Test 1 : On creation of DN, item's batch won't be fetched and rate will remaing the same as in SO
+		self.assertIsNone(dn.items[0].batch_no)
+		self.assertEqual(dn.items[0].rate, 75)
+
+		# Test 2 : On saving the DN, item's batch will be fetched and rate will be updated from Item Price
+		dn.save()
+		self.assertEqual(dn.items[0].batch_no, "BATCH01")
+		self.assertEqual(dn.items[0].rate, 50)