diff --git a/erpnext/selling/doctype/sales_order/test_sales_order.py b/erpnext/selling/doctype/sales_order/test_sales_order.py
index 0f32847..09fa853 100644
--- a/erpnext/selling/doctype/sales_order/test_sales_order.py
+++ b/erpnext/selling/doctype/sales_order/test_sales_order.py
@@ -2,6 +2,7 @@
 # License: GNU General Public License v3. See license.txt
 
 import json
+from unittest.mock import patch
 
 import frappe
 import frappe.permissions
@@ -1956,7 +1957,12 @@
 				self.assertEqual(so.items[0].rate, scenario.get("expected_rate"))
 				self.assertEqual(so.packed_items[0].rate, scenario.get("expected_rate"))
 
-	def test_sales_order_advance_payment_status(self):
+	@patch(
+		# this also shadows one (1) call to _get_payment_gateway_controller
+		"erpnext.accounts.doctype.payment_request.payment_request.PaymentRequest.get_payment_url",
+		return_value=None,
+	)
+	def test_sales_order_advance_payment_status(self, mocked_get_payment_url):
 		from erpnext.accounts.doctype.payment_entry.test_payment_entry import get_payment_entry
 		from erpnext.accounts.doctype.payment_request.payment_request import make_payment_request