test: advance payment status for Sales Order

erpnext/selling/doctype/sales_order/test_sales_order.py

@@ -2112,6 +2112,33 @@ def test_credit_limit_on_so_reopning(self):
 
 		self.assertRaises(frappe.ValidationError, so1.update_status, "Draft")
 
+	def test_sales_order_advance_payment_status(self):
+		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
+
+		so = make_sales_order(qty=1, rate=100)
+		self.assertEqual(
+			frappe.db.get_value(so.doctype, so.name, "advance_payment_status"), "Not Requested"
+		)
+
+		pr = make_payment_request(dt=so.doctype, dn=so.name, submit_doc=True, return_doc=True)
+		self.assertEqual(frappe.db.get_value(so.doctype, so.name, "advance_payment_status"), "Requested")
+
+		pe = get_payment_entry(so.doctype, so.name).save().submit()
+		self.assertEqual(
+			frappe.db.get_value(so.doctype, so.name, "advance_payment_status"), "Fully Paid"
+		)
+
+		pe.reload()
+		pe.cancel()
+		self.assertEqual(frappe.db.get_value(so.doctype, so.name, "advance_payment_status"), "Requested")
+
+		pr.reload()
+		pr.cancel()
+		self.assertEqual(
+			frappe.db.get_value(so.doctype, so.name, "advance_payment_status"), "Not Requested"
+		)
+
 
 def automatically_fetch_payment_terms(enable=1):
 	accounts_settings = frappe.get_doc("Accounts Settings")