test: advance payment status for Purchase Order

erpnext/buying/doctype/purchase_order/test_purchase_order.py

@@ -1123,6 +1123,33 @@ def test_po_billed_amount_against_return_entry(self):
 		po.reload()
 		self.assertEqual(po.per_billed, 100)
 
+	def test_purchase_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
+
+		po = create_purchase_order()
+		self.assertEqual(
+			frappe.db.get_value(po.doctype, po.name, "advance_payment_status"), "Not Initiated"
+		)
+
+		pr = make_payment_request(dt=po.doctype, dn=po.name, submit_doc=True, return_doc=True)
+		self.assertEqual(frappe.db.get_value(po.doctype, po.name, "advance_payment_status"), "Initiated")
+
+		pe = get_payment_entry(po.doctype, po.name).save().submit()
+		self.assertEqual(
+			frappe.db.get_value(po.doctype, po.name, "advance_payment_status"), "Fully Paid"
+		)
+
+		pe.reload()
+		pe.cancel()
+		self.assertEqual(frappe.db.get_value(po.doctype, po.name, "advance_payment_status"), "Initiated")
+
+		pr.reload()
+		pr.cancel()
+		self.assertEqual(
+			frappe.db.get_value(po.doctype, po.name, "advance_payment_status"), "Not Initiated"
+		)
+
 
 def prepare_data_for_internal_transfer():
 	from erpnext.accounts.doctype.sales_invoice.test_sales_invoice import create_internal_supplier