test: add unit test for canceling the common party advance jv created from sales invoice

erpnext/accounts/doctype/sales_invoice/test_sales_invoice.py

@@ -3175,6 +3175,50 @@ class TestSalesInvoice(FrappeTestCase):
 		party_link.delete()
 		frappe.db.set_single_value("Accounts Settings", "enable_common_party_accounting", 0)
 
+	def test_sales_invoice_cancel_with_common_party_advance_jv(self):
+		from erpnext.accounts.doctype.opening_invoice_creation_tool.test_opening_invoice_creation_tool import (
+			make_customer,
+		)
+		from erpnext.accounts.doctype.party_link.party_link import create_party_link
+		from erpnext.buying.doctype.supplier.test_supplier import create_supplier
+
+		# create a customer
+		customer = make_customer(customer="_Test Common Supplier")
+		# create a supplier
+		supplier = create_supplier(supplier_name="_Test Common Supplier").name
+
+		# create a party link between customer & supplier
+		party_link = create_party_link("Supplier", supplier, customer)
+
+		# enable common party accounting
+		frappe.db.set_single_value("Accounts Settings", "enable_common_party_accounting", 1)
+
+		# create a sales invoice
+		si = create_sales_invoice(customer=customer)
+
+		# check creation of journal entry
+		jv = frappe.db.get_value(
+			"Journal Entry Account",
+			filters={
+				"reference_type": si.doctype,
+				"reference_name": si.name,
+				"docstatus": 1,
+			},
+			fieldname="parent",
+		)
+
+		self.assertTrue(jv)
+
+		# cancel sales invoice
+		si.cancel()
+
+		# check cancellation of journal entry
+		jv_status = frappe.db.get_value("Journal Entry", jv, "docstatus")
+		self.assertEqual(jv_status, 2)
+
+		party_link.delete()
+		frappe.db.set_single_value("Accounts Settings", "enable_common_party_accounting", 0)
+
 	def test_payment_statuses(self):
 		from erpnext.accounts.doctype.payment_entry.test_payment_entry import get_payment_entry