test: fix failing test case in AR report

erpnext/accounts/report/accounts_receivable/test_accounts_receivable.py

@@ -184,11 +184,9 @@ def test_exchange_revaluation_for_party(self):
 		err = err.save().submit()
 
 		# Submit JV for ERR
-		jv = frappe.get_doc(err.make_jv_entry())
-		jv = jv.save()
-		for x in jv.accounts:
-			x.cost_center = get_default_cost_center(jv.company)
-		jv.submit()
+		err_journals = err.make_jv_entries()
+		je = frappe.get_doc("Journal Entry", err_journals.get("revaluation_jv"))
+		je = je.submit()
 
 		filters = {
 			"company": company,
@@ -201,7 +199,7 @@ def test_exchange_revaluation_for_party(self):
 		report = execute(filters)
 
 		expected_data_for_err = [0, -5, 0, 5]
-		row = [x for x in report[1] if x.voucher_type == jv.doctype and x.voucher_no == jv.name][0]
+		row = [x for x in report[1] if x.voucher_type == je.doctype and x.voucher_no == je.name][0]
 		self.assertEqual(
 			expected_data_for_err,
 			[