// Copyright 2025 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // This file contains tests for the hostport checker. package hostport import ( "fmt" "net" ) func _(host string, port int) { addr := fmt.Sprintf("%s:%d", host, port) // ERROR "address format .%s:%d. does not work with IPv6" net.Dial("tcp", addr) }