func packetConnTestData(t *testing.T, network string) ([]byte, func()) {
	if !testableNetwork(network) {
		return nil, func() { t.Logf("skipping %s test", network) }
	}
	return []byte("PACKETCONN TEST"), nil
}

func TestPacketConn(t *testing.T) {
	var packetConnTests = []struct {
		net   string
		addr1 string
		addr2 string
	}{
		{"udp", "127.0.0.1:0", "127.0.0.1:0"},
		{"unixgram", testUnixAddr(t), testUnixAddr(t)},
	}