1// Copyright 2020 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package net
6
7import "testing"
8
9func TestTCP4ListenZero(t *testing.T) {
10	l, err := Listen("tcp4", "0.0.0.0:0")
11	if err != nil {
12		t.Fatal(err)
13	}
14	defer l.Close()
15	if a := l.Addr(); isNotIPv4(a) {
16		t.Errorf("address does not contain IPv4: %v", a)
17	}
18}
19
20func TestUDP4ListenZero(t *testing.T) {
21	c, err := ListenPacket("udp4", "0.0.0.0:0")
22	if err != nil {
23		t.Fatal(err)
24	}
25	defer c.Close()
26	if a := c.LocalAddr(); isNotIPv4(a) {
27		t.Errorf("address does not contain IPv4: %v", a)
28	}
29}
30