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// Copyright 2013 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.
package net
import (
"reflect"
"testing"
)
var testInetaddr = func(ip IP) netaddr { return &TCPAddr{IP: ip, Port: 5682} }
var firstFavoriteAddrTests = []struct {
filter func(IP) IP
ips []IP
inetaddr func(IP) netaddr
addr netaddr
err error
}{
{
nil,
[]IP{
IPv4(127, 0, 0, 1),
IPv6loopback,
},
testInetaddr,
addrList{
&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
&TCPAddr{IP: IPv6loopback, Port: 5682},
},
nil,
},
{
nil,
[]IP{
IPv6loopback,
IPv4(127, 0, 0, 1),
},
testInetaddr,
addrList{
&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
&TCPAddr{IP: IPv6loopback, Port: 5682},
},
nil,
},
{
nil,
[]IP{
IPv4(127, 0, 0, 1),
IPv4(192, 168, 0, 1),
},
testInetaddr,
&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
nil,
},
{
nil,
[]IP{
IPv6loopback,
ParseIP("fe80::1"),
},
testInetaddr,
&TCPAddr{IP: IPv6loopback, Port: 5682},
nil,
},
{
nil,
[]IP{
IPv4(127, 0, 0, 1),
IPv4(192, 168, 0, 1),
IPv6loopback,
ParseIP("fe80::1"),
},
testInetaddr,
addrList{
&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
&TCPAddr{IP: IPv6loopback, Port: 5682},
},
nil,
},
{
nil,
[]IP{
IPv6loopback,
ParseIP("fe80::1"),
IPv4(127, 0, 0, 1),
IPv4(192, 168, 0, 1),
},
testInetaddr,
addrList{
&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
&TCPAddr{IP: IPv6loopback, Port: 5682},
},
nil,
},
{
nil,
[]IP{
IPv4(127, 0, 0, 1),
IPv6loopback,
IPv4(192, 168, 0, 1),
ParseIP("fe80::1"),
},
testInetaddr,
addrList{
&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
&TCPAddr{IP: IPv6loopback, Port: 5682},
},
nil,
},
{
nil,
[]IP{
IPv6loopback,
IPv4(127, 0, 0, 1),
ParseIP("fe80::1"),
IPv4(192, 168, 0, 1),
},
testInetaddr,
addrList{
&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
&TCPAddr{IP: IPv6loopback, Port: 5682},
},
nil,
},
{
ipv4only,
[]IP{
IPv4(127, 0, 0, 1),
IPv6loopback,
},
testInetaddr,
&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
nil,
},
{
ipv4only,
[]IP{
IPv6loopback,
IPv4(127, 0, 0, 1),
},
testInetaddr,
&TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 5682},
nil,
},
{
ipv6only,
[]IP{
IPv4(127, 0, 0, 1),
IPv6loopback,
},
testInetaddr,
&TCPAddr{IP: IPv6loopback, Port: 5682},
nil,
},
{
ipv6only,
[]IP{
IPv6loopback,
IPv4(127, 0, 0, 1),
},
testInetaddr,
&TCPAddr{IP: IPv6loopback, Port: 5682},
nil,
},
{nil, nil, testInetaddr, nil, errNoSuitableAddress},
{ipv4only, nil, testInetaddr, nil, errNoSuitableAddress},
{ipv4only, []IP{IPv6loopback}, testInetaddr, nil, errNoSuitableAddress},
{ipv6only, nil, testInetaddr, nil, errNoSuitableAddress},
{ipv6only, []IP{IPv4(127, 0, 0, 1)}, testInetaddr, nil, errNoSuitableAddress},
}
func TestFirstFavoriteAddr(t *testing.T) {
if !supportsIPv4 || !supportsIPv6 {
t.Skip("ipv4 or ipv6 is not supported")
}
for i, tt := range firstFavoriteAddrTests {
addr, err := firstFavoriteAddr(tt.filter, tt.ips, tt.inetaddr)
if err != tt.err {
t.Errorf("#%v: got %v; expected %v", i, err, tt.err)
}
if !reflect.DeepEqual(addr, tt.addr) {
t.Errorf("#%v: got %v; expected %v", i, addr, tt.addr)
}
}
}