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// Copyright 2009 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 (
"sort"
"testing"
)
type hostTest struct {
host string
ips []IP
}
var hosttests = []hostTest{
{"odin", []IP{
IPv4(127, 0, 0, 2),
IPv4(127, 0, 0, 3),
ParseIP("::2"),
}},
{"thor", []IP{
IPv4(127, 1, 1, 1),
}},
{"loki", []IP{}},
{"ullr", []IP{
IPv4(127, 1, 1, 2),
}},
{"ullrhost", []IP{
IPv4(127, 1, 1, 2),
}},
}
func TestLookupStaticHost(t *testing.T) {
p := hostsPath
hostsPath = "testdata/hosts"
for i := 0; i < len(hosttests); i++ {
tt := hosttests[i]
ips := lookupStaticHost(tt.host)
if len(ips) != len(tt.ips) {
t.Errorf("# of hosts = %v; want %v",
len(ips), len(tt.ips))
return
}
for k, v := range ips {
if tt.ips[k].String() != v {
t.Errorf("lookupStaticHost(%q) = %v; want %v",
tt.host, v, tt.ips[k])
}
}
}
hostsPath = p
}
// https://code.google.com/p/go/issues/detail?id=6646
func TestSingleLineHostsFile(t *testing.T) {
p := hostsPath
hostsPath = "testdata/hosts_singleline"
ips := lookupStaticHost("odin")
if len(ips) != 1 || ips[0] != "127.0.0.2" {
t.Errorf("lookupStaticHost = %v, want %v", ips, []string{"127.0.0.2"})
}
hostsPath = p
}
func TestLookupHost(t *testing.T) {
// Can't depend on this to return anything in particular,
// but if it does return something, make sure it doesn't
// duplicate addresses (a common bug due to the way
// getaddrinfo works).
addrs, _ := LookupHost("localhost")
sort.Strings(addrs)
for i := 0; i+1 < len(addrs); i++ {
if addrs[i] == addrs[i+1] {
t.Fatalf("LookupHost(\"localhost\") = %v, has duplicate addresses", addrs)
}
}
}
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