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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.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package net
import (
"os"
"reflect"
"testing"
)
var dnsReadConfigTests = []struct {
name string
want *dnsConfig
}{
{
name: "testdata/resolv.conf",
want: &dnsConfig{
servers: []string{"8.8.8.8", "2001:4860:4860::8888", "fe80::1%lo0"},
search: []string{"localdomain"},
ndots: 5,
timeout: 10,
attempts: 3,
rotate: true,
unknownOpt: true, // the "options attempts 3" line
},
},
{
name: "testdata/domain-resolv.conf",
want: &dnsConfig{
servers: []string{"8.8.8.8"},
search: []string{"localdomain"},
ndots: 1,
timeout: 5,
attempts: 2,
},
},
{
name: "testdata/search-resolv.conf",
want: &dnsConfig{
servers: []string{"8.8.8.8"},
search: []string{"test", "invalid"},
ndots: 1,
timeout: 5,
attempts: 2,
},
},
{
name: "testdata/empty-resolv.conf",
want: &dnsConfig{
servers: defaultNS,
ndots: 1,
timeout: 5,
attempts: 2,
},
},
{
name: "testdata/openbsd-resolv.conf",
want: &dnsConfig{
ndots: 1,
timeout: 5,
attempts: 2,
lookup: []string{"file", "bind"},
servers: []string{"169.254.169.254", "10.240.0.1"},
search: []string{"c.symbolic-datum-552.internal."},
},
},
}
func TestDNSReadConfig(t *testing.T) {
for _, tt := range dnsReadConfigTests {
conf := dnsReadConfig(tt.name)
if conf.err != nil {
t.Fatal(conf.err)
}
if !reflect.DeepEqual(conf, tt.want) {
t.Errorf("%s:\ngot: %+v\nwant: %+v", tt.name, conf, tt.want)
}
}
}
func TestDNSReadMissingFile(t *testing.T) {
conf := dnsReadConfig("a-nonexistent-file")
if !os.IsNotExist(conf.err) {
t.Errorf("missing resolv.conf:\ngot: %v\nwant: %v", conf.err, os.ErrNotExist)
}
conf.err = nil
want := &dnsConfig{
servers: defaultNS,
ndots: 1,
timeout: 5,
attempts: 2,
}
if !reflect.DeepEqual(conf, want) {
t.Errorf("missing resolv.conf:\ngot: %+v\nwant: %+v", conf, want)
}
}
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