AdGuardHome/internal/util/autohosts_test.go
Ainar Garipov 73c30590e0 Pull request: all: fix lint and naming issues vol. 4
Merge in DNS/adguard-home from 2276-fix-lint-4 to master

Updates #2276.

Squashed commit of the following:

commit 15d49184cd8ce1f8701bf3221e69418ca1778b36
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Dec 8 15:51:34 2020 +0300

    util: fix naming

commit 3b9a86a0feb8c6e0b167e6e23105e8137b0dda76
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Tue Dec 8 15:41:10 2020 +0300

    all: fix lint and naming issues vol. 4
2020-12-08 16:01:13 +03:00

124 lines
3.2 KiB
Go

package util
import (
"io/ioutil"
"net"
"os"
"strings"
"testing"
"time"
"github.com/AdguardTeam/AdGuardHome/internal/testutil"
"github.com/miekg/dns"
"github.com/stretchr/testify/assert"
)
func TestMain(m *testing.M) {
testutil.DiscardLogOutput(m)
}
func prepareTestDir() string {
const dir = "./agh-test"
_ = os.RemoveAll(dir)
_ = os.MkdirAll(dir, 0o755)
return dir
}
func TestAutoHostsResolution(t *testing.T) {
ah := AutoHosts{}
dir := prepareTestDir()
defer func() { _ = os.RemoveAll(dir) }()
f, _ := ioutil.TempFile(dir, "")
defer func() { _ = os.Remove(f.Name()) }()
defer f.Close()
_, _ = f.WriteString(" 127.0.0.1 host localhost # comment \n")
_, _ = f.WriteString(" ::1 localhost#comment \n")
ah.Init(f.Name())
// Existing host
ips := ah.Process("localhost", dns.TypeA)
assert.NotNil(t, ips)
assert.Equal(t, 1, len(ips))
assert.Equal(t, net.ParseIP("127.0.0.1"), ips[0])
// Unknown host
ips = ah.Process("newhost", dns.TypeA)
assert.Nil(t, ips)
// Unknown host (comment)
ips = ah.Process("comment", dns.TypeA)
assert.Nil(t, ips)
// Test hosts file
table := ah.List()
names, ok := table["127.0.0.1"]
assert.True(t, ok)
assert.Equal(t, []string{"host", "localhost"}, names)
// Test PTR
a, _ := dns.ReverseAddr("127.0.0.1")
a = strings.TrimSuffix(a, ".")
hosts := ah.ProcessReverse(a, dns.TypePTR)
if assert.Len(t, hosts, 2) {
assert.Equal(t, hosts[0], "host")
}
a, _ = dns.ReverseAddr("::1")
a = strings.TrimSuffix(a, ".")
hosts = ah.ProcessReverse(a, dns.TypePTR)
if assert.Len(t, hosts, 1) {
assert.Equal(t, hosts[0], "localhost")
}
}
func TestAutoHostsFSNotify(t *testing.T) {
ah := AutoHosts{}
dir := prepareTestDir()
defer func() { _ = os.RemoveAll(dir) }()
f, _ := ioutil.TempFile(dir, "")
defer func() { _ = os.Remove(f.Name()) }()
defer f.Close()
// Init
_, _ = f.WriteString(" 127.0.0.1 host localhost \n")
ah.Init(f.Name())
// Unknown host
ips := ah.Process("newhost", dns.TypeA)
assert.Nil(t, ips)
// Stat monitoring for changes
ah.Start()
defer ah.Close()
// Update file
_, _ = f.WriteString("127.0.0.2 newhost\n")
_ = f.Sync()
// wait until fsnotify has triggerred and processed the file-modification event
time.Sleep(50 * time.Millisecond)
// Check if we are notified about changes
ips = ah.Process("newhost", dns.TypeA)
assert.NotNil(t, ips)
assert.Equal(t, 1, len(ips))
assert.Equal(t, "127.0.0.2", ips[0].String())
}
func TestIP(t *testing.T) {
assert.Equal(t, "127.0.0.1", DNSUnreverseAddr("1.0.0.127.in-addr.arpa").String())
assert.Equal(t, "::abcd:1234", DNSUnreverseAddr("4.3.2.1.d.c.b.a.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa").String())
assert.Equal(t, "::abcd:1234", DNSUnreverseAddr("4.3.2.1.d.c.B.A.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa").String())
assert.Nil(t, DNSUnreverseAddr("1.0.0.127.in-addr.arpa."))
assert.Nil(t, DNSUnreverseAddr(".0.0.127.in-addr.arpa"))
assert.Nil(t, DNSUnreverseAddr(".3.2.1.d.c.b.a.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa"))
assert.Nil(t, DNSUnreverseAddr("4.3.2.1.d.c.b.a.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0..ip6.arpa"))
assert.Nil(t, DNSUnreverseAddr("4.3.2.1.d.c.b. .0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa"))
}