AdGuardHome/internal/util/autohosts_test.go
Eugene Burkov c9d2436d77 Pull request: 2574 external tests vol.3
Merge in DNS/adguard-home from 2574-external-tests-3 to master

Updates #2574.

Squashed commit of the following:

commit 29d429c65dee2621ca503710a7ba9522f14f55f9
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Feb 4 20:06:57 2021 +0300

    all: finally fix spacing

commit 9e3a3be63b74852a7802e3f1832648444b58e4d0
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Feb 4 19:59:09 2021 +0300

    aghtest: polish spacing

commit 8a984159fe813b95b989803f5b8b78d01a41bd39
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Feb 4 18:44:47 2021 +0300

    all: fix linux tests, imp code quality

commit 0c1b42bacba1b23fa847e1fa032579c525b3eaa1
Author: Eugene Burkov <e.burkov@adguard.com>
Date:   Thu Feb 4 17:33:12 2021 +0300

    all: mv testutil to aghtest package, imp tests
2021-02-04 20:35:13 +03:00

125 lines
3.2 KiB
Go

package util
import (
"io/ioutil"
"net"
"os"
"strings"
"testing"
"time"
"github.com/AdguardTeam/AdGuardHome/internal/aghtest"
"github.com/miekg/dns"
"github.com/stretchr/testify/assert"
)
func TestMain(m *testing.M) {
aghtest.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.Len(t, ips, 1)
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.Len(t, ips, 1)
assert.True(t, net.IP{127, 0, 0, 2}.Equal(ips[0]))
}
func TestIP(t *testing.T) {
assert.True(t, net.IP{127, 0, 0, 1}.Equal(DNSUnreverseAddr("1.0.0.127.in-addr.arpa")))
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"))
}