AdGuardHome/util/auto_hosts_test.go
2020-04-15 14:36:47 +03:00

90 lines
1.8 KiB
Go

package util
import (
"io/ioutil"
"net"
"os"
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func prepareTestDir() string {
const dir = "./agh-test"
_ = os.RemoveAll(dir)
_ = os.MkdirAll(dir, 0755)
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 \n")
ah.Init(f.Name())
// Update from the hosts file
ah.updateHosts()
// Existing host
ips := ah.Process("localhost")
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")
assert.Nil(t, ips)
// Test hosts file
table := ah.List()
ips, _ = table["host"]
assert.NotNil(t, ips)
assert.Equal(t, 1, len(ips))
assert.Equal(t, "127.0.0.1", ips[0].String())
}
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())
ah.updateHosts()
// Unknown host
ips := ah.Process("newhost")
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")
assert.NotNil(t, ips)
assert.Equal(t, 1, len(ips))
assert.Equal(t, "127.0.0.2", ips[0].String())
}