mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-29 21:15:39 +00:00
ffa70a617d
The Engine.LinkChange method was recently removed in
e3df29d488 while misremembering how
Android's link state mechanism worked.
Rather than do some last minute rearchitecting of link state on
Android before Tailscale 1.6, restore the old Engine.LinkChange hook
for now so the Android client doesn't need any changes. But change how
it's implemented to instead inject an event into the link monitor.
Fixes #1427
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
90 lines
1.7 KiB
Go
90 lines
1.7 KiB
Go
// Copyright (c) 2021 Tailscale Inc & 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 monitor
|
|
|
|
import (
|
|
"flag"
|
|
"testing"
|
|
"time"
|
|
|
|
"tailscale.com/net/interfaces"
|
|
)
|
|
|
|
func TestMonitorStartClose(t *testing.T) {
|
|
mon, err := New(t.Logf)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
mon.Start()
|
|
if err := mon.Close(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
func TestMonitorJustClose(t *testing.T) {
|
|
mon, err := New(t.Logf)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := mon.Close(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
func TestMonitorInjectEvent(t *testing.T) {
|
|
mon, err := New(t.Logf)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mon.Close()
|
|
got := make(chan bool, 1)
|
|
mon.RegisterChangeCallback(func(changed bool, state *interfaces.State) {
|
|
select {
|
|
case got <- true:
|
|
default:
|
|
}
|
|
})
|
|
mon.Start()
|
|
mon.InjectEvent()
|
|
select {
|
|
case <-got:
|
|
// Pass.
|
|
case <-time.After(5 * time.Second):
|
|
t.Fatal("timeout waiting for callback")
|
|
}
|
|
}
|
|
|
|
var monitor = flag.String("monitor", "", `go into monitor mode like 'route monitor'; test never terminates. Value can be either "raw" or "callback"`)
|
|
|
|
func TestMonitorMode(t *testing.T) {
|
|
switch *monitor {
|
|
case "":
|
|
t.Skip("skipping non-test without --monitor")
|
|
case "raw", "callback":
|
|
default:
|
|
t.Skipf(`invalid --monitor value: must be "raw" or "callback"`)
|
|
}
|
|
mon, err := New(t.Logf)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
switch *monitor {
|
|
case "raw":
|
|
for {
|
|
msg, err := mon.om.Receive()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
t.Logf("msg: %#v", msg)
|
|
}
|
|
case "callback":
|
|
mon.RegisterChangeCallback(func(changed bool, st *interfaces.State) {
|
|
t.Logf("cb: changed=%v, ifSt=%v", changed, st)
|
|
})
|
|
mon.Start()
|
|
select {}
|
|
}
|
|
}
|