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// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
package wgengine
import (
"runtime"
"testing"
"time"
"tailscale.com/health"
"tailscale.com/util/eventbus/eventbustest"
"tailscale.com/util/usermetric"
)
func TestWatchdog(t *testing.T) {
t.Parallel()
var maxWaitMultiple time.Duration = 1
if runtime.GOOS == "darwin" {
// Work around slow close syscalls on Big Sur with content filter Network Extensions installed.
// See https://github.com/tailscale/tailscale/issues/1598.
maxWaitMultiple = 15
}
t.Run("default watchdog does not fire", func(t *testing.T) {
t.Parallel()
bus := eventbustest.NewBus(t)
ht := health.NewTracker(bus)
reg := new(usermetric.Registry)
e, err := NewFakeUserspaceEngine(t.Logf, 0, ht, reg, bus)
if err != nil {
t.Fatal(err)
}
e = NewWatchdog(e)
e.(*watchdogEngine).maxWait = maxWaitMultiple * 150 * time.Millisecond
e.(*watchdogEngine).logf = t.Logf
e.(*watchdogEngine).fatalf = t.Fatalf
e.RequestStatus()
e.RequestStatus()
e.RequestStatus()
e.Close()
})
}
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