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package dbus
import (
"testing"
"time"
)
// TestSubscribeUnit exercises the basics of subscription of a particular unit.
func TestSubscriptionSetUnit(t *testing.T) {
target := "subscribe-events-set.service"
conn, err := New()
if err != nil {
t.Fatal(err)
}
err = conn.Subscribe()
if err != nil {
t.Fatal(err)
}
subSet := conn.NewSubscriptionSet()
evChan, errChan := subSet.Subscribe()
subSet.Add(target)
setupUnit(target, conn, t)
job, err := conn.StartUnit(target, "replace")
if err != nil {
t.Fatal(err)
}
if job != "done" {
t.Fatal("Couldn't start", target)
}
timeout := make(chan bool, 1)
go func() {
time.Sleep(3 * time.Second)
close(timeout)
}()
for {
select {
case changes := <-evChan:
tCh, ok := changes[target]
if !ok {
t.Fatal("Unexpected event %v", changes)
}
if tCh.ActiveState == "active" && tCh.Name == target {
goto success
}
case err = <-errChan:
t.Fatal(err)
case <-timeout:
t.Fatal("Reached timeout")
}
}
success:
return
}
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