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clair/vendor/github.com/coreos/go-systemd/dbus/subscription_test.go

106 lines
1.9 KiB

// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package dbus
import (
"testing"
"time"
)
// TestSubscribe exercises the basics of subscription
func TestSubscribe(t *testing.T) {
conn, err := New()
if err != nil {
t.Fatal(err)
}
err = conn.Subscribe()
if err != nil {
t.Fatal(err)
}
err = conn.Unsubscribe()
if err != nil {
t.Fatal(err)
}
}
// TestSubscribeUnit exercises the basics of subscription of a particular unit.
func TestSubscribeUnit(t *testing.T) {
target := "subscribe-events.service"
conn, err := New()
if err != nil {
t.Fatal(err)
}
err = conn.Subscribe()
if err != nil {
t.Fatal(err)
}
err = conn.Unsubscribe()
if err != nil {
t.Fatal(err)
}
evChan, errChan := conn.SubscribeUnits(time.Second)
setupUnit(target, conn, t)
linkUnit(target, conn, t)
reschan := make(chan string)
_, err = conn.StartUnit(target, "replace", reschan)
if err != nil {
t.Fatal(err)
}
job := <-reschan
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]
// Just continue until we see our event.
if !ok {
continue
}
if tCh.ActiveState == "active" && tCh.Name == target {
goto success
}
case err = <-errChan:
t.Fatal(err)
case <-timeout:
t.Fatal("Reached timeout")
}
}
success:
return
}