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// Copyright 2015 RedHat, Inc.
// 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 sdjournal
import (
"os"
"testing"
"time"
"github.com/coreos/go-systemd/journal"
)
func TestJournalFollow(t *testing.T) {
r, err := NewJournalReader(JournalReaderConfig{
Since: time.Duration(-15) * time.Second,
Matches: []Match{
{
Field: SD_JOURNAL_FIELD_SYSTEMD_UNIT,
Value: "NetworkManager.service",
},
},
})
if err != nil {
t.Fatalf("Error opening journal: %s", err)
}
if r == nil {
t.Fatal("Got a nil reader")
}
defer r.Close()
// start writing some test entries
done := make(chan struct{}, 1)
defer close(done)
go func() {
for {
select {
case <-done:
return
default:
if err = journal.Print(journal.PriInfo, "test message %s", time.Now()); err != nil {
t.Fatalf("Error writing to journal: %s", err)
}
time.Sleep(time.Second)
}
}
}()
// and follow the reader synchronously
timeout := time.Duration(5) * time.Second
if err = r.Follow(time.After(timeout), os.Stdout); err != ErrExpired {
t.Fatalf("Error during follow: %s", err)
}
}
func TestJournalGetUsage(t *testing.T) {
j, err := NewJournal()
if err != nil {
t.Fatalf("Error opening journal: %s", err)
}
if j == nil {
t.Fatal("Got a nil journal")
}
defer j.Close()
_, err = j.GetUsage()
if err != nil {
t.Fatalf("Error getting journal size: %s", err)
}
}
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