117 lines
3.1 KiB
Go
117 lines
3.1 KiB
Go
// Copyright 2015 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package compactor
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import (
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"reflect"
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"testing"
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"time"
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pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
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"github.com/coreos/etcd/pkg/testutil"
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"github.com/jonboulle/clockwork"
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)
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func TestPeriodic(t *testing.T) {
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retentionHours := 2
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retentionDuration := time.Duration(retentionHours) * time.Hour
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fc := clockwork.NewFakeClock()
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rg := &fakeRevGetter{testutil.NewRecorderStream(), 0}
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compactable := &fakeCompactable{testutil.NewRecorderStream()}
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tb := &Periodic{
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clock: fc,
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period: retentionDuration,
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rg: rg,
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c: compactable,
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}
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tb.Run()
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defer tb.Stop()
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checkCompactInterval := retentionDuration / time.Duration(periodDivisor)
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n := periodDivisor
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// simulate 5 hours worth of intervals.
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for i := 0; i < n/retentionHours*5; i++ {
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rg.Wait(1)
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fc.Advance(checkCompactInterval)
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// compaction doesn't happen til 2 hours elapses.
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if i < n {
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continue
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}
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// after 2 hours, compaction happens at every checkCompactInterval.
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a, err := compactable.Wait(1)
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if err != nil {
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t.Fatal(err)
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}
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expectedRevision := int64(i + 1 - n)
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if !reflect.DeepEqual(a[0].Params[0], &pb.CompactionRequest{Revision: expectedRevision}) {
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t.Errorf("compact request = %v, want %v", a[0].Params[0], &pb.CompactionRequest{Revision: expectedRevision})
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}
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}
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// unblock the rev getter, so we can stop the compactor routine.
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_, err := rg.Wait(1)
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestPeriodicPause(t *testing.T) {
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fc := clockwork.NewFakeClock()
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compactable := &fakeCompactable{testutil.NewRecorderStream()}
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rg := &fakeRevGetter{testutil.NewRecorderStream(), 0}
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retentionDuration := time.Hour
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tb := &Periodic{
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clock: fc,
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period: retentionDuration,
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rg: rg,
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c: compactable,
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}
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tb.Run()
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tb.Pause()
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// tb will collect 3 hours of revisions but not compact since paused
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checkCompactInterval := retentionDuration / time.Duration(periodDivisor)
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n := periodDivisor
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for i := 0; i < 3*n; i++ {
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rg.Wait(1)
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fc.Advance(checkCompactInterval)
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}
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// tb ends up waiting for the clock
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select {
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case a := <-compactable.Chan():
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t.Fatalf("unexpected action %v", a)
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case <-time.After(10 * time.Millisecond):
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}
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// tb resumes to being blocked on the clock
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tb.Resume()
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// unblock clock, will kick off a compaction at hour 3:06
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rg.Wait(1)
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fc.Advance(checkCompactInterval)
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a, err := compactable.Wait(1)
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if err != nil {
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t.Fatal(err)
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}
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// compact the revision from hour 2:06
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wreq := &pb.CompactionRequest{Revision: int64(1 + 2*n + 1)}
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if !reflect.DeepEqual(a[0].Params[0], wreq) {
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t.Errorf("compact request = %v, want %v", a[0].Params[0], wreq.Revision)
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}
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}
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