mirror of
https://github.com/featurebasedb/featurebase.git
synced 2026-08-28 10:54:59 +00:00
131 lines
3.2 KiB
Go
131 lines
3.2 KiB
Go
// Copyright 2017 Pilosa Corp.
|
|
//
|
|
// 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 pilosa
|
|
|
|
import (
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/molecula/featurebase/v2/testhook"
|
|
. "github.com/molecula/featurebase/v2/vprint" // nolint:staticcheck
|
|
"golang.org/x/sync/errgroup"
|
|
)
|
|
|
|
// mustOpenView returns a new instance of View with a temporary path.
|
|
func mustOpenView(tb testing.TB, index, field, name string) *view {
|
|
path, err := testhook.TempDirInDir(tb, *TempDir, "pilosa-view-")
|
|
if err != nil {
|
|
PanicOn(err)
|
|
}
|
|
|
|
fo := FieldOptions{
|
|
CacheType: DefaultCacheType,
|
|
CacheSize: DefaultCacheSize,
|
|
}
|
|
|
|
h := NewHolder(path, nil)
|
|
// h needs an *Index so we can call h.Index() and get Index.Txf, in TestView_DeleteFragment
|
|
|
|
cim := &CreateIndexMessage{
|
|
Index: index,
|
|
CreatedAt: 0,
|
|
Meta: IndexOptions{},
|
|
}
|
|
|
|
idx, err := h.createIndex(cim, false)
|
|
testhook.Cleanup(tb, func() {
|
|
h.Close()
|
|
})
|
|
PanicOn(err)
|
|
|
|
v := newView(h, path, index, field, name, fo)
|
|
v.idx = idx
|
|
if err := v.openEmpty(); err != nil {
|
|
PanicOn(err)
|
|
}
|
|
return v
|
|
}
|
|
|
|
// Ensure view can open and retrieve a fragment.
|
|
func TestView_DeleteFragment(t *testing.T) {
|
|
v := mustOpenView(t, "i", "f", "v")
|
|
defer v.close()
|
|
|
|
shard := uint64(9)
|
|
|
|
// Create fragment.
|
|
fragment, err := v.CreateFragmentIfNotExists(shard)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
} else if fragment == nil {
|
|
t.Fatal("expected fragment")
|
|
}
|
|
|
|
err = v.deleteFragment(shard)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if v.Fragment(shard) != nil {
|
|
t.Fatal("fragment still exists in view")
|
|
}
|
|
|
|
// Recreate fragment with same shard, verify that the old fragment was not reused.
|
|
fragment2, err := v.CreateFragmentIfNotExists(shard)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
} else if fragment == fragment2 {
|
|
t.Fatal("failed to create new fragment")
|
|
}
|
|
}
|
|
|
|
// Ensure that simultaneous attempts to grab a new fragment don't clash even
|
|
// if the broadcast operation takes a bit of time.
|
|
func TestView_CreateFragmentRace(t *testing.T) {
|
|
var creates errgroup.Group
|
|
v := mustOpenView(t, "i", "f", "v")
|
|
defer v.close()
|
|
|
|
// Use a broadcaster which intentionally fails.
|
|
v.broadcaster = delayBroadcaster{delay: 10 * time.Millisecond}
|
|
|
|
shard := uint64(0)
|
|
|
|
creates.Go(func() error {
|
|
_, err := v.CreateFragmentIfNotExists(shard)
|
|
return err
|
|
})
|
|
creates.Go(func() error {
|
|
_, err := v.CreateFragmentIfNotExists(shard)
|
|
return err
|
|
})
|
|
err := creates.Wait()
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v", err)
|
|
}
|
|
}
|
|
|
|
// delayBroadcaster is a nopBroadcaster with a configurable delay.
|
|
type delayBroadcaster struct {
|
|
nopBroadcaster
|
|
delay time.Duration
|
|
}
|
|
|
|
// SendSync is an implementation of Broadcaster SendSync which delays for a
|
|
// specified interval before succeeding.
|
|
func (d delayBroadcaster) SendSync(Message) error {
|
|
time.Sleep(d.delay)
|
|
return nil
|
|
}
|