agola/internal/wal/wal_test.go

305 lines
7.1 KiB
Go

// Copyright 2019 Sorint.lab
//
// 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 wal
import (
"context"
"fmt"
"io/ioutil"
"os"
"testing"
"time"
slog "github.com/sorintlab/agola/internal/log"
"github.com/sorintlab/agola/internal/objectstorage"
"github.com/sorintlab/agola/internal/testutil"
"github.com/google/go-cmp/cmp"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
var level = zap.NewAtomicLevelAt(zapcore.InfoLevel)
var logger = slog.New(level)
var log = logger.Sugar()
func setupEtcd(t *testing.T, dir string) *testutil.TestEmbeddedEtcd {
tetcd, err := testutil.NewTestEmbeddedEtcd(t, logger, dir)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
if err := tetcd.Start(); err != nil {
t.Fatalf("unexpected err: %v", err)
}
if err := tetcd.WaitUp(30 * time.Second); err != nil {
t.Fatalf("error waiting on store up: %v", err)
}
return tetcd
}
func shutdownEtcd(tetcd *testutil.TestEmbeddedEtcd) {
if tetcd.Etcd != nil {
tetcd.Kill()
}
}
type noopCheckpointer struct {
}
func (c *noopCheckpointer) Checkpoint(ctx context.Context, action *Action) error {
return nil
}
func TestEtcdReset(t *testing.T) {
dir, err := ioutil.TempDir("", "agola")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
defer os.RemoveAll(dir)
etcdDir, err := ioutil.TempDir(dir, "etcd")
tetcd := setupEtcd(t, etcdDir)
defer shutdownEtcd(tetcd)
ctx, cancel := context.WithCancel(context.Background())
ltsDir, err := ioutil.TempDir(dir, "lts")
lts, err := objectstorage.NewPosixStorage(ltsDir)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
walConfig := &WalManagerConfig{
BasePath: "basepath",
E: tetcd.TestEtcd.Store,
Lts: objectstorage.NewObjStorage(lts, "/"),
EtcdWalsKeepNum: 10,
}
wal, err := NewWalManager(ctx, logger, walConfig)
walReadyCh := make(chan struct{})
t.Logf("starting wal")
go wal.Run(ctx, walReadyCh)
<-walReadyCh
actions := []*Action{
{
ActionType: ActionTypePut,
Data: []byte("{}"),
},
}
expectedObjects := []string{}
for i := 0; i < 20; i++ {
objectID := fmt.Sprintf("object%02d", i)
expectedObjects = append(expectedObjects, objectID)
actions[0].ID = objectID
if _, err := wal.WriteWal(ctx, actions, nil); err != nil {
t.Fatalf("unexpected err: %v", err)
}
}
// wait for wal to be committed storage
time.Sleep(5 * time.Second)
t.Logf("stopping wal")
cancel()
t.Logf("stopping etcd")
// Reset etcd
shutdownEtcd(tetcd)
tetcd.WaitDown(10 * time.Second)
t.Logf("resetting etcd")
os.RemoveAll(etcdDir)
t.Logf("starting etcd")
tetcd = setupEtcd(t, etcdDir)
defer shutdownEtcd(tetcd)
if err := tetcd.Start(); err != nil {
t.Fatalf("unexpected err: %v", err)
}
defer shutdownEtcd(tetcd)
ctx, cancel = context.WithCancel(context.Background())
walConfig = &WalManagerConfig{
BasePath: "basepath",
E: tetcd.TestEtcd.Store,
Lts: objectstorage.NewObjStorage(lts, "/"),
EtcdWalsKeepNum: 10,
}
wal, err = NewWalManager(ctx, logger, walConfig)
walReadyCh = make(chan struct{})
t.Logf("starting wal")
go wal.Run(ctx, walReadyCh)
<-walReadyCh
time.Sleep(5 * time.Second)
curObjects := []string{}
doneCh := make(chan struct{})
for object := range wal.List("", "", true, doneCh) {
t.Logf("path: %q", object.Path)
if object.Err != nil {
t.Fatalf("unexpected err: %v", object.Err)
}
curObjects = append(curObjects, object.Path)
}
close(doneCh)
t.Logf("curObjects: %s", curObjects)
if diff := cmp.Diff(expectedObjects, curObjects); diff != "" {
t.Error(diff)
}
}
func TestConcurrentUpdate(t *testing.T) {
dir, err := ioutil.TempDir("", "agola")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
defer os.RemoveAll(dir)
etcdDir, err := ioutil.TempDir(dir, "etcd")
tetcd := setupEtcd(t, etcdDir)
defer shutdownEtcd(tetcd)
ctx := context.Background()
ltsDir, err := ioutil.TempDir(dir, "lts")
lts, err := objectstorage.NewPosixStorage(ltsDir)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
walConfig := &WalManagerConfig{
E: tetcd.TestEtcd.Store,
Lts: objectstorage.NewObjStorage(lts, "/"),
EtcdWalsKeepNum: 10,
}
wal, err := NewWalManager(ctx, logger, walConfig)
actions := []*Action{
{
ActionType: ActionTypePut,
ID: "/object01",
Data: []byte("{}"),
},
}
walReadyCh := make(chan struct{})
go wal.Run(ctx, walReadyCh)
<-walReadyCh
time.Sleep(5 * time.Second)
cgNames := []string{"changegroup01", "changegroup02"}
cgt, err := wal.GetChangeGroupsUpdateToken(cgNames)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// populate with a wal
cgt, err = wal.WriteWal(ctx, actions, cgt)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// this must work successfully
oldcgt := cgt
cgt, err = wal.WriteWal(ctx, actions, cgt)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// this must fail since we are using the old cgt
_, err = wal.WriteWal(ctx, actions, oldcgt)
if err != ErrConcurrency {
t.Fatalf("expected err: %v, got %v", ErrConcurrency, err)
}
oldcgt = cgt
// this must work successfully
cgt, err = wal.WriteWal(ctx, actions, cgt)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// this must fail since we are using the old cgt
_, err = wal.WriteWal(ctx, actions, oldcgt)
if err != ErrConcurrency {
t.Fatalf("expected err: %v, got %v", ErrConcurrency, err)
}
}
func TestWalCleaner(t *testing.T) {
dir, err := ioutil.TempDir("", "agola")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
defer os.RemoveAll(dir)
etcdDir, err := ioutil.TempDir(dir, "etcd")
tetcd := setupEtcd(t, etcdDir)
defer shutdownEtcd(tetcd)
ctx := context.Background()
ltsDir, err := ioutil.TempDir(dir, "lts")
lts, err := objectstorage.NewPosixStorage(ltsDir)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
walKeepNum := 10
walConfig := &WalManagerConfig{
E: tetcd.TestEtcd.Store,
Lts: objectstorage.NewObjStorage(lts, "/"),
EtcdWalsKeepNum: walKeepNum,
}
wal, err := NewWalManager(ctx, logger, walConfig)
actions := []*Action{
{
ActionType: ActionTypePut,
ID: "/object01",
Data: []byte("{}"),
},
}
walReadyCh := make(chan struct{})
go wal.Run(ctx, walReadyCh)
<-walReadyCh
for i := 0; i < 20; i++ {
if _, err := wal.WriteWal(ctx, actions, nil); err != nil {
t.Fatalf("unexpected err: %v", err)
}
}
// wait for walCleaner to complete
time.Sleep(5 * time.Second)
walsCount := 0
for range wal.ListEtcdWals(ctx, 0) {
walsCount++
}
if walsCount != walKeepNum {
t.Fatalf("expected %d wals in etcd, got %d wals", walKeepNum, walsCount)
}
}