agola/internal/datamanager/datamanager_test.go
Simone Gotti d989fe9639 datamanager: always handle basepath
Currently we aren't setting a basepath and it wasn't always correctly handled.
Fix missing basepath handling and improve tests to also use a non empty
basepath.
2019-07-03 17:03:37 +02:00

840 lines
21 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 datamanager
import (
"context"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"os"
"reflect"
"sort"
"testing"
"time"
slog "agola.io/agola/internal/log"
"agola.io/agola/internal/objectstorage"
"agola.io/agola/internal/objectstorage/posix"
ostypes "agola.io/agola/internal/objectstorage/types"
"agola.io/agola/internal/testutil"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
var level = zap.NewAtomicLevelAt(zapcore.InfoLevel)
var logger = slog.New(level)
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()
}
}
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")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
tetcd := setupEtcd(t, etcdDir)
defer shutdownEtcd(tetcd)
ctx, cancel := context.WithCancel(context.Background())
ostDir, err := ioutil.TempDir(dir, "ost")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
ost, err := posix.New(ostDir)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
dmConfig := &DataManagerConfig{
BasePath: "basepath",
E: tetcd.TestEtcd.Store,
OST: objectstorage.NewObjStorage(ost, "/"),
EtcdWalsKeepNum: 10,
DataTypes: []string{"datatype01"},
}
dm, err := NewDataManager(ctx, logger, dmConfig)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
dmReadyCh := make(chan struct{})
t.Logf("starting datamanager")
go func() { _ = dm.Run(ctx, dmReadyCh) }()
<-dmReadyCh
actions := []*Action{
{
ActionType: ActionTypePut,
DataType: "datatype01",
Data: []byte("{}"),
},
}
for i := 0; i < 20; i++ {
objectID := fmt.Sprintf("object%02d", i)
actions[0].ID = objectID
if _, err := dm.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 datamanager")
cancel()
t.Logf("stopping etcd")
// Reset etcd
shutdownEtcd(tetcd)
if err := tetcd.WaitDown(10 * time.Second); err != nil {
t.Fatalf("unexpected err: %v", err)
}
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())
defer cancel()
dmConfig = &DataManagerConfig{
BasePath: "basepath",
E: tetcd.TestEtcd.Store,
OST: objectstorage.NewObjStorage(ost, "/"),
EtcdWalsKeepNum: 10,
DataTypes: []string{"datatype01"},
}
dm, err = NewDataManager(ctx, logger, dmConfig)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
dmReadyCh = make(chan struct{})
t.Logf("starting datamanager")
go func() { _ = dm.Run(ctx, dmReadyCh) }()
<-dmReadyCh
time.Sleep(5 * time.Second)
for i := 0; i < 20; i++ {
objectID := fmt.Sprintf("object%02d", i)
_, _, err = dm.ReadObject("datatype01", objectID, nil)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
}
}
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")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
tetcd := setupEtcd(t, etcdDir)
defer shutdownEtcd(tetcd)
ctx := context.Background()
ostDir, err := ioutil.TempDir(dir, "ost")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
ost, err := posix.New(ostDir)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
dmConfig := &DataManagerConfig{
E: tetcd.TestEtcd.Store,
OST: objectstorage.NewObjStorage(ost, "/"),
EtcdWalsKeepNum: 10,
DataTypes: []string{"datatype01"},
}
dm, err := NewDataManager(ctx, logger, dmConfig)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
actions := []*Action{
{
ActionType: ActionTypePut,
ID: "object01",
DataType: "datatype01",
Data: []byte("{}"),
},
}
dmReadyCh := make(chan struct{})
go func() { _ = dm.Run(ctx, dmReadyCh) }()
<-dmReadyCh
time.Sleep(5 * time.Second)
cgNames := []string{"changegroup01", "changegroup02"}
cgt, err := dm.GetChangeGroupsUpdateToken(cgNames)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// populate with a wal
cgt, err = dm.WriteWal(ctx, actions, cgt)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// this must work successfully
oldcgt := cgt
cgt, err = dm.WriteWal(ctx, actions, cgt)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// this must fail since we are using the old cgt
_, err = dm.WriteWal(ctx, actions, oldcgt)
if err != ErrConcurrency {
t.Fatalf("expected err: %v, got %v", ErrConcurrency, err)
}
oldcgt = cgt
// this must work successfully
_, err = dm.WriteWal(ctx, actions, cgt)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// this must fail since we are using the old cgt
_, err = dm.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")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
tetcd := setupEtcd(t, etcdDir)
defer shutdownEtcd(tetcd)
ctx := context.Background()
ostDir, err := ioutil.TempDir(dir, "ost")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
ost, err := posix.New(ostDir)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
walKeepNum := 10
dmConfig := &DataManagerConfig{
E: tetcd.TestEtcd.Store,
OST: objectstorage.NewObjStorage(ost, "/"),
EtcdWalsKeepNum: walKeepNum,
DataTypes: []string{"datatype01"},
MinCheckpointWalsNum: 1,
}
dm, err := NewDataManager(ctx, logger, dmConfig)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
actions := []*Action{
{
ActionType: ActionTypePut,
ID: "object01",
DataType: "datatype01",
Data: []byte("{}"),
},
}
dmReadyCh := make(chan struct{})
go func() { _ = dm.Run(ctx, dmReadyCh) }()
<-dmReadyCh
for i := 0; i < 20; i++ {
if _, err := dm.WriteWal(ctx, actions, nil); err != nil {
t.Fatalf("unexpected err: %v", err)
}
}
if err := dm.checkpoint(ctx); err != nil {
t.Fatalf("unexpected err: %v", err)
}
if err := dm.walCleaner(ctx); err != nil {
t.Fatalf("unexpected err: %v", err)
}
walsCount := 0
for range dm.ListEtcdWals(ctx, 0) {
walsCount++
}
if walsCount != walKeepNum {
t.Fatalf("expected %d wals in etcd, got %d wals", walKeepNum, walsCount)
}
}
func TestReadObject(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")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
tetcd := setupEtcd(t, etcdDir)
defer shutdownEtcd(tetcd)
ctx := context.Background()
ostDir, err := ioutil.TempDir(dir, "ost")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
ost, err := posix.New(ostDir)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
dmConfig := &DataManagerConfig{
E: tetcd.TestEtcd.Store,
OST: objectstorage.NewObjStorage(ost, "/"),
// remove almost all wals to see that they are removed also from changes
EtcdWalsKeepNum: 1,
DataTypes: []string{"datatype01"},
}
dm, err := NewDataManager(ctx, logger, dmConfig)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
dmReadyCh := make(chan struct{})
go func() { _ = dm.Run(ctx, dmReadyCh) }()
<-dmReadyCh
time.Sleep(5 * time.Second)
actions := []*Action{}
for i := 0; i < 20; i++ {
actions = append(actions, &Action{
ActionType: ActionTypePut,
ID: fmt.Sprintf("object%d", i),
DataType: "datatype01",
Data: []byte(fmt.Sprintf(`{ "ID": "%d" }`, i)),
})
}
// populate with a wal
_, err = dm.WriteWal(ctx, actions, nil)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// wait for the event to be read
time.Sleep(500 * time.Millisecond)
// should read it
_, _, err = dm.ReadObject("datatype01", "object1", nil)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
_, _, err = dm.ReadObject("datatype01", "object19", nil)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
actions = []*Action{}
for i := 0; i < 10; i++ {
actions = append(actions, &Action{
ActionType: ActionTypeDelete,
ID: fmt.Sprintf("object%d", i),
DataType: "datatype01",
})
}
_, err = dm.WriteWal(ctx, actions, nil)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// wait for the event to be read
time.Sleep(500 * time.Millisecond)
// test read from changes (since not checkpoint yet)
// should not exists
_, _, err = dm.ReadObject("datatype01", "object1", nil)
if err != ostypes.ErrNotExist {
t.Fatalf("expected err %v, got: %v", ostypes.ErrNotExist, err)
}
// should exist
_, _, err = dm.ReadObject("datatype01", "object19", nil)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// do a checkpoint and wal clean
if err := dm.checkpoint(ctx); err != nil {
t.Fatalf("unexpected err: %v", err)
}
if err := dm.walCleaner(ctx); err != nil {
t.Fatalf("unexpected err: %v", err)
}
// wait for the event to be read
time.Sleep(500 * time.Millisecond)
// test read from data
// should not exists
_, _, err = dm.ReadObject("datatype01", "object1", nil)
if err != ostypes.ErrNotExist {
t.Fatalf("expected err %v, got: %v", ostypes.ErrNotExist, err)
}
// should exist
_, _, err = dm.ReadObject("datatype01", "object19", nil)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
}
func doAndCheckCheckpoint(t *testing.T, ctx context.Context, dm *DataManager, actionGroups [][]*Action, currentEntries map[string]*DataEntry) (map[string]*DataEntry, error) {
expectedEntries := map[string]*DataEntry{}
for _, e := range currentEntries {
expectedEntries[e.ID] = e
}
for _, actionGroup := range actionGroups {
for _, action := range actionGroup {
switch action.ActionType {
case ActionTypePut:
expectedEntries[action.ID] = &DataEntry{ID: action.ID, DataType: action.DataType, Data: action.Data}
case ActionTypeDelete:
delete(expectedEntries, action.ID)
}
}
}
for _, actionGroup := range actionGroups {
// populate with a wal
_, err := dm.WriteWal(ctx, actionGroup, nil)
if err != nil {
return nil, err
}
}
// wait for the event to be read
time.Sleep(500 * time.Millisecond)
// do a checkpoint
if err := dm.checkpoint(ctx); err != nil {
return nil, err
}
if err := checkDataFiles(ctx, t, dm, expectedEntries); err != nil {
return nil, err
}
return expectedEntries, nil
}
// TODO(sgotti) some fuzzy testing will be really good
func TestCheckpoint(t *testing.T) {
tests := []struct {
name string
basePath string
}{
{
name: "test with empty basepath",
basePath: "",
},
{
name: "test with relative basepath",
basePath: "base/path",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
testCheckpoint(t, tt.basePath)
})
}
}
func testCheckpoint(t *testing.T, basePath string) {
dir, err := ioutil.TempDir("", "agola")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
defer os.RemoveAll(dir)
etcdDir, err := ioutil.TempDir(dir, "etcd")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
tetcd := setupEtcd(t, etcdDir)
defer shutdownEtcd(tetcd)
ctx := context.Background()
ostDir, err := ioutil.TempDir(dir, "ost")
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
ost, err := posix.New(ostDir)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
dmConfig := &DataManagerConfig{
BasePath: basePath,
E: tetcd.TestEtcd.Store,
OST: objectstorage.NewObjStorage(ost, "/"),
// remove almost all wals to see that they are removed also from changes
EtcdWalsKeepNum: 1,
DataTypes: []string{"datatype01"},
// checkpoint also with only one wal
MinCheckpointWalsNum: 1,
// use a small maxDataFileSize
MaxDataFileSize: 10 * 1024,
}
dm, err := NewDataManager(ctx, logger, dmConfig)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
dmReadyCh := make(chan struct{})
go func() { _ = dm.Run(ctx, dmReadyCh) }()
<-dmReadyCh
time.Sleep(5 * time.Second)
contents := "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
// test insert from scratch (no current entries)
actions := []*Action{}
for i := 200; i < 400; i++ {
action := &Action{
ActionType: ActionTypePut,
ID: fmt.Sprintf("object%04d", i),
DataType: "datatype01",
Data: []byte(fmt.Sprintf(`{ "ID": "%d", "Contents": %s }`, i, contents)),
}
actions = append(actions, action)
}
currentEntries, err := doAndCheckCheckpoint(t, ctx, dm, [][]*Action{actions}, nil)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// test delete of all existing entries
actions = []*Action{}
for i := 200; i < 400; i++ {
actions = append(actions, &Action{
ActionType: ActionTypeDelete,
ID: fmt.Sprintf("object%04d", i),
DataType: "datatype01",
})
}
currentEntries, err = doAndCheckCheckpoint(t, ctx, dm, [][]*Action{actions}, currentEntries)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// test insert from scratch again (no current entries)
actions = []*Action{}
for i := 200; i < 400; i++ {
action := &Action{
ActionType: ActionTypePut,
ID: fmt.Sprintf("object%04d", i),
DataType: "datatype01",
Data: []byte(fmt.Sprintf(`{ "ID": "%d", "Contents": %s }`, i, contents)),
}
actions = append(actions, action)
}
currentEntries, err = doAndCheckCheckpoint(t, ctx, dm, [][]*Action{actions}, currentEntries)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// test delete some existing entries in the middle
actions = []*Action{}
for i := 250; i < 350; i++ {
action := &Action{
ActionType: ActionTypeDelete,
ID: fmt.Sprintf("object%04d", i),
DataType: "datatype01",
}
actions = append(actions, action)
}
currentEntries, err = doAndCheckCheckpoint(t, ctx, dm, [][]*Action{actions}, currentEntries)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// test delete of unexisting entries
actions = []*Action{}
for i := 1000; i < 1010; i++ {
action := &Action{
ActionType: ActionTypeDelete,
ID: fmt.Sprintf("object%04d", i),
DataType: "datatype01",
}
actions = append(actions, action)
}
currentEntries, err = doAndCheckCheckpoint(t, ctx, dm, [][]*Action{actions}, currentEntries)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// test update and insert at the end
actions = []*Action{}
for i := 300; i < 500; i++ {
action := &Action{
ActionType: ActionTypePut,
ID: fmt.Sprintf("object%04d", i),
DataType: "datatype01",
Data: []byte(fmt.Sprintf(`{ "ID": "%d", "Contents": %s }`, i, contents)),
}
actions = append(actions, action)
}
currentEntries, err = doAndCheckCheckpoint(t, ctx, dm, [][]*Action{actions}, currentEntries)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// test update and insert at the start
actions = []*Action{}
for i := 0; i < 300; i++ {
action := &Action{
ActionType: ActionTypePut,
ID: fmt.Sprintf("object%04d", i),
DataType: "datatype01",
Data: []byte(fmt.Sprintf(`{ "ID": "%d", "Contents": %s }`, i, contents)),
}
actions = append(actions, action)
}
currentEntries, err = doAndCheckCheckpoint(t, ctx, dm, [][]*Action{actions}, currentEntries)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
// test multiple wals with different insert, updated, deletes
actionGroups := [][]*Action{}
for i := 0; i < 150; i++ {
action := &Action{
ActionType: ActionTypePut,
ID: fmt.Sprintf("object%04d", i),
DataType: "datatype01",
Data: []byte(fmt.Sprintf(`{ "ID": "%d", "Contents": %s }`, i, contents)),
}
actions = append(actions, action)
}
actionGroups = append(actionGroups, actions)
for i := 50; i < 100; i++ {
action := &Action{
ActionType: ActionTypeDelete,
ID: fmt.Sprintf("object%04d", i),
DataType: "datatype01",
Data: []byte(fmt.Sprintf(`{ "ID": "%d", "Contents": %s }`, i, contents)),
}
actions = append(actions, action)
}
actionGroups = append(actionGroups, actions)
for i := 250; i < 300; i++ {
action := &Action{
ActionType: ActionTypeDelete,
ID: fmt.Sprintf("object%04d", i),
DataType: "datatype01",
Data: []byte(fmt.Sprintf(`{ "ID": "%d", "Contents": %s }`, i, contents)),
}
actions = append(actions, action)
}
for i := 70; i < 80; i++ {
action := &Action{
ActionType: ActionTypePut,
ID: fmt.Sprintf("object%04d", i),
DataType: "datatype01",
Data: []byte(fmt.Sprintf(`{ "ID": "%d", "Contents": %s }`, i, contents)),
}
actions = append(actions, action)
}
actionGroups = append(actionGroups, actions)
_, err = doAndCheckCheckpoint(t, ctx, dm, actionGroups, currentEntries)
if err != nil {
t.Fatalf("unexpected err: %v", err)
}
}
func checkDataFiles(ctx context.Context, t *testing.T, dm *DataManager, expectedEntriesMap map[string]*DataEntry) error {
// read the data file
curDataStatus, err := dm.GetLastDataStatus()
if err != nil {
return err
}
allEntriesMap := map[string]*DataEntry{}
var prevLastEntryID string
for i, file := range curDataStatus.Files["datatype01"] {
dataFileIndexf, err := dm.ost.ReadObject(dm.DataFileIndexPath("datatype01", file.ID))
if err != nil {
return err
}
var dataFileIndex *DataFileIndex
dec := json.NewDecoder(dataFileIndexf)
err = dec.Decode(&dataFileIndex)
if err != nil {
dataFileIndexf.Close()
return err
}
dataFileIndexf.Close()
dataEntriesMap := map[string]*DataEntry{}
dataEntries := []*DataEntry{}
dataf, err := dm.ost.ReadObject(dm.DataFilePath("datatype01", file.ID))
if err != nil {
return err
}
dec = json.NewDecoder(dataf)
var prevEntryID string
for {
var de *DataEntry
err := dec.Decode(&de)
if err == io.EOF {
// all done
break
}
if err != nil {
dataf.Close()
return err
}
// check that there are no duplicate entries
if _, ok := allEntriesMap[de.ID]; ok {
return fmt.Errorf("duplicate entry id: %s", de.ID)
}
// check that the entries are in order
if de.ID < prevEntryID {
return fmt.Errorf("previous entry id: %s greater than entry id: %s", prevEntryID, de.ID)
}
dataEntriesMap[de.ID] = de
dataEntries = append(dataEntries, de)
allEntriesMap[de.ID] = de
}
dataf.Close()
// check that the index matches the entries
if len(dataFileIndex.Index) != len(dataEntriesMap) {
return fmt.Errorf("index entries: %d different than data entries: %d", len(dataFileIndex.Index), len(dataEntriesMap))
}
indexIDs := make([]string, len(dataFileIndex.Index))
entriesIDs := make([]string, len(dataEntriesMap))
for id := range dataFileIndex.Index {
indexIDs = append(indexIDs, id)
}
for id := range dataEntriesMap {
entriesIDs = append(entriesIDs, id)
}
sort.Strings(indexIDs)
sort.Strings(entriesIDs)
if !reflect.DeepEqual(indexIDs, entriesIDs) {
return fmt.Errorf("index entries ids don't match data entries ids: index: %v, data: %v", indexIDs, entriesIDs)
}
if file.LastEntryID != dataEntries[len(dataEntries)-1].ID {
return fmt.Errorf("lastEntryID for datafile %d: %s is different than real last entry id: %s", i, file.LastEntryID, dataEntries[len(dataEntries)-1].ID)
}
// check that all the files are in order
if file.LastEntryID == prevLastEntryID {
return fmt.Errorf("lastEntryID for datafile %d is equal than previous file lastEntryID: %s == %s", i, file.LastEntryID, prevLastEntryID)
}
if file.LastEntryID < prevLastEntryID {
return fmt.Errorf("lastEntryID for datafile %d is less than previous file lastEntryID: %s < %s", i, file.LastEntryID, prevLastEntryID)
}
prevLastEntryID = file.LastEntryID
}
// check that the number of entries is right
if len(allEntriesMap) != len(expectedEntriesMap) {
return fmt.Errorf("expected %d total entries, got %d", len(expectedEntriesMap), len(allEntriesMap))
}
if !reflect.DeepEqual(expectedEntriesMap, allEntriesMap) {
return fmt.Errorf("expected entries don't match current entries")
}
return nil
}