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kv_test.go
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// Copyright 2015 The etcd Authors
//
// 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 mvcc
import (
"fmt"
"os"
"reflect"
"testing"
"time"
"go.etcd.io/etcd/lease"
"go.etcd.io/etcd/mvcc/backend"
"go.etcd.io/etcd/mvcc/mvccpb"
"go.etcd.io/etcd/pkg/testutil"
"github.com/prometheus/client_golang/prometheus"
dto "github.com/prometheus/client_model/go"
"go.uber.org/zap"
)
// Functional tests for features implemented in v3 store. It treats v3 store
// as a black box, and tests it by feeding the input and validating the output.
// TODO: add similar tests on operations in one txn/rev
type (
rangeFunc func(kv KV, key, end []byte, ro RangeOptions) (*RangeResult, error)
putFunc func(kv KV, key, value []byte, lease lease.LeaseID) int64
deleteRangeFunc func(kv KV, key, end []byte) (n, rev int64)
)
var (
normalRangeFunc = func(kv KV, key, end []byte, ro RangeOptions) (*RangeResult, error) {
return kv.Range(key, end, ro)
}
txnRangeFunc = func(kv KV, key, end []byte, ro RangeOptions) (*RangeResult, error) {
txn := kv.Read()
defer txn.End()
return txn.Range(key, end, ro)
}
normalPutFunc = func(kv KV, key, value []byte, lease lease.LeaseID) int64 {
return kv.Put(key, value, lease)
}
txnPutFunc = func(kv KV, key, value []byte, lease lease.LeaseID) int64 {
txn := kv.Write()
defer txn.End()
return txn.Put(key, value, lease)
}
normalDeleteRangeFunc = func(kv KV, key, end []byte) (n, rev int64) {
return kv.DeleteRange(key, end)
}
txnDeleteRangeFunc = func(kv KV, key, end []byte) (n, rev int64) {
txn := kv.Write()
defer txn.End()
return txn.DeleteRange(key, end)
}
)
func TestKVRange(t *testing.T) { testKVRange(t, normalRangeFunc) }
func TestKVTxnRange(t *testing.T) { testKVRange(t, txnRangeFunc) }
func testKVRange(t *testing.T, f rangeFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
kvs := put3TestKVs(s)
wrev := int64(4)
tests := []struct {
key, end []byte
wkvs []mvccpb.KeyValue
}{
// get no keys
{
[]byte("doo"), []byte("foo"),
nil,
},
// get no keys when key == end
{
[]byte("foo"), []byte("foo"),
nil,
},
// get no keys when ranging single key
{
[]byte("doo"), nil,
nil,
},
// get all keys
{
[]byte("foo"), []byte("foo3"),
kvs,
},
// get partial keys
{
[]byte("foo"), []byte("foo1"),
kvs[:1],
},
// get single key
{
[]byte("foo"), nil,
kvs[:1],
},
// get entire keyspace
{
[]byte(""), []byte(""),
kvs,
},
}
for i, tt := range tests {
r, err := f(s, tt.key, tt.end, RangeOptions{})
if err != nil {
t.Fatal(err)
}
if r.Rev != wrev {
t.Errorf("#%d: rev = %d, want %d", i, r.Rev, wrev)
}
if !reflect.DeepEqual(r.KVs, tt.wkvs) {
t.Errorf("#%d: kvs = %+v, want %+v", i, r.KVs, tt.wkvs)
}
}
}
func TestKVRangeRev(t *testing.T) { testKVRangeRev(t, normalRangeFunc) }
func TestKVTxnRangeRev(t *testing.T) { testKVRangeRev(t, txnRangeFunc) }
func testKVRangeRev(t *testing.T, f rangeFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
kvs := put3TestKVs(s)
tests := []struct {
rev int64
wrev int64
wkvs []mvccpb.KeyValue
}{
{-1, 4, kvs},
{0, 4, kvs},
{2, 4, kvs[:1]},
{3, 4, kvs[:2]},
{4, 4, kvs},
}
for i, tt := range tests {
r, err := f(s, []byte("foo"), []byte("foo3"), RangeOptions{Rev: tt.rev})
if err != nil {
t.Fatal(err)
}
if r.Rev != tt.wrev {
t.Errorf("#%d: rev = %d, want %d", i, r.Rev, tt.wrev)
}
if !reflect.DeepEqual(r.KVs, tt.wkvs) {
t.Errorf("#%d: kvs = %+v, want %+v", i, r.KVs, tt.wkvs)
}
}
}
func TestKVRangeBadRev(t *testing.T) { testKVRangeBadRev(t, normalRangeFunc) }
func TestKVTxnRangeBadRev(t *testing.T) { testKVRangeBadRev(t, txnRangeFunc) }
func testKVRangeBadRev(t *testing.T, f rangeFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
put3TestKVs(s)
if _, err := s.Compact(4); err != nil {
t.Fatalf("compact error (%v)", err)
}
tests := []struct {
rev int64
werr error
}{
{-1, nil}, // <= 0 is most recent store
{0, nil},
{1, ErrCompacted},
{2, ErrCompacted},
{4, nil},
{5, ErrFutureRev},
{100, ErrFutureRev},
}
for i, tt := range tests {
_, err := f(s, []byte("foo"), []byte("foo3"), RangeOptions{Rev: tt.rev})
if err != tt.werr {
t.Errorf("#%d: error = %v, want %v", i, err, tt.werr)
}
}
}
func TestKVRangeLimit(t *testing.T) { testKVRangeLimit(t, normalRangeFunc) }
func TestKVTxnRangeLimit(t *testing.T) { testKVRangeLimit(t, txnRangeFunc) }
func testKVRangeLimit(t *testing.T, f rangeFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
kvs := put3TestKVs(s)
wrev := int64(4)
tests := []struct {
limit int64
wkvs []mvccpb.KeyValue
}{
// no limit
{-1, kvs},
// no limit
{0, kvs},
{1, kvs[:1]},
{2, kvs[:2]},
{3, kvs},
{100, kvs},
}
for i, tt := range tests {
r, err := f(s, []byte("foo"), []byte("foo3"), RangeOptions{Limit: tt.limit})
if err != nil {
t.Fatalf("#%d: range error (%v)", i, err)
}
if !reflect.DeepEqual(r.KVs, tt.wkvs) {
t.Errorf("#%d: kvs = %+v, want %+v", i, r.KVs, tt.wkvs)
}
if r.Rev != wrev {
t.Errorf("#%d: rev = %d, want %d", i, r.Rev, wrev)
}
if r.Count != len(kvs) {
t.Errorf("#%d: count = %d, want %d", i, r.Count, len(kvs))
}
}
}
func TestKVPutMultipleTimes(t *testing.T) { testKVPutMultipleTimes(t, normalPutFunc) }
func TestKVTxnPutMultipleTimes(t *testing.T) { testKVPutMultipleTimes(t, txnPutFunc) }
func testKVPutMultipleTimes(t *testing.T, f putFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
for i := 0; i < 10; i++ {
base := int64(i + 1)
rev := f(s, []byte("foo"), []byte("bar"), lease.LeaseID(base))
if rev != base+1 {
t.Errorf("#%d: rev = %d, want %d", i, rev, base+1)
}
r, err := s.Range([]byte("foo"), nil, RangeOptions{})
if err != nil {
t.Fatal(err)
}
wkvs := []mvccpb.KeyValue{
{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: base + 1, Version: base, Lease: base},
}
if !reflect.DeepEqual(r.KVs, wkvs) {
t.Errorf("#%d: kvs = %+v, want %+v", i, r.KVs, wkvs)
}
}
}
func TestKVDeleteRange(t *testing.T) { testKVDeleteRange(t, normalDeleteRangeFunc) }
func TestKVTxnDeleteRange(t *testing.T) { testKVDeleteRange(t, txnDeleteRangeFunc) }
func testKVDeleteRange(t *testing.T, f deleteRangeFunc) {
tests := []struct {
key, end []byte
wrev int64
wN int64
}{
{
[]byte("foo"), nil,
5, 1,
},
{
[]byte("foo"), []byte("foo1"),
5, 1,
},
{
[]byte("foo"), []byte("foo2"),
5, 2,
},
{
[]byte("foo"), []byte("foo3"),
5, 3,
},
{
[]byte("foo3"), []byte("foo8"),
4, 0,
},
{
[]byte("foo3"), nil,
4, 0,
},
}
for i, tt := range tests {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
s.Put([]byte("foo"), []byte("bar"), lease.NoLease)
s.Put([]byte("foo1"), []byte("bar1"), lease.NoLease)
s.Put([]byte("foo2"), []byte("bar2"), lease.NoLease)
n, rev := f(s, tt.key, tt.end)
if n != tt.wN || rev != tt.wrev {
t.Errorf("#%d: n = %d, rev = %d, want (%d, %d)", i, n, rev, tt.wN, tt.wrev)
}
cleanup(s, b, tmpPath)
}
}
func TestKVDeleteMultipleTimes(t *testing.T) { testKVDeleteMultipleTimes(t, normalDeleteRangeFunc) }
func TestKVTxnDeleteMultipleTimes(t *testing.T) { testKVDeleteMultipleTimes(t, txnDeleteRangeFunc) }
func testKVDeleteMultipleTimes(t *testing.T, f deleteRangeFunc) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
s.Put([]byte("foo"), []byte("bar"), lease.NoLease)
n, rev := f(s, []byte("foo"), nil)
if n != 1 || rev != 3 {
t.Fatalf("n = %d, rev = %d, want (%d, %d)", n, rev, 1, 3)
}
for i := 0; i < 10; i++ {
n, rev := f(s, []byte("foo"), nil)
if n != 0 || rev != 3 {
t.Fatalf("#%d: n = %d, rev = %d, want (%d, %d)", i, n, rev, 0, 3)
}
}
}
// test that range, put, delete on single key in sequence repeatedly works correctly.
func TestKVOperationInSequence(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
for i := 0; i < 10; i++ {
base := int64(i*2 + 1)
// put foo
rev := s.Put([]byte("foo"), []byte("bar"), lease.NoLease)
if rev != base+1 {
t.Errorf("#%d: put rev = %d, want %d", i, rev, base+1)
}
r, err := s.Range([]byte("foo"), nil, RangeOptions{Rev: base + 1})
if err != nil {
t.Fatal(err)
}
wkvs := []mvccpb.KeyValue{
{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: base + 1, ModRevision: base + 1, Version: 1, Lease: int64(lease.NoLease)},
}
if !reflect.DeepEqual(r.KVs, wkvs) {
t.Errorf("#%d: kvs = %+v, want %+v", i, r.KVs, wkvs)
}
if r.Rev != base+1 {
t.Errorf("#%d: range rev = %d, want %d", i, rev, base+1)
}
// delete foo
n, rev := s.DeleteRange([]byte("foo"), nil)
if n != 1 || rev != base+2 {
t.Errorf("#%d: n = %d, rev = %d, want (%d, %d)", i, n, rev, 1, base+2)
}
r, err = s.Range([]byte("foo"), nil, RangeOptions{Rev: base + 2})
if err != nil {
t.Fatal(err)
}
if r.KVs != nil {
t.Errorf("#%d: kvs = %+v, want %+v", i, r.KVs, nil)
}
if r.Rev != base+2 {
t.Errorf("#%d: range rev = %d, want %d", i, r.Rev, base+2)
}
}
}
func TestKVTxnBlockWriteOperations(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
tests := []func(){
func() { s.Put([]byte("foo"), nil, lease.NoLease) },
func() { s.DeleteRange([]byte("foo"), nil) },
}
for i, tt := range tests {
txn := s.Write()
done := make(chan struct{}, 1)
go func() {
tt()
done <- struct{}{}
}()
select {
case <-done:
t.Fatalf("#%d: operation failed to be blocked", i)
case <-time.After(10 * time.Millisecond):
}
txn.End()
select {
case <-done:
case <-time.After(10 * time.Second):
testutil.FatalStack(t, fmt.Sprintf("#%d: operation failed to be unblocked", i))
}
}
// only close backend when we know all the tx are finished
cleanup(s, b, tmpPath)
}
func TestKVTxnNonBlockRange(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
txn := s.Write()
defer txn.End()
donec := make(chan struct{})
go func() {
defer close(donec)
s.Range([]byte("foo"), nil, RangeOptions{})
}()
select {
case <-donec:
case <-time.After(100 * time.Millisecond):
t.Fatalf("range operation blocked on write txn")
}
}
// test that txn range, put, delete on single key in sequence repeatedly works correctly.
func TestKVTxnOperationInSequence(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
for i := 0; i < 10; i++ {
txn := s.Write()
base := int64(i + 1)
// put foo
rev := txn.Put([]byte("foo"), []byte("bar"), lease.NoLease)
if rev != base+1 {
t.Errorf("#%d: put rev = %d, want %d", i, rev, base+1)
}
r, err := txn.Range([]byte("foo"), nil, RangeOptions{Rev: base + 1})
if err != nil {
t.Fatal(err)
}
wkvs := []mvccpb.KeyValue{
{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: base + 1, ModRevision: base + 1, Version: 1, Lease: int64(lease.NoLease)},
}
if !reflect.DeepEqual(r.KVs, wkvs) {
t.Errorf("#%d: kvs = %+v, want %+v", i, r.KVs, wkvs)
}
if r.Rev != base+1 {
t.Errorf("#%d: range rev = %d, want %d", i, r.Rev, base+1)
}
// delete foo
n, rev := txn.DeleteRange([]byte("foo"), nil)
if n != 1 || rev != base+1 {
t.Errorf("#%d: n = %d, rev = %d, want (%d, %d)", i, n, rev, 1, base+1)
}
r, err = txn.Range([]byte("foo"), nil, RangeOptions{Rev: base + 1})
if err != nil {
t.Errorf("#%d: range error (%v)", i, err)
}
if r.KVs != nil {
t.Errorf("#%d: kvs = %+v, want %+v", i, r.KVs, nil)
}
if r.Rev != base+1 {
t.Errorf("#%d: range rev = %d, want %d", i, r.Rev, base+1)
}
txn.End()
}
}
func TestKVCompactReserveLastValue(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
s.Put([]byte("foo"), []byte("bar0"), 1)
s.Put([]byte("foo"), []byte("bar1"), 2)
s.DeleteRange([]byte("foo"), nil)
s.Put([]byte("foo"), []byte("bar2"), 3)
// rev in tests will be called in Compact() one by one on the same store
tests := []struct {
rev int64
// wanted kvs right after the compacted rev
wkvs []mvccpb.KeyValue
}{
{
1,
[]mvccpb.KeyValue{
{Key: []byte("foo"), Value: []byte("bar0"), CreateRevision: 2, ModRevision: 2, Version: 1, Lease: 1},
},
},
{
2,
[]mvccpb.KeyValue{
{Key: []byte("foo"), Value: []byte("bar1"), CreateRevision: 2, ModRevision: 3, Version: 2, Lease: 2},
},
},
{
3,
nil,
},
{
4,
[]mvccpb.KeyValue{
{Key: []byte("foo"), Value: []byte("bar2"), CreateRevision: 5, ModRevision: 5, Version: 1, Lease: 3},
},
},
}
for i, tt := range tests {
_, err := s.Compact(tt.rev)
if err != nil {
t.Errorf("#%d: unexpect compact error %v", i, err)
}
r, err := s.Range([]byte("foo"), nil, RangeOptions{Rev: tt.rev + 1})
if err != nil {
t.Errorf("#%d: unexpect range error %v", i, err)
}
if !reflect.DeepEqual(r.KVs, tt.wkvs) {
t.Errorf("#%d: kvs = %+v, want %+v", i, r.KVs, tt.wkvs)
}
}
}
func TestKVCompactBad(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
s.Put([]byte("foo"), []byte("bar0"), lease.NoLease)
s.Put([]byte("foo"), []byte("bar1"), lease.NoLease)
s.Put([]byte("foo"), []byte("bar2"), lease.NoLease)
// rev in tests will be called in Compact() one by one on the same store
tests := []struct {
rev int64
werr error
}{
{0, nil},
{1, nil},
{1, ErrCompacted},
{4, nil},
{5, ErrFutureRev},
{100, ErrFutureRev},
}
for i, tt := range tests {
_, err := s.Compact(tt.rev)
if err != tt.werr {
t.Errorf("#%d: compact error = %v, want %v", i, err, tt.werr)
}
}
}
func TestKVHash(t *testing.T) {
hashes := make([]uint32, 3)
for i := 0; i < len(hashes); i++ {
var err error
b, tmpPath := backend.NewDefaultTmpBackend()
kv := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
kv.Put([]byte("foo0"), []byte("bar0"), lease.NoLease)
kv.Put([]byte("foo1"), []byte("bar0"), lease.NoLease)
hashes[i], _, err = kv.Hash()
if err != nil {
t.Fatalf("failed to get hash: %v", err)
}
cleanup(kv, b, tmpPath)
}
for i := 1; i < len(hashes); i++ {
if hashes[i-1] != hashes[i] {
t.Errorf("hash[%d](%d) != hash[%d](%d)", i-1, hashes[i-1], i, hashes[i])
}
}
}
func TestKVRestore(t *testing.T) {
tests := []func(kv KV){
func(kv KV) {
kv.Put([]byte("foo"), []byte("bar0"), 1)
kv.Put([]byte("foo"), []byte("bar1"), 2)
kv.Put([]byte("foo"), []byte("bar2"), 3)
kv.Put([]byte("foo2"), []byte("bar0"), 1)
},
func(kv KV) {
kv.Put([]byte("foo"), []byte("bar0"), 1)
kv.DeleteRange([]byte("foo"), nil)
kv.Put([]byte("foo"), []byte("bar1"), 2)
},
func(kv KV) {
kv.Put([]byte("foo"), []byte("bar0"), 1)
kv.Put([]byte("foo"), []byte("bar1"), 2)
kv.Compact(1)
},
}
for i, tt := range tests {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
tt(s)
var kvss [][]mvccpb.KeyValue
for k := int64(0); k < 10; k++ {
r, _ := s.Range([]byte("a"), []byte("z"), RangeOptions{Rev: k})
kvss = append(kvss, r.KVs)
}
keysBefore := readGaugeInt(keysGauge)
s.Close()
// ns should recover the the previous state from backend.
ns := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
if keysRestore := readGaugeInt(keysGauge); keysBefore != keysRestore {
t.Errorf("#%d: got %d key count, expected %d", i, keysRestore, keysBefore)
}
// wait for possible compaction to finish
testutil.WaitSchedule()
var nkvss [][]mvccpb.KeyValue
for k := int64(0); k < 10; k++ {
r, _ := ns.Range([]byte("a"), []byte("z"), RangeOptions{Rev: k})
nkvss = append(nkvss, r.KVs)
}
cleanup(ns, b, tmpPath)
if !reflect.DeepEqual(nkvss, kvss) {
t.Errorf("#%d: kvs history = %+v, want %+v", i, nkvss, kvss)
}
}
}
func readGaugeInt(g prometheus.Gauge) int {
ch := make(chan prometheus.Metric, 1)
g.Collect(ch)
m := <-ch
mm := &dto.Metric{}
m.Write(mm)
return int(mm.GetGauge().GetValue())
}
func TestKVSnapshot(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer cleanup(s, b, tmpPath)
wkvs := put3TestKVs(s)
newPath := "new_test"
f, err := os.Create(newPath)
if err != nil {
t.Fatal(err)
}
defer os.Remove(newPath)
snap := s.b.Snapshot()
defer snap.Close()
_, err = snap.WriteTo(f)
if err != nil {
t.Fatal(err)
}
f.Close()
ns := NewStore(zap.NewExample(), b, &lease.FakeLessor{}, nil)
defer ns.Close()
r, err := ns.Range([]byte("a"), []byte("z"), RangeOptions{})
if err != nil {
t.Errorf("unexpect range error (%v)", err)
}
if !reflect.DeepEqual(r.KVs, wkvs) {
t.Errorf("kvs = %+v, want %+v", r.KVs, wkvs)
}
if r.Rev != 4 {
t.Errorf("rev = %d, want %d", r.Rev, 4)
}
}
func TestWatchableKVWatch(t *testing.T) {
b, tmpPath := backend.NewDefaultTmpBackend()
s := WatchableKV(newWatchableStore(zap.NewExample(), b, &lease.FakeLessor{}, nil))
defer cleanup(s, b, tmpPath)
w := s.NewWatchStream()
defer w.Close()
wid, _ := w.Watch(0, []byte("foo"), []byte("fop"), 0)
wev := []mvccpb.Event{
{Type: mvccpb.PUT,
Kv: &mvccpb.KeyValue{
Key: []byte("foo"),
Value: []byte("bar"),
CreateRevision: 2,
ModRevision: 2,
Version: 1,
Lease: 1,
},
},
{
Type: mvccpb.PUT,
Kv: &mvccpb.KeyValue{
Key: []byte("foo1"),
Value: []byte("bar1"),
CreateRevision: 3,
ModRevision: 3,
Version: 1,
Lease: 2,
},
},
{
Type: mvccpb.PUT,
Kv: &mvccpb.KeyValue{
Key: []byte("foo1"),
Value: []byte("bar11"),
CreateRevision: 3,
ModRevision: 4,
Version: 2,
Lease: 3,
},
},
}
s.Put([]byte("foo"), []byte("bar"), 1)
select {
case resp := <-w.Chan():
if resp.WatchID != wid {
t.Errorf("resp.WatchID got = %d, want = %d", resp.WatchID, wid)
}
ev := resp.Events[0]
if !reflect.DeepEqual(ev, wev[0]) {
t.Errorf("watched event = %+v, want %+v", ev, wev[0])
}
case <-time.After(5 * time.Second):
// CPU might be too slow, and the routine is not able to switch around
testutil.FatalStack(t, "failed to watch the event")
}
s.Put([]byte("foo1"), []byte("bar1"), 2)
select {
case resp := <-w.Chan():
if resp.WatchID != wid {
t.Errorf("resp.WatchID got = %d, want = %d", resp.WatchID, wid)
}
ev := resp.Events[0]
if !reflect.DeepEqual(ev, wev[1]) {
t.Errorf("watched event = %+v, want %+v", ev, wev[1])
}
case <-time.After(5 * time.Second):
testutil.FatalStack(t, "failed to watch the event")
}
w = s.NewWatchStream()
wid, _ = w.Watch(0, []byte("foo1"), []byte("foo2"), 3)
select {
case resp := <-w.Chan():
if resp.WatchID != wid {
t.Errorf("resp.WatchID got = %d, want = %d", resp.WatchID, wid)
}
ev := resp.Events[0]
if !reflect.DeepEqual(ev, wev[1]) {
t.Errorf("watched event = %+v, want %+v", ev, wev[1])
}
case <-time.After(5 * time.Second):
testutil.FatalStack(t, "failed to watch the event")
}
s.Put([]byte("foo1"), []byte("bar11"), 3)
select {
case resp := <-w.Chan():
if resp.WatchID != wid {
t.Errorf("resp.WatchID got = %d, want = %d", resp.WatchID, wid)
}
ev := resp.Events[0]
if !reflect.DeepEqual(ev, wev[2]) {
t.Errorf("watched event = %+v, want %+v", ev, wev[2])
}
case <-time.After(5 * time.Second):
testutil.FatalStack(t, "failed to watch the event")
}
}
func cleanup(s KV, b backend.Backend, path string) {
s.Close()
b.Close()
os.Remove(path)
}
func put3TestKVs(s KV) []mvccpb.KeyValue {
s.Put([]byte("foo"), []byte("bar"), 1)
s.Put([]byte("foo1"), []byte("bar1"), 2)
s.Put([]byte("foo2"), []byte("bar2"), 3)
return []mvccpb.KeyValue{
{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 2, Version: 1, Lease: 1},
{Key: []byte("foo1"), Value: []byte("bar1"), CreateRevision: 3, ModRevision: 3, Version: 1, Lease: 2},
{Key: []byte("foo2"), Value: []byte("bar2"), CreateRevision: 4, ModRevision: 4, Version: 1, Lease: 3},
}
}