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@@ -0,0 +1,715 @@
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+// Copyright 2016 CoreOS, Inc.
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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.package recipe
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+package integration
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+
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+import (
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+ "bytes"
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+ "fmt"
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+ "reflect"
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+ "sort"
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+ "sync"
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+ "testing"
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+ "time"
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+
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+ "github.com/coreos/etcd/Godeps/_workspace/src/golang.org/x/net/context"
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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/coreos/etcd/storage/storagepb"
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+)
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+
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+// TestV3WatchFromCurrentRevision tests Watch APIs from current revision.
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+func TestV3WatchFromCurrentRevision(t *testing.T) {
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+ defer testutil.AfterTest(t)
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+ tests := []struct {
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+ putKeys []string
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+ watchRequest *pb.WatchRequest
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+
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+ wresps []*pb.WatchResponse
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+ }{
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+ // watch the key, matching
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+ {
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+ []string{"foo"},
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+ &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
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+ CreateRequest: &pb.WatchCreateRequest{
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+ Key: []byte("foo")}}},
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+
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+ []*pb.WatchResponse{
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+ {
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+ Header: &pb.ResponseHeader{Revision: 1},
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+ Created: true,
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+ },
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+ {
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+ Header: &pb.ResponseHeader{Revision: 2},
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+ Created: false,
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+ Events: []*storagepb.Event{
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+ {
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+ Type: storagepb.PUT,
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+ Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 2, Version: 1},
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+ },
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+ },
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+ },
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+ },
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+ },
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+ // watch the key, non-matching
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+ {
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+ []string{"foo"},
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+ &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
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+ CreateRequest: &pb.WatchCreateRequest{
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+ Key: []byte("helloworld")}}},
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+
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+ []*pb.WatchResponse{
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+ {
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+ Header: &pb.ResponseHeader{Revision: 1},
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+ Created: true,
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+ },
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+ },
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+ },
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+ // watch the prefix, matching
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+ {
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+ []string{"fooLong"},
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+ &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
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+ CreateRequest: &pb.WatchCreateRequest{
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+ Prefix: []byte("foo")}}},
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+
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+ []*pb.WatchResponse{
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+ {
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+ Header: &pb.ResponseHeader{Revision: 1},
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+ Created: true,
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+ },
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+ {
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+ Header: &pb.ResponseHeader{Revision: 2},
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+ Created: false,
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+ Events: []*storagepb.Event{
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+ {
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+ Type: storagepb.PUT,
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+ Kv: &storagepb.KeyValue{Key: []byte("fooLong"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 2, Version: 1},
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+ },
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+ },
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+ },
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+ },
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+ },
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+ // watch the prefix, non-matching
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+ {
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+ []string{"foo"},
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+ &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
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+ CreateRequest: &pb.WatchCreateRequest{
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+ Prefix: []byte("helloworld")}}},
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+
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+ []*pb.WatchResponse{
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+ {
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+ Header: &pb.ResponseHeader{Revision: 1},
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+ Created: true,
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+ },
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+ },
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+ },
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+ // multiple puts, one watcher with matching key
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+ {
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+ []string{"foo", "foo", "foo"},
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+ &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
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+ CreateRequest: &pb.WatchCreateRequest{
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+ Key: []byte("foo")}}},
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+
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+ []*pb.WatchResponse{
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+ {
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+ Header: &pb.ResponseHeader{Revision: 1},
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+ Created: true,
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+ },
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+ {
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+ Header: &pb.ResponseHeader{Revision: 2},
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+ Created: false,
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+ Events: []*storagepb.Event{
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+ {
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+ Type: storagepb.PUT,
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+ Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 2, Version: 1},
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+ },
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+ },
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+ },
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+ {
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+ Header: &pb.ResponseHeader{Revision: 3},
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+ Created: false,
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+ Events: []*storagepb.Event{
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+ {
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+ Type: storagepb.PUT,
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+ Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 3, Version: 2},
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+ },
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+ },
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+ },
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+ {
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+ Header: &pb.ResponseHeader{Revision: 4},
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+ Created: false,
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+ Events: []*storagepb.Event{
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+ {
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+ Type: storagepb.PUT,
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+ Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 4, Version: 3},
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+ },
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+ },
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+ },
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+ },
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+ },
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+ // multiple puts, one watcher with matching prefix
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+ {
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+ []string{"foo", "foo", "foo"},
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+ &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
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+ CreateRequest: &pb.WatchCreateRequest{
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+ Prefix: []byte("foo")}}},
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+
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+ []*pb.WatchResponse{
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+ {
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+ Header: &pb.ResponseHeader{Revision: 1},
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+ Created: true,
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+ },
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+ {
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+ Header: &pb.ResponseHeader{Revision: 2},
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+ Created: false,
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+ Events: []*storagepb.Event{
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+ {
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+ Type: storagepb.PUT,
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+ Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 2, Version: 1},
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+ },
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+ },
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+ },
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+ {
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+ Header: &pb.ResponseHeader{Revision: 3},
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+ Created: false,
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+ Events: []*storagepb.Event{
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+ {
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+ Type: storagepb.PUT,
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+ Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 3, Version: 2},
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+ },
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+ },
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+ },
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+ {
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+ Header: &pb.ResponseHeader{Revision: 4},
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+ Created: false,
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+ Events: []*storagepb.Event{
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+ {
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+ Type: storagepb.PUT,
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+ Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 4, Version: 3},
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+ },
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+ },
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+ },
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+ },
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+ },
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+ }
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+
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+ for i, tt := range tests {
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+ clus := NewClusterV3(t, &ClusterConfig{Size: 3})
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+
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+ wAPI := clus.RandClient().Watch
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+ ctx, cancel := context.WithCancel(context.Background())
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+ defer cancel()
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+ wStream, err := wAPI.Watch(ctx)
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+ if err != nil {
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+ t.Fatalf("#%d: wAPI.Watch error: %v", i, err)
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+ }
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+
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+ if err := wStream.Send(tt.watchRequest); err != nil {
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+ t.Fatalf("#%d: wStream.Send error: %v", i, err)
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+ }
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+
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+ go func() {
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+ for _, k := range tt.putKeys {
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+ kvc := clus.RandClient().KV
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+ req := &pb.PutRequest{Key: []byte(k), Value: []byte("bar")}
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+ if _, err := kvc.Put(context.TODO(), req); err != nil {
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+ t.Fatalf("#%d: couldn't put key (%v)", i, err)
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+ }
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+ }
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+ }()
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+
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+ var createdWatchId int64
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+ for j, wresp := range tt.wresps {
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+ resp, err := wStream.Recv()
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+ if err != nil {
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+ t.Errorf("#%d.%d: wStream.Recv error: %v", i, j, err)
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+ }
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+
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+ if resp.Header == nil {
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+ t.Fatalf("#%d.%d: unexpected nil resp.Header", i, j)
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+ }
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+ if resp.Header.Revision != wresp.Header.Revision {
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+ t.Errorf("#%d.%d: resp.Header.Revision got = %d, want = %d", i, j, resp.Header.Revision, wresp.Header.Revision)
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+ }
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+
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+ if wresp.Created != resp.Created {
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+ t.Errorf("#%d.%d: resp.Created got = %v, want = %v", i, j, resp.Created, wresp.Created)
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+ }
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+ if resp.Created {
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+ createdWatchId = resp.WatchId
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+ }
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+ if resp.WatchId != createdWatchId {
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+ t.Errorf("#%d.%d: resp.WatchId got = %d, want = %d", i, j, resp.WatchId, createdWatchId)
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+ }
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+
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+ if !reflect.DeepEqual(resp.Events, wresp.Events) {
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+ t.Errorf("#%d.%d: resp.Events got = %+v, want = %+v", i, j, resp.Events, wresp.Events)
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+ }
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+ }
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+
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+ rok, nr := WaitResponse(wStream, 1*time.Second)
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+ if !rok {
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+ t.Errorf("unexpected pb.WatchResponse is received %+v", nr)
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+ }
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+
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+ // can't defer because tcp ports will be in use
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+ clus.Terminate(t)
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+ }
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+}
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+
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+// TestV3WatchCancelSynced tests Watch APIs cancellation from synced map.
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+func TestV3WatchCancelSynced(t *testing.T) {
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+ defer testutil.AfterTest(t)
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+ testV3WatchCancel(t, 0)
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+}
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+
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+// TestV3WatchCancelUnsynced tests Watch APIs cancellation from unsynced map.
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+func TestV3WatchCancelUnsynced(t *testing.T) {
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+ defer testutil.AfterTest(t)
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+ testV3WatchCancel(t, 1)
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+}
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+
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+func testV3WatchCancel(t *testing.T, startRev int64) {
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+ clus := NewClusterV3(t, &ClusterConfig{Size: 3})
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+
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+ ctx, cancel := context.WithCancel(context.Background())
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+ defer cancel()
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+ wStream, errW := clus.RandClient().Watch.Watch(ctx)
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+ if errW != nil {
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+ t.Fatalf("wAPI.Watch error: %v", errW)
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+ }
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+
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+ wreq := &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
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+ CreateRequest: &pb.WatchCreateRequest{
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+ Key: []byte("foo"), StartRevision: startRev}}}
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+ if err := wStream.Send(wreq); err != nil {
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+ t.Fatalf("wStream.Send error: %v", err)
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+ }
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+
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+ wresp, errR := wStream.Recv()
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+ if errR != nil {
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+ t.Errorf("wStream.Recv error: %v", errR)
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+ }
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+ if !wresp.Created {
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+ t.Errorf("wresp.Created got = %v, want = true", wresp.Created)
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+ }
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+
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+ creq := &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CancelRequest{
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+ CancelRequest: &pb.WatchCancelRequest{
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+ WatchId: wresp.WatchId}}}
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+ if err := wStream.Send(creq); err != nil {
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+ t.Fatalf("wStream.Send error: %v", err)
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+ }
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+
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+ cresp, err := wStream.Recv()
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+ if err != nil {
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+ t.Errorf("wStream.Recv error: %v", err)
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+ }
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+ if !cresp.Canceled {
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+ t.Errorf("cresp.Canceled got = %v, want = true", cresp.Canceled)
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+ }
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+
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+ kvc := clus.RandClient().KV
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+ if _, err := kvc.Put(context.TODO(), &pb.PutRequest{Key: []byte("foo"), Value: []byte("bar")}); err != nil {
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+ t.Errorf("couldn't put key (%v)", err)
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+ }
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+
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+ // watch got canceled, so this should block
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+ rok, nr := WaitResponse(wStream, 1*time.Second)
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+ if !rok {
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+ t.Errorf("unexpected pb.WatchResponse is received %+v", nr)
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+ }
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+
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+ clus.Terminate(t)
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+}
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+
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+func TestV3WatchMultipleWatchersSynced(t *testing.T) {
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+ defer testutil.AfterTest(t)
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+ testV3WatchMultipleWatchers(t, 0)
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+}
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+
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+func TestV3WatchMultipleWatchersUnsynced(t *testing.T) {
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+ defer testutil.AfterTest(t)
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+ testV3WatchMultipleWatchers(t, 1)
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+}
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+
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+// testV3WatchMultipleWatchers tests multiple watchers on the same key
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+// and one watcher with matching prefix. It first puts the key
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+// that matches all watchers, and another key that matches only
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+// one watcher to test if it receives expected events.
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+func testV3WatchMultipleWatchers(t *testing.T, startRev int64) {
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+ clus := NewClusterV3(t, &ClusterConfig{Size: 3})
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+ kvc := clus.RandClient().KV
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+
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+ ctx, cancel := context.WithCancel(context.Background())
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+ defer cancel()
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+ wStream, errW := clus.RandClient().Watch.Watch(ctx)
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+ if errW != nil {
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+ t.Fatalf("wAPI.Watch error: %v", errW)
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+ }
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+
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+ watchKeyN := 4
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+ for i := 0; i < watchKeyN+1; i++ {
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+ var wreq *pb.WatchRequest
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+ if i < watchKeyN {
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+ wreq = &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
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+ CreateRequest: &pb.WatchCreateRequest{
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+ Key: []byte("foo"), StartRevision: startRev}}}
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+ } else {
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+ wreq = &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
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+ CreateRequest: &pb.WatchCreateRequest{
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+ Prefix: []byte("fo"), StartRevision: startRev}}}
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+ }
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+ if err := wStream.Send(wreq); err != nil {
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+ t.Fatalf("wStream.Send error: %v", err)
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+ }
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+ }
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+
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+ ids := make(map[int64]struct{})
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+ for i := 0; i < watchKeyN+1; i++ {
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+ wresp, err := wStream.Recv()
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+ if err != nil {
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+ t.Fatalf("wStream.Recv error: %v", err)
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+ }
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+ if !wresp.Created {
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+ t.Fatalf("wresp.Created got = %v, want = true", wresp.Created)
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+ }
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+ ids[wresp.WatchId] = struct{}{}
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+ }
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+
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+ if _, err := kvc.Put(context.TODO(), &pb.PutRequest{Key: []byte("foo"), Value: []byte("bar")}); err != nil {
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+ t.Fatalf("couldn't put key (%v)", err)
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+ }
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+
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+ for i := 0; i < watchKeyN+1; i++ {
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+ wresp, err := wStream.Recv()
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+ if err != nil {
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+ t.Fatalf("wStream.Recv error: %v", err)
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+ }
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+ if _, ok := ids[wresp.WatchId]; !ok {
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+ t.Errorf("watchId %d is not created!", wresp.WatchId)
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+ } else {
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+ delete(ids, wresp.WatchId)
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+ }
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+ if len(wresp.Events) == 0 {
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+ t.Errorf("#%d: no events received", i)
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+ }
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+ for _, ev := range wresp.Events {
|
|
|
+ if string(ev.Kv.Key) != "foo" {
|
|
|
+ t.Errorf("ev.Kv.Key got = %s, want = foo", ev.Kv.Key)
|
|
|
+ }
|
|
|
+ if string(ev.Kv.Value) != "bar" {
|
|
|
+ t.Errorf("ev.Kv.Value got = %s, want = bar", ev.Kv.Value)
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ // now put one key that has only one matching watcher
|
|
|
+ if _, err := kvc.Put(context.TODO(), &pb.PutRequest{Key: []byte("fo"), Value: []byte("bar")}); err != nil {
|
|
|
+ t.Fatalf("couldn't put key (%v)", err)
|
|
|
+ }
|
|
|
+ wresp, err := wStream.Recv()
|
|
|
+ if err != nil {
|
|
|
+ t.Errorf("wStream.Recv error: %v", err)
|
|
|
+ }
|
|
|
+ if len(wresp.Events) != 1 {
|
|
|
+ t.Fatalf("len(wresp.Events) got = %d, want = 1", len(wresp.Events))
|
|
|
+ }
|
|
|
+ if string(wresp.Events[0].Kv.Key) != "fo" {
|
|
|
+ t.Errorf("wresp.Events[0].Kv.Key got = %s, want = fo", wresp.Events[0].Kv.Key)
|
|
|
+ }
|
|
|
+
|
|
|
+ // now Recv should block because there is no more events coming
|
|
|
+ rok, nr := WaitResponse(wStream, 1*time.Second)
|
|
|
+ if !rok {
|
|
|
+ t.Errorf("unexpected pb.WatchResponse is received %+v", nr)
|
|
|
+ }
|
|
|
+
|
|
|
+ clus.Terminate(t)
|
|
|
+}
|
|
|
+
|
|
|
+func TestV3WatchMultipleEventsTxnSynced(t *testing.T) {
|
|
|
+ defer testutil.AfterTest(t)
|
|
|
+ testV3WatchMultipleEventsTxn(t, 0)
|
|
|
+}
|
|
|
+
|
|
|
+func TestV3WatchMultipleEventsTxnUnsynced(t *testing.T) {
|
|
|
+ defer testutil.AfterTest(t)
|
|
|
+ testV3WatchMultipleEventsTxn(t, 1)
|
|
|
+}
|
|
|
+
|
|
|
+// testV3WatchMultipleEventsTxn tests Watch APIs when it receives multiple events.
|
|
|
+func testV3WatchMultipleEventsTxn(t *testing.T, startRev int64) {
|
|
|
+ clus := NewClusterV3(t, &ClusterConfig{Size: 3})
|
|
|
+
|
|
|
+ ctx, cancel := context.WithCancel(context.Background())
|
|
|
+ defer cancel()
|
|
|
+ wStream, wErr := clus.RandClient().Watch.Watch(ctx)
|
|
|
+ if wErr != nil {
|
|
|
+ t.Fatalf("wAPI.Watch error: %v", wErr)
|
|
|
+ }
|
|
|
+
|
|
|
+ wreq := &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
|
|
|
+ CreateRequest: &pb.WatchCreateRequest{
|
|
|
+ Prefix: []byte("foo"), StartRevision: startRev}}}
|
|
|
+ if err := wStream.Send(wreq); err != nil {
|
|
|
+ t.Fatalf("wStream.Send error: %v", err)
|
|
|
+ }
|
|
|
+
|
|
|
+ kvc := clus.RandClient().KV
|
|
|
+ txn := pb.TxnRequest{}
|
|
|
+ for i := 0; i < 3; i++ {
|
|
|
+ ru := &pb.RequestUnion{}
|
|
|
+ ru.Request = &pb.RequestUnion_RequestPut{
|
|
|
+ RequestPut: &pb.PutRequest{
|
|
|
+ Key: []byte(fmt.Sprintf("foo%d", i)), Value: []byte("bar")}}
|
|
|
+ txn.Success = append(txn.Success, ru)
|
|
|
+ }
|
|
|
+
|
|
|
+ tresp, err := kvc.Txn(context.Background(), &txn)
|
|
|
+ if err != nil {
|
|
|
+ t.Fatalf("kvc.Txn error: %v", err)
|
|
|
+ }
|
|
|
+ if !tresp.Succeeded {
|
|
|
+ t.Fatalf("kvc.Txn failed: %+v", tresp)
|
|
|
+ }
|
|
|
+
|
|
|
+ events := []*storagepb.Event{}
|
|
|
+ for len(events) < 3 {
|
|
|
+ resp, err := wStream.Recv()
|
|
|
+ if err != nil {
|
|
|
+ t.Errorf("wStream.Recv error: %v", err)
|
|
|
+ }
|
|
|
+ if resp.Created {
|
|
|
+ continue
|
|
|
+ }
|
|
|
+ events = append(events, resp.Events...)
|
|
|
+ }
|
|
|
+ sort.Sort(eventsSortByKey(events))
|
|
|
+
|
|
|
+ wevents := []*storagepb.Event{
|
|
|
+ {
|
|
|
+ Type: storagepb.PUT,
|
|
|
+ Kv: &storagepb.KeyValue{Key: []byte("foo0"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 2, Version: 1},
|
|
|
+ },
|
|
|
+ {
|
|
|
+ Type: storagepb.PUT,
|
|
|
+ Kv: &storagepb.KeyValue{Key: []byte("foo1"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 2, Version: 1},
|
|
|
+ },
|
|
|
+ {
|
|
|
+ Type: storagepb.PUT,
|
|
|
+ Kv: &storagepb.KeyValue{Key: []byte("foo2"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 2, Version: 1},
|
|
|
+ },
|
|
|
+ }
|
|
|
+
|
|
|
+ if !reflect.DeepEqual(events, wevents) {
|
|
|
+ t.Errorf("events got = %+v, want = %+v", events, wevents)
|
|
|
+ }
|
|
|
+
|
|
|
+ rok, nr := WaitResponse(wStream, 1*time.Second)
|
|
|
+ if !rok {
|
|
|
+ t.Errorf("unexpected pb.WatchResponse is received %+v", nr)
|
|
|
+ }
|
|
|
+
|
|
|
+ // can't defer because tcp ports will be in use
|
|
|
+ clus.Terminate(t)
|
|
|
+}
|
|
|
+
|
|
|
+type eventsSortByKey []*storagepb.Event
|
|
|
+
|
|
|
+func (evs eventsSortByKey) Len() int { return len(evs) }
|
|
|
+func (evs eventsSortByKey) Swap(i, j int) { evs[i], evs[j] = evs[j], evs[i] }
|
|
|
+func (evs eventsSortByKey) Less(i, j int) bool { return bytes.Compare(evs[i].Kv.Key, evs[j].Kv.Key) < 0 }
|
|
|
+
|
|
|
+func TestV3WatchMultipleEventsPutUnsynced(t *testing.T) {
|
|
|
+ defer testutil.AfterTest(t)
|
|
|
+ clus := NewClusterV3(t, &ClusterConfig{Size: 3})
|
|
|
+ defer clus.Terminate(t)
|
|
|
+
|
|
|
+ kvc := clus.RandClient().KV
|
|
|
+
|
|
|
+ if _, err := kvc.Put(context.TODO(), &pb.PutRequest{Key: []byte("foo0"), Value: []byte("bar")}); err != nil {
|
|
|
+ t.Fatalf("couldn't put key (%v)", err)
|
|
|
+ }
|
|
|
+ if _, err := kvc.Put(context.TODO(), &pb.PutRequest{Key: []byte("foo1"), Value: []byte("bar")}); err != nil {
|
|
|
+ t.Fatalf("couldn't put key (%v)", err)
|
|
|
+ }
|
|
|
+
|
|
|
+ ctx, cancel := context.WithCancel(context.Background())
|
|
|
+ defer cancel()
|
|
|
+ wStream, wErr := clus.RandClient().Watch.Watch(ctx)
|
|
|
+ if wErr != nil {
|
|
|
+ t.Fatalf("wAPI.Watch error: %v", wErr)
|
|
|
+ }
|
|
|
+
|
|
|
+ wreq := &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
|
|
|
+ CreateRequest: &pb.WatchCreateRequest{
|
|
|
+ Prefix: []byte("foo"), StartRevision: 1}}}
|
|
|
+ if err := wStream.Send(wreq); err != nil {
|
|
|
+ t.Fatalf("wStream.Send error: %v", err)
|
|
|
+ }
|
|
|
+
|
|
|
+ if _, err := kvc.Put(context.TODO(), &pb.PutRequest{Key: []byte("foo0"), Value: []byte("bar")}); err != nil {
|
|
|
+ t.Fatalf("couldn't put key (%v)", err)
|
|
|
+ }
|
|
|
+ if _, err := kvc.Put(context.TODO(), &pb.PutRequest{Key: []byte("foo1"), Value: []byte("bar")}); err != nil {
|
|
|
+ t.Fatalf("couldn't put key (%v)", err)
|
|
|
+ }
|
|
|
+
|
|
|
+ allWevents := []*storagepb.Event{
|
|
|
+ {
|
|
|
+ Type: storagepb.PUT,
|
|
|
+ Kv: &storagepb.KeyValue{Key: []byte("foo0"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 2, Version: 1},
|
|
|
+ },
|
|
|
+ {
|
|
|
+ Type: storagepb.PUT,
|
|
|
+ Kv: &storagepb.KeyValue{Key: []byte("foo1"), Value: []byte("bar"), CreateRevision: 3, ModRevision: 3, Version: 1},
|
|
|
+ },
|
|
|
+ {
|
|
|
+ Type: storagepb.PUT,
|
|
|
+ Kv: &storagepb.KeyValue{Key: []byte("foo0"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 4, Version: 2},
|
|
|
+ },
|
|
|
+ {
|
|
|
+ Type: storagepb.PUT,
|
|
|
+ Kv: &storagepb.KeyValue{Key: []byte("foo1"), Value: []byte("bar"), CreateRevision: 3, ModRevision: 5, Version: 2},
|
|
|
+ },
|
|
|
+ }
|
|
|
+
|
|
|
+ events := []*storagepb.Event{}
|
|
|
+ for len(events) < 4 {
|
|
|
+ resp, err := wStream.Recv()
|
|
|
+ if err != nil {
|
|
|
+ t.Errorf("wStream.Recv error: %v", err)
|
|
|
+ }
|
|
|
+ if resp.Created {
|
|
|
+ continue
|
|
|
+ }
|
|
|
+ events = append(events, resp.Events...)
|
|
|
+ // if PUT requests are committed by now, first receive would return
|
|
|
+ // multiple events, but if not, it returns a single event. In SSD,
|
|
|
+ // it should return 4 events at once.
|
|
|
+ }
|
|
|
+
|
|
|
+ if !reflect.DeepEqual(events, allWevents) {
|
|
|
+ t.Errorf("events got = %+v, want = %+v", events, allWevents)
|
|
|
+ }
|
|
|
+
|
|
|
+ rok, nr := WaitResponse(wStream, 1*time.Second)
|
|
|
+ if !rok {
|
|
|
+ t.Errorf("unexpected pb.WatchResponse is received %+v", nr)
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+func TestV3WatchMultipleStreamsSynced(t *testing.T) {
|
|
|
+ defer testutil.AfterTest(t)
|
|
|
+ testV3WatchMultipleStreams(t, 0)
|
|
|
+}
|
|
|
+
|
|
|
+func TestV3WatchMultipleStreamsUnsynced(t *testing.T) {
|
|
|
+ defer testutil.AfterTest(t)
|
|
|
+ testV3WatchMultipleStreams(t, 1)
|
|
|
+}
|
|
|
+
|
|
|
+// testV3WatchMultipleStreams tests multiple watchers on the same key on multiple streams.
|
|
|
+func testV3WatchMultipleStreams(t *testing.T, startRev int64) {
|
|
|
+ clus := NewClusterV3(t, &ClusterConfig{Size: 3})
|
|
|
+ wAPI := clus.RandClient().Watch
|
|
|
+ kvc := clus.RandClient().KV
|
|
|
+
|
|
|
+ streams := make([]pb.Watch_WatchClient, 5)
|
|
|
+ for i := range streams {
|
|
|
+ ctx, cancel := context.WithCancel(context.Background())
|
|
|
+ defer cancel()
|
|
|
+ wStream, errW := wAPI.Watch(ctx)
|
|
|
+ if errW != nil {
|
|
|
+ t.Fatalf("wAPI.Watch error: %v", errW)
|
|
|
+ }
|
|
|
+ wreq := &pb.WatchRequest{RequestUnion: &pb.WatchRequest_CreateRequest{
|
|
|
+ CreateRequest: &pb.WatchCreateRequest{
|
|
|
+ Key: []byte("foo"), StartRevision: startRev}}}
|
|
|
+ if err := wStream.Send(wreq); err != nil {
|
|
|
+ t.Fatalf("wStream.Send error: %v", err)
|
|
|
+ }
|
|
|
+ streams[i] = wStream
|
|
|
+ }
|
|
|
+
|
|
|
+ for _, wStream := range streams {
|
|
|
+ wresp, err := wStream.Recv()
|
|
|
+ if err != nil {
|
|
|
+ t.Fatalf("wStream.Recv error: %v", err)
|
|
|
+ }
|
|
|
+ if !wresp.Created {
|
|
|
+ t.Fatalf("wresp.Created got = %v, want = true", wresp.Created)
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if _, err := kvc.Put(context.TODO(), &pb.PutRequest{Key: []byte("foo"), Value: []byte("bar")}); err != nil {
|
|
|
+ t.Fatalf("couldn't put key (%v)", err)
|
|
|
+ }
|
|
|
+
|
|
|
+ var wg sync.WaitGroup
|
|
|
+ wg.Add(len(streams))
|
|
|
+ wevents := []*storagepb.Event{
|
|
|
+ {
|
|
|
+ Type: storagepb.PUT,
|
|
|
+ Kv: &storagepb.KeyValue{Key: []byte("foo"), Value: []byte("bar"), CreateRevision: 2, ModRevision: 2, Version: 1},
|
|
|
+ },
|
|
|
+ }
|
|
|
+ for i := range streams {
|
|
|
+ go func(i int) {
|
|
|
+ defer wg.Done()
|
|
|
+ wStream := streams[i]
|
|
|
+ wresp, err := wStream.Recv()
|
|
|
+ if err != nil {
|
|
|
+ t.Fatalf("wStream.Recv error: %v", err)
|
|
|
+ }
|
|
|
+ if wresp.WatchId != 0 {
|
|
|
+ t.Errorf("watchId got = %d, want = 0", wresp.WatchId)
|
|
|
+ }
|
|
|
+ if !reflect.DeepEqual(wresp.Events, wevents) {
|
|
|
+ t.Errorf("wresp.Events got = %+v, want = %+v", wresp.Events, wevents)
|
|
|
+ }
|
|
|
+ // now Recv should block because there is no more events coming
|
|
|
+ rok, nr := WaitResponse(wStream, 1*time.Second)
|
|
|
+ if !rok {
|
|
|
+ t.Errorf("unexpected pb.WatchResponse is received %+v", nr)
|
|
|
+ }
|
|
|
+ }(i)
|
|
|
+ }
|
|
|
+ wg.Wait()
|
|
|
+
|
|
|
+ clus.Terminate(t)
|
|
|
+}
|
|
|
+
|
|
|
+// WaitResponse waits on the given stream for given duration.
|
|
|
+// If there is no more events, true and a nil response will be
|
|
|
+// returned closing the WatchClient stream. Or the response will
|
|
|
+// be returned.
|
|
|
+func WaitResponse(wc pb.Watch_WatchClient, timeout time.Duration) (bool, *pb.WatchResponse) {
|
|
|
+ rCh := make(chan *pb.WatchResponse)
|
|
|
+ go func() {
|
|
|
+ resp, _ := wc.Recv()
|
|
|
+ rCh <- resp
|
|
|
+ }()
|
|
|
+ select {
|
|
|
+ case nr := <-rCh:
|
|
|
+ return false, nr
|
|
|
+ case <-time.After(timeout):
|
|
|
+ }
|
|
|
+ wc.CloseSend()
|
|
|
+ rv, ok := <-rCh
|
|
|
+ if rv != nil || !ok {
|
|
|
+ return false, rv
|
|
|
+ }
|
|
|
+ return true, nil
|
|
|
+}
|
Xiang Li