forked from googleapis/google-cloud-go
/
fake_test.go
1513 lines (1366 loc) · 44.4 KB
/
fake_test.go
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// Copyright 2017 Google LLC
//
// 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 pstest
import (
"bytes"
"context"
"fmt"
"io"
"math/rand"
"net"
"reflect"
"strings"
"sync"
"testing"
"time"
"cloud.google.com/go/internal/testutil"
pb "google.golang.org/genproto/googleapis/pubsub/v1"
"google.golang.org/genproto/protobuf/field_mask"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/types/known/durationpb"
"google.golang.org/protobuf/types/known/timestamppb"
)
func TestNewServerWithPort(t *testing.T) {
// Allocate an available port to use with NewServerWithPort and then close it so it's available.
// Note: There is no guarantee that the port does not become used between closing
// the listener and creating the new server with NewServerWithPort, but the chances are
// very small.
l, err := net.Listen("tcp", ":0")
if err != nil {
t.Fatal(err)
}
port := l.Addr().(*net.TCPAddr).Port
l.Close()
// Pass a non 0 port to demonstrate we can pass a hardcoded port for the server to listen on
srv := NewServerWithPort(port)
if err != nil {
t.Fatal(err)
}
defer srv.Close()
conn, err := grpc.Dial(srv.Addr, grpc.WithInsecure())
if err != nil {
t.Fatal(err)
}
defer conn.Close()
}
func TestTopics(t *testing.T) {
pclient, sclient, server, cleanup := newFake(context.TODO(), t)
defer cleanup()
ctx := context.Background()
var topics []*pb.Topic
for i := 1; i < 3; i++ {
topics = append(topics, mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{
Name: fmt.Sprintf("projects/P/topics/T%d", i),
Labels: map[string]string{"num": fmt.Sprintf("%d", i)},
}))
}
if got, want := len(server.GServer.topics), len(topics); got != want {
t.Fatalf("got %d topics, want %d", got, want)
}
for _, top := range topics {
got, err := pclient.GetTopic(ctx, &pb.GetTopicRequest{Topic: top.Name})
if err != nil {
t.Fatal(err)
}
if !testutil.Equal(got, top) {
t.Errorf("\ngot %+v\nwant %+v", got, top)
}
}
res, err := pclient.ListTopics(ctx, &pb.ListTopicsRequest{Project: "projects/P"})
if err != nil {
t.Fatal(err)
}
if got, want := res.Topics, topics; !testutil.Equal(got, want) {
t.Errorf("\ngot %+v\nwant %+v", got, want)
}
for _, top := range topics {
if _, err := pclient.DeleteTopic(ctx, &pb.DeleteTopicRequest{Topic: top.Name}); err != nil {
t.Fatal(err)
}
}
if got, want := len(server.GServer.topics), 0; got != want {
t.Fatalf("got %d topics, want %d", got, want)
}
t.Run(`Given a topic that is used by a subscription as deadLetter,
When topic deleted,
Then error raised`, func(t *testing.T) {
var topics []*pb.Topic
for i := 1; i < 3; i++ {
topics = append(topics, mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{
Name: fmt.Sprintf("projects/P/topics/T%d", i),
Labels: map[string]string{"num": fmt.Sprintf("%d", i)},
}))
}
if got, want := len(server.GServer.topics), len(topics); got != want {
t.Fatalf("got %d topics, want %d", got, want)
}
s := mustCreateSubscription(ctx, t, sclient, &pb.Subscription{
Name: fmt.Sprintf("project/P/subscriptions/sub_with_deadLetter"),
Topic: topics[0].Name,
AckDeadlineSeconds: 10,
DeadLetterPolicy: &pb.DeadLetterPolicy{
DeadLetterTopic: topics[1].Name,
},
})
_, err := pclient.DeleteTopic(ctx, &pb.DeleteTopicRequest{
Topic: topics[1].Name,
})
expectedErr := status.Errorf(codes.FailedPrecondition, "topic %q used as deadLetter for %s", topics[1].Name, s.Name)
if err == nil || err.Error() != expectedErr.Error() {
t.Fatalf("returned a different error than the expected one. \nReceived '%s'; \nExpected: '%s'", err, expectedErr)
}
})
}
func TestSubscriptions(t *testing.T) {
pclient, sclient, server, cleanup := newFake(context.TODO(), t)
defer cleanup()
ctx := context.Background()
topic := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
var subs []*pb.Subscription
for i := 0; i < 3; i++ {
subs = append(subs, mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
Name: fmt.Sprintf("projects/P/subscriptions/S%d", i),
Topic: topic.Name,
AckDeadlineSeconds: int32(10 * (i + 1)),
}))
}
if got, want := len(server.GServer.subs), len(subs); got != want {
t.Fatalf("got %d subscriptions, want %d", got, want)
}
for _, s := range subs {
got, err := sclient.GetSubscription(ctx, &pb.GetSubscriptionRequest{Subscription: s.Name})
if err != nil {
t.Fatal(err)
}
if !testutil.Equal(got, s) {
t.Errorf("\ngot %+v\nwant %+v", got, s)
}
}
res, err := sclient.ListSubscriptions(ctx, &pb.ListSubscriptionsRequest{Project: "projects/P"})
if err != nil {
t.Fatal(err)
}
if got, want := res.Subscriptions, subs; !testutil.Equal(got, want) {
t.Errorf("\ngot %+v\nwant %+v", got, want)
}
res2, err := pclient.ListTopicSubscriptions(ctx, &pb.ListTopicSubscriptionsRequest{Topic: topic.Name})
if err != nil {
t.Fatal(err)
}
if got, want := len(res2.Subscriptions), len(subs); got != want {
t.Fatalf("got %d subs, want %d", got, want)
}
for i, got := range res2.Subscriptions {
want := subs[i].Name
if !testutil.Equal(got, want) {
t.Errorf("\ngot %+v\nwant %+v", got, want)
}
}
subToDetach := "projects/P/subscriptions/S0"
_, err = pclient.DetachSubscription(ctx, &pb.DetachSubscriptionRequest{
Subscription: subToDetach,
})
if err != nil {
t.Fatalf("attempted to detach sub %s, got error: %v", subToDetach, err)
}
for _, s := range subs {
if _, err := sclient.DeleteSubscription(ctx, &pb.DeleteSubscriptionRequest{Subscription: s.Name}); err != nil {
t.Fatal(err)
}
}
if got, want := len(server.GServer.subs), 0; got != want {
t.Fatalf("got %d subscriptions, want %d", got, want)
}
t.Run(`Given a subscription creation,
When called with a deadLetter topic that does not exist,
Then error returned`, func(t *testing.T) {
topic := mustCreateTopic(ctx, t, pclient, &pb.Topic{Name: "projects/P/topics/test"})
_, err := server.GServer.CreateSubscription(ctx, &pb.Subscription{
Name: "projects/P/subscriptions/test",
Topic: topic.Name,
AckDeadlineSeconds: 10,
DeadLetterPolicy: &pb.DeadLetterPolicy{
DeadLetterTopic: "projects/P/topics/nonexisting",
},
})
expectedErr := status.Errorf(codes.NotFound, "deadLetter topic \"projects/P/topics/nonexisting\"")
if err == nil || err.Error() != expectedErr.Error() {
t.Fatalf("expected subscription creation to fail with a specific err but it didn't. \nError: %s \nExepcted err: %s", err, expectedErr)
}
_, err = server.GServer.DeleteTopic(ctx, &pb.DeleteTopicRequest{
Topic: topic.Name,
})
if err != nil {
t.Fatalf("unexpected error during deleting topic")
}
})
}
func TestSubscriptionErrors(t *testing.T) {
_, sclient, _, cleanup := newFake(context.TODO(), t)
defer cleanup()
ctx := context.Background()
checkCode := func(err error, want codes.Code) {
t.Helper()
if status.Code(err) != want {
t.Errorf("got %v, want code %s", err, want)
}
}
_, err := sclient.GetSubscription(ctx, &pb.GetSubscriptionRequest{})
checkCode(err, codes.InvalidArgument)
_, err = sclient.GetSubscription(ctx, &pb.GetSubscriptionRequest{Subscription: "s"})
checkCode(err, codes.NotFound)
_, err = sclient.UpdateSubscription(ctx, &pb.UpdateSubscriptionRequest{})
checkCode(err, codes.InvalidArgument)
_, err = sclient.UpdateSubscription(ctx, &pb.UpdateSubscriptionRequest{Subscription: &pb.Subscription{}})
checkCode(err, codes.InvalidArgument)
_, err = sclient.UpdateSubscription(ctx, &pb.UpdateSubscriptionRequest{Subscription: &pb.Subscription{Name: "s"}})
checkCode(err, codes.NotFound)
_, err = sclient.DeleteSubscription(ctx, &pb.DeleteSubscriptionRequest{})
checkCode(err, codes.InvalidArgument)
_, err = sclient.DeleteSubscription(ctx, &pb.DeleteSubscriptionRequest{Subscription: "s"})
checkCode(err, codes.NotFound)
_, err = sclient.Acknowledge(ctx, &pb.AcknowledgeRequest{})
checkCode(err, codes.InvalidArgument)
_, err = sclient.Acknowledge(ctx, &pb.AcknowledgeRequest{Subscription: "s"})
checkCode(err, codes.NotFound)
_, err = sclient.ModifyAckDeadline(ctx, &pb.ModifyAckDeadlineRequest{})
checkCode(err, codes.InvalidArgument)
_, err = sclient.ModifyAckDeadline(ctx, &pb.ModifyAckDeadlineRequest{Subscription: "s"})
checkCode(err, codes.NotFound)
_, err = sclient.Pull(ctx, &pb.PullRequest{})
checkCode(err, codes.InvalidArgument)
_, err = sclient.Pull(ctx, &pb.PullRequest{Subscription: "s"})
checkCode(err, codes.NotFound)
_, err = sclient.Seek(ctx, &pb.SeekRequest{})
checkCode(err, codes.InvalidArgument)
srt := &pb.SeekRequest_Time{Time: timestamppb.Now()}
_, err = sclient.Seek(ctx, &pb.SeekRequest{Target: srt})
checkCode(err, codes.InvalidArgument)
_, err = sclient.Seek(ctx, &pb.SeekRequest{Target: srt, Subscription: "s"})
checkCode(err, codes.NotFound)
}
func TestSubscriptionDeadLetter(t *testing.T) {
_, _, server, cleanup := newFake(context.TODO(), t)
defer cleanup()
ctx := context.Background()
topic, err := server.GServer.CreateTopic(ctx, &pb.Topic{
Name: "projects/P/topics/in",
})
if err != nil {
t.Fatalf("failed to create in topic")
}
deadLetterTopic, err := server.GServer.CreateTopic(ctx, &pb.Topic{
Name: "projects/P/topics/deadLetter",
})
if err != nil {
t.Fatalf("failed to create deadLetter topic")
}
retries := 3
sub, err := server.GServer.CreateSubscription(ctx, &pb.Subscription{
Name: "projects/P/subscriptions/S",
Topic: topic.Name,
AckDeadlineSeconds: 10,
DeadLetterPolicy: &pb.DeadLetterPolicy{
DeadLetterTopic: deadLetterTopic.Name,
MaxDeliveryAttempts: int32(retries),
},
})
if err != nil {
t.Fatalf("failed to create subscription")
}
dlSub, err := server.GServer.CreateSubscription(ctx, &pb.Subscription{
Name: "projects/P/subscriptions/SD",
Topic: deadLetterTopic.Name,
AckDeadlineSeconds: 10,
})
if err != nil {
t.Fatalf("failed to create subscription")
}
messageData := []byte("message data")
_, err = server.GServer.Publish(ctx, &pb.PublishRequest{
Topic: topic.Name,
Messages: []*pb.PubsubMessage{
{
Data: messageData,
},
},
})
if err != nil {
t.Fatalf("failed to publish message")
}
rand.Seed(time.Now().UTC().UnixNano())
maxAttempts := rand.Intn(5) + retries
for i := 0; i < maxAttempts; i++ {
pull, err := server.GServer.Pull(ctx, &pb.PullRequest{
Subscription: sub.Name,
MaxMessages: 10,
})
if err != nil {
t.Fatalf("failed during pull")
}
if i < retries {
if len(pull.ReceivedMessages) != 1 {
t.Fatalf("expected 1 message received a different number %d", len(pull.ReceivedMessages))
}
for _, m := range pull.ReceivedMessages {
if int32(i) != m.DeliveryAttempt {
t.Fatalf("message delivery attempt not the expected one. expected: %d, actual: %d", i, m.DeliveryAttempt)
}
_, err := server.GServer.ModifyAckDeadline(ctx, &pb.ModifyAckDeadlineRequest{
Subscription: sub.Name,
AckIds: []string{m.AckId},
AckDeadlineSeconds: 0,
})
if err != nil {
t.Fatalf("failed to modify ack deadline")
}
}
} else {
if len(pull.ReceivedMessages) > 0 {
t.Fatalf("received a non empty list of messages %d", len(pull.ReceivedMessages))
}
}
}
dlPull, err := server.GServer.Pull(ctx, &pb.PullRequest{
Subscription: dlSub.Name,
MaxMessages: 10,
})
if err != nil {
t.Fatalf("failed during pulling from deadLetter sub")
}
if len(dlPull.ReceivedMessages) != 1 {
t.Fatalf("expected 1 message received a different number %d", len(dlPull.ReceivedMessages))
}
receivedMessage := dlPull.ReceivedMessages[0]
if bytes.Compare(receivedMessage.Message.Data, messageData) != 0 {
t.Fatalf("unexpected message received from deadLetter")
}
if receivedMessage.DeliveryAttempt > 0 {
t.Fatalf("message sent to deadLetter should not have the deliveryAttempt value from the original subscription message")
}
_, err = server.GServer.Acknowledge(ctx, &pb.AcknowledgeRequest{
Subscription: dlSub.Name,
AckIds: []string{receivedMessage.GetAckId()},
})
if err != nil {
t.Fatalf("failed to acknowledge message from deadLetter")
}
for _, s := range []string{"projects/P/subscriptions/S", "projects/P/subscriptions/SD"} {
_, err = server.GServer.DeleteSubscription(ctx, &pb.DeleteSubscriptionRequest{
Subscription: s,
})
if err != nil {
t.Fatalf("failed to delete subscription %s; error: %s", s, err)
}
}
for _, delTopic := range []string{"projects/P/topics/in", "projects/P/topics/deadLetter"} {
_, err = server.GServer.DeleteTopic(ctx, &pb.DeleteTopicRequest{
Topic: delTopic,
})
if err != nil {
t.Fatalf("failed to delete topic %s; error: %s", delTopic, err)
}
}
if got, want := len(server.GServer.subs), 0; got != want {
t.Fatalf("got %d subscriptions, want %d", got, want)
}
if got, want := len(server.GServer.topics), 0; got != want {
t.Fatalf("got %d topics, want %d", got, want)
}
}
func TestPublish(t *testing.T) {
s := NewServer()
defer s.Close()
var ids []string
for i := 0; i < 3; i++ {
ids = append(ids, s.Publish("projects/p/topics/t", []byte("hello"), nil))
}
s.Wait()
ms := s.Messages()
if got, want := len(ms), len(ids); got != want {
t.Errorf("got %d messages, want %d", got, want)
}
for i, id := range ids {
if got, want := ms[i].ID, id; got != want {
t.Errorf("got %s, want %s", got, want)
}
}
m := s.Message(ids[1])
if m == nil {
t.Error("got nil, want a message")
}
}
func TestPublishOrdered(t *testing.T) {
s := NewServer()
defer s.Close()
const orderingKey = "ordering-key"
var ids []string
for i := 0; i < 3; i++ {
ids = append(ids, s.PublishOrdered("projects/p/topics/t", []byte("hello"), nil, orderingKey))
}
s.Wait()
ms := s.Messages()
if got, want := len(ms), len(ids); got != want {
t.Errorf("got %d messages, want %d", got, want)
}
for i, id := range ids {
if got, want := ms[i].ID, id; got != want {
t.Errorf("got %s, want %s", got, want)
}
if got, want := ms[i].OrderingKey, orderingKey; got != want {
t.Errorf("got %s, want %s", got, want)
}
}
m := s.Message(ids[1])
if m == nil {
t.Error("got nil, want a message")
}
}
func TestClearMessages(t *testing.T) {
s := NewServer()
defer s.Close()
for i := 0; i < 3; i++ {
s.Publish("projects/p/topics/t", []byte("hello"), nil)
}
s.Wait()
msgs := s.Messages()
if got, want := len(msgs), 3; got != want {
t.Errorf("got %d messages, want %d", got, want)
}
s.ClearMessages()
msgs = s.Messages()
if got, want := len(msgs), 0; got != want {
t.Errorf("got %d messages, want %d", got, want)
}
}
// Note: this sets the fake's "now" time, so it is sensitive to concurrent changes to "now".
func publish(t *testing.T, pclient pb.PublisherClient, topic *pb.Topic, messages []*pb.PubsubMessage) map[string]*pb.PubsubMessage {
pubTime := time.Now()
now.Store(func() time.Time { return pubTime })
defer func() { now.Store(time.Now) }()
res, err := pclient.Publish(context.Background(), &pb.PublishRequest{
Topic: topic.Name,
Messages: messages,
})
if err != nil {
t.Fatal(err)
}
tsPubTime := timestamppb.New(pubTime)
want := map[string]*pb.PubsubMessage{}
for i, id := range res.MessageIds {
want[id] = &pb.PubsubMessage{
Data: messages[i].Data,
Attributes: messages[i].Attributes,
MessageId: id,
PublishTime: tsPubTime,
}
}
return want
}
func TestPull(t *testing.T) {
pclient, sclient, _, cleanup := newFake(context.TODO(), t)
defer cleanup()
top := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
sub := mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S",
Topic: top.Name,
AckDeadlineSeconds: 10,
})
want := publish(t, pclient, top, []*pb.PubsubMessage{
{Data: []byte("d1")},
{Data: []byte("d2")},
{Data: []byte("d3")},
})
got := pubsubMessages(pullN(context.TODO(), t, len(want), sclient, sub))
if diff := testutil.Diff(got, want); diff != "" {
t.Error(diff)
}
res, err := sclient.Pull(context.Background(), &pb.PullRequest{Subscription: sub.Name})
if err != nil {
t.Fatal(err)
}
if len(res.ReceivedMessages) != 0 {
t.Errorf("got %d messages, want zero", len(res.ReceivedMessages))
}
}
func TestStreamingPull(t *testing.T) {
// A simple test of streaming pull.
pclient, sclient, _, cleanup := newFake(context.TODO(), t)
defer cleanup()
top := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
sub := mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S",
Topic: top.Name,
AckDeadlineSeconds: 10,
})
want := publish(t, pclient, top, []*pb.PubsubMessage{
{Data: []byte("d1")},
{Data: []byte("d2")},
{Data: []byte("d3")},
})
got := pubsubMessages(streamingPullN(context.TODO(), t, len(want), sclient, sub))
if diff := testutil.Diff(got, want); diff != "" {
t.Error(diff)
}
}
// This test acks each message as it arrives and makes sure we don't see dups.
func TestStreamingPullAck(t *testing.T) {
minAckDeadlineSecs = 1
pclient, sclient, _, cleanup := newFake(context.TODO(), t)
defer cleanup()
top := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
sub := mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S",
Topic: top.Name,
AckDeadlineSeconds: 1,
})
_ = publish(t, pclient, top, []*pb.PubsubMessage{
{Data: []byte("d1")},
{Data: []byte("d2")},
{Data: []byte("d3")},
})
got := map[string]bool{}
ctx, cancel := context.WithCancel(context.Background())
spc := mustStartStreamingPull(ctx, t, sclient, sub)
time.AfterFunc(time.Duration(2*minAckDeadlineSecs)*time.Second, cancel)
for i := 0; i < 4; i++ {
res, err := spc.Recv()
if err == io.EOF {
break
}
if err != nil {
if status.Code(err) == codes.Canceled {
break
}
t.Fatal(err)
}
if i == 3 {
t.Fatal("expected to only see 3 messages, got 4")
}
req := &pb.StreamingPullRequest{}
for _, m := range res.ReceivedMessages {
if got[m.Message.MessageId] {
t.Fatal("duplicate message")
}
got[m.Message.MessageId] = true
req.AckIds = append(req.AckIds, m.AckId)
}
if err := spc.Send(req); err != nil {
t.Fatal(err)
}
}
}
func TestAcknowledge(t *testing.T) {
ctx := context.Background()
pclient, sclient, srv, cleanup := newFake(context.TODO(), t)
defer cleanup()
top := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
sub := mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S",
Topic: top.Name,
AckDeadlineSeconds: 10,
})
publish(t, pclient, top, []*pb.PubsubMessage{
{Data: []byte("d1")},
{Data: []byte("d2")},
{Data: []byte("d3")},
})
msgs := streamingPullN(context.TODO(), t, 3, sclient, sub)
var ackIDs []string
for _, m := range msgs {
ackIDs = append(ackIDs, m.AckId)
}
if _, err := sclient.Acknowledge(ctx, &pb.AcknowledgeRequest{
Subscription: sub.Name,
AckIds: ackIDs,
}); err != nil {
t.Fatal(err)
}
smsgs := srv.Messages()
if got, want := len(smsgs), 3; got != want {
t.Fatalf("got %d messages, want %d", got, want)
}
for _, sm := range smsgs {
if sm.Acks != 1 {
t.Errorf("message %s: got %d acks, want 1", sm.ID, sm.Acks)
}
}
}
func TestModAck(t *testing.T) {
ctx := context.Background()
pclient, sclient, _, cleanup := newFake(context.TODO(), t)
defer cleanup()
top := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
sub := mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S",
Topic: top.Name,
AckDeadlineSeconds: 10,
})
publish(t, pclient, top, []*pb.PubsubMessage{
{Data: []byte("d1")},
{Data: []byte("d2")},
{Data: []byte("d3")},
})
msgs := streamingPullN(context.TODO(), t, 3, sclient, sub)
var ackIDs []string
for _, m := range msgs {
ackIDs = append(ackIDs, m.AckId)
}
if _, err := sclient.ModifyAckDeadline(ctx, &pb.ModifyAckDeadlineRequest{
Subscription: sub.Name,
AckIds: ackIDs,
AckDeadlineSeconds: 0,
}); err != nil {
t.Fatal(err)
}
// Having nacked all three messages, we should see them again.
msgs = streamingPullN(context.TODO(), t, 3, sclient, sub)
if got, want := len(msgs), 3; got != want {
t.Errorf("got %d messages, want %d", got, want)
}
}
func TestAckDeadline(t *testing.T) {
// Messages should be resent after they expire.
pclient, sclient, _, cleanup := newFake(context.TODO(), t)
defer cleanup()
minAckDeadlineSecs = 2
top := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
sub := mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S",
Topic: top.Name,
AckDeadlineSeconds: minAckDeadlineSecs,
})
_ = publish(t, pclient, top, []*pb.PubsubMessage{
{Data: []byte("d1")},
{Data: []byte("d2")},
{Data: []byte("d3")},
})
got := map[string]int{}
spc := mustStartStreamingPull(context.TODO(), t, sclient, sub)
// In 5 seconds the ack deadline will expire twice, so we should see each message
// exactly three times.
time.AfterFunc(5*time.Second, func() {
if err := spc.CloseSend(); err != nil {
t.Errorf("CloseSend: %v", err)
}
})
for {
res, err := spc.Recv()
if err == io.EOF {
break
}
if err != nil {
t.Fatal(err)
}
for _, m := range res.ReceivedMessages {
got[m.Message.MessageId]++
}
}
for id, n := range got {
if n != 3 {
t.Errorf("message %s: saw %d times, want 3", id, n)
}
}
}
func TestMultiSubs(t *testing.T) {
// Each subscription gets every message.
pclient, sclient, _, cleanup := newFake(context.TODO(), t)
defer cleanup()
top := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
sub1 := mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S1",
Topic: top.Name,
AckDeadlineSeconds: 10,
})
sub2 := mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S2",
Topic: top.Name,
AckDeadlineSeconds: 10,
})
want := publish(t, pclient, top, []*pb.PubsubMessage{
{Data: []byte("d1")},
{Data: []byte("d2")},
{Data: []byte("d3")},
})
got1 := pubsubMessages(streamingPullN(context.TODO(), t, len(want), sclient, sub1))
got2 := pubsubMessages(streamingPullN(context.TODO(), t, len(want), sclient, sub2))
if diff := testutil.Diff(got1, want); diff != "" {
t.Error(diff)
}
if diff := testutil.Diff(got2, want); diff != "" {
t.Error(diff)
}
}
// Messages are handed out to all streams of a subscription in a best-effort
// round-robin behavior. The fake server prefers to fail-fast onto another
// stream when one stream is already busy, though, so we're unable to test
// strict round robin behavior.
func TestMultiStreams(t *testing.T) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
pclient, sclient, _, cleanup := newFake(ctx, t)
defer cleanup()
top := mustCreateTopic(ctx, t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
sub := mustCreateSubscription(ctx, t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S",
Topic: top.Name,
AckDeadlineSeconds: 10,
})
st1 := mustStartStreamingPull(ctx, t, sclient, sub)
defer st1.CloseSend()
st1Received := make(chan struct{})
go func() {
_, err := st1.Recv()
if err != nil {
t.Error(err)
}
close(st1Received)
}()
st2 := mustStartStreamingPull(ctx, t, sclient, sub)
defer st2.CloseSend()
st2Received := make(chan struct{})
go func() {
_, err := st2.Recv()
if err != nil {
t.Error(err)
}
close(st2Received)
}()
publish(t, pclient, top, []*pb.PubsubMessage{
{Data: []byte("d1")},
{Data: []byte("d2")},
})
timeout := time.After(5 * time.Second)
select {
case <-timeout:
t.Fatal("timed out waiting for stream 1 to receive any message")
case <-st1Received:
}
select {
case <-timeout:
t.Fatal("timed out waiting for stream 1 to receive any message")
case <-st2Received:
}
}
func TestStreamingPullTimeout(t *testing.T) {
pclient, sclient, srv, cleanup := newFake(context.TODO(), t)
defer cleanup()
timeout := 200 * time.Millisecond
srv.SetStreamTimeout(timeout)
top := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
sub := mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S",
Topic: top.Name,
AckDeadlineSeconds: 10,
})
stream := mustStartStreamingPull(context.TODO(), t, sclient, sub)
time.Sleep(2 * timeout)
_, err := stream.Recv()
if err != io.EOF {
t.Errorf("got %v, want io.EOF", err)
}
}
func TestSeek(t *testing.T) {
pclient, sclient, _, cleanup := newFake(context.TODO(), t)
defer cleanup()
top := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
sub := mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S",
Topic: top.Name,
AckDeadlineSeconds: 10,
})
ts := timestamppb.Now()
_, err := sclient.Seek(context.Background(), &pb.SeekRequest{
Subscription: sub.Name,
Target: &pb.SeekRequest_Time{Time: ts},
})
if err != nil {
t.Errorf("Seeking: %v", err)
}
}
func TestTryDeliverMessage(t *testing.T) {
for _, test := range []struct {
availStreamIdx int
expectedOutIdx int
}{
{availStreamIdx: 0, expectedOutIdx: 0},
// Stream 1 will always be marked for deletion.
{availStreamIdx: 2, expectedOutIdx: 1}, // s0, s1 (deleted), s2, s3 becomes s0, s2, s3. So we expect outIdx=1.
{availStreamIdx: 3, expectedOutIdx: 2}, // s0, s1 (deleted), s2, s3 becomes s0, s2, s3. So we expect outIdx=2.
} {
top := newTopic(&pb.Topic{Name: "some-topic"})
sub := newSubscription(top, &sync.Mutex{}, time.Now, nil, &pb.Subscription{Name: "some-sub", Topic: "some-topic"})
done := make(chan struct{}, 1)
done <- struct{}{}
sub.streams = []*stream{{}, {done: done}, {}, {}}
msgc := make(chan *pb.ReceivedMessage, 1)
sub.streams[test.availStreamIdx].msgc = msgc
var d int
idx, ok := sub.tryDeliverMessage(&message{deliveries: &d}, 0, time.Now())
if !ok {
t.Fatalf("[avail=%d]: expected msg to be put on stream %d's channel, but it was not", test.availStreamIdx, test.expectedOutIdx)
}
if idx != test.expectedOutIdx {
t.Fatalf("[avail=%d]: expected msg to be put on stream %d, but it was put on %d", test.availStreamIdx, test.expectedOutIdx, idx)
}
select {
case <-msgc:
default:
t.Fatalf("[avail=%d]: expected msg to be put on stream %d's channel, but it was not", test.availStreamIdx, idx)
}
}
}
func TestTimeNowFunc(t *testing.T) {
s := NewServer()
defer s.Close()
timeFunc := func() time.Time {
t, _ := time.Parse(time.RFC3339, "2006-01-02T15:04:05Z")
return t
}
s.SetTimeNowFunc(timeFunc)
id := s.Publish("projects/p/topics/t", []byte("hello"), nil)
s.Wait()
m := s.Message(id)
if m == nil {
t.Fatalf("got nil, want a message")
}
if got, want := m.PublishTime, timeFunc(); got != want {
t.Fatalf("got %v, want %v", got, want)
}
}
func TestModAck_Race(t *testing.T) {
ctx := context.Background()
pclient, sclient, server, cleanup := newFake(ctx, t)
defer cleanup()
top := mustCreateTopic(ctx, t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
sub := mustCreateSubscription(ctx, t, sclient, &pb.Subscription{
Name: "projects/P/subscriptions/S",
Topic: top.Name,
AckDeadlineSeconds: 10,
})
publish(t, pclient, top, []*pb.PubsubMessage{
{Data: []byte("d1")},
{Data: []byte("d2")},
{Data: []byte("d3")},
})
msgs := streamingPullN(ctx, t, 3, sclient, sub)
var ackIDs []string
for _, m := range msgs {
ackIDs = append(ackIDs, m.AckId)
}
// Try to access m.Modacks while simultaneously calling ModifyAckDeadline
// so as to try and create a race condition.
// Invoke ModifyAckDeadline from the server rather than the client
// to increase replicability of simultaneous data access.
go func() {
req := &pb.ModifyAckDeadlineRequest{
Subscription: sub.Name,
AckIds: ackIDs,
AckDeadlineSeconds: 0,
}
server.GServer.ModifyAckDeadline(ctx, req)
}()
sm := server.Messages()
for _, m := range sm {
t.Logf("got modacks: %v\n", m.Modacks)
}
}
func TestUpdateDeadLetterPolicy(t *testing.T) {
pclient, sclient, _, cleanup := newFake(context.TODO(), t)
defer cleanup()
top := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
deadTop := mustCreateTopic(context.TODO(), t, pclient, &pb.Topic{Name: "projects/P/topics/TD"})
sub := mustCreateSubscription(context.TODO(), t, sclient, &pb.Subscription{
AckDeadlineSeconds: minAckDeadlineSecs,
Name: "projects/P/subscriptions/S",
Topic: top.Name,
DeadLetterPolicy: &pb.DeadLetterPolicy{
DeadLetterTopic: deadTop.Name,
MaxDeliveryAttempts: 5,
},
})
update := &pb.Subscription{
AckDeadlineSeconds: sub.AckDeadlineSeconds,
Name: sub.Name,
Topic: top.Name,
DeadLetterPolicy: &pb.DeadLetterPolicy{
DeadLetterTopic: deadTop.Name,
// update max delivery attempts
MaxDeliveryAttempts: 10,
},
}