435 lines
12 KiB
Go
435 lines
12 KiB
Go
// Copyright 2017 Google Inc. All Rights Reserved.
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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.
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package pstest
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import (
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"fmt"
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"io"
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"testing"
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"time"
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"github.com/golang/protobuf/ptypes"
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"cloud.google.com/go/internal/testutil"
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"golang.org/x/net/context"
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pb "google.golang.org/genproto/googleapis/pubsub/v1"
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"google.golang.org/grpc"
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)
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func TestTopics(t *testing.T) {
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pclient, _, server := newFake(t)
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ctx := context.Background()
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var topics []*pb.Topic
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for i := 1; i < 3; i++ {
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topics = append(topics, mustCreateTopic(t, pclient, &pb.Topic{
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Name: fmt.Sprintf("projects/P/topics/T%d", i),
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Labels: map[string]string{"num": fmt.Sprintf("%d", i)},
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}))
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}
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if got, want := len(server.gServer.topics), len(topics); got != want {
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t.Fatalf("got %d topics, want %d", got, want)
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}
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for _, top := range topics {
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got, err := pclient.GetTopic(ctx, &pb.GetTopicRequest{Topic: top.Name})
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if err != nil {
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t.Fatal(err)
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}
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if !testutil.Equal(got, top) {
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t.Errorf("\ngot %+v\nwant %+v", got, top)
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}
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}
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res, err := pclient.ListTopics(ctx, &pb.ListTopicsRequest{Project: "projects/P"})
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if err != nil {
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t.Fatal(err)
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}
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if got, want := res.Topics, topics; !testutil.Equal(got, want) {
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t.Errorf("\ngot %+v\nwant %+v", got, want)
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}
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for _, top := range topics {
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if _, err := pclient.DeleteTopic(ctx, &pb.DeleteTopicRequest{Topic: top.Name}); err != nil {
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t.Fatal(err)
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}
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}
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if got, want := len(server.gServer.topics), 0; got != want {
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t.Fatalf("got %d topics, want %d", got, want)
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}
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}
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func TestSubscriptions(t *testing.T) {
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pclient, sclient, server := newFake(t)
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ctx := context.Background()
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topic := mustCreateTopic(t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
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var subs []*pb.Subscription
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for i := 0; i < 3; i++ {
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subs = append(subs, mustCreateSubscription(t, sclient, &pb.Subscription{
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Name: fmt.Sprintf("projects/P/subscriptions/S%d", i),
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Topic: topic.Name,
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AckDeadlineSeconds: int32(10 * (i + 1)),
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}))
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}
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if got, want := len(server.gServer.subs), len(subs); got != want {
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t.Fatalf("got %d subscriptions, want %d", got, want)
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}
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for _, s := range subs {
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got, err := sclient.GetSubscription(ctx, &pb.GetSubscriptionRequest{Subscription: s.Name})
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if err != nil {
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t.Fatal(err)
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}
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if !testutil.Equal(got, s) {
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t.Errorf("\ngot %+v\nwant %+v", got, s)
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}
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}
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res, err := sclient.ListSubscriptions(ctx, &pb.ListSubscriptionsRequest{Project: "projects/P"})
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if err != nil {
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t.Fatal(err)
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}
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if got, want := res.Subscriptions, subs; !testutil.Equal(got, want) {
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t.Errorf("\ngot %+v\nwant %+v", got, want)
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}
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res2, err := pclient.ListTopicSubscriptions(ctx, &pb.ListTopicSubscriptionsRequest{Topic: topic.Name})
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if err != nil {
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t.Fatal(err)
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}
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if got, want := len(res2.Subscriptions), len(subs); got != want {
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t.Fatalf("got %d subs, want %d", got, want)
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}
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for i, got := range res2.Subscriptions {
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want := subs[i].Name
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if !testutil.Equal(got, want) {
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t.Errorf("\ngot %+v\nwant %+v", got, want)
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}
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}
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for _, s := range subs {
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if _, err := sclient.DeleteSubscription(ctx, &pb.DeleteSubscriptionRequest{Subscription: s.Name}); err != nil {
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t.Fatal(err)
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}
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}
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if got, want := len(server.gServer.subs), 0; got != want {
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t.Fatalf("got %d subscriptions, want %d", got, want)
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}
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}
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func TestPublish(t *testing.T) {
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s := NewServer()
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var ids []string
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for i := 0; i < 3; i++ {
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ids = append(ids, s.Publish("projects/p/topics/t", []byte("hello"), nil))
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}
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s.Wait()
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ms := s.Messages()
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if got, want := len(ms), len(ids); got != want {
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t.Errorf("got %d messages, want %d", got, want)
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}
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for i, id := range ids {
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if got, want := ms[i].ID, id; got != want {
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t.Errorf("got %s, want %s", got, want)
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}
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}
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m := s.Message(ids[1])
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if m == nil {
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t.Error("got nil, want a message")
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}
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}
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// Note: this sets the fake's "now" time, so it is senstive to concurrent changes to "now".
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func publish(t *testing.T, pclient pb.PublisherClient, topic *pb.Topic, messages []*pb.PubsubMessage) map[string]*pb.PubsubMessage {
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pubTime := time.Now()
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now.Store(func() time.Time { return pubTime })
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defer func() { now.Store(time.Now) }()
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res, err := pclient.Publish(context.Background(), &pb.PublishRequest{
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Topic: topic.Name,
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Messages: messages,
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})
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if err != nil {
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t.Fatal(err)
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}
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tsPubTime, err := ptypes.TimestampProto(pubTime)
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if err != nil {
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t.Fatal(err)
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}
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want := map[string]*pb.PubsubMessage{}
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for i, id := range res.MessageIds {
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want[id] = &pb.PubsubMessage{
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Data: messages[i].Data,
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Attributes: messages[i].Attributes,
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MessageId: id,
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PublishTime: tsPubTime,
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}
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}
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return want
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}
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func TestStreamingPull(t *testing.T) {
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// A simple test of streaming pull.
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pclient, sclient, _ := newFake(t)
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top := mustCreateTopic(t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
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sub := mustCreateSubscription(t, sclient, &pb.Subscription{
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Name: "projects/P/subscriptions/S",
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Topic: top.Name,
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AckDeadlineSeconds: 10,
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})
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want := publish(t, pclient, top, []*pb.PubsubMessage{
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{Data: []byte("d1")},
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{Data: []byte("d2")},
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{Data: []byte("d3")},
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})
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got := pullN(t, len(want), sclient, sub)
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if diff := testutil.Diff(got, want); diff != "" {
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t.Error(diff)
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}
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}
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func TestAck(t *testing.T) {
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// Ack each message as it arrives. Make sure we don't see dups.
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minAckDeadlineSecs = 1
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pclient, sclient, _ := newFake(t)
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top := mustCreateTopic(t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
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sub := mustCreateSubscription(t, sclient, &pb.Subscription{
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Name: "projects/P/subscriptions/S",
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Topic: top.Name,
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AckDeadlineSeconds: 1,
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})
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_ = publish(t, pclient, top, []*pb.PubsubMessage{
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{Data: []byte("d1")},
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{Data: []byte("d2")},
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{Data: []byte("d3")},
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})
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got := map[string]bool{}
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spc := mustStartPull(t, sclient, sub)
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time.AfterFunc(time.Duration(3*minAckDeadlineSecs)*time.Second, func() {
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if err := spc.CloseSend(); err != nil {
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t.Errorf("CloseSend: %v", err)
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}
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})
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for {
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res, err := spc.Recv()
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if err == io.EOF {
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break
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}
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if err != nil {
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t.Fatal(err)
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}
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req := &pb.StreamingPullRequest{}
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for _, m := range res.ReceivedMessages {
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if got[m.Message.MessageId] {
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t.Fatal("duplicate message")
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}
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got[m.Message.MessageId] = true
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req.AckIds = append(req.AckIds, m.AckId)
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}
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if err := spc.Send(req); err != nil {
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t.Fatal(err)
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}
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}
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}
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func TestAckDeadline(t *testing.T) {
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// Messages should be resent after they expire.
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pclient, sclient, _ := newFake(t)
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minAckDeadlineSecs = 2
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top := mustCreateTopic(t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
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sub := mustCreateSubscription(t, sclient, &pb.Subscription{
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Name: "projects/P/subscriptions/S",
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Topic: top.Name,
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AckDeadlineSeconds: minAckDeadlineSecs,
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})
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_ = publish(t, pclient, top, []*pb.PubsubMessage{
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{Data: []byte("d1")},
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{Data: []byte("d2")},
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{Data: []byte("d3")},
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})
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got := map[string]int{}
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spc := mustStartPull(t, sclient, sub)
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// In 5 seconds the ack deadline will expire twice, so we should see each message
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// exactly three times.
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time.AfterFunc(5*time.Second, func() {
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if err := spc.CloseSend(); err != nil {
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t.Errorf("CloseSend: %v", err)
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}
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})
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for {
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res, err := spc.Recv()
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if err == io.EOF {
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break
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}
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if err != nil {
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t.Fatal(err)
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}
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for _, m := range res.ReceivedMessages {
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got[m.Message.MessageId]++
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}
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}
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for id, n := range got {
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if n != 3 {
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t.Errorf("message %s: saw %d times, want 3", id, n)
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}
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}
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}
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func TestMultiSubs(t *testing.T) {
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// Each subscription gets every message.
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pclient, sclient, _ := newFake(t)
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top := mustCreateTopic(t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
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sub1 := mustCreateSubscription(t, sclient, &pb.Subscription{
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Name: "projects/P/subscriptions/S1",
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Topic: top.Name,
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AckDeadlineSeconds: 10,
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})
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sub2 := mustCreateSubscription(t, sclient, &pb.Subscription{
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Name: "projects/P/subscriptions/S2",
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Topic: top.Name,
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AckDeadlineSeconds: 10,
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})
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want := publish(t, pclient, top, []*pb.PubsubMessage{
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{Data: []byte("d1")},
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{Data: []byte("d2")},
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{Data: []byte("d3")},
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})
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got1 := pullN(t, len(want), sclient, sub1)
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got2 := pullN(t, len(want), sclient, sub2)
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if diff := testutil.Diff(got1, want); diff != "" {
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t.Error(diff)
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}
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if diff := testutil.Diff(got2, want); diff != "" {
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t.Error(diff)
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}
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}
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func TestMultiStreams(t *testing.T) {
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// Messages are handed out to the streams of a subscription in round-robin order.
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pclient, sclient, _ := newFake(t)
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top := mustCreateTopic(t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
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sub := mustCreateSubscription(t, sclient, &pb.Subscription{
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Name: "projects/P/subscriptions/S",
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Topic: top.Name,
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AckDeadlineSeconds: 10,
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})
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want := publish(t, pclient, top, []*pb.PubsubMessage{
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{Data: []byte("d1")},
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{Data: []byte("d2")},
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{Data: []byte("d3")},
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{Data: []byte("d4")},
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})
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streams := []pb.Subscriber_StreamingPullClient{
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mustStartPull(t, sclient, sub),
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mustStartPull(t, sclient, sub),
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}
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got := map[string]*pb.PubsubMessage{}
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for i := 0; i < 2; i++ {
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for _, st := range streams {
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res, err := st.Recv()
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if err != nil {
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t.Fatal(err)
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}
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m := res.ReceivedMessages[0]
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got[m.Message.MessageId] = m.Message
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}
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}
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if diff := testutil.Diff(got, want); diff != "" {
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t.Error(diff)
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}
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}
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func TestStreamingPullTimeout(t *testing.T) {
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pclient, sclient, srv := newFake(t)
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timeout := 200 * time.Millisecond
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srv.SetStreamTimeout(timeout)
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top := mustCreateTopic(t, pclient, &pb.Topic{Name: "projects/P/topics/T"})
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sub := mustCreateSubscription(t, sclient, &pb.Subscription{
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Name: "projects/P/subscriptions/S",
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Topic: top.Name,
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AckDeadlineSeconds: 10,
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})
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stream := mustStartPull(t, sclient, sub)
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time.Sleep(2 * timeout)
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_, err := stream.Recv()
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if err != io.EOF {
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t.Errorf("got %v, want io.EOF", err)
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}
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}
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func mustStartPull(t *testing.T, sc pb.SubscriberClient, sub *pb.Subscription) pb.Subscriber_StreamingPullClient {
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spc, err := sc.StreamingPull(context.Background())
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if err != nil {
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t.Fatal(err)
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}
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if err := spc.Send(&pb.StreamingPullRequest{Subscription: sub.Name}); err != nil {
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t.Fatal(err)
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}
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return spc
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}
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func pullN(t *testing.T, n int, sc pb.SubscriberClient, sub *pb.Subscription) map[string]*pb.PubsubMessage {
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spc := mustStartPull(t, sc, sub)
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got := map[string]*pb.PubsubMessage{}
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for i := 0; i < n; i++ {
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res, err := spc.Recv()
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if err != nil {
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t.Fatal(err)
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}
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for _, m := range res.ReceivedMessages {
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got[m.Message.MessageId] = m.Message
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}
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}
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if err := spc.CloseSend(); err != nil {
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t.Fatal(err)
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}
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res, err := spc.Recv()
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if err != io.EOF {
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t.Fatalf("Recv returned <%v> instead of EOF; res = %v", err, res)
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}
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return got
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}
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func mustCreateTopic(t *testing.T, pc pb.PublisherClient, topic *pb.Topic) *pb.Topic {
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top, err := pc.CreateTopic(context.Background(), topic)
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if err != nil {
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t.Fatal(err)
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}
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return top
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}
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func mustCreateSubscription(t *testing.T, sc pb.SubscriberClient, sub *pb.Subscription) *pb.Subscription {
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sub, err := sc.CreateSubscription(context.Background(), sub)
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if err != nil {
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t.Fatal(err)
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}
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return sub
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}
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func newFake(t *testing.T) (pb.PublisherClient, pb.SubscriberClient, *Server) {
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srv := NewServer()
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conn, err := grpc.Dial(srv.Addr, grpc.WithInsecure())
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if err != nil {
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t.Fatal(err)
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}
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return pb.NewPublisherClient(conn), pb.NewSubscriberClient(conn), srv
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}
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