149 lines
3.7 KiB
Go
149 lines
3.7 KiB
Go
// Copyright 2016 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 pubsub
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import (
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"fmt"
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"net"
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"testing"
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"time"
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"cloud.google.com/go/internal/testutil"
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"google.golang.org/grpc/status"
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"golang.org/x/net/context"
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"google.golang.org/api/iterator"
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"google.golang.org/api/option"
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pubsubpb "google.golang.org/genproto/googleapis/pubsub/v1"
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"google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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)
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func checkTopicListing(t *testing.T, c *Client, want []string) {
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topics, err := slurpTopics(c.Topics(context.Background()))
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if err != nil {
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t.Fatalf("error listing topics: %v", err)
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}
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var got []string
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for _, topic := range topics {
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got = append(got, topic.ID())
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}
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if !testutil.Equal(got, want) {
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t.Errorf("topic list: got: %v, want: %v", got, want)
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}
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}
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// All returns the remaining topics from this iterator.
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func slurpTopics(it *TopicIterator) ([]*Topic, error) {
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var topics []*Topic
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for {
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switch topic, err := it.Next(); err {
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case nil:
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topics = append(topics, topic)
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case iterator.Done:
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return topics, nil
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default:
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return nil, err
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}
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}
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}
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func TestTopicID(t *testing.T) {
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const id = "id"
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c, _ := newFake(t)
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s := c.Topic(id)
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if got, want := s.ID(), id; got != want {
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t.Errorf("Token.ID() = %q; want %q", got, want)
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}
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}
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func TestListTopics(t *testing.T) {
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c, _ := newFake(t)
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var ids []string
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for i := 1; i <= 4; i++ {
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id := fmt.Sprintf("t%d", i)
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ids = append(ids, id)
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mustCreateTopic(t, c, id)
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}
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checkTopicListing(t, c, ids)
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}
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func TestListCompletelyEmptyTopics(t *testing.T) {
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c, _ := newFake(t)
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checkTopicListing(t, c, nil)
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}
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func TestStopPublishOrder(t *testing.T) {
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// Check that Stop doesn't panic if called before Publish.
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// Also that Publish after Stop returns the right error.
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ctx := context.Background()
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c := &Client{projectID: "projid"}
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topic := c.Topic("t")
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topic.Stop()
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r := topic.Publish(ctx, &Message{})
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_, err := r.Get(ctx)
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if err != errTopicStopped {
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t.Errorf("got %v, want errTopicStopped", err)
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}
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}
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func TestPublishTimeout(t *testing.T) {
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ctx := context.Background()
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serv := grpc.NewServer()
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pubsubpb.RegisterPublisherServer(serv, &alwaysFailPublish{})
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lis, err := net.Listen("tcp", "localhost:0")
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if err != nil {
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t.Fatal(err)
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}
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go serv.Serve(lis)
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conn, err := grpc.Dial(lis.Addr().String(), grpc.WithInsecure())
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if err != nil {
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t.Fatal(err)
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}
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c, err := NewClient(ctx, "projectID", option.WithGRPCConn(conn))
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if err != nil {
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t.Fatal(err)
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}
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topic := c.Topic("t")
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topic.PublishSettings.Timeout = 3 * time.Second
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r := topic.Publish(ctx, &Message{})
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defer topic.Stop()
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select {
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case <-r.Ready():
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_, err = r.Get(ctx)
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if err != context.DeadlineExceeded {
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t.Fatalf("got %v, want context.DeadlineExceeded", err)
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}
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case <-time.After(2 * topic.PublishSettings.Timeout):
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t.Fatal("timed out")
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}
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}
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type alwaysFailPublish struct {
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pubsubpb.PublisherServer
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}
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func (s *alwaysFailPublish) Publish(ctx context.Context, req *pubsubpb.PublishRequest) (*pubsubpb.PublishResponse, error) {
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return nil, status.Errorf(codes.Unavailable, "try again")
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}
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func mustCreateTopic(t *testing.T, c *Client, id string) *Topic {
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topic, err := c.CreateTopic(context.Background(), id)
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if err != nil {
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t.Fatal(err)
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}
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return topic
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}
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