Function TestMessageDetails

jetstream/test/message_test.go:27–87

(t *testing.T)

)

func TestMessageDetails(t *testing.T) {
	srv := RunBasicJetStreamServer()
	defer shutdownJSServerAndRemoveStorage(t, srv)
	nc, err := nats.Connect(srv.ClientURL())
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}

	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()
	js, err := jetstream.New(nc)
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}
	defer nc.Close()

	s, err := js.CreateStream(ctx, jetstream.StreamConfig{Name: "foo", Subjects: []string{"FOO.*"}})
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}
	c, err := s.CreateOrUpdateConsumer(ctx, jetstream.ConsumerConfig{
		Durable:     "cons",
		AckPolicy:   jetstream.AckExplicitPolicy,
		Description: "test consumer",
	})
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}

	if _, err := js.Publish(ctx, "FOO.1", []byte("msg"), jetstream.WithMsgID("123")); err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}
	msgs, err := c.Fetch(1)
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}

	msg := <-msgs.Messages()
	if msg == nil {
		t.Fatalf("No messages available")
	}
	if err := msgs.Error(); err != nil {
		t.Fatalf("unexpected error during fetch: %v", err)
	}
	if string(msg.Data()) != "msg" {
		t.Fatalf("Invalid message body; want: 'msg'; got: %q", string(msg.Data()))
	}
	metadata, err := msg.Metadata()
	if err != nil {
		t.Fatalf("Unexpected error: %v", err)
	}
	if metadata.Consumer != "cons" || metadata.Stream != "foo" {
		t.Fatalf("Invalid message metadata: %v", metadata)
	}
	if val, ok := msg.Headers()["Nats-Msg-Id"]; !ok || val[0] != "123" {
		t.Fatalf("Invalid message headers: %v", msg.Headers())
	}
	if msg.Subject() != "FOO.1" {