func TestNilConnection(t *testing.T) {
var nc *nats.Conn
data := []byte("ok")
// Publish
if err := nc.Publish("foo", data); err == nil || err != nats.ErrInvalidConnection {
t.Fatalf("Expected ErrInvalidConnection error, got %v\n", err)
}
if err := nc.PublishMsg(nil); err == nil || err != nats.ErrInvalidMsg {
t.Fatalf("Expected ErrInvalidMsg error, got %v\n", err)
}
if err := nc.PublishMsg(&nats.Msg{}); err == nil || err != nats.ErrInvalidConnection {
t.Fatalf("Expected ErrInvalidConnection error, got %v\n", err)
}
if err := nc.PublishRequest("foo", "reply", data); err == nil || err != nats.ErrInvalidConnection {
t.Fatalf("Expected ErrInvalidConnection error, got %v\n", err)
}
// Subscribe
if _, err := nc.Subscribe("foo", nil); err == nil || err != nats.ErrInvalidConnection {
t.Fatalf("Expected ErrInvalidConnection error, got %v\n", err)
}
if _, err := nc.SubscribeSync("foo"); err == nil || err != nats.ErrInvalidConnection {
t.Fatalf("Expected ErrInvalidConnection error, got %v\n", err)
}
if _, err := nc.QueueSubscribe("foo", "bar", nil); err == nil || err != nats.ErrInvalidConnection {
t.Fatalf("Expected ErrInvalidConnection error, got %v\n", err)
}
ch := make(chan *nats.Msg)
if _, err := nc.ChanSubscribe("foo", ch); err == nil || err != nats.ErrInvalidConnection {
t.Fatalf("Expected ErrInvalidConnection error, got %v\n", err)
}
if _, err := nc.ChanQueueSubscribe("foo", "bar", ch); err == nil || err != nats.ErrInvalidConnection {
t.Fatalf("Expected ErrInvalidConnection error, got %v\n", err)
}
if _, err := nc.QueueSubscribeSyncWithChan("foo", "bar", ch); err == nil || err != nats.ErrInvalidConnection {
t.Fatalf("Expected ErrInvalidConnection error, got %v\n", err)
}
// Flush
if err := nc.Flush(); err == nil || err != nats.ErrInvalidConnection {
t.Fatalf("Expected ErrInvalidConnection error, got %v\n", err)
}
if err := nc.FlushTimeout(time.Millisecond); err == nil || err != nats.ErrInvalidConnection {
t.Fatalf("Expected ErrInvalidConnection error, got %v\n", err)
}
// Nil Subscribers
var sub *nats.Subscription
if sub.Type() != nats.NilSubscription {
t.Fatalf("Got wrong type for nil subscription, %v\n", sub.Type())
}
if sub.IsValid() {
t.Fatalf("Expected IsValid() to return false")
}
if err := sub.Unsubscribe(); err == nil || err != nats.ErrBadSubscription {
t.Fatalf("Expected Unsubscribe to return proper error, got %v\n", err)
}
if err := sub.AutoUnsubscribe(1); err == nil || err != nats.ErrBadSubscription {
t.Fatalf("Expected ErrBadSubscription error, got %v\n", err)
}
if _, err := sub.NextMsg(time.Millisecond); err == nil || err != nats.ErrBadSubscription {
t.Fatalf("Expected ErrBadSubscription error, got %v\n", err)
}
if _, err := sub.QueuedMsgs(); err == nil || err != nats.ErrBadSubscription {
t.Fatalf("Expected ErrBadSubscription error, got %v\n", err)
}
if _, _, err := sub.Pending(); err == nil || err != nats.ErrBadSubscription {
t.Fatalf("Expected ErrBadSubscription error, got %v\n", err)
}
if _, _, err := sub.MaxPending(); err == nil || err != nats.ErrBadSubscription {
t.Fatalf("Expected ErrBadSubscription error, got %v\n", err)
}
if err := sub.ClearMaxPending(); err == nil || err != nats.ErrBadSubscription {
t.Fatalf("Expected ErrBadSubscription error, got %v\n", err)
}
if _, _, err := sub.PendingLimits(); err == nil || err != nats.ErrBadSubscription {
t.Fatalf("Expected ErrBadSubscription error, got %v\n", err)
}
if err := sub.SetPendingLimits(1, 1); err == nil || err != nats.ErrBadSubscription {
t.Fatalf("Expected ErrBadSubscription error, got %v\n", err)
}
if _, err := sub.Delivered(); err == nil || err != nats.ErrBadSubscription {
t.Fatalf("Expected ErrBadSubscription error, got %v\n", err)
}
if _, err := sub.Dropped(); err == nil || err != nats.ErrBadSubscription {
t.Fatalf("Expected ErrBadSubscription error, got %v\n", err)
}
}
func connect(conn *nats.Conn, subj string, timeout time.Duration) (*nats.Msg, string, error) {
inbox := nats.NewInbox()
s, err := conn.Subscribe(inbox, nil)
if err != nil {
return nil, "", err
}
s.AutoUnsubscribe(1)
err = conn.PublishRequest(subj, inbox, nil)
if err != nil {
return nil, "", err
}
msg, err := s.NextMsg(timeout)
if err != nil {
return nil, "", err
}
return msg, inbox, nil
}
})
})
Context("when a greeting message is received", func() {
BeforeEach(func() {
process = ifrit.Invoke(sub)
Eventually(process.Ready()).Should(BeClosed())
})
It("responds", func() {
msgChan := make(chan *nats.Msg, 1)
_, err := natsClient.ChanSubscribe("router.greet.test.response", msgChan)
Expect(err).ToNot(HaveOccurred())
err = natsClient.PublishRequest("router.greet", "router.greet.test.response", []byte{})
Expect(err).ToNot(HaveOccurred())
var msg *nats.Msg
Eventually(msgChan).Should(Receive(&msg))
Expect(msg).ToNot(BeNil())
var message common.RouterStart
err = json.Unmarshal(msg.Data, &message)
Expect(err).ToNot(HaveOccurred())
Expect(message.Id).To(Equal(subOpts.ID))
Expect(message.Hosts).ToNot(BeEmpty())
Expect(message.MinimumRegisterIntervalInSeconds).To(Equal(subOpts.MinimumRegisterIntervalInSeconds))
Expect(message.PruneThresholdInSeconds).To(Equal(subOpts.PruneThresholdInSeconds))
})
Expect(err).ToNot(HaveOccurred())
}
}
})
Context("NATS", func() {
Context("Router Greetings", func() {
It("RouterGreets", func() {
response := make(chan []byte)
mbusClient.Subscribe("router.greet.test.response", func(msg *nats.Msg) {
response <- msg.Data
})
mbusClient.PublishRequest("router.greet", "router.greet.test.response", []byte{})
var msg []byte
Eventually(response).Should(Receive(&msg))
var message common.RouterStart
err := json.Unmarshal(msg, &message)
Expect(err).NotTo(HaveOccurred())
Expect(message.MinimumRegisterIntervalInSeconds).To(Equal(5))
Expect(message.PruneThresholdInSeconds).To(Equal(120))
})
It("handles a empty reply on greet", func() {
err := mbusClient.PublishRequest("router.greet", "", []byte{})
Expect(err).NotTo(HaveOccurred())
_, err = mbusClient.Subscribe("subject", func(msg *nats.Msg) {
defer GinkgoRecover()
data := make(map[string]interface{})
err := json.Unmarshal(msg.Data, &data)
Expect(err).ToNot(HaveOccurred())
for _, key := range members {
_, ok := data[key]
Expect(ok).To(BeTrue())
}
close(done)
})
Expect(err).ToNot(HaveOccurred())
err = mbusClient.PublishRequest("vcap.component.discover", "subject", []byte(""))
Expect(err).ToNot(HaveOccurred())
Eventually(done).Should(BeClosed())
})
It("publishes to vcap.component.announce on start-up", func() {
done := make(chan struct{})
members := []string{
"type",
"index",
"host",
"credentials",
"start",
"uuid",
"uptime",