func TestSubscriber(t *testing.T) {
l := events.NewLogger()
s := l.Subscribe(0)
if s == nil {
t.Fatal("Unexpected nil Subscription")
}
}
func TestBufferedSub(t *testing.T) {
l := events.NewLogger()
s := l.Subscribe(events.AllEvents)
bs := events.NewBufferedSubscription(s, 10*events.BufferSize)
go func() {
for i := 0; i < 10*events.BufferSize; i++ {
l.Log(events.NodeConnected, fmt.Sprintf("event-%d", i))
if i%30 == 0 {
// Give the buffer routine time to pick up the events
time.Sleep(20 * time.Millisecond)
}
}
}()
recv := 0
for recv < 10*events.BufferSize {
evs := bs.Since(recv, nil)
for _, ev := range evs {
if ev.ID != recv+1 {
t.Fatalf("Incorrect ID; %d != %d", ev.ID, recv+1)
}
recv = ev.ID
}
}
}
func TestIDs(t *testing.T) {
l := events.NewLogger()
s := l.Subscribe(events.AllEvents)
l.Log(events.NodeConnected, "foo")
l.Log(events.NodeConnected, "bar")
ev, err := s.Poll(timeout)
if err != nil {
t.Fatal("Unexpected error:", err)
}
if ev.Data.(string) != "foo" {
t.Fatal("Incorrect event:", ev)
}
id := ev.ID
ev, err = s.Poll(timeout)
if err != nil {
t.Fatal("Unexpected error:", err)
}
if ev.Data.(string) != "bar" {
t.Fatal("Incorrect event:", ev)
}
if !(ev.ID > id) {
t.Fatalf("ID not incremented (%d !> %d)", ev.ID, id)
}
}
func TestTimeout(t *testing.T) {
l := events.NewLogger()
s := l.Subscribe(0)
_, err := s.Poll(timeout)
if err != events.ErrTimeout {
t.Fatal("Unexpected non-Timeout error:", err)
}
}
func TestEventAfterSubscribeIgnoreMask(t *testing.T) {
l := events.NewLogger()
s := l.Subscribe(events.NodeDisconnected)
l.Log(events.NodeConnected, "foo")
_, err := s.Poll(timeout)
if err != events.ErrTimeout {
t.Fatal("Unexpected non-Timeout error:", err)
}
}
func TestEventBeforeSubscribe(t *testing.T) {
l := events.NewLogger()
l.Log(events.NodeConnected, "foo")
s := l.Subscribe(0)
_, err := s.Poll(timeout)
if err != events.ErrTimeout {
t.Fatal("Unexpected non-Timeout error:", err)
}
}
func TestBufferOverflow(t *testing.T) {
l := events.NewLogger()
_ = l.Subscribe(events.AllEvents)
t0 := time.Now()
for i := 0; i < events.BufferSize*2; i++ {
l.Log(events.NodeConnected, "foo")
}
if time.Since(t0) > timeout {
t.Fatalf("Logging took too long")
}
}
func TestUnsubscribe(t *testing.T) {
l := events.NewLogger()
s := l.Subscribe(events.AllEvents)
l.Log(events.NodeConnected, "foo")
_, err := s.Poll(timeout)
if err != nil {
t.Fatal("Unexpected error:", err)
}
l.Unsubscribe(s)
l.Log(events.NodeConnected, "foo")
_, err = s.Poll(timeout)
if err != events.ErrClosed {
t.Fatal("Unexpected non-Closed error:", err)
}
}
func TestEventAfterSubscribe(t *testing.T) {
l := events.NewLogger()
s := l.Subscribe(events.AllEvents)
l.Log(events.NodeConnected, "foo")
ev, err := s.Poll(timeout)
if err != nil {
t.Fatal("Unexpected error:", err)
}
if ev.Type != events.NodeConnected {
t.Error("Incorrect event type", ev.Type)
}
switch v := ev.Data.(type) {
case string:
if v != "foo" {
t.Error("Incorrect Data string", v)
}
default:
t.Errorf("Incorrect Data type %#v", v)
}
}
func TestNewLogger(t *testing.T) {
l := events.NewLogger()
if l == nil {
t.Fatal("Unexpected nil Logger")
}
}