remove commented out test code

services/meta/service_test.go

@@ -477,75 +477,3 @@ func mustParseStatement(s string) influxql.Statement {
 	}
 	return stmt
 }
-
-// Test long poll of snapshot.
-// Clients will make a long poll request for a snapshot update by passing their
-// current snapshot index.  The meta service will respond to the request when
-// its snapshot index exceeds the client's snapshot index.
-// func TestMetaService_LongPoll(t *testing.T) {
-// 	t.Parallel()
-
-// 	cfg := newConfig()
-// 	defer os.RemoveAll(cfg.Dir)
-// 	s := newService(cfg)
-// 	if err := s.Open(); err != nil {
-// 		t.Fatal(err)
-// 	}
-
-// 	before, err := snapshot(s, 0)
-// 	if err != nil {
-// 		t.Fatal(err)
-// 	}
-
-// 	node := before.Node(1)
-// 	if node != nil {
-// 		t.Fatal("expected <nil> but got a node")
-// 	}
-
-// 	// Start a long poll request for a snapshot update.
-// 	ch := make(chan *meta.Data)
-// 	errch := make(chan error)
-// 	go func() {
-// 		after, err := snapshot(s, 1)
-// 		if err != nil {
-// 			errch <- err
-// 		}
-// 		ch <- after
-// 	}()
-
-// 	// Fire off an update after a delay.
-// 	host := "127.0.0.1"
-// 	update := make(chan struct{})
-// 	go func() {
-// 		<-update
-// 		cmdval := &internal.CreateNodeCommand{
-// 			Host: proto.String(host),
-// 			Rand: proto.Uint64(42),
-// 		}
-// 		if err := exec(s, internal.Command_CreateNodeCommand, internal.E_CreateNodeCommand_Command, cmdval); err != nil {
-// 			errch <- err
-// 		}
-// 	}()
-
-// 	for i := 0; i < 2; i++ {
-// 		select {
-// 		case after := <-ch:
-// 			node = after.Node(1)
-// 			if node == nil {
-// 				t.Fatal("expected node but got <nil>")
-// 			} else if node.Host != host {
-// 				t.Fatalf("unexpected host:\n\texp: %s\n\tgot: %s\n", host, node.Host)
-// 			}
-// 		case err := <-errch:
-// 			t.Fatal(err)
-// 		case <-time.After(time.Second):
-// 			// First time through the loop it should time out because update hasn't happened.
-// 			if i == 0 {
-// 				// Signal the update
-// 				update <- struct{}{}
-// 			} else {
-// 				t.Fatal("timed out waiting for snapshot update")
-// 			}
-// 		}
-// 	}
-// }