func gossipStores(g *gossip.Gossip, stores []*proto.StoreDescriptor, t *testing.T) { var wg sync.WaitGroup wg.Add(len(stores)) g.RegisterCallback(gossip.MakePrefixPattern(gossip.KeyCapacityPrefix), func(_ string, _ bool) { wg.Done() }) for _, s := range stores { keyMaxCapacity := gossip.MakeCapacityKey(s.Node.NodeID, s.StoreID) // Gossip store descriptor. err := g.AddInfo(keyMaxCapacity, *s, 0) if err != nil { t.Fatal(err) } } // Wait for all gossip callbacks to be invoked. wg.Wait() }