func TestSetPeers(t *testing.T) {
home, err := ioutil.TempDir("", "test-peers")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(home)
_, trans := raft.NewInmemTransport()
p := newPeerStore(home, trans)
peers, err := p.Peers()
if err != nil {
t.Fatal(err)
}
if len(peers) != 0 {
t.Fatalf("expected peers to be empty but got %v", peers)
}
peer := "1.2.3.4:1234"
err = p.SetPeers([]string{peer})
if err != nil {
t.Fatal(err)
}
peers, err = p.Peers()
if err != nil {
t.Fatal(err)
}
if len(peers) != 1 {
t.Fatalf("expected 1 peer, got %v", peers)
}
if peers[0] != peer {
t.Fatalf("expected peer %s, got %s", peer, peers[0])
}
}
// makeRaft returns a Raft and its FSM, with snapshots based in the given dir.
func makeRaft(t *testing.T, dir string) (*raft.Raft, *MockFSM) {
snaps, err := raft.NewFileSnapshotStore(dir, 5, nil)
if err != nil {
t.Fatalf("err: %v", err)
}
fsm := &MockFSM{}
store := raft.NewInmemStore()
addr, trans := raft.NewInmemTransport("")
config := raft.DefaultConfig()
config.LocalID = raft.ServerID(fmt.Sprintf("server-%s", addr))
var members raft.Configuration
members.Servers = append(members.Servers, raft.Server{
Suffrage: raft.Voter,
ID: config.LocalID,
Address: addr,
})
err = raft.BootstrapCluster(config, store, store, snaps, trans, members)
if err != nil {
t.Fatalf("err: %v", err)
}
raft, err := raft.NewRaft(config, fsm, store, store, snaps, trans)
if err != nil {
t.Fatalf("err: %v", err)
}
timeout := time.After(10 * time.Second)
for {
if raft.Leader() != "" {
break
}
select {
case <-raft.LeaderCh():
case <-time.After(1 * time.Second):
// Need to poll because we might have missed the first
// go with the leader channel.
case <-timeout:
t.Fatalf("timed out waiting for leader")
}
}
return raft, fsm
}