func TestValueGetSet(t *testing.T) {
u.Debug = false
addrA, err := ma.NewMultiaddr("/ip4/127.0.0.1/tcp/1235")
if err != nil {
t.Fatal(err)
}
addrB, err := ma.NewMultiaddr("/ip4/127.0.0.1/tcp/5679")
if err != nil {
t.Fatal(err)
}
peerA := makePeer(addrA)
peerB := makePeer(addrB)
neta := swarm.NewSwarm(peerA)
err = neta.Listen()
if err != nil {
t.Fatal(err)
}
dhtA := NewDHT(peerA, neta, ds.NewMapDatastore())
netb := swarm.NewSwarm(peerB)
err = netb.Listen()
if err != nil {
t.Fatal(err)
}
dhtB := NewDHT(peerB, netb, ds.NewMapDatastore())
dhtA.Start()
dhtB.Start()
errsa := dhtA.network.GetErrChan()
errsb := dhtB.network.GetErrChan()
go func() {
select {
case err := <-errsa:
t.Fatal(err)
case err := <-errsb:
t.Fatal(err)
}
}()
_, err = dhtA.Connect(addrB)
if err != nil {
t.Fatal(err)
}
dhtA.PutValue("hello", []byte("world"))
val, err := dhtA.GetValue("hello", time.Second*2)
if err != nil {
t.Fatal(err)
}
if string(val) != "world" {
t.Fatalf("Expected 'world' got '%s'", string(val))
}
}
func TestPing(t *testing.T) {
u.Debug = true
addrA, err := ma.NewMultiaddr("/ip4/127.0.0.1/tcp/2222")
if err != nil {
t.Fatal(err)
}
addrB, err := ma.NewMultiaddr("/ip4/127.0.0.1/tcp/5678")
if err != nil {
t.Fatal(err)
}
peerA := makePeer(addrA)
peerB := makePeer(addrB)
neta := swarm.NewSwarm(peerA)
err = neta.Listen()
if err != nil {
t.Fatal(err)
}
dhtA := NewDHT(peerA, neta, ds.NewMapDatastore())
netb := swarm.NewSwarm(peerB)
err = netb.Listen()
if err != nil {
t.Fatal(err)
}
dhtB := NewDHT(peerB, netb, ds.NewMapDatastore())
dhtA.Start()
dhtB.Start()
_, err = dhtA.Connect(addrB)
if err != nil {
t.Fatal(err)
}
//Test that we can ping the node
err = dhtA.Ping(peerB, time.Second*2)
if err != nil {
t.Fatal(err)
}
dhtA.Halt()
dhtB.Halt()
}
// If less than K nodes are in the entire network, it should fail when we make
// a GET rpc and nobody has the value
func TestLessThanKResponses(t *testing.T) {
u.Debug = false
fn := newFauxNet()
fn.Listen()
local := new(peer.Peer)
local.ID = peer.ID("test_peer")
d := NewDHT(local, fn, ds.NewMapDatastore())
d.Start()
var ps []*peer.Peer
for i := 0; i < 5; i++ {
ps = append(ps, _randPeer())
d.Update(ps[i])
}
other := _randPeer()
// Reply with random peers to every message
fn.AddHandler(func(mes *swarm.Message) *swarm.Message {
pmes := new(PBDHTMessage)
err := proto.Unmarshal(mes.Data, pmes)
if err != nil {
t.Fatal(err)
}
switch pmes.GetType() {
case PBDHTMessage_GET_VALUE:
resp := Message{
Type: pmes.GetType(),
ID: pmes.GetId(),
Response: true,
Success: false,
Peers: []*peer.Peer{other},
}
return swarm.NewMessage(mes.Peer, resp.ToProtobuf())
default:
panic("Shouldnt recieve this.")
}
})
_, err := d.GetValue(u.Key("hello"), time.Second*30)
if err != nil {
switch err {
case u.ErrNotFound:
//Success!
return
case u.ErrTimeout:
t.Fatal("Should not have gotten timeout!")
default:
t.Fatalf("Got unexpected error: %s", err)
}
}
t.Fatal("Expected to recieve an error.")
}
func TestBlocks(t *testing.T) {
d := ds.NewMapDatastore()
bs, err := NewBlockService(d, nil)
if err != nil {
t.Error("failed to construct block service", err)
return
}
b, err := blocks.NewBlock([]byte("beep boop"))
if err != nil {
t.Error("failed to construct block", err)
return
}
h, err := u.Hash([]byte("beep boop"))
if err != nil {
t.Error("failed to hash data", err)
return
}
if !bytes.Equal(b.Multihash, h) {
t.Error("Block Multihash and data multihash not equal")
}
if b.Key() != u.Key(h) {
t.Error("Block key and data multihash key not equal")
}
k, err := bs.AddBlock(b)
if err != nil {
t.Error("failed to add block to BlockService", err)
return
}
if k != b.Key() {
t.Error("returned key is not equal to block key", err)
}
b2, err := bs.GetBlock(b.Key())
if err != nil {
t.Error("failed to retrieve block from BlockService", err)
return
}
if b.Key() != b2.Key() {
t.Error("Block keys not equal.")
}
if !bytes.Equal(b.Data, b2.Data) {
t.Error("Block data is not equal.")
}
}
func makeDatastore(cfg config.Datastore) (ds.Datastore, error) {
if len(cfg.Type) == 0 {
return nil, fmt.Errorf("config datastore.type required")
}
switch cfg.Type {
case "leveldb":
return makeLevelDBDatastore(cfg)
case "memory":
return ds.NewMapDatastore(), nil
}
return nil, fmt.Errorf("Unknown datastore type: %s", cfg.Type)
}
func setupDHTS(n int, t *testing.T) ([]*ma.Multiaddr, []*peer.Peer, []*IpfsDHT) {
var addrs []*ma.Multiaddr
for i := 0; i < 4; i++ {
a, err := ma.NewMultiaddr(fmt.Sprintf("/ip4/127.0.0.1/tcp/%d", 5000+i))
if err != nil {
t.Fatal(err)
}
addrs = append(addrs, a)
}
var peers []*peer.Peer
for i := 0; i < 4; i++ {
p := new(peer.Peer)
p.AddAddress(addrs[i])
sk, pk, err := ci.GenerateKeyPair(ci.RSA, 512)
if err != nil {
panic(err)
}
p.PubKey = pk
p.PrivKey = sk
id, err := identify.IDFromPubKey(pk)
if err != nil {
panic(err)
}
p.ID = id
peers = append(peers, p)
}
var dhts []*IpfsDHT
for i := 0; i < 4; i++ {
net := swarm.NewSwarm(peers[i])
err := net.Listen()
if err != nil {
t.Fatal(err)
}
d := NewDHT(peers[i], net, ds.NewMapDatastore())
dhts = append(dhts, d)
d.Start()
}
return addrs, peers, dhts
}
func TestGetFailures(t *testing.T) {
fn := newFauxNet()
fn.Listen()
local := new(peer.Peer)
local.ID = peer.ID("test_peer")
d := NewDHT(local, fn, ds.NewMapDatastore())
other := &peer.Peer{ID: peer.ID("other_peer")}
d.Start()
d.Update(other)
// This one should time out
_, err := d.GetValue(u.Key("test"), time.Millisecond*10)
if err != nil {
if err != u.ErrTimeout {
t.Fatal("Got different error than we expected.")
}
} else {
t.Fatal("Did not get expected error!")
}
// Reply with failures to every message
fn.AddHandler(func(mes *swarm.Message) *swarm.Message {
pmes := new(PBDHTMessage)
err := proto.Unmarshal(mes.Data, pmes)
if err != nil {
t.Fatal(err)
}
resp := Message{
Type: pmes.GetType(),
ID: pmes.GetId(),
Response: true,
Success: false,
}
return swarm.NewMessage(mes.Peer, resp.ToProtobuf())
})
// This one should fail with NotFound
_, err = d.GetValue(u.Key("test"), time.Millisecond*1000)
if err != nil {
if err != u.ErrNotFound {
t.Fatalf("Expected ErrNotFound, got: %s", err)
}
} else {
t.Fatal("expected error, got none.")
}
success := make(chan struct{})
fn.handlers = nil
fn.AddHandler(func(mes *swarm.Message) *swarm.Message {
resp := new(PBDHTMessage)
err := proto.Unmarshal(mes.Data, resp)
if err != nil {
t.Fatal(err)
}
if resp.GetSuccess() {
t.Fatal("Get returned success when it shouldnt have.")
}
success <- struct{}{}
return nil
})
// Now we test this DHT's handleGetValue failure
req := Message{
Type: PBDHTMessage_GET_VALUE,
Key: "hello",
ID: swarm.GenerateMessageID(),
Value: []byte{0},
}
fn.Chan.Incoming <- swarm.NewMessage(other, req.ToProtobuf())
<-success
}
