neoneo-go/pkg/network/server_test.go
Roman Khimov 7fc153ed2a network: only ask mempool for intersections with received Inv
Most of the time on healthy network we see new transactions appearing that are
not present in the mempool. Once they get into mempool we don't ask for them
again when some other peer sends an Inv with them. Then these transactions are
usually added into block, removed from mempool and no one actually sends them
again to us. Some stale nodes can do that, but it's not very likely to
happen.

At the receiving end at the same time it's quite expensive to do full chain
HasTransaction() query, so if we can avoid doing that it's always good. Here
it technically allows resending old transaction that will be re-requested and
an attempt to add it to mempool will be made. But it'll inevitably fail
because the same HasTransaction() check is done there too. One can try to
maliciously flood the node with stale transactions but it doesn't differ from
flooding it with any other invalid transactions, so there is no new attack
vector added.

Baseline, 4 nodes with 10 workers:

RPS    6902.296 6465.662 6856.044 6785.515 6157.024 ≈ 6633   ± 4.26%
TPS    6468.431 6218.867 6610.565 6288.596 5790.556 ≈ 6275   ± 4.44%
CPU %    50.231   42.925   49.481   48.396   42.662 ≈   46.7 ± 7.01%
Mem MB 2856.841 2684.103 2756.195 2733.485 2422.787 ≈ 2691   ± 5.40%

Patched:

RPS    7176.784 7014.511 6139.663 7191.280 7080.852 ≈ 6921   ± 5.72% ↑ 4.34%
TPS    6945.409 6562.756 5927.050 6681.187 6821.794 ≈ 6588   ± 5.38% ↑ 4.99%
CPU %    44.400   43.842   40.418   49.211   49.370 ≈   45.4 ± 7.53% ↓ 2.78%
Mem MB 2693.414 2640.602 2472.007 2731.482 2707.879 ≈ 2649   ± 3.53% ↓ 1.56%
2021-08-06 20:53:02 +03:00

901 lines
28 KiB
Go

package network
import (
"errors"
"math/big"
"net"
"strconv"
atomic2 "sync/atomic"
"testing"
"time"
"github.com/nspcc-dev/neo-go/internal/fakechain"
"github.com/nspcc-dev/neo-go/internal/random"
"github.com/nspcc-dev/neo-go/pkg/config"
"github.com/nspcc-dev/neo-go/pkg/consensus"
"github.com/nspcc-dev/neo-go/pkg/core"
"github.com/nspcc-dev/neo-go/pkg/core/block"
"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/network/capability"
"github.com/nspcc-dev/neo-go/pkg/network/payload"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.uber.org/atomic"
"go.uber.org/zap/zaptest"
)
type fakeConsensus struct {
started atomic.Bool
stopped atomic.Bool
payloads []*payload.Extensible
txs []*transaction.Transaction
}
var _ consensus.Service = (*fakeConsensus)(nil)
func newFakeConsensus(c consensus.Config) (consensus.Service, error) {
return new(fakeConsensus), nil
}
func (f *fakeConsensus) Start() { f.started.Store(true) }
func (f *fakeConsensus) Shutdown() { f.stopped.Store(true) }
func (f *fakeConsensus) OnPayload(p *payload.Extensible) { f.payloads = append(f.payloads, p) }
func (f *fakeConsensus) OnTransaction(tx *transaction.Transaction) { f.txs = append(f.txs, tx) }
func (f *fakeConsensus) GetPayload(h util.Uint256) *payload.Extensible { panic("implement me") }
func TestNewServer(t *testing.T) {
bc := &fakechain.FakeChain{}
s, err := newServerFromConstructors(ServerConfig{}, bc, nil, newFakeTransp, newFakeConsensus, newTestDiscovery)
require.Error(t, err)
t.Run("set defaults", func(t *testing.T) {
s = newTestServer(t, ServerConfig{MinPeers: -1})
require.True(t, s.ID() != 0)
require.Equal(t, defaultMinPeers, s.ServerConfig.MinPeers)
require.Equal(t, defaultMaxPeers, s.ServerConfig.MaxPeers)
require.Equal(t, defaultAttemptConnPeers, s.ServerConfig.AttemptConnPeers)
})
t.Run("don't defaults", func(t *testing.T) {
cfg := ServerConfig{
MinPeers: 1,
MaxPeers: 2,
AttemptConnPeers: 3,
}
s = newTestServer(t, cfg)
require.True(t, s.ID() != 0)
require.Equal(t, 1, s.ServerConfig.MinPeers)
require.Equal(t, 2, s.ServerConfig.MaxPeers)
require.Equal(t, 3, s.ServerConfig.AttemptConnPeers)
})
t.Run("consensus error is not dropped", func(t *testing.T) {
errConsensus := errors.New("can't create consensus")
_, err = newServerFromConstructors(ServerConfig{MinPeers: -1}, bc, zaptest.NewLogger(t), newFakeTransp,
func(consensus.Config) (consensus.Service, error) { return nil, errConsensus },
newTestDiscovery)
require.True(t, errors.Is(err, errConsensus), "got: %#v", err)
})
}
func startWithChannel(s *Server) chan error {
ch := make(chan error)
go func() {
s.Start(ch)
close(ch)
}()
return ch
}
func TestServerStartAndShutdown(t *testing.T) {
t.Run("no consensus", func(t *testing.T) {
s := newTestServer(t, ServerConfig{})
ch := startWithChannel(s)
p := newLocalPeer(t, s)
s.register <- p
require.Eventually(t, func() bool { return 1 == s.PeerCount() }, time.Second, time.Millisecond*10)
assert.True(t, s.transport.(*fakeTransp).started.Load())
assert.False(t, s.consensus.(*fakeConsensus).started.Load())
s.Shutdown()
<-ch
require.True(t, s.transport.(*fakeTransp).closed.Load())
require.True(t, s.consensus.(*fakeConsensus).stopped.Load())
err, ok := p.droppedWith.Load().(error)
require.True(t, ok)
require.True(t, errors.Is(err, errServerShutdown))
})
t.Run("with consensus", func(t *testing.T) {
s := newTestServer(t, ServerConfig{Wallet: new(config.Wallet)})
ch := startWithChannel(s)
p := newLocalPeer(t, s)
s.register <- p
assert.True(t, s.consensus.(*fakeConsensus).started.Load())
s.Shutdown()
<-ch
require.True(t, s.consensus.(*fakeConsensus).stopped.Load())
})
}
func TestServerRegisterPeer(t *testing.T) {
const peerCount = 3
s := newTestServer(t, ServerConfig{MaxPeers: 2})
ps := make([]*localPeer, peerCount)
for i := range ps {
ps[i] = newLocalPeer(t, s)
ps[i].netaddr.Port = i + 1
}
ch := startWithChannel(s)
t.Cleanup(func() {
s.Shutdown()
<-ch
})
s.register <- ps[0]
require.Eventually(t, func() bool { return 1 == s.PeerCount() }, time.Second, time.Millisecond*10)
s.register <- ps[1]
require.Eventually(t, func() bool { return 2 == s.PeerCount() }, time.Second, time.Millisecond*10)
require.Equal(t, 0, len(s.discovery.UnconnectedPeers()))
s.register <- ps[2]
require.Eventually(t, func() bool { return len(s.discovery.UnconnectedPeers()) > 0 }, time.Second, time.Millisecond*100)
index := -1
addrs := s.discovery.UnconnectedPeers()
for _, addr := range addrs {
for j := range ps {
if ps[j].PeerAddr().String() == addr {
index = j
break
}
}
}
require.True(t, index >= 0)
err, ok := ps[index].droppedWith.Load().(error)
require.True(t, ok)
require.True(t, errors.Is(err, errMaxPeers))
index = (index + 1) % peerCount
s.unregister <- peerDrop{ps[index], errIdenticalID}
require.Eventually(t, func() bool {
bad := s.BadPeers()
for i := range bad {
if bad[i] == ps[index].PeerAddr().String() {
return true
}
}
return false
}, time.Second, time.Millisecond*50)
}
func TestGetBlocksByIndex(t *testing.T) {
s := newTestServer(t, ServerConfig{Port: 0, UserAgent: "/test/"})
ps := make([]*localPeer, 10)
expectsCmd := make([]CommandType, 10)
expectedHeight := make([][]uint32, 10)
start := s.chain.BlockHeight()
for i := range ps {
i := i
ps[i] = newLocalPeer(t, s)
ps[i].messageHandler = func(t *testing.T, msg *Message) {
require.Equal(t, expectsCmd[i], msg.Command)
if expectsCmd[i] == CMDGetBlockByIndex {
p, ok := msg.Payload.(*payload.GetBlockByIndex)
require.True(t, ok)
require.Contains(t, expectedHeight[i], p.IndexStart)
expectsCmd[i] = CMDPong
} else if expectsCmd[i] == CMDPong {
expectsCmd[i] = CMDGetBlockByIndex
}
}
expectsCmd[i] = CMDGetBlockByIndex
expectedHeight[i] = []uint32{start + 1}
}
go s.transport.Accept()
nonce := uint32(0)
checkPingRespond := func(t *testing.T, peerIndex int, peerHeight uint32, hs ...uint32) {
nonce++
expectedHeight[peerIndex] = hs
require.NoError(t, s.handlePing(ps[peerIndex], payload.NewPing(peerHeight, nonce)))
}
// Send all requests for all chunks.
checkPingRespond(t, 0, 5000, 1)
checkPingRespond(t, 1, 5000, 1+payload.MaxHashesCount)
checkPingRespond(t, 2, 5000, 1+2*payload.MaxHashesCount)
checkPingRespond(t, 3, 5000, 1+3*payload.MaxHashesCount)
// Receive some blocks.
s.chain.(*fakechain.FakeChain).Blockheight = 2123
// Minimum chunk has priority.
checkPingRespond(t, 5, 5000, 2124)
checkPingRespond(t, 6, 5000, 2624)
// Request minimal height for peers behind.
checkPingRespond(t, 7, 3100, 2124)
checkPingRespond(t, 8, 5000, 3124)
checkPingRespond(t, 9, 5000, 3624)
// Request random height after that.
checkPingRespond(t, 1, 5000, 2124, 2624, 3124, 3624)
checkPingRespond(t, 2, 5000, 2124, 2624, 3124, 3624)
checkPingRespond(t, 3, 5000, 2124, 2624, 3124, 3624)
}
func TestSendVersion(t *testing.T) {
var (
s = newTestServer(t, ServerConfig{Port: 0, UserAgent: "/test/"})
p = newLocalPeer(t, s)
)
// we need to set listener at least to handle dynamic port correctly
s.transport.Accept()
p.messageHandler = func(t *testing.T, msg *Message) {
// listener is already set, so Address() gives us proper address with port
_, p, err := net.SplitHostPort(s.transport.Address())
assert.NoError(t, err)
port, err := strconv.ParseUint(p, 10, 16)
assert.NoError(t, err)
assert.Equal(t, CMDVersion, msg.Command)
assert.IsType(t, msg.Payload, &payload.Version{})
version := msg.Payload.(*payload.Version)
assert.NotZero(t, version.Nonce)
assert.Equal(t, 1, len(version.Capabilities))
assert.ElementsMatch(t, []capability.Capability{
{
Type: capability.TCPServer,
Data: &capability.Server{
Port: uint16(port),
},
},
}, version.Capabilities)
assert.Equal(t, uint32(0), version.Version)
assert.Equal(t, []byte("/test/"), version.UserAgent)
}
require.NoError(t, p.SendVersion())
}
// Server should reply with a verack after receiving a valid version.
func TestVerackAfterHandleVersionCmd(t *testing.T) {
var (
s = newTestServer(t, ServerConfig{})
p = newLocalPeer(t, s)
)
na, _ := net.ResolveTCPAddr("tcp", "0.0.0.0:3000")
p.netaddr = *na
// Should have a verack
p.messageHandler = func(t *testing.T, msg *Message) {
assert.Equal(t, CMDVerack, msg.Command)
}
capabilities := []capability.Capability{
{
Type: capability.FullNode,
Data: &capability.Node{
StartHeight: 0,
},
},
{
Type: capability.TCPServer,
Data: &capability.Server{
Port: 3000,
},
},
}
version := payload.NewVersion(0, 1337, "/NEO-GO/", capabilities)
require.NoError(t, s.handleVersionCmd(p, version))
}
// Server should not reply with a verack after receiving a
// invalid version and disconnects the peer.
func TestServerNotSendsVerack(t *testing.T) {
var (
s = newTestServer(t, ServerConfig{MaxPeers: 10, Net: 56753})
p = newLocalPeer(t, s)
p2 = newLocalPeer(t, s)
)
s.id = 1
finished := make(chan struct{})
go func() {
s.run()
close(finished)
}()
t.Cleanup(func() {
// close via quit as server was started via `run()`, not `Start()`
close(s.quit)
<-finished
})
na, _ := net.ResolveTCPAddr("tcp", "0.0.0.0:3000")
p.netaddr = *na
p2.netaddr = *na
s.register <- p
capabilities := []capability.Capability{
{
Type: capability.FullNode,
Data: &capability.Node{
StartHeight: 0,
},
},
{
Type: capability.TCPServer,
Data: &capability.Server{
Port: 3000,
},
},
}
// identical id's
version := payload.NewVersion(56753, 1, "/NEO-GO/", capabilities)
err := s.handleVersionCmd(p, version)
assert.NotNil(t, err)
assert.Equal(t, errIdenticalID, err)
// Different IDs, but also different magics
version.Nonce = 2
version.Magic = 56752
err = s.handleVersionCmd(p, version)
assert.NotNil(t, err)
assert.Equal(t, errInvalidNetwork, err)
// Different IDs and same network, make handshake pass.
version.Magic = 56753
require.NoError(t, s.handleVersionCmd(p, version))
require.NoError(t, p.HandleVersionAck())
require.Equal(t, true, p.Handshaked())
// Second handshake from the same peer should fail.
s.register <- p2
err = s.handleVersionCmd(p2, version)
assert.NotNil(t, err)
require.Equal(t, errAlreadyConnected, err)
}
func (s *Server) testHandleMessage(t *testing.T, p Peer, cmd CommandType, pl payload.Payload) *Server {
if p == nil {
p = newLocalPeer(t, s)
p.(*localPeer).handshaked = true
}
msg := NewMessage(cmd, pl)
require.NoError(t, s.handleMessage(p, msg))
return s
}
func startTestServer(t *testing.T) *Server {
s := newTestServer(t, ServerConfig{Port: 0, UserAgent: "/test/"})
ch := startWithChannel(s)
t.Cleanup(func() {
s.Shutdown()
<-ch
})
return s
}
func TestBlock(t *testing.T) {
s := startTestServer(t)
atomic2.StoreUint32(&s.chain.(*fakechain.FakeChain).Blockheight, 12344)
require.Equal(t, uint32(12344), s.chain.BlockHeight())
b := block.New(false)
b.Index = 12345
s.testHandleMessage(t, nil, CMDBlock, b)
require.Eventually(t, func() bool { return s.chain.BlockHeight() == 12345 }, time.Second, time.Millisecond*500)
}
func TestConsensus(t *testing.T) {
s := startTestServer(t)
atomic2.StoreUint32(&s.chain.(*fakechain.FakeChain).Blockheight, 4)
p := newLocalPeer(t, s)
p.handshaked = true
s.register <- p
require.Eventually(t, func() bool { return 1 == s.PeerCount() }, time.Second, time.Millisecond*10)
newConsensusMessage := func(start, end uint32) *Message {
pl := payload.NewExtensible()
pl.Category = consensus.Category
pl.ValidBlockStart = start
pl.ValidBlockEnd = end
return NewMessage(CMDExtensible, pl)
}
s.chain.(*fakechain.FakeChain).VerifyWitnessF = func() error { return errors.New("invalid") }
msg := newConsensusMessage(0, s.chain.BlockHeight()+1)
require.Error(t, s.handleMessage(p, msg))
s.chain.(*fakechain.FakeChain).VerifyWitnessF = func() error { return nil }
require.NoError(t, s.handleMessage(p, msg))
require.Contains(t, s.consensus.(*fakeConsensus).payloads, msg.Payload.(*payload.Extensible))
t.Run("small ValidUntilBlockEnd", func(t *testing.T) {
t.Run("current height", func(t *testing.T) {
msg := newConsensusMessage(0, s.chain.BlockHeight())
require.NoError(t, s.handleMessage(p, msg))
require.NotContains(t, s.consensus.(*fakeConsensus).payloads, msg.Payload.(*payload.Extensible))
})
t.Run("invalid", func(t *testing.T) {
msg := newConsensusMessage(0, s.chain.BlockHeight()-1)
require.Error(t, s.handleMessage(p, msg))
})
})
t.Run("big ValidUntiLBlockStart", func(t *testing.T) {
msg := newConsensusMessage(s.chain.BlockHeight()+1, s.chain.BlockHeight()+2)
require.Error(t, s.handleMessage(p, msg))
})
t.Run("invalid category", func(t *testing.T) {
pl := payload.NewExtensible()
pl.Category = "invalid"
pl.ValidBlockEnd = s.chain.BlockHeight() + 1
msg := NewMessage(CMDExtensible, pl)
require.Error(t, s.handleMessage(p, msg))
})
}
func TestTransaction(t *testing.T) {
s := startTestServer(t)
t.Run("good", func(t *testing.T) {
tx := newDummyTx()
p := newLocalPeer(t, s)
p.isFullNode = true
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDInv {
inv := msg.Payload.(*payload.Inventory)
require.Equal(t, payload.TXType, inv.Type)
require.Equal(t, []util.Uint256{tx.Hash()}, inv.Hashes)
}
}
s.register <- p
s.testHandleMessage(t, nil, CMDTX, tx)
require.Contains(t, s.consensus.(*fakeConsensus).txs, tx)
})
t.Run("bad", func(t *testing.T) {
tx := newDummyTx()
s.chain.(*fakechain.FakeChain).PoolTxF = func(*transaction.Transaction) error { return core.ErrInsufficientFunds }
s.testHandleMessage(t, nil, CMDTX, tx)
for _, ftx := range s.consensus.(*fakeConsensus).txs {
require.NotEqual(t, ftx, tx)
}
})
}
func (s *Server) testHandleGetData(t *testing.T, invType payload.InventoryType, hs, notFound []util.Uint256, found payload.Payload) {
var recvResponse atomic.Bool
var recvNotFound atomic.Bool
p := newLocalPeer(t, s)
p.handshaked = true
p.messageHandler = func(t *testing.T, msg *Message) {
switch msg.Command {
case CMDTX, CMDBlock, CMDExtensible, CMDP2PNotaryRequest:
require.Equal(t, found, msg.Payload)
recvResponse.Store(true)
case CMDNotFound:
require.Equal(t, notFound, msg.Payload.(*payload.Inventory).Hashes)
recvNotFound.Store(true)
}
}
s.testHandleMessage(t, p, CMDGetData, payload.NewInventory(invType, hs))
require.Eventually(t, func() bool { return recvResponse.Load() }, time.Second, time.Millisecond)
require.Eventually(t, func() bool { return recvNotFound.Load() }, time.Second, time.Millisecond)
}
func TestGetData(t *testing.T) {
s := startTestServer(t)
s.chain.(*fakechain.FakeChain).UtilityTokenBalance = big.NewInt(1000000)
t.Run("block", func(t *testing.T) {
b := newDummyBlock(2, 0)
hs := []util.Uint256{random.Uint256(), b.Hash(), random.Uint256()}
s.chain.(*fakechain.FakeChain).PutBlock(b)
notFound := []util.Uint256{hs[0], hs[2]}
s.testHandleGetData(t, payload.BlockType, hs, notFound, b)
})
t.Run("transaction", func(t *testing.T) {
tx := newDummyTx()
hs := []util.Uint256{random.Uint256(), tx.Hash(), random.Uint256()}
s.chain.(*fakechain.FakeChain).PutTx(tx)
notFound := []util.Uint256{hs[0], hs[2]}
s.testHandleGetData(t, payload.TXType, hs, notFound, tx)
})
t.Run("p2pNotaryRequest", func(t *testing.T) {
mainTx := &transaction.Transaction{
Attributes: []transaction.Attribute{{Type: transaction.NotaryAssistedT, Value: &transaction.NotaryAssisted{NKeys: 1}}},
Script: []byte{0, 1, 2},
ValidUntilBlock: 123,
Signers: []transaction.Signer{{Account: random.Uint160()}},
Scripts: []transaction.Witness{{InvocationScript: []byte{1, 2, 3}, VerificationScript: []byte{1, 2, 3}}},
}
mainTx.Size()
mainTx.Hash()
fallbackTx := &transaction.Transaction{
Script: []byte{1, 2, 3},
ValidUntilBlock: 123,
Attributes: []transaction.Attribute{
{Type: transaction.NotValidBeforeT, Value: &transaction.NotValidBefore{Height: 123}},
{Type: transaction.ConflictsT, Value: &transaction.Conflicts{Hash: mainTx.Hash()}},
{Type: transaction.NotaryAssistedT, Value: &transaction.NotaryAssisted{NKeys: 0}},
},
Signers: []transaction.Signer{{Account: random.Uint160()}, {Account: random.Uint160()}},
Scripts: []transaction.Witness{{InvocationScript: append([]byte{byte(opcode.PUSHDATA1), 64}, make([]byte, 64)...), VerificationScript: make([]byte, 0)}, {InvocationScript: []byte{}, VerificationScript: []byte{}}},
}
fallbackTx.Size()
fallbackTx.Hash()
r := &payload.P2PNotaryRequest{
MainTransaction: mainTx,
FallbackTransaction: fallbackTx,
Witness: transaction.Witness{
InvocationScript: []byte{1, 2, 3},
VerificationScript: []byte{1, 2, 3},
},
}
r.Hash()
require.NoError(t, s.notaryRequestPool.Add(r.FallbackTransaction, s.chain, r))
hs := []util.Uint256{random.Uint256(), r.FallbackTransaction.Hash(), random.Uint256()}
notFound := []util.Uint256{hs[0], hs[2]}
s.testHandleGetData(t, payload.P2PNotaryRequestType, hs, notFound, r)
})
}
func initGetBlocksTest(t *testing.T) (*Server, []*block.Block) {
s := startTestServer(t)
var blocks []*block.Block
for i := uint32(12); i <= 15; i++ {
b := newDummyBlock(i, 3)
s.chain.(*fakechain.FakeChain).PutBlock(b)
blocks = append(blocks, b)
}
return s, blocks
}
func TestGetBlocks(t *testing.T) {
s, blocks := initGetBlocksTest(t)
expected := make([]util.Uint256, len(blocks))
for i := range blocks {
expected[i] = blocks[i].Hash()
}
var actual []util.Uint256
p := newLocalPeer(t, s)
p.handshaked = true
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDInv {
actual = msg.Payload.(*payload.Inventory).Hashes
}
}
t.Run("2", func(t *testing.T) {
s.testHandleMessage(t, p, CMDGetBlocks, &payload.GetBlocks{HashStart: expected[0], Count: 2})
require.Equal(t, expected[1:3], actual)
})
t.Run("-1", func(t *testing.T) {
s.testHandleMessage(t, p, CMDGetBlocks, &payload.GetBlocks{HashStart: expected[0], Count: -1})
require.Equal(t, expected[1:], actual)
})
t.Run("invalid start", func(t *testing.T) {
msg := NewMessage(CMDGetBlocks, &payload.GetBlocks{HashStart: util.Uint256{}, Count: -1})
require.Error(t, s.handleMessage(p, msg))
})
}
func TestGetBlockByIndex(t *testing.T) {
s, blocks := initGetBlocksTest(t)
var expected []*block.Block
var actual []*block.Block
p := newLocalPeer(t, s)
p.handshaked = true
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDBlock {
actual = append(actual, msg.Payload.(*block.Block))
if len(actual) == len(expected) {
require.Equal(t, expected, actual)
}
}
}
t.Run("2", func(t *testing.T) {
actual = nil
expected = blocks[:2]
s.testHandleMessage(t, p, CMDGetBlockByIndex, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: 2})
})
t.Run("-1", func(t *testing.T) {
actual = nil
expected = blocks
s.testHandleMessage(t, p, CMDGetBlockByIndex, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: -1})
})
t.Run("-1, last header", func(t *testing.T) {
s.chain.(*fakechain.FakeChain).PutHeader(newDummyBlock(16, 2))
actual = nil
expected = blocks
s.testHandleMessage(t, p, CMDGetBlockByIndex, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: -1})
})
}
func TestGetHeaders(t *testing.T) {
s, blocks := initGetBlocksTest(t)
expected := make([]*block.Header, len(blocks))
for i := range blocks {
expected[i] = &blocks[i].Header
}
var actual *payload.Headers
p := newLocalPeer(t, s)
p.handshaked = true
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDHeaders {
actual = msg.Payload.(*payload.Headers)
}
}
t.Run("2", func(t *testing.T) {
actual = nil
s.testHandleMessage(t, p, CMDGetHeaders, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: 2})
require.Equal(t, expected[:2], actual.Hdrs)
})
t.Run("more, than we have", func(t *testing.T) {
actual = nil
s.testHandleMessage(t, p, CMDGetHeaders, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: 10})
require.Equal(t, expected, actual.Hdrs)
})
t.Run("-1", func(t *testing.T) {
actual = nil
s.testHandleMessage(t, p, CMDGetHeaders, &payload.GetBlockByIndex{IndexStart: blocks[0].Index, Count: -1})
require.Equal(t, expected, actual.Hdrs)
})
t.Run("no headers", func(t *testing.T) {
actual = nil
s.testHandleMessage(t, p, CMDGetHeaders, &payload.GetBlockByIndex{IndexStart: 123, Count: -1})
require.Nil(t, actual)
})
}
func TestInv(t *testing.T) {
s := startTestServer(t)
s.chain.(*fakechain.FakeChain).UtilityTokenBalance = big.NewInt(10000000)
var actual []util.Uint256
p := newLocalPeer(t, s)
p.handshaked = true
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDGetData {
actual = msg.Payload.(*payload.Inventory).Hashes
}
}
t.Run("blocks", func(t *testing.T) {
b := newDummyBlock(10, 3)
s.chain.(*fakechain.FakeChain).PutBlock(b)
hs := []util.Uint256{random.Uint256(), b.Hash(), random.Uint256()}
s.testHandleMessage(t, p, CMDInv, &payload.Inventory{
Type: payload.BlockType,
Hashes: hs,
})
require.Equal(t, []util.Uint256{hs[0], hs[2]}, actual)
})
t.Run("transaction", func(t *testing.T) {
tx := newDummyTx()
require.NoError(t, s.chain.GetMemPool().Add(tx, s.chain))
hs := []util.Uint256{random.Uint256(), tx.Hash(), random.Uint256()}
s.testHandleMessage(t, p, CMDInv, &payload.Inventory{
Type: payload.TXType,
Hashes: hs,
})
require.Equal(t, []util.Uint256{hs[0], hs[2]}, actual)
})
t.Run("extensible", func(t *testing.T) {
ep := payload.NewExtensible()
s.chain.(*fakechain.FakeChain).VerifyWitnessF = func() error { return nil }
ep.ValidBlockEnd = s.chain.(*fakechain.FakeChain).BlockHeight() + 1
ok, err := s.extensiblePool.Add(ep)
require.NoError(t, err)
require.True(t, ok)
s.testHandleMessage(t, p, CMDInv, &payload.Inventory{
Type: payload.ExtensibleType,
Hashes: []util.Uint256{ep.Hash()},
})
})
t.Run("p2pNotaryRequest", func(t *testing.T) {
fallbackTx := transaction.New(random.Bytes(100), 123)
fallbackTx.Signers = []transaction.Signer{{Account: random.Uint160()}, {Account: random.Uint160()}}
fallbackTx.Size()
fallbackTx.Hash()
r := &payload.P2PNotaryRequest{
MainTransaction: newDummyTx(),
FallbackTransaction: fallbackTx,
}
require.NoError(t, s.notaryRequestPool.Add(r.FallbackTransaction, s.chain, r))
hs := []util.Uint256{random.Uint256(), r.FallbackTransaction.Hash(), random.Uint256()}
s.testHandleMessage(t, p, CMDInv, &payload.Inventory{
Type: payload.P2PNotaryRequestType,
Hashes: hs,
})
require.Equal(t, []util.Uint256{hs[0], hs[2]}, actual)
})
}
func TestRequestTx(t *testing.T) {
s := startTestServer(t)
var actual []util.Uint256
p := newLocalPeer(t, s)
p.handshaked = true
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDGetData {
actual = append(actual, msg.Payload.(*payload.Inventory).Hashes...)
}
}
s.register <- p
s.register <- p // ensure previous send was handled
t.Run("no hashes, no message", func(t *testing.T) {
actual = nil
s.requestTx()
require.Nil(t, actual)
})
t.Run("good, small", func(t *testing.T) {
actual = nil
expected := []util.Uint256{random.Uint256(), random.Uint256()}
s.requestTx(expected...)
require.Equal(t, expected, actual)
})
t.Run("good, exactly one chunk", func(t *testing.T) {
actual = nil
expected := make([]util.Uint256, payload.MaxHashesCount)
for i := range expected {
expected[i] = random.Uint256()
}
s.requestTx(expected...)
require.Equal(t, expected, actual)
})
t.Run("good, multiple chunks", func(t *testing.T) {
actual = nil
expected := make([]util.Uint256, payload.MaxHashesCount*2+payload.MaxHashesCount/2)
for i := range expected {
expected[i] = random.Uint256()
}
s.requestTx(expected...)
require.Equal(t, expected, actual)
})
}
func TestAddrs(t *testing.T) {
s := startTestServer(t)
ips := make([][16]byte, 4)
copy(ips[0][:], net.IPv4(1, 2, 3, 4))
copy(ips[1][:], net.IPv4(7, 8, 9, 0))
for i := range ips[2] {
ips[2][i] = byte(i)
}
p := newLocalPeer(t, s)
p.handshaked = true
p.getAddrSent = 1
pl := &payload.AddressList{
Addrs: []*payload.AddressAndTime{
{
IP: ips[0],
Capabilities: capability.Capabilities{{
Type: capability.TCPServer,
Data: &capability.Server{Port: 12},
}},
},
{
IP: ips[1],
Capabilities: capability.Capabilities{},
},
{
IP: ips[2],
Capabilities: capability.Capabilities{{
Type: capability.TCPServer,
Data: &capability.Server{Port: 42},
}},
},
},
}
s.testHandleMessage(t, p, CMDAddr, pl)
addrs := s.discovery.(*testDiscovery).backfill
require.Equal(t, 2, len(addrs))
require.Equal(t, "1.2.3.4:12", addrs[0])
require.Equal(t, net.JoinHostPort(net.IP(ips[2][:]).String(), "42"), addrs[1])
t.Run("CMDAddr not requested", func(t *testing.T) {
msg := NewMessage(CMDAddr, pl)
require.Error(t, s.handleMessage(p, msg))
})
}
type feerStub struct {
blockHeight uint32
}
func (f feerStub) FeePerByte() int64 { return 1 }
func (f feerStub) GetUtilityTokenBalance(util.Uint160) *big.Int { return big.NewInt(100000000) }
func (f feerStub) BlockHeight() uint32 { return f.blockHeight }
func (f feerStub) P2PSigExtensionsEnabled() bool { return false }
func (f feerStub) GetBaseExecFee() int64 { return interop.DefaultBaseExecFee }
func TestMemPool(t *testing.T) {
s := startTestServer(t)
var actual []util.Uint256
p := newLocalPeer(t, s)
p.handshaked = true
p.messageHandler = func(t *testing.T, msg *Message) {
if msg.Command == CMDInv {
actual = append(actual, msg.Payload.(*payload.Inventory).Hashes...)
}
}
bc := s.chain.(*fakechain.FakeChain)
expected := make([]util.Uint256, 4)
for i := range expected {
tx := newDummyTx()
require.NoError(t, bc.Pool.Add(tx, &feerStub{blockHeight: 10}))
expected[i] = tx.Hash()
}
s.testHandleMessage(t, p, CMDMempool, payload.NullPayload{})
require.ElementsMatch(t, expected, actual)
}
func TestVerifyNotaryRequest(t *testing.T) {
bc := fakechain.NewFakeChain()
bc.MaxVerificationGAS = 10
bc.NotaryContractScriptHash = util.Uint160{1, 2, 3}
newNotaryRequest := func() *payload.P2PNotaryRequest {
return &payload.P2PNotaryRequest{
MainTransaction: &transaction.Transaction{Script: []byte{0, 1, 2}},
FallbackTransaction: &transaction.Transaction{
ValidUntilBlock: 321,
Signers: []transaction.Signer{{Account: bc.NotaryContractScriptHash}, {Account: random.Uint160()}},
},
Witness: transaction.Witness{},
}
}
t.Run("bad payload witness", func(t *testing.T) {
bc.VerifyWitnessF = func() error { return errors.New("bad witness") }
require.Error(t, verifyNotaryRequest(bc, nil, newNotaryRequest()))
})
t.Run("bad fallback sender", func(t *testing.T) {
bc.VerifyWitnessF = func() error { return nil }
r := newNotaryRequest()
r.FallbackTransaction.Signers[0] = transaction.Signer{Account: util.Uint160{7, 8, 9}}
require.Error(t, verifyNotaryRequest(bc, nil, r))
})
t.Run("expired deposit", func(t *testing.T) {
r := newNotaryRequest()
bc.NotaryDepositExpiration = r.FallbackTransaction.ValidUntilBlock
require.Error(t, verifyNotaryRequest(bc, nil, r))
})
t.Run("good", func(t *testing.T) {
r := newNotaryRequest()
bc.NotaryDepositExpiration = r.FallbackTransaction.ValidUntilBlock + 1
require.NoError(t, verifyNotaryRequest(bc, nil, r))
})
}