go-pulse/eth/protocol_test.go
zelig 391e89d70a use own total difficulty to limit best peer
- update blockpool td by subscribing to ChainHeadEvent
- if ahead of best peer, demote it
- addPeer now take own td as current td
- removePeer now take own td as current td
- add relevant tests to peers_test
- eth: backend now calls blockpool with eth.eventMux and chainManager.Td
2015-03-20 10:41:40 +00:00

219 lines
6.0 KiB
Go

package eth
import (
"log"
"math/big"
"os"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/errs"
ethlogger "github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/discover"
)
var logsys = ethlogger.NewStdLogSystem(os.Stdout, log.LstdFlags, ethlogger.LogLevel(ethlogger.DebugDetailLevel))
var ini = false
func logInit() {
if !ini {
ethlogger.AddLogSystem(logsys)
ini = true
}
}
type testTxPool struct {
getTransactions func() []*types.Transaction
addTransactions func(txs []*types.Transaction)
}
type testChainManager struct {
getBlockHashes func(hash common.Hash, amount uint64) (hashes []common.Hash)
getBlock func(hash common.Hash) *types.Block
status func() (td *big.Int, currentBlock common.Hash, genesisBlock common.Hash)
}
type testBlockPool struct {
addBlockHashes func(next func() (common.Hash, bool), peerId string)
addBlock func(block *types.Block, peerId string) (err error)
addPeer func(td *big.Int, currentBlock common.Hash, peerId string, requestHashes func(common.Hash) error, requestBlocks func([]common.Hash) error, peerError func(*errs.Error)) (best bool, suspended bool)
removePeer func(peerId string)
}
func (self *testTxPool) AddTransactions(txs []*types.Transaction) {
if self.addTransactions != nil {
self.addTransactions(txs)
}
}
func (self *testTxPool) GetTransactions() types.Transactions { return nil }
func (self *testChainManager) GetBlockHashesFromHash(hash common.Hash, amount uint64) (hashes []common.Hash) {
if self.getBlockHashes != nil {
hashes = self.getBlockHashes(hash, amount)
}
return
}
func (self *testChainManager) Status() (td *big.Int, currentBlock common.Hash, genesisBlock common.Hash) {
if self.status != nil {
td, currentBlock, genesisBlock = self.status()
}
return
}
func (self *testChainManager) GetBlock(hash common.Hash) (block *types.Block) {
if self.getBlock != nil {
block = self.getBlock(hash)
}
return
}
func (self *testBlockPool) AddBlockHashes(next func() (common.Hash, bool), peerId string) {
if self.addBlockHashes != nil {
self.addBlockHashes(next, peerId)
}
}
func (self *testBlockPool) AddBlock(block *types.Block, peerId string) {
if self.addBlock != nil {
self.addBlock(block, peerId)
}
}
func (self *testBlockPool) AddPeer(td *big.Int, currentBlock common.Hash, peerId string, requestBlockHashes func(common.Hash) error, requestBlocks func([]common.Hash) error, peerError func(*errs.Error)) (best bool, suspended bool) {
if self.addPeer != nil {
best, suspended = self.addPeer(td, currentBlock, peerId, requestBlockHashes, requestBlocks, peerError)
}
return
}
func (self *testBlockPool) RemovePeer(peerId string) {
if self.removePeer != nil {
self.removePeer(peerId)
}
}
func testPeer() *p2p.Peer {
var id discover.NodeID
pk := crypto.GenerateNewKeyPair().PublicKey
copy(id[:], pk)
return p2p.NewPeer(id, "test peer", []p2p.Cap{})
}
type ethProtocolTester struct {
p2p.MsgReadWriter // writing to the tester feeds the protocol
quit chan error
pipe *p2p.MsgPipeRW // the protocol read/writes on this end
txPool *testTxPool // txPool
chainManager *testChainManager // chainManager
blockPool *testBlockPool // blockPool
t *testing.T
}
func newEth(t *testing.T) *ethProtocolTester {
p1, p2 := p2p.MsgPipe()
return &ethProtocolTester{
MsgReadWriter: p1,
quit: make(chan error, 1),
pipe: p2,
txPool: &testTxPool{},
chainManager: &testChainManager{},
blockPool: &testBlockPool{},
t: t,
}
}
func (self *ethProtocolTester) reset() {
self.pipe.Close()
p1, p2 := p2p.MsgPipe()
self.MsgReadWriter = p1
self.pipe = p2
self.quit = make(chan error, 1)
}
func (self *ethProtocolTester) checkError(expCode int, delay time.Duration) (err error) {
var timer = time.After(delay)
select {
case err = <-self.quit:
case <-timer:
self.t.Errorf("no error after %v, expected %v", delay, expCode)
return
}
perr, ok := err.(*errs.Error)
if ok && perr != nil {
if code := perr.Code; code != expCode {
self.t.Errorf("expected protocol error (code %v), got %v (%v)", expCode, code, err)
}
} else {
self.t.Errorf("expected protocol error (code %v), got %v", expCode, err)
}
return
}
func (self *ethProtocolTester) run() {
err := runEthProtocol(ProtocolVersion, NetworkId, self.txPool, self.chainManager, self.blockPool, testPeer(), self.pipe)
self.quit <- err
}
func TestStatusMsgErrors(t *testing.T) {
logInit()
eth := newEth(t)
td := common.Big1
currentBlock := common.Hash{1}
genesis := common.Hash{2}
eth.chainManager.status = func() (*big.Int, common.Hash, common.Hash) { return td, currentBlock, genesis }
go eth.run()
tests := []struct {
code uint64
data interface{}
wantErrorCode int
}{
{
code: TxMsg, data: []interface{}{},
wantErrorCode: ErrNoStatusMsg,
},
{
code: StatusMsg, data: statusMsgData{10, NetworkId, td, currentBlock, genesis},
wantErrorCode: ErrProtocolVersionMismatch,
},
{
code: StatusMsg, data: statusMsgData{ProtocolVersion, 999, td, currentBlock, genesis},
wantErrorCode: ErrNetworkIdMismatch,
},
{
code: StatusMsg, data: statusMsgData{ProtocolVersion, NetworkId, td, currentBlock, common.Hash{3}},
wantErrorCode: ErrGenesisBlockMismatch,
},
}
for _, test := range tests {
// first outgoing msg should be StatusMsg.
err := p2p.ExpectMsg(eth, StatusMsg, &statusMsgData{
ProtocolVersion: ProtocolVersion,
NetworkId: NetworkId,
TD: td,
CurrentBlock: currentBlock,
GenesisBlock: genesis,
})
if err != nil {
t.Fatalf("incorrect outgoing status: %v", err)
}
// the send call might hang until reset because
// the protocol might not read the payload.
go p2p.Send(eth, test.code, test.data)
eth.checkError(test.wantErrorCode, 1*time.Second)
eth.reset()
go eth.run()
}
}