package eth
import (
"io"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/p2p"
)
type testMsgReadWriter struct {
in chan p2p.Msg
out chan p2p.Msg
}
func (self *testMsgReadWriter) In(msg p2p.Msg) {
self.in <- msg
}
func (self *testMsgReadWriter) Out(msg p2p.Msg) {
self.in <- msg
}
func (self *testMsgReadWriter) WriteMsg(msg p2p.Msg) error {
self.out <- msg
return nil
}
func (self *testMsgReadWriter) EncodeMsg(code uint64, data ...interface{}) error {
return self.WriteMsg(p2p.NewMsg(code, data))
}
func (self *testMsgReadWriter) ReadMsg() (p2p.Msg, error) {
msg, ok := <-self.in
if !ok {
return msg, io.EOF
}
return msg, nil
}
func errorCheck(t *testing.T, expCode int, err error) {
perr, ok := err.(*protocolError)
if ok && perr != nil {
if code := perr.Code; code != expCode {
ok = false
}
}
if !ok {
t.Errorf("expected error code %v, got %v", ErrNoStatusMsg, err)
}
}
type TestBackend struct {
getTransactions func() []*types.Transaction
addTransactions func(txs []*types.Transaction)
getBlockHashes func(hash []byte, amount uint32) (hashes [][]byte)
addBlockHashes func(next func() ([]byte, bool), peerId string)
getBlock func(hash []byte) *types.Block
addBlock func(block *types.Block, peerId string) (err error)
addPeer func(td *big.Int, currentBlock []byte, peerId string, requestHashes func([]byte) error, requestBlocks func([][]byte) error, invalidBlock func(error)) (best bool)
removePeer func(peerId string)
status func() (td *big.Int, currentBlock []byte, genesisBlock []byte)
}
func (self *TestBackend) GetTransactions() (txs []*types.Transaction) {
if self.getTransactions != nil {
txs = self.getTransactions()
}
return
}
func (self *TestBackend) AddTransactions(txs []*types.Transaction) {
if self.addTransactions != nil {
self.addTransactions(txs)
}
}
func (self *TestBackend) GetBlockHashes(hash []byte, amount uint32) (hashes [][]byte) {
if self.getBlockHashes != nil {
hashes = self.getBlockHashes(hash, amount)
}
return
}
func (self *TestBackend) AddBlockHashes(next func() ([]byte, bool), peerId string) {
if self.addBlockHashes != nil {
self.addBlockHashes(next, peerId)
}
}
func (self *TestBackend) GetBlock(hash []byte) (block *types.Block) {
if self.getBlock != nil {
block = self.getBlock(hash)
}
return
}
func (self *TestBackend) AddBlock(block *types.Block, peerId string) (err error) {
if self.addBlock != nil {
err = self.addBlock(block, peerId)
}
return
}
func (self *TestBackend) AddPeer(td *big.Int, currentBlock []byte, peerId string, requestBlockHashes func([]byte) error, requestBlocks func([][]byte) error, invalidBlock func(error)) (best bool) {
if self.addPeer != nil {
best = self.addPeer(td, currentBlock, peerId, requestBlockHashes, requestBlocks, invalidBlock)
}
return
}
func (self *TestBackend) RemovePeer(peerId string) {
if self.removePeer != nil {
self.removePeer(peerId)
}
}
func (self *TestBackend) Status() (td *big.Int, currentBlock []byte, genesisBlock []byte) {
if self.status != nil {
td, currentBlock, genesisBlock = self.status()
}
return
}
// TODO: refactor this into p2p/client_identity
type peerId struct {
pubkey []byte
}
func (self *peerId) String() string {
return "test peer"
}
func (self *peerId) Pubkey() (pubkey []byte) {
pubkey = self.pubkey
if len(pubkey) == 0 {
pubkey = crypto.GenerateNewKeyPair().PublicKey
self.pubkey = pubkey
}
return
}
func testPeer() *p2p.Peer {
return p2p.NewPeer(&peerId{}, []p2p.Cap{})
}
func TestErrNoStatusMsg(t *testing.T) {
quit := make(chan bool)
rw := &testMsgReadWriter{make(chan p2p.Msg, 10), make(chan p2p.Msg, 10)}
testBackend := &TestBackend{}
var err error
go func() {
err = runEthProtocol(testBackend, testPeer(), rw)
close(quit)
}()
statusMsg := p2p.NewMsg(4)
rw.In(statusMsg)
<-quit
errorCheck(t, ErrNoStatusMsg, err)
// read(t, remote, []byte("hello, world"), nil)
}
