a32c51effd
Implemented the --genesis flag thru which we can set a custom genesis block, including the official Ethereum genesis block.
258 lines
7.3 KiB
Go
258 lines
7.3 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package eth
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import (
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"crypto/rand"
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"math/big"
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"sync"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/p2p/discover"
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)
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func init() {
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// glog.SetToStderr(true)
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// glog.SetV(6)
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}
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var testAccount = crypto.NewKey(rand.Reader)
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func TestStatusMsgErrors(t *testing.T) {
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pm := newProtocolManagerForTesting(nil)
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td, currentBlock, genesis := pm.chainman.Status()
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defer pm.Stop()
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tests := []struct {
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code uint64
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data interface{}
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wantError error
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}{
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{
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code: TxMsg, data: []interface{}{},
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wantError: errResp(ErrNoStatusMsg, "first msg has code 2 (!= 0)"),
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},
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{
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code: StatusMsg, data: statusData{10, NetworkId, td, currentBlock, genesis},
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wantError: errResp(ErrProtocolVersionMismatch, "10 (!= 0)"),
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},
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{
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code: StatusMsg, data: statusData{uint32(ProtocolVersions[0]), 999, td, currentBlock, genesis},
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wantError: errResp(ErrNetworkIdMismatch, "999 (!= 0)"),
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},
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{
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code: StatusMsg, data: statusData{uint32(ProtocolVersions[0]), NetworkId, td, currentBlock, common.Hash{3}},
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wantError: errResp(ErrGenesisBlockMismatch, "0300000000000000000000000000000000000000000000000000000000000000 (!= %x)", genesis),
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},
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}
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for i, test := range tests {
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p, errc := newTestPeer(pm)
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// The send call might hang until reset because
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// the protocol might not read the payload.
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go p2p.Send(p, test.code, test.data)
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select {
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case err := <-errc:
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if err == nil {
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t.Errorf("test %d: protocol returned nil error, want %q", test.wantError)
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} else if err.Error() != test.wantError.Error() {
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t.Errorf("test %d: wrong error: got %q, want %q", i, err, test.wantError)
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}
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case <-time.After(2 * time.Second):
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t.Errorf("protocol did not shut down withing 2 seconds")
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}
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p.close()
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}
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}
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// This test checks that received transactions are added to the local pool.
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func TestRecvTransactions(t *testing.T) {
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txAdded := make(chan []*types.Transaction)
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pm := newProtocolManagerForTesting(txAdded)
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p, _ := newTestPeer(pm)
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defer pm.Stop()
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defer p.close()
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p.handshake(t)
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tx := newtx(testAccount, 0, 0)
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if err := p2p.Send(p, TxMsg, []interface{}{tx}); err != nil {
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t.Fatalf("send error: %v", err)
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}
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select {
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case added := <-txAdded:
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if len(added) != 1 {
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t.Errorf("wrong number of added transactions: got %d, want 1", len(added))
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} else if added[0].Hash() != tx.Hash() {
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t.Errorf("added wrong tx hash: got %v, want %v", added[0].Hash(), tx.Hash())
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}
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case <-time.After(2 * time.Second):
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t.Errorf("no TxPreEvent received within 2 seconds")
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}
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}
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// This test checks that pending transactions are sent.
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func TestSendTransactions(t *testing.T) {
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pm := newProtocolManagerForTesting(nil)
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defer pm.Stop()
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// Fill the pool with big transactions.
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const txsize = txsyncPackSize / 10
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alltxs := make([]*types.Transaction, 100)
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for nonce := range alltxs {
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alltxs[nonce] = newtx(testAccount, uint64(nonce), txsize)
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}
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pm.txpool.AddTransactions(alltxs)
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// Connect several peers. They should all receive the pending transactions.
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var wg sync.WaitGroup
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checktxs := func(p *testPeer) {
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defer wg.Done()
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defer p.close()
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seen := make(map[common.Hash]bool)
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for _, tx := range alltxs {
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seen[tx.Hash()] = false
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}
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for n := 0; n < len(alltxs) && !t.Failed(); {
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var txs []*types.Transaction
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msg, err := p.ReadMsg()
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if err != nil {
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t.Errorf("%v: read error: %v", p.Peer, err)
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} else if msg.Code != TxMsg {
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t.Errorf("%v: got code %d, want TxMsg", p.Peer, msg.Code)
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}
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if err := msg.Decode(&txs); err != nil {
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t.Errorf("%v: %v", p.Peer, err)
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}
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for _, tx := range txs {
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hash := tx.Hash()
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seentx, want := seen[hash]
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if seentx {
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t.Errorf("%v: got tx more than once: %x", p.Peer, hash)
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}
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if !want {
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t.Errorf("%v: got unexpected tx: %x", p.Peer, hash)
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}
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seen[hash] = true
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n++
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}
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}
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}
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for i := 0; i < 3; i++ {
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p, _ := newTestPeer(pm)
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p.handshake(t)
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wg.Add(1)
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go checktxs(p)
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}
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wg.Wait()
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}
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// testPeer wraps all peer-related data for tests.
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type testPeer struct {
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p2p.MsgReadWriter // writing to the test peer feeds the protocol
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pipe *p2p.MsgPipeRW // the protocol read/writes on this end
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pm *ProtocolManager
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*peer
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}
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func newProtocolManagerForTesting(txAdded chan<- []*types.Transaction) *ProtocolManager {
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db, _ := ethdb.NewMemDatabase()
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core.WriteTestNetGenesisBlock(db, db, 0)
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var (
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em = new(event.TypeMux)
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chain, _ = core.NewChainManager(db, db, db, core.FakePow{}, em)
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txpool = &fakeTxPool{added: txAdded}
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pm = NewProtocolManager(0, em, txpool, core.FakePow{}, chain)
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)
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pm.Start()
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return pm
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}
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func newTestPeer(pm *ProtocolManager) (*testPeer, <-chan error) {
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var id discover.NodeID
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rand.Read(id[:])
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rw1, rw2 := p2p.MsgPipe()
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peer := pm.newPeer(pm.protVer, pm.netId, p2p.NewPeer(id, "test peer", nil), rw2)
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errc := make(chan error, 1)
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go func() {
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pm.newPeerCh <- peer
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errc <- pm.handle(peer)
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}()
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return &testPeer{rw1, rw2, pm, peer}, errc
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}
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func (p *testPeer) handshake(t *testing.T) {
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td, currentBlock, genesis := p.pm.chainman.Status()
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msg := &statusData{
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ProtocolVersion: uint32(p.pm.protVer),
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NetworkId: uint32(p.pm.netId),
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TD: td,
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CurrentBlock: currentBlock,
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GenesisBlock: genesis,
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}
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if err := p2p.ExpectMsg(p, StatusMsg, msg); err != nil {
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t.Fatalf("status recv: %v", err)
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}
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if err := p2p.Send(p, StatusMsg, msg); err != nil {
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t.Fatalf("status send: %v", err)
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}
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}
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func (p *testPeer) close() {
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p.pipe.Close()
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}
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type fakeTxPool struct {
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// all transactions are collected.
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mu sync.Mutex
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all []*types.Transaction
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// if added is non-nil, it receives added transactions.
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added chan<- []*types.Transaction
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}
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func (pool *fakeTxPool) AddTransactions(txs []*types.Transaction) {
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pool.mu.Lock()
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defer pool.mu.Unlock()
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pool.all = append(pool.all, txs...)
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if pool.added != nil {
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pool.added <- txs
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}
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}
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func (pool *fakeTxPool) GetTransactions() types.Transactions {
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pool.mu.Lock()
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defer pool.mu.Unlock()
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txs := make([]*types.Transaction, len(pool.all))
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copy(txs, pool.all)
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return types.Transactions(txs)
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}
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func newtx(from *crypto.Key, nonce uint64, datasize int) *types.Transaction {
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data := make([]byte, datasize)
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tx := types.NewTransaction(nonce, common.Address{}, big.NewInt(0), big.NewInt(100000), big.NewInt(0), data)
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tx, _ = tx.SignECDSA(from.PrivateKey)
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return tx
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}
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