go-ethereum/les/peer_test.go

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2019-07-22 04:17:27 -05:00
// Copyright 2019 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package les
import (
"crypto/rand"
"errors"
"math/big"
"reflect"
"sort"
"testing"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/forkid"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/params"
)
type testServerPeerSub struct {
regCh chan *serverPeer
unregCh chan *serverPeer
}
func newTestServerPeerSub() *testServerPeerSub {
return &testServerPeerSub{
regCh: make(chan *serverPeer, 1),
unregCh: make(chan *serverPeer, 1),
}
}
func (t *testServerPeerSub) registerPeer(p *serverPeer) { t.regCh <- p }
func (t *testServerPeerSub) unregisterPeer(p *serverPeer) { t.unregCh <- p }
func TestPeerSubscription(t *testing.T) {
peers := newServerPeerSet()
defer peers.close()
checkIds := func(expect []string) {
given := peers.ids()
if len(given) == 0 && len(expect) == 0 {
return
}
sort.Strings(given)
sort.Strings(expect)
if !reflect.DeepEqual(given, expect) {
t.Fatalf("all peer ids mismatch, want %v, given %v", expect, given)
}
}
checkPeers := func(peerCh chan *serverPeer) {
select {
case <-peerCh:
case <-time.NewTimer(100 * time.Millisecond).C:
t.Fatalf("timeout, no event received")
}
select {
case <-peerCh:
t.Fatalf("unexpected event received")
case <-time.NewTimer(10 * time.Millisecond).C:
}
}
checkIds([]string{})
sub := newTestServerPeerSub()
peers.subscribe(sub)
// Generate a random id and create the peer
var id enode.ID
rand.Read(id[:])
peer := newServerPeer(2, NetworkId, false, p2p.NewPeer(id, "name", nil), nil)
peers.register(peer)
checkIds([]string{peer.id})
checkPeers(sub.regCh)
peers.unregister(peer.id)
checkIds([]string{})
checkPeers(sub.unregCh)
}
type fakeChain struct{}
func (f *fakeChain) Config() *params.ChainConfig { return params.MainnetChainConfig }
func (f *fakeChain) Genesis() *types.Block {
return core.DefaultGenesisBlock().ToBlock()
}
func (f *fakeChain) CurrentHeader() *types.Header { return &types.Header{Number: big.NewInt(10000000)} }
func TestHandshake(t *testing.T) {
// Create a message pipe to communicate through
app, net := p2p.MsgPipe()
// Generate a random id and create the peer
var id enode.ID
rand.Read(id[:])
peer1 := newClientPeer(2, NetworkId, p2p.NewPeer(id, "name", nil), net)
peer2 := newServerPeer(2, NetworkId, true, p2p.NewPeer(id, "name", nil), app)
var (
errCh1 = make(chan error, 1)
errCh2 = make(chan error, 1)
td = big.NewInt(100)
head = common.HexToHash("deadbeef")
headNum = uint64(10)
genesis = common.HexToHash("cafebabe")
chain1, chain2 = &fakeChain{}, &fakeChain{}
forkID1 = forkid.NewID(chain1.Config(), chain1.Genesis(), chain1.CurrentHeader().Number.Uint64(), chain1.CurrentHeader().Time)
forkID2 = forkid.NewID(chain2.Config(), chain2.Genesis(), chain2.CurrentHeader().Number.Uint64(), chain2.CurrentHeader().Time)
filter1, filter2 = forkid.NewFilter(chain1), forkid.NewFilter(chain2)
)
go func() {
errCh1 <- peer1.handshake(td, head, headNum, genesis, forkID1, filter1, func(list *keyValueList) {
var announceType uint64 = announceTypeSigned
*list = (*list).add("announceType", announceType)
}, nil)
}()
go func() {
errCh2 <- peer2.handshake(td, head, headNum, genesis, forkID2, filter2, nil, func(recv keyValueMap) error {
var reqType uint64
err := recv.get("announceType", &reqType)
if err != nil {
return err
}
if reqType != announceTypeSigned {
return errors.New("Expected announceTypeSigned")
}
return nil
})
}()
for i := 0; i < 2; i++ {
select {
case err := <-errCh1:
if err != nil {
t.Fatalf("handshake failed, %v", err)
}
case err := <-errCh2:
if err != nil {
t.Fatalf("handshake failed, %v", err)
}
case <-time.After(time.Second):
t.Fatalf("timeout")
}
}
}