op-geth/eth/sync_test.go

81 lines
2.9 KiB
Go

// Copyright 2015 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 eth
import (
"sync/atomic"
"testing"
"time"
"github.com/ethereum/go-ethereum/eth/downloader"
"github.com/ethereum/go-ethereum/eth/protocols/eth"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/enode"
)
// Tests that fast sync is disabled after a successful sync cycle.
func TestFastSyncDisabling65(t *testing.T) { testFastSyncDisabling(t, eth.ETH65) }
func TestFastSyncDisabling66(t *testing.T) { testFastSyncDisabling(t, eth.ETH66) }
// Tests that fast sync gets disabled as soon as a real block is successfully
// imported into the blockchain.
func testFastSyncDisabling(t *testing.T, protocol uint) {
t.Parallel()
// Create an empty handler and ensure it's in fast sync mode
empty := newTestHandler()
if atomic.LoadUint32(&empty.handler.fastSync) == 0 {
t.Fatalf("fast sync disabled on pristine blockchain")
}
defer empty.close()
// Create a full handler and ensure fast sync ends up disabled
full := newTestHandlerWithBlocks(1024)
if atomic.LoadUint32(&full.handler.fastSync) == 1 {
t.Fatalf("fast sync not disabled on non-empty blockchain")
}
defer full.close()
// Sync up the two handlers
emptyPipe, fullPipe := p2p.MsgPipe()
defer emptyPipe.Close()
defer fullPipe.Close()
emptyPeer := eth.NewPeer(protocol, p2p.NewPeer(enode.ID{1}, "", nil), emptyPipe, empty.txpool)
fullPeer := eth.NewPeer(protocol, p2p.NewPeer(enode.ID{2}, "", nil), fullPipe, full.txpool)
defer emptyPeer.Close()
defer fullPeer.Close()
go empty.handler.runEthPeer(emptyPeer, func(peer *eth.Peer) error {
return eth.Handle((*ethHandler)(empty.handler), peer)
})
go full.handler.runEthPeer(fullPeer, func(peer *eth.Peer) error {
return eth.Handle((*ethHandler)(full.handler), peer)
})
// Wait a bit for the above handlers to start
time.Sleep(250 * time.Millisecond)
// Check that fast sync was disabled
op := peerToSyncOp(downloader.FastSync, empty.handler.peers.peerWithHighestTD())
if err := empty.handler.doSync(op); err != nil {
t.Fatal("sync failed:", err)
}
if atomic.LoadUint32(&empty.handler.fastSync) == 1 {
t.Fatalf("fast sync not disabled after successful synchronisation")
}
}