github.com/kisexp/xdchain@v0.0.0-20211206025815-490d6b732aa7/eth/sync_test.go (about)

     1  // Copyright 2015 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package eth
    18  
    19  import (
    20  	"sync/atomic"
    21  	"testing"
    22  	"time"
    23  
    24  	"github.com/kisexp/xdchain/eth/downloader"
    25  	"github.com/kisexp/xdchain/p2p"
    26  	"github.com/kisexp/xdchain/p2p/enode"
    27  )
    28  
    29  func TestFastSyncDisabling63(t *testing.T) { testFastSyncDisabling(t, 63) }
    30  func TestFastSyncDisabling64(t *testing.T) { testFastSyncDisabling(t, 64) }
    31  func TestFastSyncDisabling65(t *testing.T) { testFastSyncDisabling(t, 65) }
    32  
    33  // Tests that fast sync gets disabled as soon as a real block is successfully
    34  // imported into the blockchain.
    35  func testFastSyncDisabling(t *testing.T, protocol int) {
    36  	t.Parallel()
    37  
    38  	// Create a pristine protocol manager, check that fast sync is left enabled
    39  	pmEmpty, _ := newTestProtocolManagerMust(t, downloader.FastSync, 0, nil, nil)
    40  	if atomic.LoadUint32(&pmEmpty.fastSync) == 0 {
    41  		t.Fatalf("fast sync disabled on pristine blockchain")
    42  	}
    43  	// Create a full protocol manager, check that fast sync gets disabled
    44  	pmFull, _ := newTestProtocolManagerMust(t, downloader.FastSync, 1024, nil, nil)
    45  	if atomic.LoadUint32(&pmFull.fastSync) == 1 {
    46  		t.Fatalf("fast sync not disabled on non-empty blockchain")
    47  	}
    48  
    49  	// Sync up the two peers
    50  	io1, io2 := p2p.MsgPipe()
    51  	go pmFull.handle(pmFull.newPeer(protocol, p2p.NewPeer(enode.ID{}, "empty", nil), io2, pmFull.txpool.Get), protocolName)
    52  	go pmEmpty.handle(pmEmpty.newPeer(protocol, p2p.NewPeer(enode.ID{}, "full", nil), io1, pmEmpty.txpool.Get), protocolName)
    53  
    54  	time.Sleep(250 * time.Millisecond)
    55  	op := peerToSyncOp(downloader.FastSync, pmEmpty.peers.BestPeer())
    56  	if err := pmEmpty.doSync(op); err != nil {
    57  		t.Fatal("sync failed:", err)
    58  	}
    59  
    60  	// Check that fast sync was disabled
    61  	if atomic.LoadUint32(&pmEmpty.fastSync) == 1 {
    62  		t.Fatalf("fast sync not disabled after successful synchronisation")
    63  	}
    64  }