56 lines
2.1 KiB
Go
56 lines
2.1 KiB
Go
// Copyright 2015 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library 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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// The go-ethereum library 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 the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package eth
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import (
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"sync/atomic"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/eth/downloader"
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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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// Tests that fast sync gets disabled as soon as a real block is successfully
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// imported into the blockchain.
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func TestFastSyncDisabling(t *testing.T) {
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// Create a pristine protocol manager, check that fast sync is left enabled
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pmEmpty := newTestProtocolManagerMust(t, downloader.FastSync, 0, nil, nil)
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if atomic.LoadUint32(&pmEmpty.fastSync) == 0 {
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t.Fatalf("fast sync disabled on pristine blockchain")
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}
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// Create a full protocol manager, check that fast sync gets disabled
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pmFull := newTestProtocolManagerMust(t, downloader.FastSync, 1024, nil, nil)
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if atomic.LoadUint32(&pmFull.fastSync) == 1 {
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t.Fatalf("fast sync not disabled on non-empty blockchain")
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}
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// Sync up the two peers
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io1, io2 := p2p.MsgPipe()
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go pmFull.handle(pmFull.newPeer(63, p2p.NewPeer(discover.NodeID{}, "empty", nil), io2))
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go pmEmpty.handle(pmEmpty.newPeer(63, p2p.NewPeer(discover.NodeID{}, "full", nil), io1))
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time.Sleep(250 * time.Millisecond)
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pmEmpty.synchronise(pmEmpty.peers.BestPeer())
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// Check that fast sync was disabled
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if atomic.LoadUint32(&pmEmpty.fastSync) == 1 {
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t.Fatalf("fast sync not disabled after successful synchronisation")
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}
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}
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