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// Copyright 2016 The go-ethereum Authors | ||
// This file is part of go-ethereum. | ||
// | ||
// go-ethereum is free software: you can redistribute it and/or modify | ||
// it under the terms of the GNU General Public License as published by | ||
// the Free Software Foundation, either version 3 of the License, or | ||
// (at your option) any later version. | ||
// | ||
// go-ethereum 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 General Public License for more details. | ||
// | ||
// You should have received a copy of the GNU General Public License | ||
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>. | ||
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package main | ||
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import ( | ||
"io/ioutil" | ||
"math/big" | ||
"os" | ||
"testing" | ||
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"github.com/ethereum/go-ethereum/cmd/utils" | ||
"github.com/ethereum/go-ethereum/common" | ||
"github.com/ethereum/go-ethereum/consensus" | ||
"github.com/ethereum/go-ethereum/consensus/ethash" | ||
"github.com/ethereum/go-ethereum/core" | ||
"github.com/ethereum/go-ethereum/core/rawdb" | ||
"github.com/ethereum/go-ethereum/core/state/pruner" | ||
"github.com/ethereum/go-ethereum/core/types" | ||
"github.com/ethereum/go-ethereum/core/vm" | ||
"github.com/ethereum/go-ethereum/crypto" | ||
"github.com/ethereum/go-ethereum/eth" | ||
"github.com/ethereum/go-ethereum/eth/ethconfig" | ||
"github.com/ethereum/go-ethereum/ethdb" | ||
"github.com/ethereum/go-ethereum/log" | ||
"github.com/ethereum/go-ethereum/node" | ||
"github.com/ethereum/go-ethereum/params" | ||
) | ||
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// So we can deterministically seed different blockchains | ||
var ( | ||
canonicalSeed = 1 | ||
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testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291") | ||
// testAddr is the Ethereum address of the tester account. | ||
testAddr = crypto.PubkeyToAddress(testKey.PublicKey) | ||
) | ||
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func TestOfflineBlockPrune(t *testing.T) { | ||
datadir, err := ioutil.TempDir("", "") | ||
if err != nil { | ||
t.Fatalf("Failed to create temporary datadir: %v", err) | ||
} | ||
os.RemoveAll(datadir) | ||
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chaindbPath := datadir + "/chaindata" | ||
oldAncientPath := chaindbPath + "/ancient" | ||
newAncientPath := chaindbPath + "/ancient_back" | ||
//create a database with ancient freezer | ||
db, err := rawdb.NewLevelDBDatabaseWithFreezer(chaindbPath, 512, utils.MakeDatabaseHandles(), oldAncientPath, "", false) | ||
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if err != nil { | ||
t.Fatalf("failed to create database with ancient backend") | ||
} | ||
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testBlockPruneForOffSetZero(t, true, db, newAncientPath, oldAncientPath, chaindbPath) | ||
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} | ||
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func testBlockPruneForOffSetZero(t *testing.T, full bool, db ethdb.Database, backFreezer, oldfreezer, chaindbPath string) error { | ||
// Make chain starting from genesis | ||
blockchain, n, err := newCanonical(t, db, ethash.NewFaker(), 92000, full, chaindbPath) | ||
if err != nil { | ||
t.Fatalf("failed to make new canonical chain: %v", err) | ||
} | ||
defer blockchain.Stop() | ||
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testBlockPruner, err := pruner.NewBlockPruner(db, n, "", oldfreezer) | ||
if err != nil { | ||
t.Fatalf("failed to make new blockpruner: %v", err) | ||
} | ||
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db.Close() | ||
if err := testBlockPruner.BlockPruneBackUp(chaindbPath, 512, utils.MakeDatabaseHandles(), backFreezer, oldfreezer, "", false); err != nil { | ||
log.Error("Failed to back up block", "err", err) | ||
return err | ||
} | ||
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return nil | ||
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} | ||
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// newCanonical creates a chain database, and injects a deterministic canonical | ||
// chain. Depending on the full flag, if creates either a full block chain or a | ||
// header only chain. | ||
func newCanonical(t *testing.T, db ethdb.Database, engine consensus.Engine, height int, full bool, chaindbPath string) (*core.BlockChain, *node.Node, error) { | ||
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var ( | ||
key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291") | ||
address = crypto.PubkeyToAddress(key.PublicKey) | ||
funds = big.NewInt(1000000000) | ||
gspec = &core.Genesis{Config: params.TestChainConfig, Alloc: core.GenesisAlloc{address: {Balance: funds}}} | ||
genesis = gspec.MustCommit(db) | ||
) | ||
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// Initialize a fresh chain with only a genesis block | ||
blockchain, _ := core.NewBlockChain(db, nil, params.AllEthashProtocolChanges, engine, vm.Config{}, nil, nil) | ||
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// Full block-chain requested, same to GenerateChain func | ||
blocks := makeBlockChain(genesis, height, engine, db, canonicalSeed) | ||
_, err := blockchain.InsertChain(blocks) | ||
nd, _ := startEthService(t, gspec, blocks, chaindbPath) | ||
return blockchain, nd, err | ||
} | ||
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// makeBlockChain creates a deterministic chain of blocks rooted at parent. | ||
func makeBlockChain(parent *types.Block, n int, engine consensus.Engine, db ethdb.Database, seed int) []*types.Block { | ||
blocks, _ := core.GenerateChain(params.TestChainConfig, parent, engine, db, n, func(i int, b *core.BlockGen) { | ||
b.SetCoinbase(common.Address{0: byte(seed), 19: byte(i)}) | ||
}) | ||
return blocks | ||
} | ||
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// startEthService creates a full node instance for testing. | ||
func startEthService(t *testing.T, genesis *core.Genesis, blocks []*types.Block, chaindbPath string) (*node.Node, *eth.Ethereum) { | ||
t.Helper() | ||
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n, err := node.New(&node.Config{DataDir: chaindbPath}) | ||
if err != nil { | ||
t.Fatal("can't create node:", err) | ||
} | ||
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ethcfg := ðconfig.Config{Genesis: genesis, Ethash: ethash.Config{PowMode: ethash.ModeFake}} | ||
ethservice, err := eth.New(n, ethcfg) | ||
if err != nil { | ||
t.Fatal("can't create eth service:", err) | ||
} | ||
if err := n.Start(); err != nil { | ||
t.Fatal("can't start node:", err) | ||
} | ||
if _, err := ethservice.BlockChain().InsertChain(blocks); err != nil { | ||
n.Close() | ||
t.Fatal("can't import test blocks:", err) | ||
} | ||
ethservice.SetEtherbase(testAddr) | ||
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return n, ethservice | ||
} |
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