430 lines
16 KiB
Go
430 lines
16 KiB
Go
// Copyright 2020 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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// Tests that abnormal program termination (i.e.crash) and restart doesn't leave
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// the database in some strange state with gaps in the chain, nor with block data
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// dangling in the future.
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package core
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import (
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"encoding/hex"
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"math/big"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/crypto"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/ethdb/memorydb"
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"github.com/ethereum/go-ethereum/params"
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)
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var (
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// testKey is a private key to use for funding a tester account.
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testKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
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contractCode, _ = hex.DecodeString("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")
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contractAddr = common.HexToAddress("0xe74a3c7427cda785e0000d42a705b1f3fd371e09")
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contractData1, _ = hex.DecodeString("b0483f480000000000000000000000000000000000000000000000000000000000000000")
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contractData2, _ = hex.DecodeString("b0483f480000000000000000000000000000000000000000000000000000000000000001")
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commonGas = 192138
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// testAddr is the Ethereum address of the tester account.
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testAddr = crypto.PubkeyToAddress(testKey.PublicKey)
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// testBlocks is the test parameters array for specific blocks.
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testBlocks = []testBlockParam{
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{
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// This txs params also used to default block.
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blockNr: 11,
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txs: []testTransactionParam{
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{
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to: &common.Address{0x01},
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value: big.NewInt(1),
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gasPrice: big.NewInt(params.InitialBaseFee),
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data: nil,
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},
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},
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},
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{
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blockNr: 12,
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txs: []testTransactionParam{
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{
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to: &common.Address{0x01},
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value: big.NewInt(1),
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gasPrice: big.NewInt(params.InitialBaseFee),
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data: nil,
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},
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{
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to: &common.Address{0x02},
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value: big.NewInt(2),
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gasPrice: big.NewInt(params.InitialBaseFee + 1),
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data: nil,
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},
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{
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to: nil,
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value: big.NewInt(0),
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gasPrice: big.NewInt(params.InitialBaseFee + 1),
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data: contractCode,
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},
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},
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},
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{
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blockNr: 13,
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txs: []testTransactionParam{
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{
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to: &common.Address{0x01},
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value: big.NewInt(1),
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gasPrice: big.NewInt(params.InitialBaseFee),
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data: nil,
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},
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{
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to: &common.Address{0x02},
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value: big.NewInt(2),
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gasPrice: big.NewInt(params.InitialBaseFee + 1),
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data: nil,
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},
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{
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to: &common.Address{0x03},
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value: big.NewInt(3),
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gasPrice: big.NewInt(params.InitialBaseFee + 2),
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data: nil,
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},
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{
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to: &contractAddr,
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value: big.NewInt(0),
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gasPrice: big.NewInt(params.InitialBaseFee + 2),
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data: contractData1,
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},
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},
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},
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{
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blockNr: 14,
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txs: []testTransactionParam{
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{
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to: &contractAddr,
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value: big.NewInt(0),
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gasPrice: big.NewInt(params.InitialBaseFee + 2),
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data: contractData2,
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},
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},
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},
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{
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blockNr: 15,
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txs: []testTransactionParam{},
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},
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}
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)
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type testTransactionParam struct {
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to *common.Address
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value *big.Int
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gasPrice *big.Int
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data []byte
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}
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type testBlockParam struct {
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blockNr int
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txs []testTransactionParam
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}
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// testBackend is a mock implementation of the live Ethereum message handler. Its
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// purpose is to allow testing the request/reply workflows and wire serialization
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// in the `eth` protocol without actually doing any data processing.
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type testBackend struct {
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db ethdb.Database
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chain *BlockChain
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}
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// newTestBackend creates an empty chain and wraps it into a mock backend.
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func newTestBackend(blocks int, light bool) *testBackend {
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return newTestBackendWithGenerator(blocks, light)
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}
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// newTestBackend creates a chain with a number of explicitly defined blocks and
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// wraps it into a mock backend.
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func newTestBackendWithGenerator(blocks int, lightProcess bool) *testBackend {
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signer := types.HomesteadSigner{}
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// Create a database pre-initialize with a genesis block
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db := rawdb.NewMemoryDatabase()
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db.SetDiffStore(memorydb.New())
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gspec := &Genesis{
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Config: params.TestChainConfig,
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Alloc: GenesisAlloc{testAddr: {Balance: big.NewInt(100000000000000000)}},
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BaseFee: big.NewInt(params.InitialBaseFee),
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}
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chain, _ := NewBlockChain(db, nil, gspec, nil, ethash.NewFaker(), vm.Config{}, nil, nil, EnablePersistDiff(860000))
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generator := func(i int, block *BlockGen) {
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// The chain maker doesn't have access to a chain, so the difficulty will be
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// lets unset (nil). Set it here to the correct value.
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block.SetCoinbase(testAddr)
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for idx, testBlock := range testBlocks {
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// Specific block setting, the index in this generator has 1 diff from specified blockNr.
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if i+1 == testBlock.blockNr {
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for _, testTransaction := range testBlock.txs {
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var transaction *types.Transaction
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if testTransaction.to == nil {
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transaction = types.NewContractCreation(block.TxNonce(testAddr),
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testTransaction.value, uint64(commonGas), testTransaction.gasPrice, testTransaction.data)
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} else {
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transaction = types.NewTransaction(block.TxNonce(testAddr), *testTransaction.to,
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testTransaction.value, uint64(commonGas), testTransaction.gasPrice, testTransaction.data)
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}
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tx, err := types.SignTx(transaction, signer, testKey)
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if err != nil {
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panic(err)
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}
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block.AddTxWithChain(chain, tx)
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}
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break
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}
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// Default block setting.
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if idx == len(testBlocks)-1 {
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// We want to simulate an empty middle block, having the same state as the
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// first one. The last is needs a state change again to force a reorg.
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for _, testTransaction := range testBlocks[0].txs {
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tx, err := types.SignTx(types.NewTransaction(block.TxNonce(testAddr), *testTransaction.to,
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testTransaction.value, uint64(commonGas), testTransaction.gasPrice, testTransaction.data), signer, testKey)
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if err != nil {
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panic(err)
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}
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block.AddTxWithChain(chain, tx)
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}
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}
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}
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}
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bs, _ := GenerateChain(params.TestChainConfig, chain.Genesis(), ethash.NewFaker(), db, blocks, generator)
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if _, err := chain.InsertChain(bs); err != nil {
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panic(err)
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}
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return &testBackend{
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db: db,
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chain: chain,
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}
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}
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// close tears down the transaction pool and chain behind the mock backend.
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func (b *testBackend) close() {
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b.chain.Stop()
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}
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func (b *testBackend) Chain() *BlockChain { return b.chain }
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func TestFreezeDiffLayer(t *testing.T) {
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blockNum := 1024
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fullBackend := newTestBackend(blockNum, true)
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defer fullBackend.close()
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for len(fullBackend.chain.diffQueueBuffer) > 0 {
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// Wait for the buffer to be zero.
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}
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// Minus one empty block.
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if fullBackend.chain.diffQueue.Size() != blockNum-1 {
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t.Errorf("size of diff queue is wrong, expected: %d, get: %d", blockNum-1, fullBackend.chain.diffQueue.Size())
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}
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time.Sleep(diffLayerFreezerRecheckInterval + 2*time.Second)
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if fullBackend.chain.diffQueue.Size() != int(fullBackend.chain.triesInMemory) {
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t.Errorf("size of diff queue is wrong, expected: %d, get: %d", blockNum, fullBackend.chain.diffQueue.Size())
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}
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block := fullBackend.chain.GetBlockByNumber(uint64(blockNum / 2))
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diffStore := fullBackend.chain.db.DiffStore()
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rawData := rawdb.ReadDiffLayerRLP(diffStore, block.Hash())
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if len(rawData) == 0 {
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t.Error("do not find diff layer in db")
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}
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}
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// newTwoForkedBlockchains returns two blockchains, these two chains are generated by different
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// generators, they have some same parent blocks, the number of same blocks are determined by
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// testBlocks, once chain1 inserted a non-default block, chain1 and chain2 get forked.
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func newTwoForkedBlockchains(len1, len2 int) (chain1 *BlockChain, chain2 *BlockChain) {
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signer := types.HomesteadSigner{}
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// Create a database pre-initialize with a genesis block
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db1 := rawdb.NewMemoryDatabase()
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db1.SetDiffStore(memorydb.New())
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gspec := &Genesis{
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Config: params.TestChainConfig,
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Alloc: GenesisAlloc{testAddr: {Balance: big.NewInt(100000000000000000)}},
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BaseFee: big.NewInt(params.InitialBaseFee),
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}
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engine1 := ethash.NewFaker()
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chain1, _ = NewBlockChain(db1, nil, gspec, nil, engine1, vm.Config{}, nil, nil, EnablePersistDiff(860000), EnableBlockValidator(params.TestChainConfig, engine1, 0, nil))
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generator1 := func(i int, block *BlockGen) {
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// The chain maker doesn't have access to a chain, so the difficulty will be
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// lets unset (nil). Set it here to the correct value.
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block.SetCoinbase(testAddr)
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for idx, testBlock := range testBlocks {
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// Specific block setting, the index in this generator has 1 diff from specified blockNr.
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if i+1 == testBlock.blockNr {
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for _, testTransaction := range testBlock.txs {
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var transaction *types.Transaction
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if testTransaction.to == nil {
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transaction = types.NewContractCreation(block.TxNonce(testAddr),
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testTransaction.value, uint64(commonGas), testTransaction.gasPrice, testTransaction.data)
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} else {
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transaction = types.NewTransaction(block.TxNonce(testAddr), *testTransaction.to,
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testTransaction.value, uint64(commonGas), testTransaction.gasPrice, testTransaction.data)
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}
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tx, err := types.SignTx(transaction, signer, testKey)
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if err != nil {
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panic(err)
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}
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block.AddTxWithChain(chain1, tx)
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}
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break
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}
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// Default block setting.
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if idx == len(testBlocks)-1 {
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// We want to simulate an empty middle block, having the same state as the
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// first one. The last is needs a state change again to force a reorg.
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for _, testTransaction := range testBlocks[0].txs {
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tx, err := types.SignTx(types.NewTransaction(block.TxNonce(testAddr), *testTransaction.to,
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testTransaction.value, uint64(commonGas), testTransaction.gasPrice, testTransaction.data), signer, testKey)
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if err != nil {
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panic(err)
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}
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block.AddTxWithChain(chain1, tx)
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}
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}
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}
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}
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bs1, _ := GenerateChain(params.TestChainConfig, chain1.Genesis(), ethash.NewFaker(), db1, len1, generator1)
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if _, err := chain1.InsertChain(bs1); err != nil {
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panic(err)
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}
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waitDifflayerCached(chain1, bs1)
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// Create a database pre-initialize with a genesis block
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db2 := rawdb.NewMemoryDatabase()
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db2.SetDiffStore(memorydb.New())
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gspec2 := &Genesis{
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Config: params.TestChainConfig,
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Alloc: GenesisAlloc{testAddr: {Balance: big.NewInt(100000000000000000)}},
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BaseFee: big.NewInt(params.InitialBaseFee),
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}
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engine2 := ethash.NewFaker()
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chain2, _ = NewBlockChain(db2, nil, gspec2, nil, ethash.NewFaker(), vm.Config{}, nil, nil, EnablePersistDiff(860000), EnableBlockValidator(params.TestChainConfig, engine2, 0, nil))
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generator2 := func(i int, block *BlockGen) {
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// The chain maker doesn't have access to a chain, so the difficulty will be
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// lets unset (nil). Set it here to the correct value.
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block.SetCoinbase(testAddr)
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// We want to simulate an empty middle block, having the same state as the
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// first one. The last is needs a state change again to force a reorg.
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for _, testTransaction := range testBlocks[0].txs {
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tx, err := types.SignTx(types.NewTransaction(block.TxNonce(testAddr), *testTransaction.to,
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testTransaction.value, uint64(commonGas), testTransaction.gasPrice, testTransaction.data), signer, testKey)
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if err != nil {
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panic(err)
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}
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block.AddTxWithChain(chain1, tx)
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}
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}
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bs2, _ := GenerateChain(params.TestChainConfig, chain2.Genesis(), ethash.NewFaker(), db2, len2, generator2)
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if _, err := chain2.InsertChain(bs2); err != nil {
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panic(err)
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}
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waitDifflayerCached(chain2, bs2)
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return chain1, chain2
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}
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func waitDifflayerCached(chain *BlockChain, bs types.Blocks) {
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for _, block := range bs {
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// wait for all difflayers to be cached
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for block.Header().TxHash != types.EmptyRootHash &&
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chain.GetTrustedDiffLayer(block.Hash()) == nil {
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time.Sleep(time.Second)
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}
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}
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}
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func testGetRootByDiffHash(t *testing.T, chain1, chain2 *BlockChain, blockNumber uint64, status types.VerifyStatus) {
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block2 := chain2.GetBlockByNumber(blockNumber)
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if block2 == nil {
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t.Fatalf("failed to find block, number: %v", blockNumber)
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}
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expect := VerifyResult{
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Status: status,
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BlockNumber: blockNumber,
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BlockHash: block2.Hash(),
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}
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if status.Code&0xff00 == types.StatusVerified.Code {
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expect.Root = block2.Root()
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}
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diffLayer2 := chain2.GetTrustedDiffLayer(block2.Hash())
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if diffLayer2 == nil {
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t.Fatal("failed to find diff layer")
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}
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diffHash2 := types.EmptyRootHash
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if status != types.StatusDiffHashMismatch {
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var err error
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diffHash2, err = CalculateDiffHash(diffLayer2)
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if err != nil {
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t.Fatalf("failed to compute diff hash: %v", err)
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}
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}
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if status == types.StatusPartiallyVerified {
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block1 := chain1.GetBlockByNumber(blockNumber)
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if block1 == nil {
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t.Fatalf("failed to find block, number: %v", blockNumber)
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}
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chain1.diffLayerCache.Remove(block1.Hash())
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}
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result := chain1.GetVerifyResult(blockNumber, block2.Hash(), diffHash2)
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if result.Status != expect.Status {
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t.Fatalf("failed to verify block, number: %v, expect status: %v, real status: %v", blockNumber, expect.Status, result.Status)
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}
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if result.Root != expect.Root {
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t.Fatalf("failed to verify block, number: %v, expect root: %v, real root: %v", blockNumber, expect.Root, result.Root)
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}
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}
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func TestGetRootByDiffHash(t *testing.T) {
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len1 := 23 // length of blockchain1
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len2 := 35 // length of blockchain2
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plen := 11 // length of same parent blocks, which determined by testBlocks.
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chain1, chain2 := newTwoForkedBlockchains(len1, len2)
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defer chain1.Stop()
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defer chain2.Stop()
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hash1 := chain1.GetBlockByNumber(uint64(plen)).Hash()
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hash2 := chain2.GetBlockByNumber(uint64(plen)).Hash()
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if hash1 != hash2 {
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t.Errorf("chain content mismatch at %d: have hash %v, want hash %v", plen, hash2, hash1)
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}
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testGetRootByDiffHash(t, chain1, chain2, 10, types.StatusFullVerified)
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testGetRootByDiffHash(t, chain1, chain2, 2, types.StatusPartiallyVerified)
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testGetRootByDiffHash(t, chain1, chain2, 10, types.StatusDiffHashMismatch)
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testGetRootByDiffHash(t, chain1, chain2, 12, types.StatusImpossibleFork)
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testGetRootByDiffHash(t, chain1, chain2, 20, types.StatusPossibleFork)
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testGetRootByDiffHash(t, chain1, chain2, 24, types.StatusBlockNewer)
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testGetRootByDiffHash(t, chain1, chain2, 35, types.StatusBlockTooNew)
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}
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