213 lines
6.2 KiB
Go
213 lines
6.2 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 tests
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import (
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"bytes"
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"encoding/hex"
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"fmt"
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"math/big"
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"os"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/math"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/state"
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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/log"
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"github.com/ethereum/go-ethereum/params"
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)
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var (
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ForceJit bool
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EnableJit bool
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)
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func init() {
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log.Root().SetHandler(log.LvlFilterHandler(log.LvlCrit, log.StreamHandler(os.Stderr, log.TerminalFormat())))
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if os.Getenv("JITVM") == "true" {
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ForceJit = true
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EnableJit = true
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}
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}
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func checkLogs(tlog []Log, logs []*types.Log) error {
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if len(tlog) != len(logs) {
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return fmt.Errorf("log length mismatch. Expected %d, got %d", len(tlog), len(logs))
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} else {
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for i, log := range tlog {
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if common.HexToAddress(log.AddressF) != logs[i].Address {
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return fmt.Errorf("log address expected %v got %x", log.AddressF, logs[i].Address)
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}
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if !bytes.Equal(logs[i].Data, common.FromHex(log.DataF)) {
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return fmt.Errorf("log data expected %v got %x", log.DataF, logs[i].Data)
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}
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if len(log.TopicsF) != len(logs[i].Topics) {
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return fmt.Errorf("log topics length expected %d got %d", len(log.TopicsF), logs[i].Topics)
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} else {
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for j, topic := range log.TopicsF {
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if common.HexToHash(topic) != logs[i].Topics[j] {
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return fmt.Errorf("log topic[%d] expected %v got %x", j, topic, logs[i].Topics[j])
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}
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}
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}
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genBloom := common.LeftPadBytes(types.LogsBloom([]*types.Log{logs[i]}).Bytes(), 256)
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if !bytes.Equal(genBloom, common.Hex2Bytes(log.BloomF)) {
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return fmt.Errorf("bloom mismatch")
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}
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}
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}
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return nil
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}
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type Account struct {
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Balance string
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Code string
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Nonce string
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Storage map[string]string
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}
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type Log struct {
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AddressF string `json:"address"`
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DataF string `json:"data"`
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TopicsF []string `json:"topics"`
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BloomF string `json:"bloom"`
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}
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func (self Log) Address() []byte { return common.Hex2Bytes(self.AddressF) }
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func (self Log) Data() []byte { return common.Hex2Bytes(self.DataF) }
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func (self Log) RlpData() interface{} { return nil }
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func (self Log) Topics() [][]byte {
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t := make([][]byte, len(self.TopicsF))
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for i, topic := range self.TopicsF {
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t[i] = common.Hex2Bytes(topic)
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}
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return t
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}
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func makePreState(db ethdb.Database, accounts map[string]Account) *state.StateDB {
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statedb, _ := state.New(common.Hash{}, db)
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for addr, account := range accounts {
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insertAccount(statedb, addr, account)
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}
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return statedb
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}
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func insertAccount(state *state.StateDB, saddr string, account Account) {
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if common.IsHex(account.Code) {
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account.Code = account.Code[2:]
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}
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addr := common.HexToAddress(saddr)
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state.SetCode(addr, common.Hex2Bytes(account.Code))
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state.SetNonce(addr, math.MustParseUint64(account.Nonce))
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state.SetBalance(addr, math.MustParseBig256(account.Balance))
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for a, v := range account.Storage {
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state.SetState(addr, common.HexToHash(a), common.HexToHash(v))
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}
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}
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type VmEnv struct {
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CurrentCoinbase string
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CurrentDifficulty string
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CurrentGasLimit string
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CurrentNumber string
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CurrentTimestamp interface{}
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PreviousHash string
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}
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type VmTest struct {
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Callcreates interface{}
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//Env map[string]string
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Env VmEnv
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Exec map[string]string
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Transaction map[string]string
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Logs []Log
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Gas string
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Out string
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Post map[string]Account
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Pre map[string]Account
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PostStateRoot string
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}
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func NewEVMEnvironment(vmTest bool, chainConfig *params.ChainConfig, statedb *state.StateDB, envValues map[string]string, tx map[string]string) (*vm.EVM, core.Message) {
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var (
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data = common.FromHex(tx["data"])
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gas = math.MustParseBig256(tx["gasLimit"])
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price = math.MustParseBig256(tx["gasPrice"])
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value = math.MustParseBig256(tx["value"])
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nonce = math.MustParseUint64(tx["nonce"])
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)
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origin := common.HexToAddress(tx["caller"])
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if len(tx["secretKey"]) > 0 {
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key, _ := hex.DecodeString(tx["secretKey"])
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origin = crypto.PubkeyToAddress(crypto.ToECDSA(key).PublicKey)
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}
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var to *common.Address
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if len(tx["to"]) > 2 {
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t := common.HexToAddress(tx["to"])
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to = &t
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}
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msg := types.NewMessage(origin, to, nonce, value, gas, price, data, true)
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initialCall := true
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canTransfer := func(db vm.StateDB, address common.Address, amount *big.Int) bool {
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if vmTest {
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if initialCall {
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initialCall = false
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return true
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}
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}
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return core.CanTransfer(db, address, amount)
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}
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transfer := func(db vm.StateDB, sender, recipient common.Address, amount *big.Int) {
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if vmTest {
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return
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}
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core.Transfer(db, sender, recipient, amount)
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}
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context := vm.Context{
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CanTransfer: canTransfer,
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Transfer: transfer,
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GetHash: func(n uint64) common.Hash {
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return common.BytesToHash(crypto.Keccak256([]byte(big.NewInt(int64(n)).String())))
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},
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Origin: origin,
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Coinbase: common.HexToAddress(envValues["currentCoinbase"]),
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BlockNumber: math.MustParseBig256(envValues["currentNumber"]),
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Time: math.MustParseBig256(envValues["currentTimestamp"]),
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GasLimit: math.MustParseBig256(envValues["currentGasLimit"]),
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Difficulty: math.MustParseBig256(envValues["currentDifficulty"]),
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GasPrice: price,
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}
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if context.GasPrice == nil {
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context.GasPrice = new(big.Int)
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}
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return vm.NewEVM(context, statedb, chainConfig, vm.Config{NoRecursion: vmTest}), msg
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}
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