// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package tests
import (
"bytes"
"errors"
"fmt"
"math/big"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
)
func checkLogs(tlog []Log, logs state.Logs) error {
if len(tlog) != len(logs) {
return fmt.Errorf("log length mismatch. Expected %d, got %d", len(tlog), len(logs))
} else {
for i, log := range tlog {
if common.HexToAddress(log.AddressF) != logs[i].Address {
return fmt.Errorf("log address expected %v got %x", log.AddressF, logs[i].Address)
}
if !bytes.Equal(logs[i].Data, common.FromHex(log.DataF)) {
return fmt.Errorf("log data expected %v got %x", log.DataF, logs[i].Data)
}
if len(log.TopicsF) != len(logs[i].Topics) {
return fmt.Errorf("log topics length expected %d got %d", len(log.TopicsF), logs[i].Topics)
} else {
for j, topic := range log.TopicsF {
if common.HexToHash(topic) != logs[i].Topics[j] {
return fmt.Errorf("log topic[%d] expected %v got %x", j, topic, logs[i].Topics[j])
}
}
}
genBloom := common.LeftPadBytes(types.LogsBloom(state.Logs{logs[i]}).Bytes(), 256)
if !bytes.Equal(genBloom, common.Hex2Bytes(log.BloomF)) {
return fmt.Errorf("bloom mismatch")
}
}
}
return nil
}
type Account struct {
Balance string
Code string
Nonce string
Storage map[string]string
}
type Log struct {
AddressF string `json:"address"`
DataF string `json:"data"`
TopicsF []string `json:"topics"`
BloomF string `json:"bloom"`
}
func (self Log) Address() []byte { return common.Hex2Bytes(self.AddressF) }
func (self Log) Data() []byte { return common.Hex2Bytes(self.DataF) }
func (self Log) RlpData() interface{} { return nil }
func (self Log) Topics() [][]byte {
t := make([][]byte, len(self.TopicsF))
for i, topic := range self.TopicsF {
t[i] = common.Hex2Bytes(topic)
}
return t
}
func StateObjectFromAccount(db common.Database, addr string, account Account) *state.StateObject {
obj := state.NewStateObject(common.HexToAddress(addr), db)
obj.SetBalance(common.Big(account.Balance))
if common.IsHex(account.Code) {
account.Code = account.Code[2:]
}
obj.SetCode(common.Hex2Bytes(account.Code))
obj.SetNonce(common.Big(account.Nonce).Uint64())
return obj
}
type VmEnv struct {
CurrentCoinbase string
CurrentDifficulty string
CurrentGasLimit string
CurrentNumber string
CurrentTimestamp interface{}
PreviousHash string
}
type VmTest struct {
Callcreates interface{}
//Env map[string]string
Env VmEnv
Exec map[string]string
Transaction map[string]string
Logs []Log
Gas string
Out string
Post map[string]Account
Pre map[string]Account
PostStateRoot string
}
type Env struct {
depth int
state *state.StateDB
skipTransfer bool
initial bool
Gas *big.Int
origin common.Address
//parent common.Hash
coinbase common.Address
number *big.Int
time uint64
difficulty *big.Int
gasLimit *big.Int
logs []vm.StructLog
vmTest bool
}
func NewEnv(state *state.StateDB) *Env {
return &Env{
state: state,
}
}
func (self *Env) StructLogs() []vm.StructLog {
return self.logs
}
func (self *Env) AddStructLog(log vm.StructLog) {
self.logs = append(self.logs, log)
}
func NewEnvFromMap(state *state.StateDB, envValues map[string]string, exeValues map[string]string) *Env {
env := NewEnv(state)
env.origin = common.HexToAddress(exeValues["caller"])
//env.parent = common.Hex2Bytes(envValues["previousHash"])
env.coinbase = common.HexToAddress(envValues["currentCoinbase"])
env.number = common.Big(envValues["currentNumber"])
env.time = common.Big(envValues["currentTimestamp"]).Uint64()
env.difficulty = common.Big(envValues["currentDifficulty"])
env.gasLimit = common.Big(envValues["currentGasLimit"])
env.Gas = new(big.Int)
return env
}
func (self *Env) Origin() common.Address { return self.origin }
func (self *Env) BlockNumber() *big.Int { return self.number }
//func (self *Env) PrevHash() []byte { return self.parent }
func (self *Env) Coinbase() common.Address { return self.coinbase }
func (self *Env) Time() uint64 { return self.time }
func (self *Env) Difficulty() *big.Int { return self.difficulty }
func (self *Env) State() *state.StateDB { return self.state }
func (self *Env) GasLimit() *big.Int { return self.gasLimit }
func (self *Env) VmType() vm.Type { return vm.StdVmTy }
func (self *Env) GetHash(n uint64) common.Hash {
return common.BytesToHash(crypto.Sha3([]byte(big.NewInt(int64(n)).String())))
}
func (self *Env) AddLog(log *state.Log) {
self.state.AddLog(log)
}
func (self *Env) Depth() int { return self.depth }
func (self *Env) SetDepth(i int) { self.depth = i }
func (self *Env) Transfer(from, to vm.Account, amount *big.Int) error {
if self.skipTransfer {
// ugly hack
if self.initial {
self.initial = false
return nil
}
if from.Balance().Cmp(amount) < 0 {
return errors.New("Insufficient balance in account")
}
return nil
}
return vm.Transfer(from, to, amount)
}
func (self *Env) vm(addr *common.Address, data []byte, gas, price, value *big.Int) *core.Execution {
exec := core.NewExecution(self, addr, data, gas, price, value)
return exec
}
func (self *Env) Call(caller vm.ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error) {
if self.vmTest && self.depth > 0 {
caller.ReturnGas(gas, price)
return nil, nil
}
exe := self.vm(&addr, data, gas, price, value)
ret, err := exe.Call(addr, caller)
self.Gas = exe.Gas
return ret, err
}
func (self *Env) CallCode(caller vm.ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error) {
if self.vmTest && self.depth > 0 {
caller.ReturnGas(gas, price)
return nil, nil
}
caddr := caller.Address()
exe := self.vm(&caddr, data, gas, price, value)
return exe.Call(addr, caller)
}
func (self *Env) Create(caller vm.ContextRef, data []byte, gas, price, value *big.Int) ([]byte, error, vm.ContextRef) {
exe := self.vm(nil, data, gas, price, value)
if self.vmTest {
caller.ReturnGas(gas, price)
nonce := self.state.GetNonce(caller.Address())
obj := self.state.GetOrNewStateObject(crypto.CreateAddress(caller.Address(), nonce))
return nil, nil, obj
} else {
return exe.Create(caller)
}
}
type Message struct {
from common.Address
to *common.Address
value, gas, price *big.Int
data []byte
nonce uint64
}
func NewMessage(from common.Address, to *common.Address, data []byte, value, gas, price *big.Int, nonce uint64) Message {
return Message{from, to, value, gas, price, data, nonce}
}
func (self Message) Hash() []byte { return nil }
func (self Message) From() (common.Address, error) { return self.from, nil }
func (self Message) To() *common.Address { return self.to }
func (self Message) GasPrice() *big.Int { return self.price }
func (self Message) Gas() *big.Int { return self.gas }
func (self Message) Value() *big.Int { return self.value }
func (self Message) Nonce() uint64 { return self.nonce }
func (self Message) Data() []byte { return self.data }
