361 lines
10 KiB
Go
361 lines
10 KiB
Go
package tests
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import (
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"bytes"
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"errors"
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"fmt"
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"math/big"
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"strconv"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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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/logger"
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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 StateObjectFromAccount(db common.Database, addr string, account Account) *state.StateObject {
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obj := state.NewStateObject(common.HexToAddress(addr), db)
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obj.SetBalance(common.Big(account.Balance))
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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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obj.SetCode(common.Hex2Bytes(account.Code))
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obj.SetNonce(common.Big(account.Nonce).Uint64())
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return obj
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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 RunVmTest(p string, t *testing.T) {
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tests := make(map[string]VmTest)
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CreateFileTests(t, p, &tests)
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for name, test := range tests {
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/*
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vm.Debug = true
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glog.SetV(4)
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glog.SetToStderr(true)
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if name != "Call50000_sha256" {
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continue
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}
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*/
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db, _ := ethdb.NewMemDatabase()
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statedb := state.New(common.Hash{}, db)
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for addr, account := range test.Pre {
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obj := StateObjectFromAccount(db, addr, account)
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statedb.SetStateObject(obj)
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for a, v := range account.Storage {
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obj.SetState(common.HexToHash(a), common.HexToHash(v))
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}
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}
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// XXX Yeah, yeah...
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env := make(map[string]string)
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env["currentCoinbase"] = test.Env.CurrentCoinbase
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env["currentDifficulty"] = test.Env.CurrentDifficulty
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env["currentGasLimit"] = test.Env.CurrentGasLimit
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env["currentNumber"] = test.Env.CurrentNumber
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env["previousHash"] = test.Env.PreviousHash
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if n, ok := test.Env.CurrentTimestamp.(float64); ok {
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env["currentTimestamp"] = strconv.Itoa(int(n))
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} else {
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env["currentTimestamp"] = test.Env.CurrentTimestamp.(string)
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}
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var (
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ret []byte
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gas *big.Int
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err error
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logs state.Logs
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)
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ret, logs, gas, err = RunVm(statedb, env, test.Exec)
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rexp := common.FromHex(test.Out)
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if bytes.Compare(rexp, ret) != 0 {
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t.Errorf("%s's return failed. Expected %x, got %x\n", name, rexp, ret)
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}
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if len(test.Gas) == 0 && err == nil {
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t.Errorf("%s's gas unspecified, indicating an error. VM returned (incorrectly) successfull", name)
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} else {
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gexp := common.Big(test.Gas)
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if gexp.Cmp(gas) != 0 {
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t.Errorf("%s's gas failed. Expected %v, got %v\n", name, gexp, gas)
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}
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}
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for addr, account := range test.Post {
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obj := statedb.GetStateObject(common.HexToAddress(addr))
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if obj == nil {
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continue
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}
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for addr, value := range account.Storage {
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v := obj.GetState(common.HexToHash(addr))
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vexp := common.HexToHash(value)
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if v != vexp {
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t.Errorf("%s's : (%x: %s) storage failed. Expected %x, got %x (%v %v)\n", name, obj.Address().Bytes()[0:4], addr, vexp, v, vexp.Big(), v.Big())
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}
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}
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}
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if len(test.Logs) > 0 {
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if len(test.Logs) != len(logs) {
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t.Errorf("log length mismatch. Expected %d, got %d", len(test.Logs), len(logs))
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} else {
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for i, log := range test.Logs {
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if common.HexToAddress(log.AddressF) != logs[i].Address {
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t.Errorf("'%s' log address expected %v got %x", name, 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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t.Errorf("'%s' log data expected %v got %x", name, 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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t.Errorf("'%s' log topics length expected %d got %d", name, 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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t.Errorf("'%s' log topic[%d] expected %v got %x", name, 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(state.Logs{logs[i]}).Bytes(), 256)
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if !bytes.Equal(genBloom, common.Hex2Bytes(log.BloomF)) {
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t.Errorf("'%s' bloom mismatch", name)
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}
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}
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}
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}
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fmt.Println("VM test passed: ", name)
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//fmt.Println(string(statedb.Dump()))
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}
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// logger.Flush()
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}
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type Env struct {
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depth int
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state *state.StateDB
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skipTransfer bool
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initial bool
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Gas *big.Int
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origin common.Address
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//parent common.Hash
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coinbase common.Address
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number *big.Int
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time int64
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difficulty *big.Int
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gasLimit *big.Int
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logs state.Logs
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vmTest bool
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}
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func NewEnv(state *state.StateDB) *Env {
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return &Env{
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state: state,
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}
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}
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func NewEnvFromMap(state *state.StateDB, envValues map[string]string, exeValues map[string]string) *Env {
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env := NewEnv(state)
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env.origin = common.HexToAddress(exeValues["caller"])
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//env.parent = common.Hex2Bytes(envValues["previousHash"])
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env.coinbase = common.HexToAddress(envValues["currentCoinbase"])
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env.number = common.Big(envValues["currentNumber"])
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env.time = common.Big(envValues["currentTimestamp"]).Int64()
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env.difficulty = common.Big(envValues["currentDifficulty"])
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env.gasLimit = common.Big(envValues["currentGasLimit"])
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env.Gas = new(big.Int)
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return env
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}
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func (self *Env) Origin() common.Address { return self.origin }
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func (self *Env) BlockNumber() *big.Int { return self.number }
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//func (self *Env) PrevHash() []byte { return self.parent }
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func (self *Env) Coinbase() common.Address { return self.coinbase }
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func (self *Env) Time() int64 { return self.time }
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func (self *Env) Difficulty() *big.Int { return self.difficulty }
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func (self *Env) State() *state.StateDB { return self.state }
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func (self *Env) GasLimit() *big.Int { return self.gasLimit }
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func (self *Env) VmType() vm.Type { return vm.StdVmTy }
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func (self *Env) GetHash(n uint64) common.Hash {
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return common.BytesToHash(crypto.Sha3([]byte(big.NewInt(int64(n)).String())))
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}
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func (self *Env) AddLog(log *state.Log) {
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self.state.AddLog(log)
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}
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func (self *Env) Depth() int { return self.depth }
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func (self *Env) SetDepth(i int) { self.depth = i }
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func (self *Env) Transfer(from, to vm.Account, amount *big.Int) error {
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if self.skipTransfer {
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// ugly hack
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if self.initial {
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self.initial = false
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return nil
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}
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if from.Balance().Cmp(amount) < 0 {
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return errors.New("Insufficient balance in account")
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}
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return nil
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}
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return vm.Transfer(from, to, amount)
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}
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func (self *Env) vm(addr *common.Address, data []byte, gas, price, value *big.Int) *core.Execution {
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exec := core.NewExecution(self, addr, data, gas, price, value)
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return exec
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}
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func (self *Env) Call(caller vm.ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error) {
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if self.vmTest && self.depth > 0 {
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caller.ReturnGas(gas, price)
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return nil, nil
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}
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exe := self.vm(&addr, data, gas, price, value)
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ret, err := exe.Call(addr, caller)
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self.Gas = exe.Gas
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return ret, err
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}
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func (self *Env) CallCode(caller vm.ContextRef, addr common.Address, data []byte, gas, price, value *big.Int) ([]byte, error) {
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if self.vmTest && self.depth > 0 {
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caller.ReturnGas(gas, price)
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return nil, nil
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}
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caddr := caller.Address()
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exe := self.vm(&caddr, data, gas, price, value)
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return exe.Call(addr, caller)
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}
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func (self *Env) Create(caller vm.ContextRef, data []byte, gas, price, value *big.Int) ([]byte, error, vm.ContextRef) {
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exe := self.vm(nil, data, gas, price, value)
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if self.vmTest {
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caller.ReturnGas(gas, price)
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nonce := self.state.GetNonce(caller.Address())
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obj := self.state.GetOrNewStateObject(crypto.CreateAddress(caller.Address(), nonce))
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return nil, nil, obj
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} else {
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return exe.Create(caller)
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}
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}
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func RunVm(state *state.StateDB, env, exec map[string]string) ([]byte, state.Logs, *big.Int, error) {
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var (
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to = common.HexToAddress(exec["address"])
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from = common.HexToAddress(exec["caller"])
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data = common.FromHex(exec["data"])
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gas = common.Big(exec["gas"])
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price = common.Big(exec["gasPrice"])
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value = common.Big(exec["value"])
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)
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// Reset the pre-compiled contracts for VM tests.
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vm.Precompiled = make(map[string]*vm.PrecompiledAccount)
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caller := state.GetOrNewStateObject(from)
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vmenv := NewEnvFromMap(state, env, exec)
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vmenv.vmTest = true
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vmenv.skipTransfer = true
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vmenv.initial = true
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ret, err := vmenv.Call(caller, to, data, gas, price, value)
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return ret, vmenv.state.Logs(), vmenv.Gas, err
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}
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type Message struct {
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from common.Address
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to *common.Address
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value, gas, price *big.Int
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data []byte
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nonce uint64
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}
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func NewMessage(from common.Address, to *common.Address, data []byte, value, gas, price *big.Int, nonce uint64) Message {
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return Message{from, to, value, gas, price, data, nonce}
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}
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func (self Message) Hash() []byte { return nil }
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func (self Message) From() (common.Address, error) { return self.from, nil }
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func (self Message) To() *common.Address { return self.to }
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func (self Message) GasPrice() *big.Int { return self.price }
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func (self Message) Gas() *big.Int { return self.gas }
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func (self Message) Value() *big.Int { return self.value }
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func (self Message) Nonce() uint64 { return self.nonce }
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func (self Message) Data() []byte { return self.data }
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