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package vm
import (
"bytes"
"math/big"
"strconv"
"testing"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethutil"
"github.com/ethereum/go-ethereum/state"
"github.com/ethereum/go-ethereum/tests/helper"
)
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 ethutil.Hex2Bytes(self.AddressF) }
func (self Log) Data() []byte { return ethutil.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] = ethutil.Hex2Bytes(topic)
}
return t
}
func StateObjectFromAccount(addr string, account Account) *state.StateObject {
obj := state.NewStateObject(ethutil.Hex2Bytes(addr))
obj.SetBalance(ethutil.Big(account.Balance))
if ethutil.IsHex(account.Code) {
account.Code = account.Code[2:]
}
obj.Code = ethutil.Hex2Bytes(account.Code)
obj.Nonce = ethutil.Big(account.Nonce).Uint64()
return obj
}
type Env struct {
CurrentCoinbase string
CurrentDifficulty string
CurrentGasLimit string
CurrentNumber string
CurrentTimestamp interface{}
PreviousHash string
}
type VmTest struct {
Callcreates interface{}
//Env map[string]string
Env Env
Exec map[string]string
Transaction map[string]string
Logs []Log
Gas string
Out string
Post map[string]Account
Pre map[string]Account
}
func RunVmTest(p string, t *testing.T) {
tests := make(map[string]VmTest)
helper.CreateFileTests(t, p, &tests)
for name, test := range tests {
statedb := state.New(helper.NewTrie())
for addr, account := range test.Pre {
obj := StateObjectFromAccount(addr, account)
statedb.SetStateObject(obj)
}
// XXX Yeah, yeah...
env := make(map[string]string)
env["currentCoinbase"] = test.Env.CurrentCoinbase
env["currentDifficulty"] = test.Env.CurrentDifficulty
env["currentGasLimit"] = test.Env.CurrentGasLimit
env["currentNumber"] = test.Env.CurrentNumber
env["previousHash"] = test.Env.PreviousHash
if n, ok := test.Env.CurrentTimestamp.(float64); ok {
env["currentTimestamp"] = strconv.Itoa(int(n))
} else {
env["currentTimestamp"] = test.Env.CurrentTimestamp.(string)
}
var (
ret []byte
gas *big.Int
err error
logs state.Logs
)
if len(test.Exec) > 0 {
ret, logs, gas, err = helper.RunVm(statedb, env, test.Exec)
} else {
ret, logs, gas, err = helper.RunState(statedb, env, test.Transaction)
}
// When an error is returned it doesn't always mean the tests fails.
// Have to come up with some conditional failing mechanism.
if err != nil {
helper.Log.Infoln(err)
}
rexp := helper.FromHex(test.Out)
if bytes.Compare(rexp, ret) != 0 {
t.Errorf("%s's return failed. Expected %x, got %x\n", name, rexp, ret)
}
if len(test.Gas) > 0 {
gexp := ethutil.Big(test.Gas)
if gexp.Cmp(gas) != 0 {
t.Errorf("%s's gas failed. Expected %v, got %v\n", name, gexp, gas)
}
}
for addr, account := range test.Post {
obj := statedb.GetStateObject(helper.FromHex(addr))
for addr, value := range account.Storage {
v := obj.GetState(helper.FromHex(addr)).Bytes()
vexp := helper.FromHex(value)
if bytes.Compare(v, vexp) != 0 {
t.Errorf("%s's : (%x: %s) storage failed. Expected %x, got %x (%v %v)\n", name, obj.Address()[0:4], addr, vexp, v, ethutil.BigD(vexp), ethutil.BigD(v))
}
}
}
if len(test.Logs) > 0 {
// Logs within the test itself aren't correct, missing empty fields (32 0s)
for i, log := range test.Logs {
genBloom := ethutil.LeftPadBytes(types.LogsBloom(state.Logs{logs[i]}).Bytes(), 64)
if !bytes.Equal(genBloom, ethutil.Hex2Bytes(log.BloomF)) {
t.Errorf("bloom mismatch")
}
}
}
}
}
// I've created a new function for each tests so it's easier to identify where the problem lies if any of them fail.
func TestVMArithmetic(t *testing.T) {
const fn = "../files/vmtests/vmArithmeticTest.json"
RunVmTest(fn, t)
}
func TestBitwiseLogicOperation(t *testing.T) {
const fn = "../files/vmtests/vmBitwiseLogicOperationTest.json"
RunVmTest(fn, t)
}
func TestBlockInfo(t *testing.T) {
const fn = "../files/vmtests/vmBlockInfoTest.json"
RunVmTest(fn, t)
}
func TestEnvironmentalInfo(t *testing.T) {
const fn = "../files/vmtests/vmEnvironmentalInfoTest.json"
RunVmTest(fn, t)
}
func TestFlowOperation(t *testing.T) {
const fn = "../files/vmtests/vmIOandFlowOperationsTest.json"
RunVmTest(fn, t)
}
func TestPushDupSwap(t *testing.T) {
const fn = "../files/vmtests/vmPushDupSwapTest.json"
RunVmTest(fn, t)
}
func TestVMSha3(t *testing.T) {
const fn = "../files/vmtests/vmSha3Test.json"
RunVmTest(fn, t)
}
func TestVm(t *testing.T) {
const fn = "../files/vmtests/vmtests.json"
RunVmTest(fn, t)
}
func TestVmLog(t *testing.T) {
const fn = "../files/vmtests/vmLogTest.json"
RunVmTest(fn, t)
}
func TestStateSystemOperations(t *testing.T) {
const fn = "../files/StateTests/stSystemOperationsTest.json"
RunVmTest(fn, t)
}
func TestStatePreCompiledContracts(t *testing.T) {
const fn = "../files/StateTests/stPreCompiledContracts.json"
RunVmTest(fn, t)
}
func TestStateRecursiveCreate(t *testing.T) {
const fn = "../files/StateTests/stRecursiveCreate.json"
RunVmTest(fn, t)
}
func TestStateSpecialTest(t *testing.T) {
const fn = "../files/StateTests/stSpecialTest.json"
RunVmTest(fn, t)
}
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