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package main
import (
"bytes"
"encoding/json"
"io/ioutil"
"log"
"os"
"strings"
"github.com/ethereum/go-ethereum/ethstate"
"github.com/ethereum/go-ethereum/ethutil"
"github.com/ethereum/go-ethereum/tests/helper"
)
type Account struct {
Balance string
Code string
Nonce string
Storage map[string]string
}
func StateObjectFromAccount(addr string, account Account) *ethstate.StateObject {
obj := ethstate.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 VmTest struct {
Callcreates interface{}
Env map[string]string
Exec map[string]string
Gas string
Out string
Post map[string]Account
Pre map[string]Account
}
func RunVmTest(js string) (failed int) {
tests := make(map[string]VmTest)
data, _ := ioutil.ReadAll(strings.NewReader(js))
err := json.Unmarshal(data, &tests)
if err != nil {
log.Fatalln(err)
}
for name, test := range tests {
state := ethstate.New(helper.NewTrie())
for addr, account := range test.Pre {
obj := StateObjectFromAccount(addr, account)
state.SetStateObject(obj)
}
ret, gas, err := helper.RunVm(state, test.Env, test.Exec)
// 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 {
log.Println(err)
}
rexp := helper.FromHex(test.Out)
if bytes.Compare(rexp, ret) != 0 {
log.Printf("%s's return failed. Expected %x, got %x\n", name, rexp, ret)
failed = 1
}
gexp := ethutil.Big(test.Gas)
if gexp.Cmp(gas) != 0 {
log.Printf("%s's gas failed. Expected %v, got %v\n", name, gexp, gas)
failed = 1
}
for addr, account := range test.Post {
obj := state.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 {
log.Printf("%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))
failed = 1
}
}
}
}
return
}
func main() {
helper.Logger.SetLogLevel(5)
if len(os.Args) == 1 {
log.Fatalln("no json supplied")
}
os.Exit(RunVmTest(os.Args[1]))
}
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