// InsertPreState populates the given database with the genesis // accounts defined by the test. func (t *BlockTest) InsertPreState(ethereum *eth.Ethereum) (*state.StateDB, error) { db := ethereum.StateDb() statedb := state.New(common.Hash{}, db) for addrString, acct := range t.preAccounts { addr, err := hex.DecodeString(addrString) if err != nil { return nil, err } code, err := hex.DecodeString(strings.TrimPrefix(acct.Code, "0x")) if err != nil { return nil, err } balance, ok := new(big.Int).SetString(acct.Balance, 0) if !ok { return nil, err } nonce, err := strconv.ParseUint(prepInt(16, acct.Nonce), 16, 64) if err != nil { return nil, err } if acct.PrivateKey != "" { privkey, err := hex.DecodeString(strings.TrimPrefix(acct.PrivateKey, "0x")) err = crypto.ImportBlockTestKey(privkey) err = ethereum.AccountManager().TimedUnlock(common.BytesToAddress(addr), "", 999999*time.Second) if err != nil { return nil, err } } obj := statedb.CreateAccount(common.HexToAddress(addrString)) obj.SetCode(code) obj.SetBalance(balance) obj.SetNonce(nonce) for k, v := range acct.Storage { statedb.SetState(common.HexToAddress(addrString), common.HexToHash(k), common.HexToHash(v)) } } // sync objects to trie statedb.SyncObjects() // sync trie to disk statedb.Sync() if !bytes.Equal(t.Genesis.Root().Bytes(), statedb.Root().Bytes()) { return nil, fmt.Errorf("computed state root does not match genesis block %x %x", t.Genesis.Root().Bytes()[:4], statedb.Root().Bytes()[:4]) } return statedb, nil }