path: root/tests/transaction_test_util.go

// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library 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 (
    "fmt"

    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/common/hexutil"
    "github.com/ethereum/go-ethereum/core"
    "github.com/ethereum/go-ethereum/core/types"
    "github.com/ethereum/go-ethereum/params"
    "github.com/ethereum/go-ethereum/rlp"
)

// TransactionTest checks RLP decoding and sender derivation of transactions.
type TransactionTest struct {
    RLP            hexutil.Bytes `json:"rlp"`
    Byzantium      ttFork
    Constantinople ttFork
    Istanbul       ttFork
    EIP150         ttFork
    EIP158         ttFork
    Frontier       ttFork
    Homestead      ttFork
}

type ttFork struct {
    Sender common.UnprefixedAddress `json:"sender"`
    Hash   common.UnprefixedHash    `json:"hash"`
}

func (tt *TransactionTest) Run(config *params.ChainConfig) error {

    validateTx := func(rlpData hexutil.Bytes, signer types.Signer, isHomestead bool, isIstanbul bool) (*common.Address, *common.Hash, error) {
        tx := new(types.Transaction)
        if err := rlp.DecodeBytes(rlpData, tx); err != nil {
            return nil, nil, err
        }
        sender, err := types.Sender(signer, tx)
        if err != nil {
            return nil, nil, err
        }
        // Intrinsic gas
        requiredGas, err := core.IntrinsicGas(tx.Data(), tx.To() == nil, isHomestead, isIstanbul)
        if err != nil {
            return nil, nil, err
        }
        if requiredGas > tx.Gas() {
            return nil, nil, fmt.Errorf("insufficient gas ( %d < %d )", tx.Gas(), requiredGas)
        }
        h := tx.Hash()
        return &sender, &h, nil
    }

    for _, testcase := range []struct {
        name        string
        signer      types.Signer
        fork        ttFork
        isHomestead bool
        isIstanbul  bool
    }{
        {"Frontier", types.FrontierSigner{}, tt.Frontier, false, false},
        {"Homestead", types.HomesteadSigner{}, tt.Homestead, true, false},
        {"EIP150", types.HomesteadSigner{}, tt.EIP150, true, false},
        {"EIP158", types.NewEIP155Signer(config.ChainID), tt.EIP158, true, false},
        {"Byzantium", types.NewEIP155Signer(config.ChainID), tt.Byzantium, true, false},
        {"Constantinople", types.NewEIP155Signer(config.ChainID), tt.Constantinople, true, false},
        //TODO! @holiman or @rjl493456442 : enable this after tests have been updated for Istanbul
        //{"Istanbul", types.NewEIP155Signer(config.ChainID), tt.Istanbul, true, true},
    } {
        sender, txhash, err := validateTx(tt.RLP, testcase.signer, testcase.isHomestead, testcase.isIstanbul)

        if testcase.fork.Sender == (common.UnprefixedAddress{}) {
            if err == nil {
                return fmt.Errorf("Expected error, got none (address %v)[%v]", sender.String(), testcase.name)
            }
            continue
        }
        // Should resolve the right address
        if err != nil {
            return fmt.Errorf("Got error, expected none: %v", err)
        }
        if sender == nil {
            return fmt.Errorf("sender was nil, should be %x", common.Address(testcase.fork.Sender))
        }
        if *sender != common.Address(testcase.fork.Sender) {
            return fmt.Errorf("Sender mismatch: got %x, want %x", sender, testcase.fork.Sender)
        }
        if txhash == nil {
            return fmt.Errorf("txhash was nil, should be %x", common.Hash(testcase.fork.Hash))
        }
        if *txhash != common.Hash(testcase.fork.Hash) {
            return fmt.Errorf("Hash mismatch: got %x, want %x", *txhash, testcase.fork.Hash)
        }
    }
    return nil
}