path: root/tests/transaction_test_util.go

package tests

import (
    "bytes"
    "fmt"
    "math/big"
    "runtime"

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

// Transaction Test JSON Format
type TtTransaction struct {
    Data     string
    GasLimit string
    GasPrice string
    Nonce    string
    R        string
    S        string
    To       string
    V        string
    Value    string
}

type TransactionTest struct {
    Rlp         string
    Sender      string
    Transaction TtTransaction
}

func RunTransactionTests(file string, notWorking map[string]bool) error {
    bt := make(map[string]TransactionTest)
    if err := LoadJSON(file, &bt); err != nil {
        return err
    }
    for name, in := range bt {
        var err error
        // TODO: remove this, we currently ignore some tests which are broken
        if !notWorking[name] {
            if err = runTest(in); err != nil {
                return fmt.Errorf("bad test %s: %v", name, err)
            }
            fmt.Println("Test passed:", name)
        }
    }
    return nil
}

func runTest(txTest TransactionTest) (err error) {
    expectedSender, expectedTo, expectedData, rlpBytes, expectedGasLimit, expectedGasPrice, expectedValue, expectedR, expectedS, expectedNonce, expectedV, err := convertTestTypes(txTest)

    if err != nil {
        if txTest.Sender == "" { // tx is invalid and this is expected (test OK)
            return nil
        } else {
            return err // tx is invalid and this is NOT expected (test FAIL)
        }
    }
    tx := new(types.Transaction)
    rlp.DecodeBytes(rlpBytes, tx)
    //fmt.Println("HURR tx: %v", tx)
    sender, err := tx.From()
    if err != nil {
        return err
    }

    if expectedSender != sender {
        return fmt.Errorf("Sender mismatch: %v %v", expectedSender, sender)
    }
    if !bytes.Equal(expectedData, tx.Payload) {
        return fmt.Errorf("Tx input data mismatch: %#v %#v", expectedData, tx.Payload)
    }
    if expectedGasLimit.Cmp(tx.GasLimit) != 0 {
        return fmt.Errorf("GasLimit mismatch: %v %v", expectedGasLimit, tx.GasLimit)
    }
    if expectedGasPrice.Cmp(tx.Price) != 0 {
        return fmt.Errorf("GasPrice mismatch: %v %v", expectedGasPrice, tx.Price)
    }
    if expectedNonce != tx.AccountNonce {
        return fmt.Errorf("Nonce mismatch: %v %v", expectedNonce, tx.AccountNonce)
    }
    if expectedR.Cmp(tx.R) != 0 {
        return fmt.Errorf("R mismatch: %v %v", expectedR, tx.R)
    }
    if expectedS.Cmp(tx.S) != 0 {
        return fmt.Errorf("S mismatch: %v %v", expectedS, tx.S)
    }
    if expectedV != uint64(tx.V) {
        return fmt.Errorf("V mismatch: %v %v", expectedV, uint64(tx.V))
    }
    if tx.Recipient == nil {
        if expectedTo != common.BytesToAddress([]byte{}) { // "empty" or "zero" address
            return fmt.Errorf("To mismatch when recipient is nil (contract creation): %v", expectedTo)
        }
    } else {
        if expectedTo != *tx.Recipient {
            return fmt.Errorf("To mismatch: %v %v", expectedTo, *tx.Recipient)
        }
    }

    if expectedValue.Cmp(tx.Amount) != 0 {
        return fmt.Errorf("Value mismatch: %v %v", expectedValue, tx.Amount)
    }

    return nil
}

func convertTestTypes(txTest TransactionTest) (sender, to common.Address,
    txInputData, rlpBytes []byte,
    gasLimit, gasPrice, value, r, s *big.Int,
    nonce, v uint64,
    err error) {

    defer func() {
        if recovered := recover(); recovered != nil {
            buf := make([]byte, 64<<10)
            buf = buf[:runtime.Stack(buf, false)]
            err = fmt.Errorf("%v\n%s", recovered, buf)
        }
    }()

    sender = mustConvertAddress(txTest.Sender)
    to = mustConvertAddress(txTest.Transaction.To)

    txInputData = mustConvertBytes(txTest.Transaction.Data)
    rlpBytes = mustConvertBytes(txTest.Rlp)

    gasLimit = mustConvertBigInt(txTest.Transaction.GasLimit)
    gasPrice = mustConvertBigInt(txTest.Transaction.GasPrice)
    value = mustConvertBigInt(txTest.Transaction.Value)

    r = common.Bytes2Big(mustConvertBytes(txTest.Transaction.R))
    s = common.Bytes2Big(mustConvertBytes(txTest.Transaction.S))

    nonce = mustConvertUint(txTest.Transaction.Nonce)
    v = mustConvertUint(txTest.Transaction.V)

    return sender, to, txInputData, rlpBytes, gasLimit, gasPrice, value, r, s, nonce, v, nil
}