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package tests
import (
"bytes"
"errors"
"fmt"
"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) error {
skipTest := make(map[string]bool, len(transSkipTests))
for _, name := range transSkipTests {
skipTest[name] = true
}
bt := make(map[string]TransactionTest)
if err := LoadJSON(file, &bt); err != nil {
return err
}
for name, test := range bt {
// if the test should be skipped, return
if skipTest[name] {
fmt.Println("Skipping state test", name)
return nil
}
// test the block
if err := runTest(test); err != nil {
return err
}
fmt.Println("Transaction test passed: ", name)
}
return nil
}
func runTest(txTest TransactionTest) (err error) {
tx := new(types.Transaction)
err = rlp.DecodeBytes(mustConvertBytes(txTest.Rlp), tx)
if err != nil {
if txTest.Sender == "" {
// RLP decoding failed and this is expected (test OK)
return nil
} else {
// RLP decoding failed but is expected to succeed (test FAIL)
return fmt.Errorf("RLP decoding failed when expected to succeed: ", err)
}
}
validationError := verifyTxFields(txTest, tx)
if txTest.Sender == "" {
if validationError != nil {
// RLP decoding works but validation should fail (test OK)
return nil
} else {
// RLP decoding works but validation should fail (test FAIL)
// (this should not be possible but added here for completeness)
return errors.New("Field validations succeeded but should fail")
}
}
if txTest.Sender != "" {
if validationError == nil {
// RLP decoding works and validations pass (test OK)
return nil
} else {
// RLP decoding works and validations pass (test FAIL)
return fmt.Errorf("Field validations failed after RLP decoding: ", validationError)
}
}
return errors.New("Should not happen: verify RLP decoding and field validation")
}
func verifyTxFields(txTest TransactionTest, decodedTx *types.Transaction) (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)
}
}()
decodedSender, err := decodedTx.From()
if err != nil {
return err
}
expectedSender := mustConvertAddress(txTest.Sender)
if expectedSender != decodedSender {
return fmt.Errorf("Sender mismatch: %v %v", expectedSender, decodedSender)
}
expectedData := mustConvertBytes(txTest.Transaction.Data)
if !bytes.Equal(expectedData, decodedTx.Payload) {
return fmt.Errorf("Tx input data mismatch: %#v %#v", expectedData, decodedTx.Payload)
}
expectedGasLimit := mustConvertBigInt(txTest.Transaction.GasLimit, 16)
if expectedGasLimit.Cmp(decodedTx.GasLimit) != 0 {
return fmt.Errorf("GasLimit mismatch: %v %v", expectedGasLimit, decodedTx.GasLimit)
}
expectedGasPrice := mustConvertBigInt(txTest.Transaction.GasPrice, 16)
if expectedGasPrice.Cmp(decodedTx.Price) != 0 {
return fmt.Errorf("GasPrice mismatch: %v %v", expectedGasPrice, decodedTx.Price)
}
expectedNonce := mustConvertUint(txTest.Transaction.Nonce, 16)
if expectedNonce != decodedTx.AccountNonce {
return fmt.Errorf("Nonce mismatch: %v %v", expectedNonce, decodedTx.AccountNonce)
}
expectedR := common.Bytes2Big(mustConvertBytes(txTest.Transaction.R))
if expectedR.Cmp(decodedTx.R) != 0 {
return fmt.Errorf("R mismatch: %v %v", expectedR, decodedTx.R)
}
expectedS := common.Bytes2Big(mustConvertBytes(txTest.Transaction.S))
if expectedS.Cmp(decodedTx.S) != 0 {
return fmt.Errorf("S mismatch: %v %v", expectedS, decodedTx.S)
}
expectedV := mustConvertUint(txTest.Transaction.V, 16)
if expectedV != uint64(decodedTx.V) {
return fmt.Errorf("V mismatch: %v %v", expectedV, uint64(decodedTx.V))
}
expectedTo := mustConvertAddress(txTest.Transaction.To)
if decodedTx.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 != *decodedTx.Recipient {
return fmt.Errorf("To mismatch: %v %v", expectedTo, *decodedTx.Recipient)
}
}
expectedValue := mustConvertBigInt(txTest.Transaction.Value, 16)
if expectedValue.Cmp(decodedTx.Amount) != 0 {
return fmt.Errorf("Value mismatch: %v %v", expectedValue, decodedTx.Amount)
}
return nil
}
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