Add TransactionTests wrapped as Go tests

* Add initial go wrapping for TransactionTests with some tests
  disabled in lieu of consistent HEX encodings and a few other
  pending bugfixes
* TODO: Consider better way of perhaps modelling each test in
  the JSON files as a single Go test, instead of one Go test per
  JSON file

1 files changed, 134 insertions, 0 deletions

diff --git a/tests/transaction_test_util.go b/tests/transaction_test_util.go
new file mode 100644
index 000000000..800891887
--- /dev/null
+++ b/tests/transaction_test_util.go
@@ -0,0 +1,134 @@
+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)
+
+	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 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 = mustConvertBigIntHex(txTest.Transaction.GasLimit)
+	gasPrice = mustConvertBigIntHex(txTest.Transaction.GasPrice)
+	value = mustConvertBigIntHex(txTest.Transaction.Value)
+
+	r = common.Bytes2Big(mustConvertBytes(txTest.Transaction.R))
+	s = common.Bytes2Big(mustConvertBytes(txTest.Transaction.S))
+
+	nonce = mustConvertUintHex(txTest.Transaction.Nonce)
+	v = mustConvertUintHex(txTest.Transaction.V)
+
+	return sender, to, txInputData, rlpBytes, gasLimit, gasPrice, value, r, s, nonce, v, nil
+}