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package common
import (
"crypto/ecdsa"
"encoding/hex"
"log"
"math/big"
"testing"
ethCommon "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/iden3/go-iden3-crypto/babyjub"
"github.com/iden3/go-iden3-crypto/utils"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestNewL1UserTx(t *testing.T) {
toForge := int64(123456)
l1Tx := &L1Tx{
ToForgeL1TxsNum: &toForge,
Position: 71,
UserOrigin: true,
ToIdx: 301,
TokenID: 5,
Amount: big.NewInt(1),
DepositAmount: big.NewInt(2),
FromIdx: Idx(300),
}
l1Tx, err := NewL1Tx(l1Tx)
assert.NoError(t, err)
assert.Equal(t, "0x00a6cbae3b8661fb75b0919ca6605a02cfb04d9c6dd16870fa0fcdf01befa32768", l1Tx.TxID.String())
}
func TestNewL1CoordinatorTx(t *testing.T) {
batchNum := BatchNum(51966)
l1Tx := &L1Tx{
Position: 88,
UserOrigin: false,
ToIdx: 301,
TokenID: 5,
Amount: big.NewInt(1),
DepositAmount: big.NewInt(2),
FromIdx: Idx(300),
BatchNum: &batchNum,
}
l1Tx, err := NewL1Tx(l1Tx)
assert.NoError(t, err)
assert.Equal(t, "0x01274482d73df4dab34a1b6740adfca347a462513aa14e82f27b12f818d1b68c84", l1Tx.TxID.String())
}
func TestL1TxCompressedData(t *testing.T) {
// test vectors values generated from javascript implementation (using
// PoolL2Tx values)
amount, ok := new(big.Int).SetString("343597383670000000000000000000000000000000", 10)
require.True(t, ok)
tx := L1Tx{
FromIdx: (1 << 48) - 1,
ToIdx: (1 << 48) - 1,
Amount: amount,
TokenID: (1 << 32) - 1,
}
txCompressedData, err := tx.TxCompressedData(uint16((1 << 16) - 1))
assert.NoError(t, err)
expectedStr := "ffffffffffffffffffffffffffffffffffffc60be60f"
assert.Equal(t, expectedStr, hex.EncodeToString(txCompressedData.Bytes()))
tx = L1Tx{
FromIdx: 0,
ToIdx: 0,
Amount: big.NewInt(0),
TokenID: 0,
}
txCompressedData, err = tx.TxCompressedData(uint16(0))
assert.NoError(t, err)
expectedStr = "c60be60f"
assert.Equal(t, expectedStr, hex.EncodeToString(txCompressedData.Bytes()))
amount, ok = new(big.Int).SetString("63000000000000000", 10)
require.True(t, ok)
tx = L1Tx{
FromIdx: 324,
ToIdx: 256,
Amount: amount,
TokenID: 123,
}
txCompressedData, err = tx.TxCompressedData(uint16(1))
assert.NoError(t, err)
expectedStr = "7b0000000001000000000001440001c60be60f"
assert.Equal(t, expectedStr, hex.EncodeToString(txCompressedData.Bytes()))
tx = L1Tx{
FromIdx: 1,
ToIdx: 2,
TokenID: 3,
}
txCompressedData, err = tx.TxCompressedData(uint16(0))
assert.NoError(t, err)
expectedStr = "030000000000020000000000010000c60be60f"
assert.Equal(t, expectedStr, hex.EncodeToString(txCompressedData.Bytes()))
}
func TestBytesDataAvailability(t *testing.T) {
// test vectors values generated from javascript implementation
amount, ok := new(big.Int).SetString("343597383670000000000000000000000000000000", 10)
require.True(t, ok)
tx := L1Tx{
ToIdx: (1 << 16) - 1,
FromIdx: (1 << 16) - 1,
EffectiveAmount: amount,
}
txCompressedData, err := tx.BytesDataAvailability(16)
assert.NoError(t, err)
assert.Equal(t, "ffffffffffffffffff00", hex.EncodeToString(txCompressedData))
l1tx, err := L1TxFromDataAvailability(txCompressedData, 16)
require.NoError(t, err)
assert.Equal(t, tx.FromIdx, l1tx.FromIdx)
assert.Equal(t, tx.ToIdx, l1tx.ToIdx)
assert.Equal(t, tx.EffectiveAmount, l1tx.EffectiveAmount)
tx = L1Tx{
ToIdx: (1 << 32) - 1,
FromIdx: (1 << 32) - 1,
EffectiveAmount: amount,
}
txCompressedData, err = tx.BytesDataAvailability(32)
assert.NoError(t, err)
assert.Equal(t, "ffffffffffffffffffffffffff00", hex.EncodeToString(txCompressedData))
l1tx, err = L1TxFromDataAvailability(txCompressedData, 32)
require.NoError(t, err)
assert.Equal(t, tx.FromIdx, l1tx.FromIdx)
assert.Equal(t, tx.ToIdx, l1tx.ToIdx)
assert.Equal(t, tx.EffectiveAmount, l1tx.EffectiveAmount)
tx = L1Tx{
ToIdx: 0,
FromIdx: 0,
EffectiveAmount: big.NewInt(0),
}
txCompressedData, err = tx.BytesDataAvailability(32)
assert.NoError(t, err)
assert.Equal(t, "0000000000000000000000000000", hex.EncodeToString(txCompressedData))
l1tx, err = L1TxFromDataAvailability(txCompressedData, 32)
require.NoError(t, err)
assert.Equal(t, tx.FromIdx, l1tx.FromIdx)
assert.Equal(t, tx.ToIdx, l1tx.ToIdx)
assert.Equal(t, tx.EffectiveAmount, l1tx.EffectiveAmount)
tx = L1Tx{
ToIdx: 635,
FromIdx: 296,
EffectiveAmount: big.NewInt(1000000000000000000),
}
txCompressedData, err = tx.BytesDataAvailability(32)
assert.NoError(t, err)
assert.Equal(t, "000001280000027b42540be40000", hex.EncodeToString(txCompressedData))
l1tx, err = L1TxFromDataAvailability(txCompressedData, 32)
require.NoError(t, err)
assert.Equal(t, tx.FromIdx, l1tx.FromIdx)
assert.Equal(t, tx.ToIdx, l1tx.ToIdx)
assert.Equal(t, tx.EffectiveAmount, l1tx.EffectiveAmount)
}
func TestL1userTxByteParsers(t *testing.T) {
var pkComp babyjub.PublicKeyComp
pkCompL := []byte("0x56ca90f80d7c374ae7485e9bcc47d4ac399460948da6aeeb899311097925a72c")
err := pkComp.UnmarshalText(pkCompL)
require.NoError(t, err)
l1Tx := &L1Tx{
UserOrigin: true,
ToIdx: 3,
TokenID: 5,
Amount: big.NewInt(1),
DepositAmount: big.NewInt(2),
FromIdx: 2,
FromBJJ: pkComp,
FromEthAddr: ethCommon.HexToAddress("0xc58d29fA6e86E4FAe04DDcEd660d45BCf3Cb2370"),
}
encodedData, err := l1Tx.BytesUser()
require.NoError(t, err)
decodedData, err := L1UserTxFromBytes(encodedData)
require.NoError(t, err)
assert.Equal(t, l1Tx, decodedData)
encodedData2, err := decodedData.BytesUser()
require.NoError(t, err)
assert.Equal(t, encodedData, encodedData2)
// expect error if length!=68
_, err = L1UserTxFromBytes(encodedData[:66])
require.NotNil(t, err)
_, err = L1UserTxFromBytes([]byte{})
require.NotNil(t, err)
_, err = L1UserTxFromBytes(nil)
require.NotNil(t, err)
}
func TestL1TxByteParsersCompatibility(t *testing.T) {
// Data from compatibility test
var pkComp babyjub.PublicKeyComp
pkCompB, err := hex.DecodeString("0dd02deb2c81068e7a0f7e327df80b4ab79ee1f41a7def613e73a20c32eece5a")
require.NoError(t, err)
pkCompL := SwapEndianness(pkCompB)
err = pkComp.UnmarshalText([]byte(hex.EncodeToString(pkCompL)))
require.NoError(t, err)
depositAmount := new(big.Int)
depositAmount.SetString("100000000000000000000", 10)
l1Tx := &L1Tx{
ToIdx: 87865485,
TokenID: 2098076,
Amount: big.NewInt(2400000000000000000),
DepositAmount: depositAmount,
FromIdx: Idx(29767899),
FromBJJ: pkComp,
FromEthAddr: ethCommon.HexToAddress("0x85dab5b9e2e361d0c208d77be90efcc0439b0a53"),
UserOrigin: true,
}
encodedData, err := l1Tx.BytesUser()
require.NoError(t, err)
expected := "85dab5b9e2e361d0c208d77be90efcc0439b0a530dd02deb2c81068e7a0f7e327df80b4ab79ee1f41a7def613e73a20c32eece5a000001c638db52540be400459682f0000020039c0000053cb88d"
assert.Equal(t, expected, hex.EncodeToString(encodedData))
}
func TestL1CoordinatorTxByteParsers(t *testing.T) {
hermezAddress := ethCommon.HexToAddress("0xD6C850aeBFDC46D7F4c207e445cC0d6B0919BDBe")
chainID := big.NewInt(1337)
chainIDBytes := ethCommon.LeftPadBytes(chainID.Bytes(), 2)
privateKey, err := crypto.HexToECDSA("fad9c8855b740a0b7ed4c221dbad0f33a83a49cad6b3fe8d5817ac83d38b6a19")
require.NoError(t, err)
publicKey := privateKey.Public()
publicKeyECDSA, ok := publicKey.(*ecdsa.PublicKey)
if !ok {
log.Fatal("error casting public key to ECDSA")
}
publicKeyBytes := crypto.FromECDSAPub(publicKeyECDSA)
pubKey, err := crypto.UnmarshalPubkey(publicKeyBytes)
require.NoError(t, err)
fromEthAddr := crypto.PubkeyToAddress(*pubKey)
var pkComp babyjub.PublicKeyComp
pkCompL := []byte("56ca90f80d7c374ae7485e9bcc47d4ac399460948da6aeeb899311097925a72c")
err = pkComp.UnmarshalText(pkCompL)
require.NoError(t, err)
bytesMessage1 := []byte("\x19Ethereum Signed Message:\n120")
bytesMessage2 := []byte("I authorize this babyjubjub key for hermez rollup account creation")
babyjubB := SwapEndianness(pkComp[:])
var data []byte
data = append(data, bytesMessage1...)
data = append(data, bytesMessage2...)
data = append(data, babyjubB[:]...)
data = append(data, chainIDBytes...)
data = append(data, hermezAddress.Bytes()...)
hash := crypto.Keccak256Hash(data)
signature, err := crypto.Sign(hash.Bytes(), privateKey)
require.NoError(t, err)
// Ethereum adds 27 to v
v := int(signature[64])
signature[64] = byte(v + 27)
l1Tx := &L1Tx{
TokenID: 231,
FromBJJ: pkComp,
FromEthAddr: fromEthAddr,
Amount: big.NewInt(0),
DepositAmount: big.NewInt(0),
}
bytesCoordinatorL1, err := l1Tx.BytesCoordinatorTx(signature)
require.NoError(t, err)
l1txDecoded, err := L1CoordinatorTxFromBytes(bytesCoordinatorL1, chainID, hermezAddress)
require.NoError(t, err)
assert.Equal(t, l1Tx, l1txDecoded)
bytesCoordinatorL12, err := l1txDecoded.BytesCoordinatorTx(signature)
require.NoError(t, err)
assert.Equal(t, bytesCoordinatorL1, bytesCoordinatorL12)
// expect error if length!=68
_, err = L1CoordinatorTxFromBytes(bytesCoordinatorL1[:66], chainID, hermezAddress)
require.NotNil(t, err)
_, err = L1CoordinatorTxFromBytes([]byte{}, chainID, hermezAddress)
require.NotNil(t, err)
_, err = L1CoordinatorTxFromBytes(nil, chainID, hermezAddress)
require.NotNil(t, err)
}
func TestL1CoordinatorTxByteParsersCompatibility(t *testing.T) {
// Data from compatibility test
var signature []byte
r, err := hex.DecodeString("da71e5eb097e115405d84d1e7b464009b434b32c014a2df502d1f065ced8bc3b")
require.NoError(t, err)
s, err := hex.DecodeString("186d7122ff7f654cfed3156719774898d573900c86599a885a706dbdffe5ea8c")
require.NoError(t, err)
v, err := hex.DecodeString("1b")
require.NoError(t, err)
signature = append(signature, r[:]...)
signature = append(signature, s[:]...)
signature = append(signature, v[:]...)
var pkComp babyjub.PublicKeyComp
pkCompB, err := hex.DecodeString("a2c2807ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c")
require.NoError(t, err)
pkCompL := SwapEndianness(pkCompB)
err = pkComp.UnmarshalText([]byte(hex.EncodeToString(pkCompL)))
require.NoError(t, err)
// Data from the compatibility test
require.NoError(t, err)
l1Tx := &L1Tx{
TokenID: 231,
FromBJJ: pkComp,
}
encodeData, err := l1Tx.BytesCoordinatorTx(signature)
require.NoError(t, err)
expected, err := utils.HexDecode("1b186d7122ff7f654cfed3156719774898d573900c86599a885a706dbdffe5ea8cda71e5eb097e115405d84d1e7b464009b434b32c014a2df502d1f065ced8bc3ba2c2807ee39c3b3378738cff85a46a9465bb8fcf44ea597c33da9719be7c259c000000e7")
require.NoError(t, err)
assert.Equal(t, expected, encodeData)
}
func TestL1TxID(t *testing.T) {
// L1UserTx
i64_1 := int64(1)
i64_2 := int64(2)
tx0 := L1Tx{
UserOrigin: true,
ToForgeL1TxsNum: &i64_1,
Position: 1,
}
err := tx0.SetID()
require.NoError(t, err)
assert.Equal(t, TxIDPrefixL1UserTx, tx0.TxID[0])
// differ ToForgeL1TxsNum
tx1 := L1Tx{
UserOrigin: true,
ToForgeL1TxsNum: &i64_2,
Position: 1,
}
err = tx1.SetID()
require.NoError(t, err)
assert.NotEqual(t, tx0.TxID, tx1.TxID)
// differ Position
tx1 = L1Tx{
UserOrigin: true,
ToForgeL1TxsNum: &i64_1,
Position: 2,
}
err = tx1.SetID()
require.NoError(t, err)
assert.NotEqual(t, tx0.TxID, tx1.TxID)
// L1CoordinatorTx
bn1 := BatchNum(1)
bn2 := BatchNum(2)
tx0 = L1Tx{
UserOrigin: false,
BatchNum: &bn1,
Position: 1,
}
err = tx0.SetID()
require.NoError(t, err)
assert.Equal(t, TxIDPrefixL1CoordTx, tx0.TxID[0])
// differ BatchNum
tx1 = L1Tx{
UserOrigin: false,
BatchNum: &bn2,
Position: 1,
}
err = tx1.SetID()
require.NoError(t, err)
assert.NotEqual(t, tx0.TxID, tx1.TxID)
// differ Position
tx1 = L1Tx{
UserOrigin: false,
BatchNum: &bn1,
Position: 2,
}
err = tx1.SetID()
require.NoError(t, err)
assert.NotEqual(t, tx0.TxID, tx1.TxID)
}