github.com/klaytn/klaytn@v1.10.2/blockchain/types/transaction_signing_test.go

// Modifications Copyright 2018 The klaytn Authors
// Copyright 2016 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/>.
//
// This file is derived from core/types/transaction_signing_test.go (2018/06/04).
// Modified and improved for the klaytn development.

package types

import (
	"crypto/ecdsa"
	"math/big"
	"reflect"
	"runtime"
	"strings"
	"testing"

	"github.com/klaytn/klaytn/blockchain/types/accountkey"
	"github.com/stretchr/testify/assert"

	"github.com/klaytn/klaytn/common"
	"github.com/klaytn/klaytn/crypto"
	"github.com/klaytn/klaytn/rlp"
)

func TestLondonSigningWithoutChainID(t *testing.T) {
	key, _ := crypto.GenerateKey()
	addr := crypto.PubkeyToAddress(key.PublicKey)
	accessList := AccessList{{Address: common.HexToAddress("0x0000000000000000000000000000000000000001"), StorageKeys: []common.Hash{{0}}}}

	signer := NewLondonSigner(big.NewInt(10))
	tx, err := SignTx(NewTx(&TxInternalDataEthereumDynamicFee{
		AccountNonce: 1,
		Amount:       big.NewInt(10),
		GasFeeCap:    big.NewInt(10),
		GasTipCap:    big.NewInt(10),
		GasLimit:     100,
		AccessList:   accessList,
		Recipient:    &addr,
	}), signer, key)
	if err != nil {
		t.Fatal(err)
	}

	from, err := Sender(signer, tx)
	if from != addr {
		t.Errorf("exected from and address to be equal. Got %x want %x", from, addr)
	}
}

func TestLondonSigningWithChainID(t *testing.T) {
	key, _ := crypto.GenerateKey()
	addr := crypto.PubkeyToAddress(key.PublicKey)
	accessList := AccessList{{Address: common.HexToAddress("0x0000000000000000000000000000000000000001"), StorageKeys: []common.Hash{{0}}}}

	signer := NewLondonSigner(big.NewInt(10))
	tx, err := SignTx(NewTx(&TxInternalDataEthereumDynamicFee{
		AccountNonce: 1,
		Amount:       big.NewInt(10),
		GasFeeCap:    big.NewInt(10),
		GasTipCap:    big.NewInt(10),
		GasLimit:     100,
		AccessList:   accessList,
		Recipient:    &addr,
		ChainID:      big.NewInt(10),
	}), signer, key)
	if err != nil {
		t.Fatal(err)
	}

	from, err := Sender(signer, tx)
	if from != addr {
		t.Errorf("exected from and address to be equal. Got %x want %x", from, addr)
	}
}

func TestLondonSigningWithNoBitChainID(t *testing.T) {
	key, _ := crypto.GenerateKey()
	addr := crypto.PubkeyToAddress(key.PublicKey)
	accessList := AccessList{{Address: common.HexToAddress("0x0000000000000000000000000000000000000001"), StorageKeys: []common.Hash{{0}}}}

	signer := NewLondonSigner(big.NewInt(10))
	tx, err := SignTx(NewTx(&TxInternalDataEthereumDynamicFee{
		AccountNonce: 1,
		Amount:       big.NewInt(10),
		GasFeeCap:    big.NewInt(10),
		GasTipCap:    big.NewInt(10),
		GasLimit:     100,
		AccessList:   accessList,
		Recipient:    &addr,
		ChainID:      new(big.Int),
	}), signer, key)
	if err != nil {
		t.Fatal(err)
	}

	from, err := Sender(signer, tx)
	if from != addr {
		t.Errorf("exected from and address to be equal. Got %x want %x", from, addr)
	}
}

func TestEIP2930SigningWithoutChainID(t *testing.T) {
	key, _ := crypto.GenerateKey()
	addr := crypto.PubkeyToAddress(key.PublicKey)
	accessList := AccessList{{Address: common.HexToAddress("0x0000000000000000000000000000000000000001"), StorageKeys: []common.Hash{{0}}}}

	signer := NewEIP2930Signer(big.NewInt(10))
	tx, err := SignTx(NewTx(&TxInternalDataEthereumAccessList{
		AccountNonce: 1,
		Amount:       big.NewInt(10),
		Price:        big.NewInt(1),
		GasLimit:     100,
		AccessList:   accessList,
		Recipient:    &addr,
	}), signer, key)
	if err != nil {
		t.Fatal(err)
	}

	from, err := Sender(signer, tx)
	if from != addr {
		t.Errorf("exected from and address to be equal. Got %x want %x", from, addr)
	}
}

func TestEIP2930SigningWithChainID(t *testing.T) {
	key, _ := crypto.GenerateKey()
	addr := crypto.PubkeyToAddress(key.PublicKey)
	accessList := AccessList{{Address: common.HexToAddress("0x0000000000000000000000000000000000000001"), StorageKeys: []common.Hash{{0}}}}

	signer := NewEIP2930Signer(big.NewInt(10))
	tx, err := SignTx(NewTx(&TxInternalDataEthereumAccessList{
		AccountNonce: 1,
		Amount:       big.NewInt(10),
		Price:        big.NewInt(1),
		GasLimit:     100,
		AccessList:   accessList,
		Recipient:    &addr,
		ChainID:      big.NewInt(10),
	}), signer, key)
	if err != nil {
		t.Fatal(err)
	}

	from, err := Sender(signer, tx)
	if from != addr {
		t.Errorf("exected from and address to be equal. Got %x want %x", from, addr)
	}
}

func TestEIP2930SigningWithNoBitChainID(t *testing.T) {
	key, _ := crypto.GenerateKey()
	addr := crypto.PubkeyToAddress(key.PublicKey)
	accessList := AccessList{{Address: common.HexToAddress("0x0000000000000000000000000000000000000001"), StorageKeys: []common.Hash{{0}}}}

	signer := NewEIP2930Signer(big.NewInt(10))
	tx, err := SignTx(NewTx(&TxInternalDataEthereumAccessList{
		AccountNonce: 1,
		Amount:       big.NewInt(10),
		Price:        big.NewInt(1),
		GasLimit:     100,
		AccessList:   accessList,
		Recipient:    &addr,
		ChainID:      new(big.Int),
	}), signer, key)
	if err != nil {
		t.Fatal(err)
	}

	from, err := Sender(signer, tx)
	if from != addr {
		t.Errorf("exected from and address to be equal. Got %x want %x", from, addr)
	}
}

func TestEIP155Signing(t *testing.T) {
	key, _ := crypto.GenerateKey()
	addr := crypto.PubkeyToAddress(key.PublicKey)

	signer := NewEIP155Signer(big.NewInt(18))
	tx, err := SignTx(NewTransaction(0, addr, new(big.Int), 0, new(big.Int), nil), signer, key)
	if err != nil {
		t.Fatal(err)
	}

	from, err := Sender(signer, tx)
	if err != nil {
		t.Fatal(err)
	}
	if from != addr {
		t.Errorf("exected from and address to be equal. Got %x want %x", from, addr)
	}
}

func TestEIP155RawSignatureValues(t *testing.T) {
	key, _ := crypto.GenerateKey()
	addr := crypto.PubkeyToAddress(key.PublicKey)

	signer := NewEIP155Signer(big.NewInt(18))
	tx, err := SignTx(NewTransaction(0, addr, new(big.Int), 0, new(big.Int), nil), signer, key)
	if err != nil {
		t.Fatal(err)
	}

	h := signer.Hash(tx)
	sig, err := crypto.Sign(h[:], key)
	if err != nil {
		t.Fatal(err)
	}
	r, s, v, err := signer.SignatureValues(tx, sig)

	sigs := tx.RawSignatureValues()
	txV, txR, txS := sigs[0].V, sigs[0].R, sigs[0].S

	assert.Equal(t, r, txR)
	assert.Equal(t, s, txS)
	assert.Equal(t, v, txV)
}

func TestEIP155ChainId(t *testing.T) {
	key, _ := crypto.GenerateKey()
	addr := crypto.PubkeyToAddress(key.PublicKey)

	signer := NewEIP155Signer(big.NewInt(18))
	tx, err := SignTx(NewTransaction(0, addr, new(big.Int), 0, new(big.Int), nil), signer, key)
	if err != nil {
		t.Fatal(err)
	}

	if tx.ChainId().Cmp(signer.chainId) != 0 {
		t.Error("expected chainId to be", signer.chainId, "got", tx.ChainId())
	}
}

func TestEIP155SigningVitalik(t *testing.T) {
	// Test vectors come from http://vitalik.ca/files/eip155_testvec.txt
	for i, test := range []struct {
		txRlp, addr string
	}{
		{"f864808504a817c800825208943535353535353535353535353535353535353535808025a0044852b2a670ade5407e78fb2863c51de9fcb96542a07186fe3aeda6bb8a116da0044852b2a670ade5407e78fb2863c51de9fcb96542a07186fe3aeda6bb8a116d", "0xf0f6f18bca1b28cd68e4357452947e021241e9ce"},
		{"f864018504a817c80182a410943535353535353535353535353535353535353535018025a0489efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bcaa0489efdaa54c0f20c7adf612882df0950f5a951637e0307cdcb4c672f298b8bc6", "0x23ef145a395ea3fa3deb533b8a9e1b4c6c25d112"},
		{"f864028504a817c80282f618943535353535353535353535353535353535353535088025a02d7c5bef027816a800da1736444fb58a807ef4c9603b7848673f7e3a68eb14a5a02d7c5bef027816a800da1736444fb58a807ef4c9603b7848673f7e3a68eb14a5", "0x2e485e0c23b4c3c542628a5f672eeab0ad4888be"},
		{"f865038504a817c803830148209435353535353535353535353535353535353535351b8025a02a80e1ef1d7842f27f2e6be0972bb708b9a135c38860dbe73c27c3486c34f4e0a02a80e1ef1d7842f27f2e6be0972bb708b9a135c38860dbe73c27c3486c34f4de", "0x82a88539669a3fd524d669e858935de5e5410cf0"},
		{"f865048504a817c80483019a28943535353535353535353535353535353535353535408025a013600b294191fc92924bb3ce4b969c1e7e2bab8f4c93c3fc6d0a51733df3c063a013600b294191fc92924bb3ce4b969c1e7e2bab8f4c93c3fc6d0a51733df3c060", "0xf9358f2538fd5ccfeb848b64a96b743fcc930554"},
		{"f865058504a817c8058301ec309435353535353535353535353535353535353535357d8025a04eebf77a833b30520287ddd9478ff51abbdffa30aa90a8d655dba0e8a79ce0c1a04eebf77a833b30520287ddd9478ff51abbdffa30aa90a8d655dba0e8a79ce0c1", "0xa8f7aba377317440bc5b26198a363ad22af1f3a4"},
		{"f866068504a817c80683023e3894353535353535353535353535353535353535353581d88025a06455bf8ea6e7463a1046a0b52804526e119b4bf5136279614e0b1e8e296a4e2fa06455bf8ea6e7463a1046a0b52804526e119b4bf5136279614e0b1e8e296a4e2d", "0xf1f571dc362a0e5b2696b8e775f8491d3e50de35"},
		{"f867078504a817c807830290409435353535353535353535353535353535353535358201578025a052f1a9b320cab38e5da8a8f97989383aab0a49165fc91c737310e4f7e9821021a052f1a9b320cab38e5da8a8f97989383aab0a49165fc91c737310e4f7e9821021", "0xd37922162ab7cea97c97a87551ed02c9a38b7332"},
		{"f867088504a817c8088302e2489435353535353535353535353535353535353535358202008025a064b1702d9298fee62dfeccc57d322a463ad55ca201256d01f62b45b2e1c21c12a064b1702d9298fee62dfeccc57d322a463ad55ca201256d01f62b45b2e1c21c10", "0x9bddad43f934d313c2b79ca28a432dd2b7281029"},
		{"f867098504a817c809830334509435353535353535353535353535353535353535358202d98025a052f8f61201b2b11a78d6e866abc9c3db2ae8631fa656bfe5cb53668255367afba052f8f61201b2b11a78d6e866abc9c3db2ae8631fa656bfe5cb53668255367afb", "0x3c24d7329e92f84f08556ceb6df1cdb0104ca49f"},
	} {
		signer := NewEIP155Signer(big.NewInt(1))

		var tx *Transaction
		err := rlp.DecodeBytes(common.Hex2Bytes(test.txRlp), &tx)
		if err != nil {
			t.Errorf("%d: %v", i, err)
			continue
		}

		from, err := Sender(signer, tx)
		if err != nil {
			t.Errorf("%d: %v", i, err)
			continue
		}

		addr := common.HexToAddress(test.addr)
		if from != addr {
			t.Errorf("%d: expected %x got %x", i, addr, from)
		}

	}
}

func TestChainId(t *testing.T) {
	key, _ := defaultTestKey()

	tx := NewTransaction(0, common.Address{}, new(big.Int), 0, new(big.Int), nil)

	var err error
	tx, err = SignTx(tx, LatestSignerForChainID(big.NewInt(1)), key)
	if err != nil {
		t.Fatal(err)
	}

	_, err = Sender(LatestSignerForChainID(big.NewInt(2)), tx)
	if err != ErrInvalidChainId {
		t.Error("expected error:", ErrInvalidChainId)
	}

	_, err = Sender(LatestSignerForChainID(big.NewInt(1)), tx)
	if err != nil {
		t.Error("expected no error")
	}
}

// AccountKeyPickerForTest is an temporary object for testing.
// It simulates GetKey() instead of using `StateDB` directly in order to avoid cycle imports.
type AccountKeyPickerForTest struct {
	AddrKeyMap map[common.Address]accountkey.AccountKey
}

func (a *AccountKeyPickerForTest) GetKey(addr common.Address) accountkey.AccountKey {
	return a.AddrKeyMap[addr]
}

func (a *AccountKeyPickerForTest) SetKey(addr common.Address, key accountkey.AccountKey) {
	a.AddrKeyMap[addr] = key
}

func (a *AccountKeyPickerForTest) Exist(addr common.Address) bool {
	return a.AddrKeyMap[addr] != nil
}

type testTx func(t *testing.T)

// TestValidateTransaction tests validation process of transactions.
// To check that each tx makes a msg for the signature well,
// this test generates the msg manually and then performs validation process.
func TestValidateTransaction(t *testing.T) {
	testfns := []testTx{
		testValidateValueTransfer,
		testValidateFeeDelegatedValueTransfer,
		testValidateFeeDelegatedValueTransferWithRatio,
		testValidateValueTransferMemo,
		testValidateFeeDelegatedValueTransferMemo,
		testValidateFeeDelegatedValueTransferMemoWithRatio,
		testValidateAccountUpdate,
		testValidateFeeDelegatedAccountUpdate,
		testValidateFeeDelegatedAccountUpdateWithRatio,
		testValidateSmartContractDeploy,
		testValidateFeeDelegatedSmartContractDeploy,
		testValidateFeeDelegatedSmartContractDeployWithRatio,
		testValidateSmartContractExecution,
		testValidateFeeDelegatedSmartContractExecution,
		testValidateFeeDelegatedSmartContractExecutionWithRatio,
		testValidateCancel,
		testValidateFeeDelegatedCancel,
		testValidateFeeDelegatedCancelWithRatio,
		testValidateChainDataAnchoring,
		testValidateFeeDelegatedChainDataAnchoring,
		testValidateFeeDelegatedChainDataAnchoringWithRatio,
	}

	for _, fn := range testfns {
		fnname := getFunctionName(fn)
		fnname = fnname[strings.LastIndex(fnname, ".")+1:]
		t.Run(fnname, func(t *testing.T) {
			t.Parallel()
			fn(t)
		})
	}
}

func testValidateValueTransfer(t *testing.T) {
	// Transaction generation
	internalTx := genValueTransferTransaction().(*TxInternalDataValueTransfer)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())
}

func testValidateFeeDelegatedValueTransfer(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedValueTransferTransaction().(*TxInternalDataFeeDelegatedValueTransfer)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateFeeDelegatedValueTransferWithRatio(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedValueTransferWithRatioTransaction().(*TxInternalDataFeeDelegatedValueTransferWithRatio)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, feeRatio]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, feeRatio]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateValueTransferMemo(t *testing.T) {
	// Transaction generation
	internalTx := genValueTransferMemoTransaction().(*TxInternalDataValueTransferMemo)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())
}

func testValidateFeeDelegatedValueTransferMemo(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedValueTransferMemoTransaction().(*TxInternalDataFeeDelegatedValueTransferMemo)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateFeeDelegatedValueTransferMemoWithRatio(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedValueTransferMemoWithRatioTransaction().(*TxInternalDataFeeDelegatedValueTransferMemoWithRatio)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload, feeRatio]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload, feeRatio]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

//func testValidateAccountCreation(t *testing.T) {
//	// Transaction generation
//	internalTx := genAccountCreationTransaction().(*TxInternalDataAccountCreation)
//	tx := &Transaction{data: internalTx}
//
//	chainid := big.NewInt(1)
//	signer := NewEIP155Signer(chainid)
//
//	prv, from := defaultTestKey()
//	internalTx.From = from
//
//	// Sign
//	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, humanReadable, encodedKey]), chainid, 0, 0 ])
//	encodedKey, err := rlp.EncodeToBytes(accountkey.NewAccountKeySerializerWithAccountKey(internalTx.Key))
//	assert.Equal(t, nil, err)
//	b, err := rlp.EncodeToBytes([]interface{}{
//		internalTx.Type(),
//		internalTx.AccountNonce,
//		internalTx.Price,
//		internalTx.GasLimit,
//		internalTx.Recipient,
//		internalTx.Amount,
//		internalTx.From,
//		internalTx.HumanReadable,
//		encodedKey,
//	})
//	assert.Equal(t, nil, err)
//
//	h := rlpHash([]interface{}{
//		b,
//		chainid,
//		uint(0),
//		uint(0),
//	})
//
//	sig, err := NewTxSignaturesWithValues(signer, h, []*ecdsa.PrivateKey{prv})
//	assert.Equal(t, nil, err)
//
//	tx.SetSignature(sig)
//
//	// AccountKeyPicker initialization
//	p := &AccountKeyPickerForTest{
//		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
//	}
//	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
//	p.SetKey(from, key)
//
//	// Validate
//	_, err = tx.ValidateSender(signer, p, 0)
//	assert.Equal(t, nil, err)
//	assert.Equal(t, from, tx.ValidatedSender())
//}

func testValidateAccountUpdate(t *testing.T) {
	// Transaction generation
	internalTx := genAccountUpdateTransaction().(*TxInternalDataAccountUpdate)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, from, encodedKey]), chainid, 0, 0 ])
	encodedKey, err := rlp.EncodeToBytes(accountkey.NewAccountKeySerializerWithAccountKey(internalTx.Key))
	assert.Equal(t, nil, err)
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		encodedKey,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())
}

func testValidateFeeDelegatedAccountUpdate(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedAccountUpdateTransaction().(*TxInternalDataFeeDelegatedAccountUpdate)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, from, encodedKey]), chainid, 0, 0 ])
	encodedKey, err := rlp.EncodeToBytes(accountkey.NewAccountKeySerializerWithAccountKey(internalTx.Key))
	assert.Equal(t, nil, err)
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		encodedKey,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, from, encodedKey]), feePayer, chainid, 0, 0 ])
	encodedKey, err = rlp.EncodeToBytes(accountkey.NewAccountKeySerializerWithAccountKey(internalTx.Key))
	assert.Equal(t, nil, err)
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		encodedKey,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateFeeDelegatedAccountUpdateWithRatio(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedAccountUpdateWithRatioTransaction().(*TxInternalDataFeeDelegatedAccountUpdateWithRatio)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, from, encodedKey, feeRatio]), chainid, 0, 0 ])
	encodedKey, err := rlp.EncodeToBytes(accountkey.NewAccountKeySerializerWithAccountKey(internalTx.Key))
	assert.Equal(t, nil, err)
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		encodedKey,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, from, encodedKey, feeRatio]), feePayer, chainid, 0, 0 ])
	encodedKey, err = rlp.EncodeToBytes(accountkey.NewAccountKeySerializerWithAccountKey(internalTx.Key))
	assert.Equal(t, nil, err)
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		encodedKey,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateSmartContractDeploy(t *testing.T) {
	// Transaction generation
	internalTx := genSmartContractDeployTransaction().(*TxInternalDataSmartContractDeploy)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload, humanReadable]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
		internalTx.HumanReadable,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())
}

func testValidateFeeDelegatedSmartContractDeploy(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedSmartContractDeployTransaction().(*TxInternalDataFeeDelegatedSmartContractDeploy)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload, humanReadable]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
		internalTx.HumanReadable,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload, humanReadable]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
		internalTx.HumanReadable,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateFeeDelegatedSmartContractDeployWithRatio(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedSmartContractDeployWithRatioTransaction().(*TxInternalDataFeeDelegatedSmartContractDeployWithRatio)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload, humanReadable, feeRatio]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
		internalTx.HumanReadable,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload, humanReadable, feeRatio]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
		internalTx.HumanReadable,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateSmartContractExecution(t *testing.T) {
	// Transaction generation
	internalTx := genSmartContractExecutionTransaction().(*TxInternalDataSmartContractExecution)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())
}

func testValidateFeeDelegatedSmartContractExecution(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedSmartContractExecutionTransaction().(*TxInternalDataFeeDelegatedSmartContractExecution)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateFeeDelegatedSmartContractExecutionWithRatio(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedSmartContractExecutionWithRatioTransaction().(*TxInternalDataFeeDelegatedSmartContractExecutionWithRatio)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload, feeRatio]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, payload, feeRatio]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.Recipient,
		internalTx.Amount,
		internalTx.From,
		internalTx.Payload,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateCancel(t *testing.T) {
	// Transaction generation
	internalTx := genCancelTransaction().(*TxInternalDataCancel)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, from]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())
}

func testValidateFeeDelegatedCancel(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedCancelTransaction().(*TxInternalDataFeeDelegatedCancel)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, from]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, from]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateFeeDelegatedCancelWithRatio(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedCancelWithRatioTransaction().(*TxInternalDataFeeDelegatedCancelWithRatio)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, from, feeRatio]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, from, feeRatio]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateChainDataAnchoring(t *testing.T) {
	// Transaction generation
	internalTx := genChainDataTransaction().(*TxInternalDataChainDataAnchoring)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, anchoredData]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		internalTx.Payload,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())
}

func testValidateFeeDelegatedChainDataAnchoring(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedChainDataTransaction().(*TxInternalDataFeeDelegatedChainDataAnchoring)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, anchoredData]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		internalTx.Payload,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, anchoredData]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		internalTx.Payload,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func testValidateFeeDelegatedChainDataAnchoringWithRatio(t *testing.T) {
	// Transaction generation
	internalTx := genFeeDelegatedChainDataWithRatioTransaction().(*TxInternalDataFeeDelegatedChainDataAnchoringWithRatio)
	tx := &Transaction{data: internalTx}

	chainid := big.NewInt(1)
	signer := LatestSignerForChainID(chainid)

	prv, from := defaultTestKey()
	internalTx.From = from

	feePayerPrv, err := crypto.HexToECDSA("b9d5558443585bca6f225b935950e3f6e69f9da8a5809a83f51c3365dff53936")
	assert.Equal(t, nil, err)
	feePayer := crypto.PubkeyToAddress(feePayerPrv.PublicKey)
	internalTx.FeePayer = feePayer

	// Sign
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, anchoredData, FeeRatio]), chainid, 0, 0 ])
	b, err := rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		internalTx.Payload,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h := rlpHash([]interface{}{
		b,
		chainid,
		uint(0),
		uint(0),
	})

	sig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{prv})
	assert.Equal(t, nil, err)

	tx.SetSignature(sig)

	// Sign fee payer
	// encode([ encode([type, nonce, gasPrice, gas, to, value, from, anchoredData, FeeRatio]), feePayer, chainid, 0, 0 ])
	b, err = rlp.EncodeToBytes([]interface{}{
		internalTx.Type(),
		internalTx.AccountNonce,
		internalTx.Price,
		internalTx.GasLimit,
		internalTx.From,
		internalTx.Payload,
		internalTx.FeeRatio,
	})
	assert.Equal(t, nil, err)

	h = rlpHash([]interface{}{
		b,
		feePayer,
		chainid,
		uint(0),
		uint(0),
	})

	feePayerSig, err := NewTxSignaturesWithValues(signer, tx, h, []*ecdsa.PrivateKey{feePayerPrv})
	assert.Equal(t, nil, err)

	tx.SetFeePayerSignatures(feePayerSig)

	// AccountKeyPicker initialization
	p := &AccountKeyPickerForTest{
		AddrKeyMap: make(map[common.Address]accountkey.AccountKey),
	}
	key := accountkey.NewAccountKeyPublicWithValue(&prv.PublicKey)
	p.SetKey(from, key)
	feePayerKey := accountkey.NewAccountKeyPublicWithValue(&feePayerPrv.PublicKey)
	p.SetKey(feePayer, feePayerKey)

	// Validate
	_, err = tx.ValidateSender(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, from, tx.ValidatedSender())

	// Validate fee payer
	_, err = tx.ValidateFeePayer(signer, p, 0)
	assert.Equal(t, nil, err)
	assert.Equal(t, feePayer, tx.ValidatedFeePayer())
}

func getFunctionName(i interface{}) string {
	return runtime.FuncForPC(reflect.ValueOf(i).Pointer()).Name()
}