Official Go implementation of the Ethereum protocol
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go-ethereum/internal/ethapi/transaction_args_test.go

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// Copyright 2022 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/>.
package ethapi
import (
"context"
"errors"
"math/big"
"reflect"
"testing"
"time"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/consensus"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/bloombits"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/event"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
)
// TestSetFeeDefaults tests the logic for filling in default fee values works as expected.
func TestSetFeeDefaults(t *testing.T) {
type test struct {
name string
isLondon bool
in *TransactionArgs
want *TransactionArgs
err error
}
var (
b = newBackendMock()
zero = (*hexutil.Big)(big.NewInt(0))
fortytwo = (*hexutil.Big)(big.NewInt(42))
maxFee = (*hexutil.Big)(new(big.Int).Add(new(big.Int).Mul(b.current.BaseFee, big.NewInt(2)), fortytwo.ToInt()))
al = &types.AccessList{types.AccessTuple{Address: common.Address{0xaa}, StorageKeys: []common.Hash{{0x01}}}}
)
tests := []test{
// Legacy txs
{
"legacy tx pre-London",
false,
&TransactionArgs{},
&TransactionArgs{GasPrice: fortytwo},
nil,
},
{
"legacy tx pre-London with zero price",
false,
&TransactionArgs{GasPrice: zero},
&TransactionArgs{GasPrice: zero},
nil,
},
{
"legacy tx post-London, explicit gas price",
true,
&TransactionArgs{GasPrice: fortytwo},
&TransactionArgs{GasPrice: fortytwo},
nil,
},
{
"legacy tx post-London with zero price",
true,
&TransactionArgs{GasPrice: zero},
nil,
errors.New("gasPrice must be non-zero after london fork"),
},
// Access list txs
{
"access list tx pre-London",
false,
&TransactionArgs{AccessList: al},
&TransactionArgs{AccessList: al, GasPrice: fortytwo},
nil,
},
{
"access list tx post-London, explicit gas price",
false,
&TransactionArgs{AccessList: al, GasPrice: fortytwo},
&TransactionArgs{AccessList: al, GasPrice: fortytwo},
nil,
},
{
"access list tx post-London",
true,
&TransactionArgs{AccessList: al},
&TransactionArgs{AccessList: al, MaxFeePerGas: maxFee, MaxPriorityFeePerGas: fortytwo},
nil,
},
{
"access list tx post-London, only max fee",
true,
&TransactionArgs{AccessList: al, MaxFeePerGas: maxFee},
&TransactionArgs{AccessList: al, MaxFeePerGas: maxFee, MaxPriorityFeePerGas: fortytwo},
nil,
},
{
"access list tx post-London, only priority fee",
true,
&TransactionArgs{AccessList: al, MaxFeePerGas: maxFee},
&TransactionArgs{AccessList: al, MaxFeePerGas: maxFee, MaxPriorityFeePerGas: fortytwo},
nil,
},
// Dynamic fee txs
{
"dynamic tx post-London",
true,
&TransactionArgs{},
&TransactionArgs{MaxFeePerGas: maxFee, MaxPriorityFeePerGas: fortytwo},
nil,
},
{
"dynamic tx post-London, only max fee",
true,
&TransactionArgs{MaxFeePerGas: maxFee},
&TransactionArgs{MaxFeePerGas: maxFee, MaxPriorityFeePerGas: fortytwo},
nil,
},
{
"dynamic tx post-London, only priority fee",
true,
&TransactionArgs{MaxFeePerGas: maxFee},
&TransactionArgs{MaxFeePerGas: maxFee, MaxPriorityFeePerGas: fortytwo},
nil,
},
{
"dynamic fee tx pre-London, maxFee set",
false,
&TransactionArgs{MaxFeePerGas: maxFee},
nil,
errors.New("maxFeePerGas and maxPriorityFeePerGas are not valid before London is active"),
},
{
"dynamic fee tx pre-London, priorityFee set",
false,
&TransactionArgs{MaxPriorityFeePerGas: fortytwo},
nil,
errors.New("maxFeePerGas and maxPriorityFeePerGas are not valid before London is active"),
},
{
"dynamic fee tx, maxFee < priorityFee",
true,
&TransactionArgs{MaxFeePerGas: maxFee, MaxPriorityFeePerGas: (*hexutil.Big)(big.NewInt(1000))},
nil,
errors.New("maxFeePerGas (0x3e) < maxPriorityFeePerGas (0x3e8)"),
},
{
"dynamic fee tx, maxFee < priorityFee while setting default",
true,
&TransactionArgs{MaxFeePerGas: (*hexutil.Big)(big.NewInt(7))},
nil,
errors.New("maxFeePerGas (0x7) < maxPriorityFeePerGas (0x2a)"),
},
{
"dynamic fee tx post-London, explicit gas price",
true,
&TransactionArgs{MaxFeePerGas: zero, MaxPriorityFeePerGas: zero},
nil,
errors.New("maxFeePerGas must be non-zero"),
},
// Misc
{
"set all fee parameters",
false,
&TransactionArgs{GasPrice: fortytwo, MaxFeePerGas: maxFee, MaxPriorityFeePerGas: fortytwo},
nil,
errors.New("both gasPrice and (maxFeePerGas or maxPriorityFeePerGas) specified"),
},
{
"set gas price and maxPriorityFee",
false,
&TransactionArgs{GasPrice: fortytwo, MaxPriorityFeePerGas: fortytwo},
nil,
errors.New("both gasPrice and (maxFeePerGas or maxPriorityFeePerGas) specified"),
},
{
"set gas price and maxFee",
true,
&TransactionArgs{GasPrice: fortytwo, MaxFeePerGas: maxFee},
nil,
errors.New("both gasPrice and (maxFeePerGas or maxPriorityFeePerGas) specified"),
},
}
ctx := context.Background()
for i, test := range tests {
if test.isLondon {
b.activateLondon()
} else {
b.deactivateLondon()
}
got := test.in
err := got.setFeeDefaults(ctx, b)
if err != nil && err.Error() == test.err.Error() {
// Test threw expected error.
continue
} else if err != nil {
t.Fatalf("test %d (%s): unexpected error: %s", i, test.name, err)
}
if !reflect.DeepEqual(got, test.want) {
t.Fatalf("test %d (%s): did not fill defaults as expected: (got: %v, want: %v)", i, test.name, got, test.want)
}
}
}
type backendMock struct {
current *types.Header
config *params.ChainConfig
}
func newBackendMock() *backendMock {
config := &params.ChainConfig{
ChainID: big.NewInt(42),
HomesteadBlock: big.NewInt(0),
DAOForkBlock: nil,
DAOForkSupport: true,
EIP150Block: big.NewInt(0),
EIP155Block: big.NewInt(0),
EIP158Block: big.NewInt(0),
ByzantiumBlock: big.NewInt(0),
ConstantinopleBlock: big.NewInt(0),
PetersburgBlock: big.NewInt(0),
IstanbulBlock: big.NewInt(0),
MuirGlacierBlock: big.NewInt(0),
BerlinBlock: big.NewInt(0),
LondonBlock: big.NewInt(1000),
}
return &backendMock{
current: &types.Header{
Difficulty: big.NewInt(10000000000),
Number: big.NewInt(1100),
GasLimit: 8_000_000,
GasUsed: 8_000_000,
Time: 555,
Extra: make([]byte, 32),
BaseFee: big.NewInt(10),
},
config: config,
}
}
func (b *backendMock) activateLondon() {
b.current.Number = big.NewInt(1100)
}
func (b *backendMock) deactivateLondon() {
b.current.Number = big.NewInt(900)
}
func (b *backendMock) SuggestGasTipCap(ctx context.Context) (*big.Int, error) {
return big.NewInt(42), nil
}
func (b *backendMock) CurrentHeader() *types.Header { return b.current }
func (b *backendMock) ChainConfig() *params.ChainConfig { return b.config }
// Other methods needed to implement Backend interface.
func (b *backendMock) SyncProgress() ethereum.SyncProgress { return ethereum.SyncProgress{} }
func (b *backendMock) FeeHistory(ctx context.Context, blockCount uint64, lastBlock rpc.BlockNumber, rewardPercentiles []float64) (*big.Int, [][]*big.Int, []*big.Int, []float64, error) {
return nil, nil, nil, nil, nil
}
func (b *backendMock) ChainDb() ethdb.Database { return nil }
func (b *backendMock) AccountManager() *accounts.Manager { return nil }
func (b *backendMock) ExtRPCEnabled() bool { return false }
func (b *backendMock) RPCGasCap() uint64 { return 0 }
func (b *backendMock) RPCEVMTimeout() time.Duration { return time.Second }
func (b *backendMock) RPCTxFeeCap() float64 { return 0 }
func (b *backendMock) UnprotectedAllowed() bool { return false }
func (b *backendMock) SetHead(number uint64) {}
func (b *backendMock) HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Header, error) {
return nil, nil
}
func (b *backendMock) HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error) {
return nil, nil
}
func (b *backendMock) HeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Header, error) {
return nil, nil
}
func (b *backendMock) CurrentBlock() *types.Header { return nil }
func (b *backendMock) BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Block, error) {
return nil, nil
}
func (b *backendMock) BlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error) {
return nil, nil
}
func (b *backendMock) BlockByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*types.Block, error) {
return nil, nil
}
func (b *backendMock) GetBody(ctx context.Context, hash common.Hash, number rpc.BlockNumber) (*types.Body, error) {
return nil, nil
}
func (b *backendMock) StateAndHeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*state.StateDB, *types.Header, error) {
return nil, nil, nil
}
func (b *backendMock) StateAndHeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*state.StateDB, *types.Header, error) {
return nil, nil, nil
}
func (b *backendMock) PendingBlockAndReceipts() (*types.Block, types.Receipts) { return nil, nil }
func (b *backendMock) GetReceipts(ctx context.Context, hash common.Hash) (types.Receipts, error) {
return nil, nil
}
func (b *backendMock) GetLogs(ctx context.Context, blockHash common.Hash, number uint64) ([][]*types.Log, error) {
return nil, nil
}
func (b *backendMock) GetTd(ctx context.Context, hash common.Hash) *big.Int { return nil }
func (b *backendMock) GetEVM(ctx context.Context, msg *core.Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockCtx *vm.BlockContext) *vm.EVM {
return nil
}
func (b *backendMock) SubscribeChainEvent(ch chan<- core.ChainEvent) event.Subscription { return nil }
func (b *backendMock) SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription {
return nil
}
func (b *backendMock) SubscribeChainSideEvent(ch chan<- core.ChainSideEvent) event.Subscription {
return nil
}
func (b *backendMock) SendTx(ctx context.Context, signedTx *types.Transaction) error { return nil }
func (b *backendMock) GetTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, common.Hash, uint64, uint64, error) {
return nil, [32]byte{}, 0, 0, nil
}
func (b *backendMock) GetPoolTransactions() (types.Transactions, error) { return nil, nil }
func (b *backendMock) GetPoolTransaction(txHash common.Hash) *types.Transaction { return nil }
func (b *backendMock) GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error) {
return 0, nil
}
func (b *backendMock) Stats() (pending int, queued int) { return 0, 0 }
func (b *backendMock) TxPoolContent() (map[common.Address][]*types.Transaction, map[common.Address][]*types.Transaction) {
return nil, nil
}
func (b *backendMock) TxPoolContentFrom(addr common.Address) ([]*types.Transaction, []*types.Transaction) {
return nil, nil
}
func (b *backendMock) SubscribeNewTxsEvent(chan<- core.NewTxsEvent) event.Subscription { return nil }
func (b *backendMock) BloomStatus() (uint64, uint64) { return 0, 0 }
func (b *backendMock) ServiceFilter(ctx context.Context, session *bloombits.MatcherSession) {}
func (b *backendMock) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription { return nil }
func (b *backendMock) SubscribePendingLogsEvent(ch chan<- []*types.Log) event.Subscription {
return nil
}
func (b *backendMock) SubscribeRemovedLogsEvent(ch chan<- core.RemovedLogsEvent) event.Subscription {
return nil
}
func (b *backendMock) Engine() consensus.Engine { return nil }