plugeth/eth/gasprice/gasprice_test.go
lightclient bbfb1e4008
all: add support for EIP-2718, EIP-2930 transactions (#21502)
This adds support for EIP-2718 typed transactions as well as EIP-2930
access list transactions (tx type 1). These EIPs are scheduled for the
Berlin fork.

There very few changes to existing APIs in core/types, and several new APIs
to deal with access list transactions. In particular, there are two new
constructor functions for transactions: types.NewTx and types.SignNewTx.
Since the canonical encoding of typed transactions is not RLP-compatible,
Transaction now has new methods for encoding and decoding: MarshalBinary
and UnmarshalBinary.

The existing EIP-155 signer does not support the new transaction types.
All code dealing with transaction signatures should be updated to use the
newer EIP-2930 signer. To make this easier for future updates, we have
added new constructor functions for types.Signer: types.LatestSigner and
types.LatestSignerForChainID. 

This change also adds support for the YoloV3 testnet.

Co-authored-by: Martin Holst Swende <martin@swende.se>
Co-authored-by: Felix Lange <fjl@twurst.com>
Co-authored-by: Ryan Schneider <ryanleeschneider@gmail.com>
2021-02-25 15:26:57 +01:00

119 lines
3.8 KiB
Go

// Copyright 2020 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 gasprice
import (
"context"
"math"
"math/big"
"testing"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
)
type testBackend struct {
chain *core.BlockChain
}
func (b *testBackend) HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Header, error) {
if number == rpc.LatestBlockNumber {
return b.chain.CurrentBlock().Header(), nil
}
return b.chain.GetHeaderByNumber(uint64(number)), nil
}
func (b *testBackend) BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Block, error) {
if number == rpc.LatestBlockNumber {
return b.chain.CurrentBlock(), nil
}
return b.chain.GetBlockByNumber(uint64(number)), nil
}
func (b *testBackend) ChainConfig() *params.ChainConfig {
return b.chain.Config()
}
func newTestBackend(t *testing.T) *testBackend {
var (
key, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
addr = crypto.PubkeyToAddress(key.PublicKey)
gspec = &core.Genesis{
Config: params.TestChainConfig,
Alloc: core.GenesisAlloc{addr: {Balance: big.NewInt(math.MaxInt64)}},
}
signer = types.LatestSigner(gspec.Config)
)
engine := ethash.NewFaker()
db := rawdb.NewMemoryDatabase()
genesis, _ := gspec.Commit(db)
// Generate testing blocks
blocks, _ := core.GenerateChain(params.TestChainConfig, genesis, engine, db, 32, func(i int, b *core.BlockGen) {
b.SetCoinbase(common.Address{1})
tx, err := types.SignTx(types.NewTransaction(b.TxNonce(addr), common.HexToAddress("deadbeef"), big.NewInt(100), 21000, big.NewInt(int64(i+1)*params.GWei), nil), signer, key)
if err != nil {
t.Fatalf("failed to create tx: %v", err)
}
b.AddTx(tx)
})
// Construct testing chain
diskdb := rawdb.NewMemoryDatabase()
gspec.Commit(diskdb)
chain, err := core.NewBlockChain(diskdb, nil, params.TestChainConfig, engine, vm.Config{}, nil, nil)
if err != nil {
t.Fatalf("Failed to create local chain, %v", err)
}
chain.InsertChain(blocks)
return &testBackend{chain: chain}
}
func (b *testBackend) CurrentHeader() *types.Header {
return b.chain.CurrentHeader()
}
func (b *testBackend) GetBlockByNumber(number uint64) *types.Block {
return b.chain.GetBlockByNumber(number)
}
func TestSuggestPrice(t *testing.T) {
config := Config{
Blocks: 3,
Percentile: 60,
Default: big.NewInt(params.GWei),
}
backend := newTestBackend(t)
oracle := NewOracle(backend, config)
// The gas price sampled is: 32G, 31G, 30G, 29G, 28G, 27G
got, err := oracle.SuggestPrice(context.Background())
if err != nil {
t.Fatalf("Failed to retrieve recommended gas price: %v", err)
}
expect := big.NewInt(params.GWei * int64(30))
if got.Cmp(expect) != 0 {
t.Fatalf("Gas price mismatch, want %d, got %d", expect, got)
}
}