132 lines
4.7 KiB
Go
132 lines
4.7 KiB
Go
// Copyright 2021 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 eip1559
|
|
|
|
import (
|
|
"math/big"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
)
|
|
|
|
// copyConfig does a _shallow_ copy of a given config. Safe to set new values, but
|
|
// do not use e.g. SetInt() on the numbers. For testing only
|
|
func copyConfig(original *params.ChainConfig) *params.ChainConfig {
|
|
return ¶ms.ChainConfig{
|
|
ChainID: original.ChainID,
|
|
HomesteadBlock: original.HomesteadBlock,
|
|
DAOForkBlock: original.DAOForkBlock,
|
|
DAOForkSupport: original.DAOForkSupport,
|
|
EIP150Block: original.EIP150Block,
|
|
EIP155Block: original.EIP155Block,
|
|
EIP158Block: original.EIP158Block,
|
|
ByzantiumBlock: original.ByzantiumBlock,
|
|
ConstantinopleBlock: original.ConstantinopleBlock,
|
|
PetersburgBlock: original.PetersburgBlock,
|
|
IstanbulBlock: original.IstanbulBlock,
|
|
MuirGlacierBlock: original.MuirGlacierBlock,
|
|
BerlinBlock: original.BerlinBlock,
|
|
LondonBlock: original.LondonBlock,
|
|
TerminalTotalDifficulty: original.TerminalTotalDifficulty,
|
|
Ethash: original.Ethash,
|
|
Clique: original.Clique,
|
|
}
|
|
}
|
|
|
|
func config() *params.ChainConfig {
|
|
config := copyConfig(params.TestChainConfig)
|
|
config.LondonBlock = big.NewInt(5)
|
|
return config
|
|
}
|
|
|
|
// TestBlockGasLimits tests the gasLimit checks for blocks both across
|
|
// the EIP-1559 boundary and post-1559 blocks
|
|
// func TestBlockGasLimits(t *testing.T) {
|
|
// initial := new(big.Int).SetUint64(params.InitialBaseFee)
|
|
|
|
// for i, tc := range []struct {
|
|
// pGasLimit uint64
|
|
// pNum int64
|
|
// gasLimit uint64
|
|
// ok bool
|
|
// }{
|
|
// // Transitions from non-london to london
|
|
// {10000000, 4, 20000000, true}, // No change
|
|
// {10000000, 4, 20019530, true}, // Upper limit
|
|
// {10000000, 4, 20019531, false}, // Upper +1
|
|
// {10000000, 4, 19980470, true}, // Lower limit
|
|
// {10000000, 4, 19980469, false}, // Lower limit -1
|
|
// // London to London
|
|
// {20000000, 5, 20000000, true},
|
|
// {20000000, 5, 20019530, true}, // Upper limit
|
|
// {20000000, 5, 20019531, false}, // Upper limit +1
|
|
// {20000000, 5, 19980470, true}, // Lower limit
|
|
// {20000000, 5, 19980469, false}, // Lower limit -1
|
|
// {40000000, 5, 40039061, true}, // Upper limit
|
|
// {40000000, 5, 40039062, false}, // Upper limit +1
|
|
// {40000000, 5, 39960939, true}, // lower limit
|
|
// {40000000, 5, 39960938, false}, // Lower limit -1
|
|
// } {
|
|
// parent := &types.Header{
|
|
// GasUsed: tc.pGasLimit / 2,
|
|
// GasLimit: tc.pGasLimit,
|
|
// BaseFee: initial,
|
|
// Number: big.NewInt(tc.pNum),
|
|
// }
|
|
// header := &types.Header{
|
|
// GasUsed: tc.gasLimit / 2,
|
|
// GasLimit: tc.gasLimit,
|
|
// BaseFee: initial,
|
|
// Number: big.NewInt(tc.pNum + 1),
|
|
// }
|
|
// err := VerifyEip1559Header(config(), parent, header)
|
|
// if tc.ok && err != nil {
|
|
// t.Errorf("test %d: Expected valid header: %s", i, err)
|
|
// }
|
|
// if !tc.ok && err == nil {
|
|
// t.Errorf("test %d: Expected invalid header", i)
|
|
// }
|
|
// }
|
|
// }
|
|
|
|
// TestCalcBaseFee assumes all blocks are 1559-blocks
|
|
func TestCalcBaseFee(t *testing.T) {
|
|
tests := []struct {
|
|
parentBaseFee int64
|
|
parentGasLimit uint64
|
|
parentGasUsed uint64
|
|
expectedBaseFee int64
|
|
}{
|
|
{params.InitialBaseFee, 20000000, 10000000, params.InitialBaseFee}, // usage == target
|
|
{params.InitialBaseFee, 20000000, 9000000, params.InitialBaseFee}, // usage below target
|
|
{params.InitialBaseFee, 20000000, 11000000, params.InitialBaseFee}, // usage above target
|
|
}
|
|
for i, test := range tests {
|
|
parent := &types.Header{
|
|
Number: common.Big32,
|
|
GasLimit: test.parentGasLimit,
|
|
GasUsed: test.parentGasUsed,
|
|
BaseFee: big.NewInt(test.parentBaseFee),
|
|
}
|
|
if have, want := CalcBaseFee(config(), parent), big.NewInt(test.expectedBaseFee); have.Cmp(want) != 0 {
|
|
t.Errorf("test %d: have %d want %d, ", i, have, want)
|
|
}
|
|
}
|
|
}
|