mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-25 21:17:16 +00:00
10a57fc3d4
This commit is a preparation for the upcoming metropolis hardfork. It prepares the state, core and vm packages such that integration with metropolis becomes less of a hassle. * Difficulty calculation requires header instead of individual parameters * statedb.StartRecord renamed to statedb.Prepare and added Finalise method required by metropolis, which removes unwanted accounts from the state (i.e. selfdestruct) * State keeps record of destructed objects (in addition to dirty objects) * core/vm pre-compiles may now return errors * core/vm pre-compiles gas check now take the full byte slice as argument instead of just the size * core/vm now keeps several hard-fork instruction tables instead of a single instruction table and removes the need for hard-fork checks in the instructions * core/vm contains a empty restruction function which is added in preparation of metropolis write-only mode operations * Adds the bn256 curve * Adds and sets the metropolis chain config block parameters (2^64-1)
85 lines
2.5 KiB
Go
85 lines
2.5 KiB
Go
// Copyright 2017 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 ethash
|
|
|
|
import (
|
|
"encoding/json"
|
|
"math/big"
|
|
"os"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/common/math"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
)
|
|
|
|
type diffTest struct {
|
|
ParentTimestamp uint64
|
|
ParentDifficulty *big.Int
|
|
CurrentTimestamp uint64
|
|
CurrentBlocknumber *big.Int
|
|
CurrentDifficulty *big.Int
|
|
}
|
|
|
|
func (d *diffTest) UnmarshalJSON(b []byte) (err error) {
|
|
var ext struct {
|
|
ParentTimestamp string
|
|
ParentDifficulty string
|
|
CurrentTimestamp string
|
|
CurrentBlocknumber string
|
|
CurrentDifficulty string
|
|
}
|
|
if err := json.Unmarshal(b, &ext); err != nil {
|
|
return err
|
|
}
|
|
|
|
d.ParentTimestamp = math.MustParseUint64(ext.ParentTimestamp)
|
|
d.ParentDifficulty = math.MustParseBig256(ext.ParentDifficulty)
|
|
d.CurrentTimestamp = math.MustParseUint64(ext.CurrentTimestamp)
|
|
d.CurrentBlocknumber = math.MustParseBig256(ext.CurrentBlocknumber)
|
|
d.CurrentDifficulty = math.MustParseBig256(ext.CurrentDifficulty)
|
|
|
|
return nil
|
|
}
|
|
|
|
func TestCalcDifficulty(t *testing.T) {
|
|
file, err := os.Open("../../tests/files/BasicTests/difficulty.json")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer file.Close()
|
|
|
|
tests := make(map[string]diffTest)
|
|
err = json.NewDecoder(file).Decode(&tests)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
config := ¶ms.ChainConfig{HomesteadBlock: big.NewInt(1150000)}
|
|
for name, test := range tests {
|
|
number := new(big.Int).Sub(test.CurrentBlocknumber, big.NewInt(1))
|
|
diff := CalcDifficulty(config, test.CurrentTimestamp, &types.Header{
|
|
Number: number,
|
|
Time: test.ParentTimestamp,
|
|
Difficulty: test.ParentDifficulty,
|
|
})
|
|
if diff.Cmp(test.CurrentDifficulty) != 0 {
|
|
t.Error(name, "failed. Expected", test.CurrentDifficulty, "and calculated", diff)
|
|
}
|
|
}
|
|
}
|