70 lines
2.5 KiB
Go
70 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 tests
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"math/big"
|
||
|
|
|
||
|
|
"github.com/ethereum/go-ethereum/common"
|
||
|
|
"github.com/ethereum/go-ethereum/common/math"
|
||
|
|
"github.com/ethereum/go-ethereum/consensus/ethash"
|
||
|
|
"github.com/ethereum/go-ethereum/core/types"
|
||
|
|
"github.com/ethereum/go-ethereum/params"
|
||
|
|
)
|
||
|
|
|
||
|
|
//go:generate gencodec -type DifficultyTest -field-override difficultyTestMarshaling -out gen_difficultytest.go
|
||
|
|
|
||
|
|
type DifficultyTest struct {
|
||
|
|
ParentTimestamp *big.Int `json:"parentTimestamp"`
|
||
|
|
ParentDifficulty *big.Int `json:"parentDifficulty"`
|
||
|
|
UncleHash common.Hash `json:"parentUncles"`
|
||
|
|
CurrentTimestamp *big.Int `json:"currentTimestamp"`
|
||
|
|
CurrentBlockNumber uint64 `json:"currentBlockNumber"`
|
||
|
|
CurrentDifficulty *big.Int `json:"currentDifficulty"`
|
||
|
|
}
|
||
|
|
|
||
|
|
type difficultyTestMarshaling struct {
|
||
|
|
ParentTimestamp *math.HexOrDecimal256
|
||
|
|
ParentDifficulty *math.HexOrDecimal256
|
||
|
|
CurrentTimestamp *math.HexOrDecimal256
|
||
|
|
CurrentDifficulty *math.HexOrDecimal256
|
||
|
|
UncleHash common.Hash
|
||
|
|
CurrentBlockNumber math.HexOrDecimal64
|
||
|
|
}
|
||
|
|
|
||
|
|
func (test *DifficultyTest) Run(config *params.ChainConfig) error {
|
||
|
|
parentNumber := big.NewInt(int64(test.CurrentBlockNumber - 1))
|
||
|
|
parent := &types.Header{
|
||
|
|
Difficulty: test.ParentDifficulty,
|
||
|
|
Time: test.ParentTimestamp,
|
||
|
|
Number: parentNumber,
|
||
|
|
UncleHash: test.UncleHash,
|
||
|
|
}
|
||
|
|
|
||
|
|
actual := ethash.CalcDifficulty(config, test.CurrentTimestamp.Uint64(), parent)
|
||
|
|
exp := test.CurrentDifficulty
|
||
|
|
|
||
|
|
if actual.Cmp(exp) != 0 {
|
||
|
|
return fmt.Errorf("parent[time %v diff %v unclehash:%x] child[time %v number %v] diff %v != expected %v",
|
||
|
|
test.ParentTimestamp, test.ParentDifficulty, test.UncleHash,
|
||
|
|
test.CurrentTimestamp, test.CurrentBlockNumber, actual, exp)
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
|
||
|
|
}
|