forked from mintme-com/webchaind
-
Notifications
You must be signed in to change notification settings - Fork 0
/
difficulty_test_util.go
75 lines (64 loc) · 2.71 KB
/
difficulty_test_util.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
// Copyright 2015 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"
"testing"
"github.com/mkrufky/webchaind/common"
"github.com/mkrufky/webchaind/common/hexutil"
"github.com/mkrufky/webchaind/core"
"github.com/mkrufky/webchaind/core/types"
"github.com/mkrufky/webchaind/params"
)
// DifficultyTest is the structure of JSON from test files
type DifficultyTest struct {
ParentTimestamp string `json:"parentTimestamp"`
ParentDifficulty string `json:"parentDifficulty"`
UncleHash common.Hash `json:"parentUncles"`
CurrentTimestamp string `json:"currentTimestamp"`
CurrentBlockNumber string `json:"currentBlockNumber"`
CurrentDifficulty string `json:"currentDifficulty"`
}
func (test *DifficultyTest) runDifficulty(t *testing.T, config *core.ChainConfig) error {
currentNumber, _ := hexutil.HexOrDecimalToBigInt(test.CurrentBlockNumber)
parentNumber := new(big.Int).Sub(currentNumber, big.NewInt(1))
parentTimestamp, _ := hexutil.HexOrDecimalToBigInt(test.ParentTimestamp)
parentDifficulty, _ := hexutil.HexOrDecimalToBigInt(test.ParentDifficulty)
currentTimestamp, _ := hexutil.HexOrDecimalToUint64(test.CurrentTimestamp)
parent := &types.Header{
Number: parentNumber,
Time: parentTimestamp,
Difficulty: parentDifficulty,
UncleHash: test.UncleHash,
}
if config.IsAtlantis(parentNumber) && parent.Number.Cmp(big.NewInt(3199999)) >= 0 {
return nil
}
// Check to make sure difficulty is above minimum
if parentDifficulty.Cmp(params.MinimumDifficulty) < 0 {
t.Skip("difficulty below minimum")
return nil
}
actual := core.CalcDifficulty(config, currentTimestamp, parent)
exp, _ := hexutil.HexOrDecimalToBigInt(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
}