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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
// Copyright 2016 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 core
import (
"math/big"
"testing"
"github.com/ethereum/go-ethereum/consensus/ethash"
"github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/params"
)
// Tests that DAO-fork enabled clients can properly filter out fork-commencing
// blocks based on their extradata fields.
func TestDAOForkRangeExtradata(t *testing.T) {
forkBlock := big.NewInt(32)
// Generate a common prefix for both pro-forkers and non-forkers
db := ethdb.NewMemDatabase()
gspec := new(Genesis)
genesis := gspec.MustCommit(db)
prefix, _ := GenerateChain(params.TestChainConfig, genesis, ethash.NewFaker(), db, int(forkBlock.Int64()-1), func(i int, gen *BlockGen) {})
// Create the concurrent, conflicting two nodes
proDb := ethdb.NewMemDatabase()
gspec.MustCommit(proDb)
proConf := *params.TestChainConfig
proConf.DAOForkBlock = forkBlock
proConf.DAOForkSupport = true
proBc, _ := NewBlockChain(proDb, nil, &proConf, ethash.NewFaker(), vm.Config{}, nil)
defer proBc.Stop()
conDb := ethdb.NewMemDatabase()
gspec.MustCommit(conDb)
conConf := *params.TestChainConfig
conConf.DAOForkBlock = forkBlock
conConf.DAOForkSupport = false
conBc, _ := NewBlockChain(conDb, nil, &conConf, ethash.NewFaker(), vm.Config{}, nil)
defer conBc.Stop()
if _, err := proBc.InsertChain(prefix); err != nil {
t.Fatalf("pro-fork: failed to import chain prefix: %v", err)
}
if _, err := conBc.InsertChain(prefix); err != nil {
t.Fatalf("con-fork: failed to import chain prefix: %v", err)
}
// Try to expand both pro-fork and non-fork chains iteratively with other camp's blocks
for i := int64(0); i < params.DAOForkExtraRange.Int64(); i++ {
// Create a pro-fork block, and try to feed into the no-fork chain
db = ethdb.NewMemDatabase()
gspec.MustCommit(db)
bc, _ := NewBlockChain(db, nil, &conConf, ethash.NewFaker(), vm.Config{}, nil)
defer bc.Stop()
blocks := conBc.GetBlocksFromHash(conBc.CurrentBlock().Hash(), int(conBc.CurrentBlock().NumberU64()))
for j := 0; j < len(blocks)/2; j++ {
blocks[j], blocks[len(blocks)-1-j] = blocks[len(blocks)-1-j], blocks[j]
}
if _, err := bc.InsertChain(blocks); err != nil {
t.Fatalf("failed to import contra-fork chain for expansion: %v", err)
}
if err := bc.stateCache.TrieDB().Commit(bc.CurrentHeader().Root, true); err != nil {
t.Fatalf("failed to commit contra-fork head for expansion: %v", err)
}
blocks, _ = GenerateChain(&proConf, conBc.CurrentBlock(), ethash.NewFaker(), db, 1, func(i int, gen *BlockGen) {})
if _, err := conBc.InsertChain(blocks); err == nil {
t.Fatalf("contra-fork chain accepted pro-fork block: %v", blocks[0])
}
// Create a proper no-fork block for the contra-forker
blocks, _ = GenerateChain(&conConf, conBc.CurrentBlock(), ethash.NewFaker(), db, 1, func(i int, gen *BlockGen) {})
if _, err := conBc.InsertChain(blocks); err != nil {
t.Fatalf("contra-fork chain didn't accepted no-fork block: %v", err)
}
// Create a no-fork block, and try to feed into the pro-fork chain
db = ethdb.NewMemDatabase()
gspec.MustCommit(db)
bc, _ = NewBlockChain(db, nil, &proConf, ethash.NewFaker(), vm.Config{}, nil)
defer bc.Stop()
blocks = proBc.GetBlocksFromHash(proBc.CurrentBlock().Hash(), int(proBc.CurrentBlock().NumberU64()))
for j := 0; j < len(blocks)/2; j++ {
blocks[j], blocks[len(blocks)-1-j] = blocks[len(blocks)-1-j], blocks[j]
}
if _, err := bc.InsertChain(blocks); err != nil {
t.Fatalf("failed to import pro-fork chain for expansion: %v", err)
}
if err := bc.stateCache.TrieDB().Commit(bc.CurrentHeader().Root, true); err != nil {
t.Fatalf("failed to commit pro-fork head for expansion: %v", err)
}
blocks, _ = GenerateChain(&conConf, proBc.CurrentBlock(), ethash.NewFaker(), db, 1, func(i int, gen *BlockGen) {})
if _, err := proBc.InsertChain(blocks); err == nil {
t.Fatalf("pro-fork chain accepted contra-fork block: %v", blocks[0])
}
// Create a proper pro-fork block for the pro-forker
blocks, _ = GenerateChain(&proConf, proBc.CurrentBlock(), ethash.NewFaker(), db, 1, func(i int, gen *BlockGen) {})
if _, err := proBc.InsertChain(blocks); err != nil {
t.Fatalf("pro-fork chain didn't accepted pro-fork block: %v", err)
}
}
// Verify that contra-forkers accept pro-fork extra-datas after forking finishes
db = ethdb.NewMemDatabase()
gspec.MustCommit(db)
bc, _ := NewBlockChain(db, nil, &conConf, ethash.NewFaker(), vm.Config{}, nil)
defer bc.Stop()
blocks := conBc.GetBlocksFromHash(conBc.CurrentBlock().Hash(), int(conBc.CurrentBlock().NumberU64()))
for j := 0; j < len(blocks)/2; j++ {
blocks[j], blocks[len(blocks)-1-j] = blocks[len(blocks)-1-j], blocks[j]
}
if _, err := bc.InsertChain(blocks); err != nil {
t.Fatalf("failed to import contra-fork chain for expansion: %v", err)
}
if err := bc.stateCache.TrieDB().Commit(bc.CurrentHeader().Root, true); err != nil {
t.Fatalf("failed to commit contra-fork head for expansion: %v", err)
}
blocks, _ = GenerateChain(&proConf, conBc.CurrentBlock(), ethash.NewFaker(), db, 1, func(i int, gen *BlockGen) {})
if _, err := conBc.InsertChain(blocks); err != nil {
t.Fatalf("contra-fork chain didn't accept pro-fork block post-fork: %v", err)
}
// Verify that pro-forkers accept contra-fork extra-datas after forking finishes
db = ethdb.NewMemDatabase()
gspec.MustCommit(db)
bc, _ = NewBlockChain(db, nil, &proConf, ethash.NewFaker(), vm.Config{}, nil)
defer bc.Stop()
blocks = proBc.GetBlocksFromHash(proBc.CurrentBlock().Hash(), int(proBc.CurrentBlock().NumberU64()))
for j := 0; j < len(blocks)/2; j++ {
blocks[j], blocks[len(blocks)-1-j] = blocks[len(blocks)-1-j], blocks[j]
}
if _, err := bc.InsertChain(blocks); err != nil {
t.Fatalf("failed to import pro-fork chain for expansion: %v", err)
}
if err := bc.stateCache.TrieDB().Commit(bc.CurrentHeader().Root, true); err != nil {
t.Fatalf("failed to commit pro-fork head for expansion: %v", err)
}
blocks, _ = GenerateChain(&conConf, proBc.CurrentBlock(), ethash.NewFaker(), db, 1, func(i int, gen *BlockGen) {})
if _, err := proBc.InsertChain(blocks); err != nil {
t.Fatalf("pro-fork chain didn't accept contra-fork block post-fork: %v", err)
}
}
|
