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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
|
// Copyright 2018 The dexon-consensus Authors
// This file is part of the dexon-consensus library.
//
// The dexon-consensus 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 dexon-consensus 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 dexon-consensus library. If not, see
// <http://www.gnu.org/licenses/>.
package test
import (
"errors"
"fmt"
"math"
"net"
"time"
"github.com/tangerine-network/go-tangerine/rlp"
"github.com/tangerine-network/tangerine-consensus/common"
"github.com/tangerine-network/tangerine-consensus/core/crypto"
"github.com/tangerine-network/tangerine-consensus/core/crypto/ecdsa"
"github.com/tangerine-network/tangerine-consensus/core/db"
"github.com/tangerine-network/tangerine-consensus/core/types"
typesDKG "github.com/tangerine-network/tangerine-consensus/core/types/dkg"
)
// GenerateRandomNodeIDs generates randomly a slices of types.NodeID.
func GenerateRandomNodeIDs(nodeCount int) (nIDs types.NodeIDs) {
nIDs = types.NodeIDs{}
for i := 0; i < nodeCount; i++ {
nIDs = append(nIDs, types.NodeID{Hash: common.NewRandomHash()})
}
return
}
// GenerateRandomPrivateKeys generate a set of private keys.
func GenerateRandomPrivateKeys(nodeCount int) (prvKeys []crypto.PrivateKey) {
for i := 0; i < nodeCount; i++ {
prvKey, err := ecdsa.NewPrivateKey()
if err != nil {
panic(err)
}
prvKeys = append(prvKeys, prvKey)
}
return
}
// CalcLatencyStatistics calculates average and deviation from a slice
// of latencies.
func CalcLatencyStatistics(latencies []time.Duration) (avg, dev time.Duration) {
var (
sum float64
sumOfSquareDiff float64
)
// Calculate average.
for _, v := range latencies {
sum += float64(v)
}
avgAsFloat := sum / float64(len(latencies))
avg = time.Duration(avgAsFloat)
// Calculate deviation
for _, v := range latencies {
diff := math.Abs(float64(v) - avgAsFloat)
sumOfSquareDiff += diff * diff
}
dev = time.Duration(math.Sqrt(sumOfSquareDiff / float64(len(latencies)-1)))
return
}
// FindMyIP returns local IP address.
func FindMyIP() (ip string, err error) {
addrs, err := net.InterfaceAddrs()
if err != nil {
return
}
for _, a := range addrs {
ipnet, ok := a.(*net.IPNet)
if !ok {
continue
}
if ipnet.IP.IsLoopback() {
continue
}
if ipnet.IP.To4() != nil {
ip = ipnet.IP.String()
return
}
}
err = fmt.Errorf("unable to find IP")
return
}
// NewKeys creates private keys and corresponding public keys as slice.
func NewKeys(count int) (
prvKeys []crypto.PrivateKey, pubKeys []crypto.PublicKey, err error) {
for i := 0; i < count; i++ {
var prvKey crypto.PrivateKey
if prvKey, err = ecdsa.NewPrivateKey(); err != nil {
return
}
prvKeys = append(prvKeys, prvKey)
pubKeys = append(pubKeys, prvKey.PublicKey())
}
return
}
// CloneDKGComplaint clones a tpyesDKG.Complaint instance.
func CloneDKGComplaint(
comp *typesDKG.Complaint) (copied *typesDKG.Complaint) {
b, err := rlp.EncodeToBytes(comp)
if err != nil {
panic(err)
}
copied = &typesDKG.Complaint{}
if err = rlp.DecodeBytes(b, copied); err != nil {
panic(err)
}
return
}
// CloneDKGMasterPublicKey clones a typesDKG.MasterPublicKey instance.
func CloneDKGMasterPublicKey(mpk *typesDKG.MasterPublicKey) (
copied *typesDKG.MasterPublicKey) {
b, err := rlp.EncodeToBytes(mpk)
if err != nil {
panic(err)
}
copied = typesDKG.NewMasterPublicKey()
if err = rlp.DecodeBytes(b, copied); err != nil {
panic(err)
}
return
}
// CloneDKGMPKReady clones a typesDKG.MPKReady instance.
func CloneDKGMPKReady(ready *typesDKG.MPKReady) (
copied *typesDKG.MPKReady) {
b, err := rlp.EncodeToBytes(ready)
if err != nil {
panic(err)
}
copied = &typesDKG.MPKReady{}
if err = rlp.DecodeBytes(b, copied); err != nil {
panic(err)
}
return
}
// CloneDKGFinalize clones a typesDKG.Finalize instance.
func CloneDKGFinalize(final *typesDKG.Finalize) (
copied *typesDKG.Finalize) {
b, err := rlp.EncodeToBytes(final)
if err != nil {
panic(err)
}
copied = &typesDKG.Finalize{}
if err = rlp.DecodeBytes(b, copied); err != nil {
panic(err)
}
return
}
// CloneDKGSuccess clones a typesDKG.Success instance.
func CloneDKGSuccess(success *typesDKG.Success) (
copied *typesDKG.Success) {
b, err := rlp.EncodeToBytes(success)
if err != nil {
panic(err)
}
copied = &typesDKG.Success{}
if err = rlp.DecodeBytes(b, copied); err != nil {
panic(err)
}
return
}
// CloneDKGPrivateShare clones a typesDKG.PrivateShare instance.
func CloneDKGPrivateShare(prvShare *typesDKG.PrivateShare) (
copied *typesDKG.PrivateShare) {
b, err := rlp.EncodeToBytes(prvShare)
if err != nil {
panic(err)
}
copied = &typesDKG.PrivateShare{}
if err = rlp.DecodeBytes(b, copied); err != nil {
panic(err)
}
return
}
func cloneAgreementResult(result *types.AgreementResult) (
copied *types.AgreementResult) {
b, err := rlp.EncodeToBytes(result)
if err != nil {
panic(err)
}
copied = &types.AgreementResult{}
if err = rlp.DecodeBytes(b, copied); err != nil {
panic(err)
}
return
}
var (
// ErrCompactionChainTipBlockNotExists raised when the hash of compaction
// chain tip doesn't match a block in database.
ErrCompactionChainTipBlockNotExists = errors.New(
"compaction chain tip block not exists")
// ErrEmptyCompactionChainTipInfo raised when a compaction chain tip info
// is empty.
ErrEmptyCompactionChainTipInfo = errors.New(
"empty compaction chain tip info")
// ErrMismatchBlockHash raise when the hash for that block mismatched.
ErrMismatchBlockHash = errors.New("mismatched block hash")
)
// VerifyDB check if a database is valid after test.
func VerifyDB(db db.Database) error {
hash, height := db.GetCompactionChainTipInfo()
if (hash == common.Hash{}) || height == 0 {
return ErrEmptyCompactionChainTipInfo
}
b, err := db.GetBlock(hash)
if err != nil {
return err
}
if b.Hash != hash {
return ErrMismatchBlockHash
}
return nil
}
func getComplementSet(
all, set map[types.NodeID]struct{}) map[types.NodeID]struct{} {
complement := make(map[types.NodeID]struct{})
for nID := range all {
if _, exists := set[nID]; exists {
continue
}
complement[nID] = struct{}{}
}
return complement
}
|