blob: 4e0332d7d88998b114eff85140fafb009cfec246 (
plain) (
blame)
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
|
package test
import (
"sync"
"github.com/ethereum/go-ethereum/crypto"
)
// test helpers
// TODO: move into common test helper package (see p2p/crypto etc.)
func NewHashPool() *TestHashPool {
return &TestHashPool{intToHash: make(intToHash), hashToInt: make(hashToInt)}
}
type intToHash map[int][]byte
type hashToInt map[string]int
// hashPool is a test helper, that allows random hashes to be referred to by integers
type TestHashPool struct {
intToHash
hashToInt
lock sync.Mutex
}
func newHash(i int) []byte {
return crypto.Sha3([]byte(string(i)))
}
func (self *TestHashPool) IndexesToHashes(indexes []int) (hashes [][]byte) {
self.lock.Lock()
defer self.lock.Unlock()
for _, i := range indexes {
hash, found := self.intToHash[i]
if !found {
hash = newHash(i)
self.intToHash[i] = hash
self.hashToInt[string(hash)] = i
}
hashes = append(hashes, hash)
}
return
}
func (self *TestHashPool) HashesToIndexes(hashes [][]byte) (indexes []int) {
self.lock.Lock()
defer self.lock.Unlock()
for _, hash := range hashes {
i, found := self.hashToInt[string(hash)]
if !found {
i = -1
}
indexes = append(indexes, i)
}
return
}
|
