Files
tendermint/crypto/merkle/proof_key_path_test.go
Marko 4e06dfef8c crypto/merkle: optimize merkle tree hashing (#6513)
## Description 

Upstream https://github.com/lazyledger/lazyledger-core/pull/351 to optimize merkle tree hashing 

### Benchmarking:

```
benchmark                                 old ns/op     new ns/op     delta
BenchmarkHashAlternatives/recursive-8     22914         21949         -4.21%
BenchmarkHashAlternatives/iterative-8     21634         21939         +1.41%

benchmark                                 old allocs     new allocs     delta
BenchmarkHashAlternatives/recursive-8     398            200            -49.75%
BenchmarkHashAlternatives/iterative-8     399            301            -24.56%

benchmark                                 old bytes     new bytes     delta
BenchmarkHashAlternatives/recursive-8     19088         6496          -65.97%
BenchmarkHashAlternatives/iterative-8     21776         13984         -35.78%
```

cc @odeke-em @cuonglm
2021-06-01 06:24:53 +00:00

45 lines
999 B
Go

package merkle
import (
// it is ok to use math/rand here: we do not need a cryptographically secure random
// number generator here and we can run the tests a bit faster
"math/rand"
"testing"
"github.com/stretchr/testify/require"
)
func TestKeyPath(t *testing.T) {
var path KeyPath
keys := make([][]byte, 10)
alphanum := "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
for d := 0; d < 1e4; d++ {
path = nil
for i := range keys {
enc := keyEncoding(rand.Intn(int(KeyEncodingMax)))
keys[i] = make([]byte, rand.Uint32()%20)
switch enc {
case KeyEncodingURL:
for j := range keys[i] {
keys[i][j] = alphanum[rand.Intn(len(alphanum))]
}
case KeyEncodingHex:
rand.Read(keys[i])
default:
panic("Unexpected encoding")
}
path = path.AppendKey(keys[i], enc)
}
res, err := KeyPathToKeys(path.String())
require.Nil(t, err)
require.Equal(t, len(keys), len(res))
for i, key := range keys {
require.Equal(t, key, res[i])
}
}
}