mirror of
https://github.com/codex-storage/nim-codex.git
synced 2025-02-09 19:44:03 +00:00
407f77871f
* chore: warning cleanup * chore: fix proper disabling of warning * chore: ignore the import when not needed
60 lines
1.6 KiB
Nim
60 lines
1.6 KiB
Nim
import std/unittest
|
|
import std/sequtils
|
|
import std/random
|
|
|
|
import pkg/poseidon2
|
|
import pkg/poseidon2/sponge
|
|
|
|
import pkg/questionable/results
|
|
|
|
import pkg/codex/merkletree
|
|
import pkg/codex/utils/poseidon2digest
|
|
|
|
import ./helpers
|
|
|
|
suite "Digest - MerkleTree":
|
|
|
|
const KB = 1024
|
|
|
|
test "Hashes chunks of data with sponge, and combines them in merkle root":
|
|
let bytes = newSeqWith(64*KB, rand(byte))
|
|
var leaves: seq[Poseidon2Hash]
|
|
for i in 0..<32:
|
|
let
|
|
chunk = bytes[(i*2*KB)..<((i+1)*2*KB)]
|
|
digest = Sponge.digest(chunk, rate = 2)
|
|
leaves.add(digest)
|
|
|
|
let
|
|
digest = Poseidon2Tree.digest(bytes, chunkSize = 2*KB).tryGet
|
|
spongeDigest = SpongeMerkle.digest(bytes, chunkSize = 2*KB)
|
|
codexPosTree = Poseidon2Tree.init(leaves).tryGet
|
|
rootDigest = codexPosTree.root.tryGet
|
|
|
|
check:
|
|
bool( digest == spongeDigest )
|
|
bool( digest == rootDigest )
|
|
|
|
test "Handles partial chunk at the end":
|
|
|
|
let bytes = newSeqWith(63*KB, rand(byte))
|
|
var leaves: seq[Poseidon2Hash]
|
|
for i in 0..<31:
|
|
let
|
|
chunk = bytes[(i*2*KB)..<((i+1)*2*KB)]
|
|
digest = Sponge.digest(chunk, rate = 2)
|
|
leaves.add(digest)
|
|
|
|
let partialChunk = bytes[(62*KB)..<(63*KB)]
|
|
leaves.add(Sponge.digest(partialChunk, rate = 2))
|
|
|
|
let
|
|
digest = Poseidon2Tree.digest(bytes, chunkSize = 2*KB).tryGet
|
|
spongeDigest = SpongeMerkle.digest(bytes, chunkSize = 2*KB)
|
|
codexPosTree = Poseidon2Tree.init(leaves).tryGet
|
|
rootDigest = codexPosTree.root.tryGet
|
|
|
|
check:
|
|
bool( digest == spongeDigest )
|
|
bool( digest == rootDigest )
|