feat: add test with poseidon

This commit is contained in:
Magamedrasul Ibragimov 2022-11-16 19:21:58 +03:00
parent c810499057
commit 20a436781b
2 changed files with 99 additions and 0 deletions

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@ -7,3 +7,5 @@ edition = "2021"
hex-literal = "0.3.4" hex-literal = "0.3.4"
tiny-keccak = { version = "2.0.2", features = ["keccak"] } tiny-keccak = { version = "2.0.2", features = ["keccak"] }
sled = "0.34.7" sled = "0.34.7"
rln = { git = "https://github.com/vacp2p/zerokit", rev = "490206a" }
ark-serialize = "0.3.0"

97
tests/poseidon.rs Normal file
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@ -0,0 +1,97 @@
use pmtree::*;
use rln::circuit::Fr;
use rln::poseidon_hash::poseidon_hash;
use std::collections::HashMap;
use std::io::Cursor;
use std::str::{self, FromStr};
use ark_serialize::{CanonicalDeserialize, CanonicalSerialize};
struct MemoryDB(HashMap<DBKey, Value>);
#[derive(Clone, Copy, PartialEq, Eq)]
struct PoseidonHash;
#[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
struct MyFr(Fr);
impl Hasher for PoseidonHash {
type Fr = MyFr;
fn default_leaf() -> Self::Fr {
MyFr(Fr::from(0))
}
fn hash(inputs: &[Self::Fr]) -> Self::Fr {
MyFr(poseidon_hash(
&inputs.iter().map(|&x| x.0).collect::<Vec<_>>(),
))
}
}
impl From<Vec<u8>> for MyFr {
fn from(v: Vec<u8>) -> Self {
let c = Cursor::new(v);
let f = Fr::deserialize(c).unwrap();
MyFr(f)
}
}
impl From<MyFr> for Vec<u8> {
fn from(v: MyFr) -> Self {
let mut buf = vec![];
Fr::serialize(&v.0, &mut buf).unwrap();
buf
}
}
impl Database for MemoryDB {
fn new(_dbpath: &str) -> Result<Self> {
Ok(MemoryDB(HashMap::new()))
}
fn load(_dbpath: &str) -> Result<Self> {
Err(Error("Cannot load in-memory DB".to_string()))
}
fn get(&self, key: DBKey) -> Result<Option<Value>> {
Ok(self.0.get(&key).cloned())
}
fn put(&mut self, key: DBKey, value: Value) -> Result<()> {
self.0.insert(key, value);
Ok(())
}
}
#[test]
fn poseidon_memory() -> Result<()> {
let mut mt = MerkleTree::<MemoryDB, PoseidonHash>::new(2, "abacaba")?;
assert_eq!(mt.capacity(), 4);
assert_eq!(mt.depth(), 2);
let leaves = vec![
MyFr(Fr::from_str("12345").unwrap()),
MyFr(Fr::from_str("67891").unwrap()),
MyFr(Fr::from_str("23456").unwrap()),
MyFr(Fr::from_str("78912").unwrap()),
];
mt.update_next(leaves[0])?;
// for &leaf in &leaves {
// mt.update_next(leaf)?;
// }
// for (i, leaf) in leaves.iter().enumerate() {
// assert!(mt.verify(leaf, &mt.proof(i)?));
// }
Ok(())
}