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feat(test): Include the PoseidonHasher in the fuzzing #6280

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Oct 11, 2024
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feat(test): Include the PoseidonHasher in the fuzzing #6280

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9 changes: 8 additions & 1 deletion tooling/nargo_cli/tests/stdlib-props.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -295,7 +295,7 @@
use light_poseidon::{Poseidon, PoseidonHasher};

let poseidon_hash = |inputs: &[FieldElement]| {
let mut poseidon = Poseidon::<ark_bn254::Fr>::new_circom(inputs.len()).unwrap();

Check warning on line 298 in tooling/nargo_cli/tests/stdlib-props.rs

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Unknown word (circom)
let frs: Vec<ark_bn254::Fr> = inputs.iter().map(|f| f.into_repr()).collect::<Vec<_>>();
let hash = poseidon.hash(&frs).expect("failed to hash");
FieldElement::from_repr(hash)
Expand All @@ -305,7 +305,14 @@
for len in 1..light_poseidon::MAX_X5_LEN {
let source = format!(
"fn main(input: [Field; {len}]) -> pub Field {{
std::hash::poseidon::bn254::hash_{len}(input)
let h1 = std::hash::poseidon::bn254::hash_{len}(input);
let h2 = {{
let mut hasher = std::hash::poseidon::PoseidonHasher::default();
input.hash(&mut hasher);
hasher.finish()
}};
assert_eq(h1, h2);
h1
}}"
);

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