import json
from bexproof.policy import Policy
from bexproof.zkp import generate_proof


def test_generate_proof_consistency():
    policy = Policy(version=1, rules={"price_improvement_min": 0.001})
    log_entry = {"order_id": "ORD1", "venue": "VENUE1", "price": 100.0, "latency_ms": 5}
    proof = generate_proof(log_entry, policy)
    assert "proof" in proof
    # Re-generating with same inputs should yield same proof
    proof2 = generate_proof(log_entry, policy)
    assert proof == proof2