import json

from tradecipher_blockchain_backed_privacy_pr.bridge import EnergiBridge
from tradecipher_blockchain_backed_privacy_pr.contracts import LocalTrade


def test_bridge_roundtrip_localtrade():
    bridge = EnergiBridge()
    lt = LocalTrade(id="T1", symbol="AAPL", quantity=10.0, price=150.0)
    canonical = bridge.to_canonical(lt)
    # canonical payload should be JSON string by design
    assert canonical["type"] == "LocalTrade"
    recovered = bridge.from_canonical(canonical)
    assert recovered == lt