tests/test_replay.py

"""End-to-end determinism: a full scripted match replays identically."""

from scrypt.data import load_content
from scrypt.engine.combat import CombatState, Phase, Result


def run_pacifist_match(seed: int) -> CombatState:
    """Player draws and rings the bell, never playing a card. The Warden's
    encounter script should grind them down to a loss."""
    content = load_content()
    state = CombatState(
        main_deck=content.starter_decks["vanilla"]["cards"],
        side_deck=[content.card("bit")] * 10,
        script=content.encounters["first_blood"]["script"],
        seed=seed,
    )
    for _ in range(40):
        if state.phase is Phase.OVER:
            break
        if state.phase is Phase.DRAW:
            state.draw("side" if state.can_draw_side else "main")
        state.ring_bell()
    return state


def test_pacifist_player_loses():
    state = run_pacifist_match(seed=123)
    assert state.result is Result.PLAYER_LOSS


def test_same_seed_same_event_log():
    a = run_pacifist_match(seed=123)
    b = run_pacifist_match(seed=123)
    assert [repr(e) for e in a.events] == [repr(e) for e in b.events]