Class _FakeClock

tests/test_spend_control.py:161–171

Deterministic clock for testing time-windowed logic.

class _FakeClock:
    """Deterministic clock for testing time-windowed logic."""

    def __init__(self, start: float) -> None:
        self._now = start

    def __call__(self) -> float:
        return self._now

    def advance(self, seconds: float) -> None:
        self._now += seconds