_mock_clock.py 文件源码

def __init__(self, rate=0.0, autojump_threshold=inf):
        # when the real clock said 'real_base', the virtual time was
        # 'virtual_base', and since then it's advanced at 'rate' virtual
        # seconds per real second.
        self._real_base = 0.0
        self._virtual_base = 0.0
        self._rate = 0.0
        self._autojump_threshold = 0.0
        self._autojump_task = None
        self._autojump_cancel_scope = None
        # kept as an attribute so that our tests can monkeypatch it
        self._real_clock = time.monotonic

        # use the property update logic to set initial values
        self.rate = rate
        self.autojump_threshold = autojump_threshold