test_client.py 文件源码

def _create_heartbeat_events(start=datetime.now(tz=timezone.utc),
                             delta=timedelta(seconds=1)):
    e1_ts = start
    e2_ts = e1_ts + delta

    # Needed since server (or underlying datastore) drops precision up to milliseconds.
    # Update: Even with millisecond precision it sometimes fails. (tried using `round` and `int`)
    #         Now rounding down to 10ms precision to prevent random failure.
    #         10ms precision at least seems to work well.
    # TODO: Figure out why it sometimes fails with millisecond precision. Would probably
    #       be useful to find the microsecond values where it consistently always fails.
    e1_ts = e1_ts.replace(microsecond=int(e1_ts.microsecond / 10000) * 100)
    e2_ts = e2_ts.replace(microsecond=int(e2_ts.microsecond / 10000) * 100)

    e1 = Event(timestamp=e1_ts, data={"label": "test"})
    e2 = Event(timestamp=e2_ts, data={"label": "test"})

    return e1, e2