simplify dht mock and restore clock after accelerating

This commit is contained in:
Victor Shyba 2022-02-18 18:52:17 -03:00 committed by Victor Shyba
parent 8b1009161a
commit a76a0ac8c4

View file

@ -9,7 +9,7 @@ if typing.TYPE_CHECKING:
def get_time_accelerator(loop: asyncio.AbstractEventLoop,
now: typing.Optional[float] = None) -> typing.Callable[[float], typing.Awaitable[None]]:
instant_step: bool = False) -> typing.Callable[[float], typing.Awaitable[None]]:
"""
Returns an async advance() function
@ -17,32 +17,22 @@ def get_time_accelerator(loop: asyncio.AbstractEventLoop,
made by call_later, call_at, and call_soon.
"""
_time = now or loop.time()
loop.time = functools.wraps(loop.time)(lambda: _time)
original = loop.time
_drift = 0
loop.time = functools.wraps(loop.time)(lambda: original() + _drift)
async def accelerate_time(seconds: float) -> None:
nonlocal _time
nonlocal _drift
if seconds < 0:
raise ValueError(f'Cannot go back in time ({seconds} seconds)')
_time += seconds
await past_events()
_drift += seconds
await asyncio.sleep(0)
async def past_events() -> None:
while loop._scheduled:
timer: asyncio.TimerHandle = loop._scheduled[0]
if timer not in loop._ready and timer._when <= _time:
loop._scheduled.remove(timer)
loop._ready.append(timer)
if timer._when > _time:
break
await asyncio.sleep(0)
async def accelerator(seconds: float):
steps = seconds * 10.0
steps = seconds * 10.0 if not instant_step else 1
for _ in range(max(int(steps), 1)):
await accelerate_time(0.1)
await accelerate_time(seconds/steps)
return accelerator