async def test_delay_done():
xs: AsyncTestSubject[int] = AsyncTestSubject()
ys = pipe(xs, rx.delay(1.0))
obv = AsyncTestObserver()
async with await ys.subscribe_async(obv):
await xs.asend_later(0, 10)
await xs.asend_later(1.0, 20)
await xs.aclose_later(1.0)
await obv
assert obv.values == [
(ca(1), OnNext(10)),
(ca(2), OnNext(20)),
(ca(3), OnCompleted),
]
async def test_debounce_filter():
xs: AsyncTestSubject[int] = AsyncTestSubject()
ys = pipe(xs, rx.debounce(0.5))
obv: AsyncTestObserver[int] = AsyncTestObserver()
await ys.subscribe_async(obv)
await xs.asend(1)
await asyncio.sleep(0.3)
await xs.asend(2)
await asyncio.sleep(0.6)
await xs.aclose()
await asyncio.sleep(0.6)
await obv
assert obv.values == [
(ca(0.8), OnNext(2)),
(ca(0.9), OnCompleted),
]
async def test_delay_throw():
error = Exception("ex")
xs: AsyncTestSubject[int] = AsyncTestSubject()
ys = pipe(xs, rx.delay(0.3))
obv = AsyncTestObserver()
await ys.subscribe_async(obv)
await xs.asend(10)
await asyncio.sleep(1)
await xs.asend(20)
await xs.athrow(error)
await asyncio.sleep(1)
assert obv.values == [
(ca(0.3), OnNext(10)),
(ca(1.3), OnNext(20)),
(ca(1.6), OnError(error)),
]
async def test_debounce():
xs: AsyncTestSubject[int] = AsyncTestSubject()
ys = pipe(xs, rx.debounce(0.5))
obv: AsyncTestObserver[int] = AsyncTestObserver()
await ys.subscribe_async(obv)
await xs.asend(1) # 0 -> 0.5
await asyncio.sleep(0.6) # 0.6
await xs.asend(2) # 0.6 -> 1.1
await asyncio.sleep(0.6) # 1.2
await xs.aclose() # 1.2
await asyncio.sleep(0.6)
await obv
assert obv.values == [
(ca(0.5), OnNext(1)),
(ca(1.1), OnNext(2)),
(ca(1.2), OnCompleted),
]
async def test_chain_simple_pipe():
xs = AsyncRx.from_iterable([1, 2, 3])
def mapper(value: int) -> int:
return value * 10
async def predicate(value: int) -> bool:
await asyncio.sleep(0.1)
return value > 1
ys = xs.filter_async(predicate).map(mapper)
obv: AsyncTestObserver[int] = AsyncTestObserver()
await ys.subscribe_async(obv)
await obv
assert obv.values == [
(ca(0.2), OnNext(20)),
(ca(0.3), OnNext(30)),
(ca(0.3), OnCompleted),
]
async def test_delay_cancel_before_done():
xs: AsyncTestSubject[int] = AsyncTestSubject()
ys = pipe(xs, rx.delay(0.3))
obv = AsyncTestObserver()
async with await ys.subscribe_async(obv):
await xs.asend(10)
await asyncio.sleep(1.5)
await xs.asend(20)
await asyncio.sleep(1)
assert obv.values == [
(ca(0.3), OnNext(10)),
]