async def test_merge_streams():
xs = AsyncStream()
s1 = AsyncStream()
s2 = AsyncStream()
ys = merge(xs)
obv = AsyncAnonymousObserver()
await subscribe(ys, obv)
await xs.asend(s1)
await xs.asend(s2)
await s1.asend_at(1, 10)
await s1.asend_at(2, 20)
await s1.asend_at(4, 30)
await s1.aclose_at(6)
await s2.asend_at(0, 40)
await s2.asend_at(3, 50)
await s2.asend_at(5, 60)
await s2.aclose_at(6)
await xs.aclose()
await obv
assert obv.values == [(0, 40), (1, 10), (2, 20), (3, 50), (4, 30), (5, 60),
(6, )]
async def test_merge_done():
xs = AsyncStream()
ys = merge(xs)
obv = AsyncAnonymousObserver()
await subscribe(ys, obv)
await xs.asend(from_iterable([10]))
await xs.asend(from_iterable([20]))
await xs.aclose()
await obv
assert obv.values == [(0, 10), (0, 20), (0, )]
async def test_merge_done():
xs = AsyncStream()
ys = merge(xs)
sink = AnonymousAsyncObserver()
sub = await subscribe(ys, sink)
await xs.asend(from_iterable([10]))
await xs.asend(from_iterable([20]))
await xs.aclose()
await sub
assert sink.values == [(0, 10), (0, 20), (0, )]
async def test_merge_streams_concat():
s1 = AsyncStream()
s2 = from_iterable([1, 2, 3])
xs = from_iterable([s1, s2])
ys = merge(xs, 1)
obv = AsyncAnonymousObserver()
await subscribe(ys, obv)
await s1.asend_at(1, 10)
await s1.asend_at(2, 20)
await s1.asend_at(4, 30)
await s1.aclose_at(6)
await obv
assert obv.values == [(1, 10), (2, 20), (4, 30), (6, 1), (6, 2), (6, 3),
(6, )]
def merge(self, other: 'ChainedAsyncObservable') -> 'ChainedAsyncObservable':
from aioreactive.operators.merge import merge
return ChainedAsyncObservable(merge(other, self))