def mapper(ys, i):
def proj(y):
return "%s %s" % (i, y)
return ys.pipe(
ops.map(proj),
ops.concat(reactivex.return_value("%s end" % i)))
def test_concat_repeat(self):
with marbles_testing() as (start, cold, hot, exp):
e1 = cold("-e11-e12|")
e2 = cold("-e21-e22|")
ex = exp("-e11-e12-e21-e22-e11-e12-e21-e22|")
obs = e1.pipe(ops.concat(e2), ops.repeat(2))
results = start(obs)
assert results == ex
def test_range_double_subscribe(self):
scheduler = TestScheduler()
obs = reactivex.range(1, 4)
results = scheduler.start(lambda: obs.pipe(ops.concat(obs)))
assert results.messages == [
on_next(200, 1),
on_next(200, 2),
on_next(200, 3),
on_next(200, 1),
on_next(200, 2),
on_next(200, 3),
on_completed(200),
]
def test_concat_forward_none_scheduler(self):
subscribe_schedulers = {"e1": "unknown", "e2": "unknown"}
def subscribe_e1(observer, scheduler="not_set"):
subscribe_schedulers["e1"] = scheduler
observer.on_completed()
def subscribe_e2(observer, scheduler="not_set"):
subscribe_schedulers["e2"] = scheduler
observer.on_completed()
e1 = reactivex.create(subscribe_e1)
e2 = reactivex.create(subscribe_e2)
stream = e1.pipe(ops.concat(e2))
stream.subscribe()
assert subscribe_schedulers["e1"] is None
assert subscribe_schedulers["e2"] is None
def test_concat_forward_scheduler(self):
scheduler = TestScheduler()
subscribe_schedulers = {"e1": "unknown", "e2": "unknown"}
def subscribe_e1(observer, scheduler="not_set"):
subscribe_schedulers["e1"] = scheduler
observer.on_completed()
def subscribe_e2(observer, scheduler="not_set"):
subscribe_schedulers["e2"] = scheduler
observer.on_completed()
e1 = reactivex.create(subscribe_e1)
e2 = reactivex.create(subscribe_e2)
stream = e1.pipe(ops.concat(e2))
stream.subscribe(scheduler=scheduler)
scheduler.advance_to(1000)
assert subscribe_schedulers["e1"] is scheduler
assert subscribe_schedulers["e2"] is scheduler
def do_while(source: Observable[_T]) -> Observable[_T]:
return source.pipe(ops.concat(source.pipe(
ops.while_do(condition), ), ))
def create():
return e1.pipe(ops.concat(e2))
def create():
return e2.pipe(ops.concat(e1))