def test_complete_first_source2(self):
sink = TObserver()
observer = FlatConcatNoBackpressureObserver(
next_observer=sink,
selector=lambda v: v,
scheduler=self.scheduler,
subscribe_scheduler=self.scheduler,
composite_disposable=self.composite_disposable,
)
self.source.observe(init_observer_info(observer=observer))
self.source.on_next_single(self.source1)
self.scheduler.advance_by(1)
self.source1.on_next_single(1)
self.source.on_next_single(self.source2)
self.scheduler.advance_by(1)
self.source.on_completed()
self.source2.on_next_single('a')
self.source1.on_next_single(2)
self.source1.on_completed()
self.source2.on_next_single('b')
self.source2.on_completed()
self.assertEqual([1, 2, 'a', 'b'], sink.received)
self.assertTrue(sink.is_completed)
def test_initialize(self):
sink = TObserver()
observer = FlatConcatNoBackpressureObserver(
next_observer=sink,
selector=lambda v: v,
scheduler=self.scheduler,
subscribe_scheduler=self.scheduler,
composite_disposable=self.composite_disposable,
)
self.source.observe(init_observer_info(observer=observer))
def test_inner_on_next(self):
sink = TObserver()
observer = FlatConcatNoBackpressureObserver(
next_observer=sink,
selector=lambda v: v,
scheduler=self.scheduler,
subscribe_scheduler=self.scheduler,
composite_disposable=self.composite_disposable,
)
self.source.observe(init_observer_info(observer=observer))
self.source.on_next_single(self.source1)
self.scheduler.advance_by(1)
self.source1.on_next_single(1)
self.assertEqual([1], sink.received)
def test_on_next_does_not_backpressure(self):
sink = TObserver()
observer = FlatConcatNoBackpressureObserver(
next_observer=sink,
selector=lambda v: v,
scheduler=self.scheduler,
subscribe_scheduler=self.scheduler,
composite_disposable=self.composite_disposable,
)
self.source.observe(init_observer_info(observer=observer))
ack1 = self.source.on_next_single(self.source1)
ack2 = self.source.on_next_single(self.source2)
self.assertIsInstance(ack1, ContinueAck)
self.assertIsInstance(ack2, ContinueAck)
def observe(self, observer_info: ObserverInfo):
composite_disposable = CompositeDisposable()
concat_observer = FlatConcatNoBackpressureObserver(
next_observer=observer_info.observer,
selector=self.selector,
scheduler=self.scheduler,
subscribe_scheduler=self.subscribe_scheduler,
composite_disposable=composite_disposable,
)
disposable = self.source.observe(
observer_info.copy(observer=concat_observer))
composite_disposable.add(disposable)
return composite_disposable