def test_init_state(self):
sink = TObserver()
obs = ZipObservable(self.left, self.right)
obs.observe(init_observer_info(sink))
self.assertIsInstance(self.measure_termination_state(obs), TerminationStates.InitState)
self.assertIsInstance(self.measure_state(obs), ZipStates.WaitOnLeftRight)
def test_exception(self):
"""
ack.on_next
WaitOnRight ------------> Stopped
"""
sink = TObserver(immediate_continue=0)
obs = ZipObservable(self.left, self.right)
obs.observe(init_observer_info(sink))
ack1 = self.left.on_next_list([1])
self.right.on_error(self.exception)
self.assertEqual(sink.exception, self.exception)
def test_right_complete(self):
"""
s2.on_completed
WaitOnLeftRight -----------------> Stopped
InitState RightCompletedState
"""
sink = TObserver()
obs = ZipObservable(self.left, self.right)
obs.observe(init_observer_info(sink))
self.right.on_completed()
self.assertIsInstance(self.measure_state(obs), ZipStates.Stopped)
self.assertIsInstance(self.measure_termination_state(obs), TerminationStates.RightCompletedState)
self.assertTrue(sink.is_completed)
def test_left_complete_wait_on_right(self):
"""
s1.on_completed
WaitOnLeftRight ------------> WaitOnRight
InitState LeftCompletedState
"""
sink = TObserver(immediate_continue=0)
obs = ZipObservable(self.left, self.right)
obs.observe(init_observer_info(sink))
self.left.on_next_list([1])
self.left.on_completed()
self.assertIsInstance(self.measure_termination_state(obs), TerminationStates.LeftCompletedState)
self.assertIsInstance(self.measure_state(obs), ZipStates.WaitOnRight)
def test_emit_left_with_synchronous_ack(self):
"""
s1.on_next
WaitOnLeftRight ------------> WaitOnRight
InitState InitState
"""
sink = TObserver()
obs = ZipObservable(self.left, self.right)
obs.observe(init_observer_info(sink))
ack1 = self.left.on_next_single(1)
self.assertIsInstance(self.measure_state(obs), ZipStates.WaitOnRight)
self.assertIsInstance(self.measure_termination_state(obs), TerminationStates.InitState)
self.assertFalse(ack1.has_value)
self.assertListEqual(sink.received, [])
def test_acknowledge_after_completed(self):
"""
ack.on_next
Stopped ------------> Stopped
"""
sink = TObserver(immediate_continue=0)
obs = ZipObservable(self.left, self.right)
obs.observe(init_observer_info(sink))
ack1 = self.left.on_next_list([1])
ack2 = self.right.on_next_list([1])
self.left.on_completed()
sink.ack.on_next(continue_ack)
self.assertIsInstance(self.measure_state(obs), ZipStates.Stopped)
self.assertListEqual(sink.received, [(1, 1)])
def test_wait_on_right_to_wait_on_left_with_synchronous_ack(self):
"""
s2.on_next
WaitOnRight ------------> WaitOnLeft
"""
sink = TObserver()
obs = ZipObservable(self.left, self.right)
obs.observe(init_observer_info(sink))
ack1 = self.left.on_next_list([1, 2])
ack2 = self.right.on_next_list([1, 2, 3])
self.assertIsInstance(self.measure_state(obs), ZipStates.WaitOnLeft)
self.assertIsInstance(ack1.value, ContinueAck)
self.assertFalse(ack2.has_value)
self.assertListEqual(sink.received, [(1, 1), (2, 2)])
def test_multiple_elements_with_synchronous_ack(self):
"""
s2.on_next
WaitOnRight ------------> WaitOnLeftRight
"""
sink = TObserver()
obs = ZipObservable(self.left, self.right)
obs.observe(init_observer_info(sink))
ack1 = self.left.on_next_list([1, 2, 3])
ack2 = self.right.on_next_list([1, 2, 3])
self.assertIsInstance(self.measure_state(obs), ZipStates.WaitOnLeftRight)
self.assertIsInstance(ack1.value, ContinueAck)
self.assertIsInstance(ack2, ContinueAck)
self.assertListEqual(sink.received, [(1, 1), (2, 2), (3, 3)])
def test_left_complete_to_wait_on_right(self):
"""
s2.on_next
WaitOnRight ------------> WaitOnRight
LeftComplete LeftComplete
"""
sink = TObserver(immediate_continue=0)
obs = ZipObservable(self.left, self.right)
obs.observe(init_observer_info(sink))
self.left.on_next_list([1, 1])
self.left.on_completed()
self.right.on_next_list([1])
self.assertIsInstance(self.measure_termination_state(obs), TerminationStates.LeftCompletedState)
self.assertIsInstance(self.measure_state(obs), ZipStates.WaitOnRight)
self.assertListEqual(sink.received, [(1, 1)])
def test_acknowledge_left(self):
"""
ack.on_next
WaitOnLeft ------------> WaitOnLeft
"""
sink = TObserver(immediate_continue=0)
obs = ZipObservable(self.left, self.right)
obs.observe(init_observer_info(sink))
ack1 = self.left.on_next_list([1])
ack2 = self.right.on_next_list([1, 2])
sink.ack.on_next(continue_ack)
self.assertIsInstance(self.measure_state(obs), ZipStates.WaitOnLeft)
self.assertIsInstance(ack1.value, ContinueAck)
self.assertFalse(ack2.has_value)
self.assertListEqual(sink.received, [(1, 1)])
def unsafe_subscribe(self, subscriber: Subscriber) -> Subscription:
left_subscription = self.left.unsafe_subscribe(subscriber=subscriber)
right_subscription = self.right.unsafe_subscribe(subscriber=subscriber)
return left_subscription.copy(observable=ZipObservable(
left=left_subscription.observable,
right=right_subscription.observable,
stack=self.stack,
), )
def unsafe_subscribe(self, subscriber: Subscriber) -> Subscription:
left_subscription = self.left.unsafe_subscribe(subscriber=subscriber)
right_subscription = self.right.unsafe_subscribe(subscriber=subscriber)
result = left_subscription.index.match_with(
right_subscription.index,
subscriber=subscriber,
stack=self.stack,
)
# The resulting zip Flowable propagates selectors from left and right downstream if the bases of
# left and right Flowable match
if isinstance(result, FlowableBaseAndSelectorsMatch):
if isinstance(result.left, IdentitySeqMapInfo) and isinstance(
result.right, IdentitySeqMapInfo):
base = left_subscription.index.base
selectors = {}
if left_subscription.index.selectors is not None:
selectors = {
**selectors,
**left_subscription.index.selectors
}
if right_subscription.index.selectors is not None:
selectors = {
**selectors,
**right_subscription.index.selectors
}
else:
base = None
selectors = None
else:
base = None
selectors = None
observable = ZipObservable(
left=left_subscription.observable,
right=right_subscription.observable,
stack=self.stack,
)
return left_subscription.copy(
index=FlowableBaseAndSelectors(base=base, selectors=selectors),
observable=observable,
)