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from async_rx import Observer, rx_range, rx_subject |
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3
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from ..model import ObserverCounterCollector |
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5
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6
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class SubjectHandlerCounter: |
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def __init__(self): |
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self.on_subscribe_count = 0 |
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self.on_unsubscribe_count = 0 |
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self.current = None |
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async def on_subscribe(self, count: int, source: Observer) -> None: |
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self.on_subscribe_count += 1 |
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self.current = count |
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async def on_unsubscribe(self, count: int, source: Observer) -> None: |
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self.on_unsubscribe_count += 1 |
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self.current = count |
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20
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21
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def test_subject(kernel): |
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seeker_a = ObserverCounterCollector() |
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seeker_b = ObserverCounterCollector() |
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subject_handler = SubjectHandlerCounter() |
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a_subject = rx_subject(subject_handler=subject_handler) |
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assert a_subject |
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sub_a = kernel.run(a_subject.subscribe(seeker_a)) |
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assert subject_handler.on_subscribe_count == 1 |
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assert subject_handler.current == 1 |
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sub_b = kernel.run(a_subject.subscribe(seeker_b)) |
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assert subject_handler.on_subscribe_count == 2 |
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assert subject_handler.current == 2 |
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38
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sub_subject = kernel.run(rx_range(start=0, stop=10).subscribe(a_subject)) |
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39
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40
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# both observer see the same things |
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assert seeker_a.on_next_count == seeker_b.on_next_count |
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assert seeker_a.on_error_count == seeker_b.on_error_count |
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assert seeker_a.on_completed_count == seeker_b.on_completed_count |
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44
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45
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assert seeker_a.on_next_count == 10 |
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assert seeker_a.on_error_count == 0 |
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assert seeker_a.on_completed_count == 1 |
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48
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49
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kernel.run(sub_a()) |
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assert subject_handler.on_unsubscribe_count == 1 |
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assert subject_handler.current == 1 |
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# sub are one shot |
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kernel.run(sub_a()) |
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assert subject_handler.on_unsubscribe_count == 1 |
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assert subject_handler.current == 1 |
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56
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57
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kernel.run(sub_b()) |
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assert subject_handler.on_unsubscribe_count == 2 |
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assert subject_handler.current == 0 |
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60
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geronimo-iia /
async-rx
