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import curio |
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2
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import pytest |
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3
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4
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from async_rx import Observer, Subscription, rx_create, rx_from, rx_merge, rx_range |
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5
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from async_rx.protocol import default_subscription |
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7
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from ..model import ObserverCounterCollector |
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from .model import countdown |
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9
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10
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11
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def test_rx_merge_default(): |
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with pytest.raises(RuntimeError): |
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rx_merge() |
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14
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15
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16
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def test_rx_merge_concurrent(kernel): |
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seeker = ObserverCounterCollector() |
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20
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async def _build(): |
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21
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return rx_merge(rx_create(subscribe=await countdown(10, 0.1)), rx_create(subscribe=await countdown(10, 0.2))) |
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22
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23
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obs = kernel.run(_build()) |
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sub_a = kernel.run(obs.subscribe(seeker)) |
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kernel.run(sub_a()) |
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assert seeker.on_completed_count == 1 |
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assert seeker.on_error_count == 0 |
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28
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assert seeker.on_next_count == 20 |
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29
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assert seeker.items == [10, 10, 9, 8, 9, 7, 6, 8, 5, 4, 7, 3, 2, 6, 1, 5, 4, 3, 2, 1] |
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30
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31
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32
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def test_rx_merge(kernel): |
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33
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34
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seeker = ObserverCounterCollector() |
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35
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36
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obs = rx_merge(rx_range(start=1, stop=20), rx_from("i am an iterable")) |
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sub_a = kernel.run(obs.subscribe(seeker)) |
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kernel.run(sub_a()) |
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40
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assert seeker.on_completed_count == 1 |
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41
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assert seeker.on_error_count == 0 |
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42
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assert seeker.on_next_count == (20 - 1 + len("i am an iterable")) |
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assert seeker.items == [ |
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1, |
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2, |
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3, |
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4, |
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48
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5, |
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6, |
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7, |
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8, |
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52
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9, |
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53
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10, |
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54
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11, |
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55
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12, |
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56
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13, |
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57
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14, |
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58
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15, |
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59
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16, |
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60
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17, |
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61
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18, |
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62
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19, |
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63
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"i", |
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64
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" ", |
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65
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"a", |
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66
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"m", |
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67
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" ", |
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68
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"a", |
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69
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"n", |
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70
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" ", |
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71
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"i", |
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72
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"t", |
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"e", |
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"r", |
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75
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"a", |
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"b", |
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"l", |
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78
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"e", |
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79
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] |
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80
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81
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82
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def test_rx_merge_with_error(kernel): |
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83
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84
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seeker = ObserverCounterCollector() |
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85
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86
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async def _subscribe(an_observer: Observer) -> Subscription: |
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87
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await curio.sleep(0.2) |
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88
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await an_observer.on_error(err="Args") |
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89
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return default_subscription |
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90
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91
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async def _build(): |
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92
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return rx_merge(rx_create(subscribe=await countdown(10, 0.1)), rx_create(subscribe=_subscribe)) |
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93
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94
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obs = kernel.run(_build()) |
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95
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sub_a = kernel.run(obs.subscribe(seeker)) |
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96
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kernel.run(sub_a()) |
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97
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assert seeker.on_completed_count == 0 |
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98
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assert seeker.on_error_count == 1 |
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99
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assert seeker.on_next_count <= 3 |
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100
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assert seeker.items[0] == 10 |
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101
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if seeker.on_next_count > 2: |
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102
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assert seeker.items[1] == 9 |
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103
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geronimo-iia /
async-rx
