|
| 1 | +from __future__ import annotations |
| 2 | + |
| 3 | +import asyncio |
| 4 | + |
| 5 | +import pytest |
| 6 | + |
| 7 | +from graphql_server.channels.handlers.base import ChannelsConsumer |
| 8 | + |
| 9 | + |
| 10 | +class DummyChannelLayer: |
| 11 | + def __init__(self) -> None: |
| 12 | + self.added: list[tuple[str, str]] = [] |
| 13 | + self.discarded: list[tuple[str, str]] = [] |
| 14 | + |
| 15 | + async def group_add(self, group: str, channel: str) -> None: |
| 16 | + self.added.append((group, channel)) |
| 17 | + |
| 18 | + async def group_discard(self, group: str, channel: str) -> None: |
| 19 | + self.discarded.append((group, channel)) |
| 20 | + |
| 21 | + |
| 22 | +@pytest.mark.asyncio |
| 23 | +async def test_channel_listen_receives_messages_and_cleans_up() -> None: |
| 24 | + consumer = ChannelsConsumer() |
| 25 | + layer = DummyChannelLayer() |
| 26 | + consumer.channel_layer = layer |
| 27 | + consumer.channel_name = "chan" |
| 28 | + |
| 29 | + gen = consumer.channel_listen("test.message", groups=["g"], timeout=0.1) |
| 30 | + |
| 31 | + async def send() -> None: |
| 32 | + await asyncio.sleep(0) |
| 33 | + queue = next(iter(consumer.listen_queues["test.message"])) |
| 34 | + queue.put_nowait({"type": "test.message", "payload": 1}) |
| 35 | + |
| 36 | + asyncio.create_task(send()) |
| 37 | + |
| 38 | + with pytest.deprecated_call(match="Use listen_to_channel instead"): |
| 39 | + message = await gen.__anext__() |
| 40 | + assert message == {"type": "test.message", "payload": 1} |
| 41 | + |
| 42 | + await gen.aclose() |
| 43 | + |
| 44 | + assert layer.added == [("g", "chan")] |
| 45 | + assert layer.discarded == [("g", "chan")] |
| 46 | + |
| 47 | + |
| 48 | +@pytest.mark.asyncio |
| 49 | +async def test_channel_listen_times_out() -> None: |
| 50 | + consumer = ChannelsConsumer() |
| 51 | + layer = DummyChannelLayer() |
| 52 | + consumer.channel_layer = layer |
| 53 | + consumer.channel_name = "chan" |
| 54 | + |
| 55 | + gen = consumer.channel_listen("test.message", groups=["g"], timeout=0.01) |
| 56 | + |
| 57 | + with pytest.deprecated_call(match="Use listen_to_channel instead"): |
| 58 | + with pytest.raises(StopAsyncIteration): |
| 59 | + await gen.__anext__() |
| 60 | + |
| 61 | + assert layer.added == [("g", "chan")] |
| 62 | + assert layer.discarded == [("g", "chan")] |
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