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# Copyright (C) 2024 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
from __future__ import annotations
'''Test cases for QtAsyncio'''
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from init_paths import init_test_paths
init_test_paths(False)
import asyncio
import PySide6.QtAsyncio as QtAsyncio
class QAsyncioTestCaseBug2790(unittest.TestCase):
async def producer(self, products: list[str]):
while True:
products.append("product")
await asyncio.sleep(2)
async def task(self, outputs: list[str]):
products = []
asyncio.ensure_future(self.producer(products))
for _ in range(6):
try:
async with asyncio.timeout(0.5):
while len(products) == 0:
await asyncio.sleep(0)
outputs.append(products.pop(0))
except TimeoutError:
outputs.append("Timeout")
@unittest.skipIf(sys.version_info < (3, 11), "requires asyncio.timeout")
def test_timeout(self):
# The Qt event loop (and thus QtAsyncio) does not guarantee that events
# will be processed in the order they were posted, so there is two
# possible outputs for this test.
outputs_expected_1 = ["product", "Timeout", "Timeout", "Timeout", "Timeout", "product"]
outputs_expected_2 = ["product", "Timeout", "Timeout", "Timeout", "product", "Timeout"]
outputs_real = []
QtAsyncio.run(self.task(outputs_real), keep_running=False)
self.assertTrue(outputs_real in [outputs_expected_1, outputs_expected_2])
if __name__ == '__main__':
unittest.main()
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