mirror of https://github.com/scrapy/scrapy.git
50 lines
1.6 KiB
Python
50 lines
1.6 KiB
Python
"""Test that certain resources are not leaked during earlier tests."""
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from __future__ import annotations
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import asyncio
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import logging
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import pytest
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from scrapy.utils.log import LogCounterHandler
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from scrapy.utils.reactor import is_asyncio_reactor_installed, is_reactor_installed
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def test_counter_handler() -> None:
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"""Test that ``LogCounterHandler`` is always properly removed.
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It's added in ``Crawler.crawl{,_async}()`` and removed on engine_stopped.
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"""
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c = sum(1 for h in logging.root.handlers if isinstance(h, LogCounterHandler))
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assert c == 0
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def test_stderr_log_handler() -> None:
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"""Test that the Scrapy root handler is always properly removed.
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It's added in ``configure_logging()``, called by ``{Async,}CrawlerProcess``
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(without ``install_root_handler=False``). It can be removed with
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``_uninstall_scrapy_root_handler()`` if installing it was really neeeded.
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"""
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c = sum(1 for h in logging.root.handlers if type(h) is logging.StreamHandler) # pylint: disable=unidiomatic-typecheck
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assert c == 0
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@pytest.mark.requires_reactor # needs a running event loop for asyncio.all_tasks()
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@pytest.mark.only_asyncio
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def test_pending_asyncio_tasks() -> None:
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"""Test that there are no pending asyncio tasks."""
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assert not asyncio.all_tasks()
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def test_installed_reactor(reactor_pytest: str) -> None:
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"""Test that the correct reactor is installed."""
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match reactor_pytest:
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case "asyncio":
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assert is_asyncio_reactor_installed()
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case "default":
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assert not is_asyncio_reactor_installed()
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case "none":
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assert not is_reactor_installed()
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