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2.6.3: pytest is failing in `tests/test_watcher.py::TestWatcher::test_watch_multiple_dirs` unit

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  • 何か問題がありますか？
#269 コメント 2 件 リアクション 0 件 担当者 0 名 GitHub で見る

まだ誰も着手していません。

評価

難易度
3/5
見積もり時間
1〜2日
初心者へのやさしさ
35/100
issue の種類
バグ
明瞭さ
おおむね明確
活発さ
停滞
技術スタック
python
領域
tooling

調査の方向性

Start by reproducing tests/test_watcher.py::TestWatcher::test_watch_multiple_dirs with the reported pytest command, then read the Watcher implementation exercised by that test. Trace why a modification to the first watched directory is missed after the second directory is added; done when the targeted test passes without breaking the other watcher tests.

索引モデルが issue の本文から書いたものです。

説明

I'm packaging your module as an rpm package so I'm using the typical PEP517 based build, install and test cycle used on building packages from non-root account.

  • python3 -sBm build -w --no-isolation
  • because I'm calling build with --no-isolation I'm using during all processes only locally installed modules
  • install .whl file in </install/prefix>
  • run pytest with $PYTHONPATH pointing to sitearch and sitelib inside </install/prefix>
  • build is performed in env which is cut off from access to the public network (pytest is executed with -m "not network")

Here is pytest output:

+ PYTHONPATH=/home/tkloczko/rpmbuild/BUILDROOT/python-livereload-2.6.3-9.fc35.x86_64/usr/lib64/python3.8/site-packages:/home/tkloczko/rpmbuild/BUILDROOT/python-livereload-2.6.3-9.fc35.x86_64/usr/lib/python3.8/site-packages
+ /usr/bin/pytest -ra -m 'not network'
============================= test session starts ==============================
platform linux -- Python 3.8.16, pytest-7.2.2, pluggy-1.0.0
rootdir: /home/tkloczko/rpmbuild/BUILD/python-livereload-2.6.3
collected 5 items

tests/test_watcher.py ....F                                              [100%]

=================================== FAILURES ===================================
_____________________ TestWatcher.test_watch_multiple_dirs _____________________

self = <tests.test_watcher.TestWatcher testMethod=test_watch_multiple_dirs>

    def test_watch_multiple_dirs(self):
        first_dir = os.path.join(tmpdir, 'first')
        second_dir = os.path.join(tmpdir, 'second')

        watcher = Watcher()

        os.mkdir(first_dir)
        watcher.watch(first_dir)
        assert watcher.examine() == (None, None)

        first_path = os.path.join(first_dir, 'foo')
        with open(first_path, 'w') as f:
            f.write('')
        assert watcher.examine() == (first_path, None)
        assert watcher.examine() == (None, None)

        os.mkdir(second_dir)
        watcher.watch(second_dir)
        assert watcher.examine() == (None, None)

        second_path = os.path.join(second_dir, 'bar')
        with open(second_path, 'w') as f:
            f.write('')
        assert watcher.examine() == (second_path, None)
        assert watcher.examine() == (None, None)

        with open(first_path, 'a') as f:
            f.write('foo')
>       assert watcher.examine() == (first_path, None)
E       AssertionError: assert (None, None) == ('/home/tkloc...st/foo', None)
E         At index 0 diff: None != '/home/tkloczko/rpmbuild/BUILD/python-livereload-2.6.3/tests/tmp/first/foo'
E         Use -v to get more diff

tests/test_watcher.py:147: AssertionError
=========================== short test summary info ============================
FAILED tests/test_watcher.py::TestWatcher::test_watch_multiple_dirs - Asserti...
========================= 1 failed, 4 passed in 3.16s ==========================

Here is list of installed modules in build env

Package                       Version
----------------------------- -----------------
alabaster                     0.7.13
attrs                         22.2.0
Babel                         2.12.1
build                         0.10.0
charset-normalizer            3.1.0
distro                        1.8.0
docutils                      0.19
exceptiongroup                1.0.0
gpg                           1.18.0-unknown
idna                          3.4
imagesize                     1.4.1
importlib-metadata            6.1.0
iniconfig                     2.0.0
Jinja2                        3.1.2
libcomps                      0.1.19
MarkupSafe                    2.1.2
packaging                     23.0
pip                           23.0.1
pluggy                        1.0.0
Pygments                      2.14.0
pyproject_hooks               1.0.0
pytest                        7.2.2
python-dateutil               2.8.2
pytz                          2023.2
requests                      2.28.2
rpm                           4.17.0
setuptools                    65.6.3
six                           1.16.0
snowballstemmer               2.2.0
Sphinx                        6.1.3
sphinxcontrib-applehelp       1.0.4
sphinxcontrib-devhelp         1.0.2.dev20230202
sphinxcontrib-htmlhelp        2.0.0
sphinxcontrib-jsmath          1.0.1.dev20230128
sphinxcontrib-qthelp          1.0.3.dev20230128
sphinxcontrib-serializinghtml 1.1.5
tomli                         2.0.1
tornado                       6.2
urllib3                       1.26.15
wheel                         0.38.4
zipp                          3.15.0
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