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| author | Zackery Spytz <zspytz@gmail.com> | 2022-11-25 12:55:26 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-11-25 12:55:26 (GMT) |
| commit | d386115039e75c332c8471c239cf7dc5dee791a7 (patch) | |
| tree | 8a75a98e6bffea8269616d9e16bef7fd0b6277ae /Lib | |
| parent | b1dcdefc3abf496a3e37e12b85dd9959f5b70341 (diff) | |
| download | cpython-d386115039e75c332c8471c239cf7dc5dee791a7.zip cpython-d386115039e75c332c8471c239cf7dc5dee791a7.tar.gz cpython-d386115039e75c332c8471c239cf7dc5dee791a7.tar.bz2 | |
bpo-38031: Fix a possible assertion failure in _io.FileIO() (#GH-5688)
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_io.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py index bc6071f..c927f15 100644 --- a/Lib/test/test_io.py +++ b/Lib/test/test_io.py @@ -888,6 +888,14 @@ class IOTest(unittest.TestCase): open('non-existent', 'r', opener=badopener) self.assertEqual(str(cm.exception), 'opener returned -2') + def test_opener_invalid_fd(self): + # Check that OSError is raised with error code EBADF if the + # opener returns an invalid file descriptor (see gh-82212). + fd = os_helper.make_bad_fd() + with self.assertRaises(OSError) as cm: + self.open('foo', opener=lambda name, flags: fd) + self.assertEqual(cm.exception.errno, errno.EBADF) + def test_fileio_closefd(self): # Issue #4841 with self.open(__file__, 'rb') as f1, \ |