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| author | Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> | 2018-06-29 10:34:34 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-06-29 10:34:34 (GMT) |
| commit | eabebbb54c2604fd8d08e8019ea1be634aed8c2f (patch) | |
| tree | 753a4129f0ff70097c60b461f916f230352d747b /Lib/test/test_io.py | |
| parent | d0b442803ad4ba66b0bdb3cf183179d4c9a56f06 (diff) | |
| download | cpython-eabebbb54c2604fd8d08e8019ea1be634aed8c2f.zip cpython-eabebbb54c2604fd8d08e8019ea1be634aed8c2f.tar.gz cpython-eabebbb54c2604fd8d08e8019ea1be634aed8c2f.tar.bz2 | |
bpo-25862: Fix assertion failures in io.TextIOWrapper.tell(). (GH-3918)
(cherry picked from commit 23db935bcf258657682e66464bf8512def8af830)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
Diffstat (limited to 'Lib/test/test_io.py')
| -rw-r--r-- | Lib/test/test_io.py | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py index 286ae76..a03a7f7 100644 --- a/Lib/test/test_io.py +++ b/Lib/test/test_io.py @@ -3549,6 +3549,17 @@ class TextIOWrapperTest(unittest.TestCase): expected = 'linesep' + os.linesep + 'LF\nLF\nCR\rCRLF\r\n' self.assertEqual(txt.detach().getvalue().decode('ascii'), expected) + def test_issue25862(self): + # Assertion failures occurred in tell() after read() and write(). + t = self.TextIOWrapper(self.BytesIO(b'test'), encoding='ascii') + t.read(1) + t.read() + t.tell() + t = self.TextIOWrapper(self.BytesIO(b'test'), encoding='ascii') + t.read(1) + t.write('x') + t.tell() + class MemviewBytesIO(io.BytesIO): '''A BytesIO object whose read method returns memoryviews |