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[3.13] gh-143866: Verify return value of pathlib.write_{bytes,text} methods in tests (GH-143870) (#144078)

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(cherry picked from commit cb6a662bb0)

Co-authored-by: sobolevn <mail@sobolevn.me>
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Bera 2026-01-20 21:34:43 +03:00 • committed by GitHub
parent 77dddece52
commit 740db907a8
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1 changed files with 7 additions and 5 deletions
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12
Lib/test/test_pathlib/test_pathlib_abc.py
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@ -1630,20 +1630,22 @@ def test_open_common(self):
def test_read_write_bytes(self):
p = self.cls(self.base)
(p / 'fileA').write_bytes(b'abcdefg')
self.assertEqual((p / 'fileA').read_bytes(), b'abcdefg')
data = b'abcdefg'
self.assertEqual(len(data), (p / 'fileA').write_bytes(data))
self.assertEqual((p / 'fileA').read_bytes(), data)
# Check that trying to write str does not truncate the file.
self.assertRaises(TypeError, (p / 'fileA').write_bytes, 'somestr')
self.assertEqual((p / 'fileA').read_bytes(), b'abcdefg')
self.assertEqual((p / 'fileA').read_bytes(), data)
def test_read_write_text(self):
p = self.cls(self.base)
(p / 'fileA').write_text('äbcdefg', encoding='latin-1')
data = 'äbcdefg'
self.assertEqual(len(data), (p / 'fileA').write_text(data, encoding='latin-1'))
self.assertEqual((p / 'fileA').read_text(
encoding='utf-8', errors='ignore'), 'bcdefg')
# Check that trying to write bytes does not truncate the file.
self.assertRaises(TypeError, (p / 'fileA').write_text, b'somebytes')
self.assertEqual((p / 'fileA').read_text(encoding='latin-1'), 'äbcdefg')
self.assertEqual((p / 'fileA').read_text(encoding='latin-1'), data)
def test_read_text_with_newlines(self):
p = self.cls(self.base)