https://github.com/python/cpython/commit/cb6a662bb0f7a9da9d4ba9dda820053f8d54a9f8
commit: cb6a662bb0f7a9da9d4ba9dda820053f8d54a9f8
branch: main
author: b9788213 <[email protected]>
committer: sobolevn <[email protected]>
date: 2026-01-19T14:24:20+03:00
summary:
gh-143866: Verify return value of `pathlib.write_{bytes,text}` methods in tests
(#143870)
Co-authored-by: sobolevn <[email protected]>
files:
M Lib/test/test_pathlib/test_write.py
diff --git a/Lib/test/test_pathlib/test_write.py
b/Lib/test/test_pathlib/test_write.py
index c9c1d64656c9be..fa2a81a47b33dc 100644
--- a/Lib/test/test_pathlib/test_write.py
+++ b/Lib/test/test_pathlib/test_write.py
@@ -65,15 +65,17 @@ def test_open_wb(self):
def test_write_bytes(self):
p = self.root / 'fileA'
- p.write_bytes(b'abcdefg')
- self.assertEqual(self.ground.readbytes(p), b'abcdefg')
+ data = b'abcdefg'
+ self.assertEqual(len(data), p.write_bytes(data))
+ self.assertEqual(self.ground.readbytes(p), data)
# Check that trying to write str does not truncate the file.
self.assertRaises(TypeError, p.write_bytes, 'somestr')
- self.assertEqual(self.ground.readbytes(p), b'abcdefg')
+ self.assertEqual(self.ground.readbytes(p), data)
def test_write_text(self):
p = self.root / 'fileA'
- p.write_text('äbcdefg', encoding='latin-1')
+ data = 'äbcdefg'
+ self.assertEqual(len(data), p.write_text(data, encoding='latin-1'))
self.assertEqual(self.ground.readbytes(p), b'\xe4bcdefg')
# Check that trying to write bytes does not truncate the file.
self.assertRaises(TypeError, p.write_text, b'somebytes',
encoding='utf-8')
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