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trailing-whitespace hook: restoring original file in case of failure - fixes #134

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This commit is contained in:
Lucas Cimon 2016-08-18 16:39:06 +02:00
parent 775a7906cd
commit bc5e7f2d72
2 changed files with 24 additions and 8 deletions
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10
tests/trailing_whitespace_fixer_test.py
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@ -1,6 +1,8 @@
from __future__ import absolute_import
from __future__ import unicode_literals
import sys
import pytest
from pre_commit_hooks.trailing_whitespace_fixer import fix_trailing_whitespace
@ -103,3 +105,11 @@ def test_no_markdown_linebreak_ext_opt(filename, input_s, output, tmpdir):
def test_returns_zero_for_no_changes():
assert fix_trailing_whitespace([__file__]) == 0
def test_preserve_non_utf8_file(tmpdir):
path = tmpdir.join('file.txt')
path.write_binary(b'<a>\xe9 \n</a>')
ret = fix_trailing_whitespace([path.strpath])
assert ret == (1 if sys.version_info[0] < 3 else 0) # a UnicodeDecodeError is only triggered in Python 3
assert path.size() > 0