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Add unit test for mixed_line_ending

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Morgan Courbet 2017-07-03 19:57:43 +02:00
parent f477582ae6
commit b1294b8614
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2 changed files with 36 additions and 1 deletions
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tests/mixed_line_ending_test.py Normal file
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import pytest
from pre_commit_hooks.mixed_line_ending import mixed_line_ending
# Input, expected return value, expected output
TESTS_FIX_AUTO = (
# only 'LF'
(b'foo\nbar\nbaz\n', 0, b'foo\nbar\nbaz\n'),
# only 'CRLF'
(b'foo\r\nbar\r\nbaz\r\n', 0, b'foo\r\nbar\r\nbaz\r\n'),
# mixed with majority of 'LF'
(b'foo\r\nbar\nbaz\n', 1, b'foo\nbar\nbaz\n'),
# mixed with majority of 'CRLF'
(b'foo\r\nbar\nbaz\r\n', 1, b'foo\r\nbar\r\nbaz\r\n'),
)
@pytest.mark.parametrize(('input_s', 'expected_retval', 'output'),
TESTS_FIX_AUTO)
def test_mixed_line_ending_fix_auto(input_s, expected_retval, output, tmpdir):
path = tmpdir.join('file.txt')
path.write(input_s)
ret = mixed_line_ending(('--fix=auto', '-vv', path.strpath))
assert ret == expected_retval
assert path.read() == output