| from __future__ import absolute_import |
| from __future__ import unicode_literals |
| |
| import pytest |
| |
| from pre_commit_hooks.trailing_whitespace_fixer import main |
| |
| |
| @pytest.mark.parametrize( |
| ('input_s', 'expected'), |
| ( |
| ('foo \nbar \n', 'foo\nbar\n'), |
| ('bar\t\nbaz\t\n', 'bar\nbaz\n'), |
| ), |
| ) |
| def test_fixes_trailing_whitespace(input_s, expected, tmpdir): |
| path = tmpdir.join('file.md') |
| path.write(input_s) |
| assert main((path.strpath,)) == 1 |
| assert path.read() == expected |
| |
| |
| def test_ok_no_newline_end_of_file(tmpdir): |
| filename = tmpdir.join('f') |
| filename.write_binary(b'foo\nbar') |
| ret = main((filename.strpath,)) |
| assert filename.read_binary() == b'foo\nbar' |
| assert ret == 0 |
| |
| |
| def test_ok_with_dos_line_endings(tmpdir): |
| filename = tmpdir.join('f') |
| filename.write_binary(b'foo\r\nbar\r\nbaz\r\n') |
| ret = main((filename.strpath,)) |
| assert filename.read_binary() == b'foo\r\nbar\r\nbaz\r\n' |
| assert ret == 0 |
| |
| |
| @pytest.mark.parametrize('ext', ('md', 'Md', '.md', '*')) |
| def test_fixes_markdown_files(tmpdir, ext): |
| path = tmpdir.join('test.md') |
| path.write( |
| 'foo \n' # leaves alone |
| 'bar \n' # less than two so it is removed |
| 'baz \n' # more than two so it becomes two spaces |
| '\t\n' # trailing tabs are stripped anyway |
| '\n ', # whitespace at the end of the file is removed |
| ) |
| ret = main((path.strpath, '--markdown-linebreak-ext={}'.format(ext))) |
| assert ret == 1 |
| assert path.read() == ( |
| 'foo \n' |
| 'bar\n' |
| 'baz \n' |
| '\n' |
| '\n' |
| ) |
| |
| |
| @pytest.mark.parametrize('arg', ('--', 'a.b', 'a/b', '')) |
| def test_markdown_linebreak_ext_badopt(arg): |
| with pytest.raises(SystemExit) as excinfo: |
| main(['--markdown-linebreak-ext', arg]) |
| assert excinfo.value.code == 2 |
| |
| |
| def test_prints_warning_with_no_markdown_ext(capsys, tmpdir): |
| f = tmpdir.join('f').ensure() |
| assert main((f.strpath, '--no-markdown-linebreak-ext')) == 0 |
| out, _ = capsys.readouterr() |
| assert out == '--no-markdown-linebreak-ext now does nothing!\n' |
| |
| |
| def test_preserve_non_utf8_file(tmpdir): |
| non_utf8_bytes_content = b'<a>\xe9 \n</a>\n' |
| path = tmpdir.join('file.txt') |
| path.write_binary(non_utf8_bytes_content) |
| ret = main([path.strpath]) |
| assert ret == 1 |
| assert path.size() == (len(non_utf8_bytes_content) - 1) |