Fix mixed-line-endings --fix=... when whole file is a different ending
diff --git a/tests/mixed_line_ending_test.py b/tests/mixed_line_ending_test.py
index 808295b..23837cd 100644
--- a/tests/mixed_line_ending_test.py
+++ b/tests/mixed_line_ending_test.py
@@ -101,3 +101,13 @@
assert ret == 1
assert path.read_binary() == b'foo\r\nbar\r\nbaz\r\n'
+
+
+def test_fix_lf_all_crlf(tmpdir):
+ """Regression test for #239"""
+ path = tmpdir.join('input.txt')
+ path.write_binary(b'foo\r\nbar\r\n')
+ ret = main(('--fix=lf', path.strpath))
+
+ assert ret == 1
+ assert path.read_binary() == b'foo\nbar\n'
