#691291: codecs.open() should not convert end of lines on reading and writing.
diff --git a/Lib/test/test_codecs.py b/Lib/test/test_codecs.py
index 175f92b..8caf018 100644
--- a/Lib/test/test_codecs.py
+++ b/Lib/test/test_codecs.py
@@ -437,6 +437,21 @@
def test_errors(self):
self.assertRaises(UnicodeDecodeError, codecs.utf_16_decode, "\xff", "strict", True)
+ def test_bug691291(self):
+ # Files are always opened in binary mode, even if no binary mode was
+ # specified. This means that no automatic conversion of '\n' is done
+ # on reading and writing.
+ s1 = u'Hello\r\nworld\r\n'
+
+ s = s1.encode(self.encoding)
+ try:
+ with open(test_support.TESTFN, 'wb') as fp:
+ fp.write(s)
+ with codecs.open(test_support.TESTFN, 'U', encoding=self.encoding) as reader:
+ self.assertEqual(reader.read(), s1)
+ finally:
+ test_support.unlink(test_support.TESTFN)
+
class UTF16LETest(ReadTest):
encoding = "utf-16-le"