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| author | Oren Milman <orenmn@gmail.com> | 2017-08-26 17:29:40 (GMT) |
|---|---|---|
| committer | Serhiy Storchaka <storchaka@gmail.com> | 2017-08-26 17:29:40 (GMT) |
| commit | 9bcbc6cba385a83cac8f1ff430cad7617184d2bc (patch) | |
| tree | 93788d8c91a855ce70ac39d466cd2dc9e8633918 /Lib/test | |
| parent | 8e67981fc8e1bf3cb9774b5fbf4a39b8d65ba4ff (diff) | |
| download | cpython-9bcbc6cba385a83cac8f1ff430cad7617184d2bc.zip cpython-9bcbc6cba385a83cac8f1ff430cad7617184d2bc.tar.gz cpython-9bcbc6cba385a83cac8f1ff430cad7617184d2bc.tar.bz2 | |
[3.6] bpo-31271: Fix an assertion failure in io.TextIOWrapper.write. (GH-3201) (#3209)
(cherry picked from commit a5b4ea15b61e3f3985f4f0748a18f8b888a63532)
Diffstat (limited to 'Lib/test')
| -rw-r--r-- | Lib/test/test_io.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py index 6a2c7a9f..7057c92 100644 --- a/Lib/test/test_io.py +++ b/Lib/test/test_io.py @@ -3163,6 +3163,14 @@ class TextIOWrapperTest(unittest.TestCase): t = self.TextIOWrapper(self.StringIO('a')) self.assertRaises(TypeError, t.read) + def test_illegal_encoder(self): + # Issue 31271: Calling write() while the return value of encoder's + # encode() is invalid shouldn't cause an assertion failure. + rot13 = codecs.lookup("rot13") + with support.swap_attr(rot13, '_is_text_encoding', True): + t = io.TextIOWrapper(io.BytesIO(b'foo'), encoding="rot13") + self.assertRaises(TypeError, t.write, 'bar') + def test_illegal_decoder(self): # Issue #17106 # Bypass the early encoding check added in issue 20404 |