diff options
Diffstat (limited to 'Lib/test/test_io.py')
| -rw-r--r-- | Lib/test/test_io.py | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py index d927bb96ce..14352ff84f 100644 --- a/Lib/test/test_io.py +++ b/Lib/test/test_io.py @@ -2971,6 +2971,34 @@ class TextIOWrapperTest(unittest.TestCase): finally: StatefulIncrementalDecoder.codecEnabled = 0 + def test_multibyte_seek_and_tell(self): + f = self.open(support.TESTFN, "w", encoding="euc_jp") + f.write("AB\n\u3046\u3048\n") + f.close() + + f = self.open(support.TESTFN, "r", encoding="euc_jp") + self.assertEqual(f.readline(), "AB\n") + p0 = f.tell() + self.assertEqual(f.readline(), "\u3046\u3048\n") + p1 = f.tell() + f.seek(p0) + self.assertEqual(f.readline(), "\u3046\u3048\n") + self.assertEqual(f.tell(), p1) + f.close() + + def test_seek_with_encoder_state(self): + f = self.open(support.TESTFN, "w", encoding="euc_jis_2004") + f.write("\u00e6\u0300") + p0 = f.tell() + f.write("\u00e6") + f.seek(p0) + f.write("\u0300") + f.close() + + f = self.open(support.TESTFN, "r", encoding="euc_jis_2004") + self.assertEqual(f.readline(), "\u00e6\u0300\u0300") + f.close() + def test_encoded_writes(self): data = "1234567890" tests = ("utf-16", |