diff options
Diffstat (limited to 'Lib/test/test_io.py')
| -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 0dc9d6d..53cabbb 100644 --- a/Lib/test/test_io.py +++ b/Lib/test/test_io.py @@ -922,6 +922,14 @@ class BufferedReaderTest(unittest.TestCase, CommonBufferedTests): finally: support.unlink(support.TESTFN) + def test_unseekable(self): + bufio = self.tp(self.MockUnseekableIO(b"A" * 10)) + self.assertRaises(self.UnsupportedOperation, bufio.tell) + self.assertRaises(self.UnsupportedOperation, bufio.seek, 0) + bufio.read(1) + self.assertRaises(self.UnsupportedOperation, bufio.seek, 0) + self.assertRaises(self.UnsupportedOperation, bufio.tell) + def test_misbehaved_io(self): rawio = self.MisbehavedRawIO((b"abc", b"d", b"efg")) bufio = self.tp(rawio) |