commit 2f89aa678549eae1557247a36ed9194af9a4f7b7
author Antoine Pitrou <solipsis@pitrou.net> Sat Aug 02 21:02:48 2008 +0000
committer Antoine Pitrou <solipsis@pitrou.net> Sat Aug 02 21:02:48 2008 +0000
tree b8de431ef79fb42ca92d8601977a8ab5ac533ca8
parent 07431a302a3698bec8b9eb9debc9f630479141e3

#2538: bytes objects can only provide read-only buffers

Lib/test/test_bytes.py

diff --git a/Lib/test/test_bytes.py b/Lib/test/test_bytes.py
index 5bda935..230dbf4 100644
--- a/Lib/test/test_bytes.py
+++ b/Lib/test/test_bytes.py
@@ -453,6 +453,11 @@
 class BytesTest(BaseBytesTest):
     type2test = bytes
 
+    def test_buffer_is_readonly(self):
+        with open(sys.stdin.fileno(), "rb", buffering=0) as f:
+            self.assertRaises(TypeError, f.readinto, b"")
+
+
 class ByteArrayTest(BaseBytesTest):
     type2test = bytearray