Issue #22854: Merge UnsupportedOperation fixes from 3.5

1 files changed, 6 insertions, 3 deletions

diff --git a/Lib/test/test_io.py b/Lib/test/test_io.py
index 51c250b40b..1944a04573 100644
--- a/Lib/test/test_io.py
+++ b/Lib/test/test_io.py
@@ -468,7 +468,11 @@ class IOTest(unittest.TestCase):
     def test_open_handles_NUL_chars(self):
         fn_with_NUL = 'foo\0bar'
         self.assertRaises(ValueError, self.open, fn_with_NUL, 'w')
-        self.assertRaises(ValueError, self.open, bytes(fn_with_NUL, 'ascii'), 'w')
+
+        bytes_fn = bytes(fn_with_NUL, 'ascii')
+        with warnings.catch_warnings():
+            warnings.simplefilter("ignore", DeprecationWarning)
+            self.assertRaises(ValueError, self.open, bytes_fn, 'w')
 
     def test_raw_file_io(self):
         with self.open(support.TESTFN, "wb", buffering=0) as f:
@@ -3173,8 +3177,7 @@ class CTextIOWrapperTest(TextIOWrapperTest):
 
 class PyTextIOWrapperTest(TextIOWrapperTest):
     io = pyio
-    #shutdown_error = "LookupError: unknown encoding: ascii"
-    shutdown_error = "TypeError: 'NoneType' object is not iterable"
+    shutdown_error = "LookupError: unknown encoding: ascii"
 
 
 class IncrementalNewlineDecoderTest(unittest.TestCase):