1 files changed, 18 insertions, 7 deletions
diff --git a/Lib/test/test_fileio.py b/Lib/test/test_fileio.py
index c37482e..7c1a5ce 100644
--- a/Lib/test/test_fileio.py
+++ b/Lib/test/test_fileio.py
@@ -60,6 +60,15 @@ class AutoFileTests(unittest.TestCase):
             self.assertRaises((AttributeError, TypeError),
                               setattr, f, attr, 'oops')
 
+    def testBlksize(self):
+        # test private _blksize attribute
+        blksize = io.DEFAULT_BUFFER_SIZE
+        # try to get preferred blksize from stat.st_blksize, if available
+        if hasattr(os, 'fstat'):
+            fst = os.fstat(self.f.fileno())
+            blksize = getattr(fst, 'st_blksize', blksize)
+        self.assertEqual(self.f._blksize, blksize)
+
     def testReadinto(self):
         # verify readinto
         self.f.write(bytes([1, 2]))
@@ -103,11 +112,13 @@ class AutoFileTests(unittest.TestCase):
         self.assertRaises(TypeError, self.f.write, "Hello!")
 
     def testRepr(self):
-        self.assertEqual(repr(self.f), "<_io.FileIO name=%r mode=%r>"
-                                        % (self.f.name, self.f.mode))
+        self.assertEqual(
+            repr(self.f), "<_io.FileIO name=%r mode=%r closefd='%d'>"
+                          % (self.f.name, self.f.mode, self.f.closefd))
         del self.f.name
-        self.assertEqual(repr(self.f), "<_io.FileIO fd=%r mode=%r>"
-                                        % (self.f.fileno(), self.f.mode))
+        self.assertEqual(
+            repr(self.f), "<_io.FileIO fd=%r mode=%r closefd='%d'>"
+                          % (self.f.fileno(), self.f.mode, self.f.closefd))
         self.f.close()
         self.assertEqual(repr(self.f), "<_io.FileIO [closed]>")
 
@@ -141,7 +152,7 @@ class AutoFileTests(unittest.TestCase):
     def testOpendir(self):
         # Issue 3703: opening a directory should fill the errno
         # Windows always returns "[Errno 13]: Permission denied
-        # Unix calls dircheck() and returns "[Errno 21]: Is a directory"
+        # Unix uses fstat and returns "[Errno 21]: Is a directory"
         try:
             _FileIO('.', 'r')
         except OSError as e:
@@ -352,8 +363,8 @@ class OtherFileTests(unittest.TestCase):
 
     def testConstructorHandlesNULChars(self):
         fn_with_NUL = 'foo\0bar'
-        self.assertRaises(TypeError, _FileIO, fn_with_NUL, 'w')
-        self.assertRaises(TypeError, _FileIO, bytes(fn_with_NUL, 'ascii'), 'w')
+        self.assertRaises(ValueError, _FileIO, fn_with_NUL, 'w')
+        self.assertRaises(ValueError, _FileIO, bytes(fn_with_NUL, 'ascii'), 'w')
 
     def testInvalidFd(self):
         self.assertRaises(ValueError, _FileIO, -10)