#4764 set IOError.filename when trying to open a directory on POSIX platforms
diff --git a/Lib/test/test_file.py b/Lib/test/test_file.py
index 96f6da2..b4f494b 100644
--- a/Lib/test/test_file.py
+++ b/Lib/test/test_file.py
@@ -125,6 +125,19 @@
class OtherFileTests(unittest.TestCase):
+ def testOpenDir(self):
+ this_dir = os.path.dirname(__file__)
+ for mode in (None, "w"):
+ try:
+ if mode:
+ f = open(this_dir, mode)
+ else:
+ f = open(this_dir)
+ except IOError as e:
+ self.assertEqual(e.filename, this_dir)
+ else:
+ self.fail("opening a directory didn't raise an IOError")
+
def testModeStrings(self):
# check invalid mode strings
for mode in ("", "aU", "wU+"):