commit b6b1ab4fa83c000f14bd63c92d9182fbd507d0be
author Martin Panter <vadmium+py@gmail.com> Mon Feb 29 00:31:38 2016 +0000
committer Martin Panter <vadmium+py@gmail.com> Mon Feb 29 00:31:38 2016 +0000
tree 9daa8c046428ef7caf829cf3898227a069686f55
parent 97b6e0bd1b1305f3273b1de9d03f238dea161951

Issue #26385: Cleanup NamedTemporaryFile if fdopen() fails, by SilentGhost

Lib/test/test_tempfile.py

diff --git a/Lib/test/test_tempfile.py b/Lib/test/test_tempfile.py
index 3d0ac57..078e4a9 100644
--- a/Lib/test/test_tempfile.py
+++ b/Lib/test/test_tempfile.py
@@ -827,6 +827,13 @@
             os.close = old_close
             os.fdopen = old_fdopen
 
+    def test_bad_mode(self):
+        dir = tempfile.mkdtemp()
+        self.addCleanup(support.rmtree, dir)
+        with self.assertRaises(TypeError):
+            tempfile.NamedTemporaryFile(mode=(), dir=dir)
+        self.assertEqual(os.listdir(dir), [])
+
     # How to test the mode and bufsize parameters?
 
 test_classes.append(test_NamedTemporaryFile)