Issue #12451: Add support.create_empty_file()
We don't need to create a temporary buffered binary or text file object just to
create an empty file.
Replace also os.fdopen(handle).close() by os.close(handle).
diff --git a/Lib/test/test_mailbox.py b/Lib/test/test_mailbox.py
index 18aeec7..8c8920a 100644
--- a/Lib/test/test_mailbox.py
+++ b/Lib/test/test_mailbox.py
@@ -902,8 +902,7 @@
# Now, write something into cur and remove it. This changes
# the mtime and should cause a re-read.
filename = os.path.join(self._path, 'cur', 'stray-file')
- f = open(filename, 'w')
- f.close()
+ support.create_empty_file(filename)
os.unlink(filename)
self._box._refresh()
self.assertTrue(refreshed())