commit 62e3973395fb9fab2eb8f651bcd0fea4e695e1cf
author Dong-hee Na <donghee.na92@gmail.com> Tue Jan 14 16:49:59 2020 +0900
committer Victor Stinner <vstinner@python.org> Tue Jan 14 08:49:59 2020 +0100
tree 63c213ab1284ed6e7b28f858e7fecac4593f6246
parent 2de064e6305008d16571a21e5f0c178e62e81f27

bpo-39259: smtp.SMTP/SMTP_SSL now reject timeout = 0 (GH-17958)

Lib/test/test_smtplib.py

diff --git a/Lib/test/test_smtplib.py b/Lib/test/test_smtplib.py
index faf013a..cc5c4b1 100644
--- a/Lib/test/test_smtplib.py
+++ b/Lib/test/test_smtplib.py
@@ -122,6 +122,11 @@
         self.assertIsNone(smtp.sock.gettimeout())
         smtp.close()
 
+    def testTimeoutZero(self):
+        mock_socket.reply_with(b"220 Hola mundo")
+        with self.assertRaises(ValueError):
+            smtplib.SMTP(HOST, self.port, timeout=0)
+
     def testTimeoutValue(self):
         mock_socket.reply_with(b"220 Hola mundo")
         smtp = smtplib.SMTP(HOST, self.port, timeout=30)