Added a few tests for smtp EmailBackend.
@@ -1334,10 +1334,16 @@ class SMTPBackendTests(BaseEmailBackendTests, SMTPBackendTestsBase):
open() returns whether it opened a connection.
"""
backend = smtp.EmailBackend(username='', password='')
- self.assertFalse(backend.connection)
+ self.assertIsNone(backend.connection)
opened = backend.open()
backend.close()
- self.assertTrue(opened)
+ self.assertIs(opened, True)
+
+ def test_reopen_connection(self):
+ backend = smtp.EmailBackend()
+ # Simulate an already open connection.
+ backend.connection = True
+ self.assertIs(backend.open(), False)
def test_server_login(self):
"""
@@ -1366,6 +1372,14 @@ class SMTPBackendTests(BaseEmailBackendTests, SMTPBackendTestsBase):
backend = smtp.EmailBackend()
self.assertFalse(backend.use_tls)
+ def test_ssl_tls_mutually_exclusive(self):
+ msg = (
+ 'EMAIL_USE_TLS/EMAIL_USE_SSL are mutually exclusive, so only set '
+ 'one of those settings to True.'
+ )
+ with self.assertRaisesMessage(ValueError, msg):
+ smtp.EmailBackend(use_ssl=True, use_tls=True)
+
@override_settings(EMAIL_USE_SSL=True)
def test_email_ssl_use_settings(self):
backend = smtp.EmailBackend()
@@ -1493,6 +1507,14 @@ class SMTPBackendTests(BaseEmailBackendTests, SMTPBackendTestsBase):
email = EmailMessage('Subject', 'Content', 'from@example.com', ['to@example.com'])
self.assertEqual(backend.send_messages([email]), None)
+ def test_send_messages_zero_sent(self):
+ """A message isn't sent if it doesn't have any recipients."""
+ backend = smtp.EmailBackend()
+ backend.connection = True
+ email = EmailMessage('Subject', 'Content', 'from@example.com', to=[])
+ sent = backend.send_messages([email])
+ self.assertEqual(sent, 0)
+
class SMTPBackendStoppedServerTests(SMTPBackendTestsBase):
"""
