test_docs: Fix unnecessary info-level logging in tests.

zerver/tests/test_docs.py

@@ -1,5 +1,6 @@
 # -*- coding: utf-8 -*-
 
+import mock
 import os
 import subprocess
 
@@ -78,7 +79,8 @@ class DocPageTest(ZulipTestCase):
         self._test('/errors/404/', 'Page not found')
         self._test('/errors/5xx/', 'Internal server error')
 
-        with self.settings(EMAIL_BACKEND='zproject.email_backends.EmailLogBackEnd'):
+        with self.settings(EMAIL_BACKEND='zproject.email_backends.EmailLogBackEnd'), \
+                mock.patch('logging.info', return_value=None):
             # For reaching full coverage for clear_emails function
             result = self.client_get('/emails/clear/')
             self.assertEqual(result.status_code, 302)

zproject/email_backends.py

@@ -1,3 +1,5 @@
+import logging
+
 from typing import List
 
 from django.conf import settings
@@ -39,5 +41,5 @@ class EmailLogBackEnd(BaseEmailBackend):
         for email in email_messages:
             self.log_email(email)
             email_log_url = settings.ROOT_DOMAIN_URI + "/emails"
-            print("You can access all the emails sent in development environment by visiting ", email_log_url)
+            logging.info("Emails sent in development are available at ", email_log_url)
         return len(email_messages)