Don't print to standard out during a test

src/documents/tests/test_mail.py

@@ -3,6 +3,7 @@ import os
 import magic
 
 from hashlib import md5
+from unittest import mock
 
 from django.conf import settings
 from django.test import TestCase
@@ -27,6 +28,7 @@ class TestMessage(TestCase):
 
         with open(self.sample, "rb") as f:
 
+            with mock.patch("logging.StreamHandler.emit") as __:
                 message = Message(f.read())
 
             self.assertTrue(message)