UPD: improved tests.

dav_auth/tests/test_emails.py

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from django.apps import apps
 from django.contrib.auth import get_user_model
 from django.core import mail as django_mail
 from django.test import TestCase
@@ -16,6 +17,12 @@ class EmailsTestCase(TestCase):
         model = get_user_model()
         self.user = model.objects.create_user(username=TEST_USERNAME, password=TEST_PASSWORD, email=TEST_EMAIL)
 
+        self.email_sender = 'Automatic Software Test <root@localhost>'
+        self.email_subject_prefix = '[Test]'
+        app_config = apps.get_app_config('dav_base')
+        app_config.settings.email_sender = self.email_sender
+        app_config.settings.email_subject_prefix = self.email_subject_prefix
+
     def test_send(self):
         password = TEST_PASSWORD[::-1]
 
@@ -24,8 +31,16 @@ class EmailsTestCase(TestCase):
 
         self.assertEqual(len(django_mail.outbox), 1)
         mail = django_mail.outbox[0]
+
         recipient = u'"%s" <%s>' % (self.user.get_full_name(), self.user.email)
         recipients = mail.recipients()
         self.assertIn(recipient, recipients)
         self.assertEqual(len(recipients), 1)
+
+        self.assertEqual(mail.from_email, self.email_sender)
+
+        subject = u'Zugangsdaten'
+        subject = u'{} {}'.format(self.email_subject_prefix, subject)
+        self.assertEqual(mail.subject, subject)
+
         self.assertIn(password, mail.body)