Use default_storage directly

tests/backends/test_vanilla_django_backend.py

@@ -5,12 +5,12 @@
 
 from django.test import TestCase, override_settings
 from django.core.mail import EmailMessage, EmailMultiAlternatives
-from django.core.files.storage import storages
+from django.core.files.storage import default_storage
 from django.template import TemplateDoesNotExist
 from django.core import mail
 
 import pytest
-from mock import patch, Mock
+from unittest.mock import patch, Mock
 from anymail.message import AnymailMessage
 
 from templated_email.backends.vanilla_django import TemplateBackend, EmailRenderException
@@ -69,7 +69,7 @@ class TemplateBackendTestCase(MockedNetworkTestCaseMixin,
     template_backend_klass = TemplateBackend
 
     def setUp(self):
-        self.storage_mock = Mock(wraps=storages["default"])()
+        self.storage_mock = Mock(wraps=default_storage)()
         self.storage_mock.save = Mock()
         self.backend = self.template_backend_klass()
         self.context = {'username': 'vintasoftware',

tests/test_get_templated_mail.py

@@ -1,6 +1,6 @@
 from django.test import TestCase
 
-from mock import patch
+from unittest.mock import patch
 
 from templated_email import get_templated_mail
 

tests/test_send_templated_mail.py

@@ -1,6 +1,6 @@
 from django.test import TestCase
 
-from mock import patch, Mock
+from unittest.mock import patch, Mock
 
 from templated_email import send_templated_mail
 

tox-requirements.txt

@@ -2,7 +2,6 @@ django-anymail
 django-pytest
 django-render-block
 html2text
-mock
 pytest
 pytest-django
 pytest-pythonpath