Use different backends depending on the version.

Author: mblayman

tests/test_serializers.py

@@ -1,8 +1,10 @@
 import unittest
 from distutils.version import StrictVersion
 
-import rest_framework
+import django
 from django.test import TestCase
+from django.test.utils import override_settings
+import rest_framework
 
 from rest_framework_jwt.compat import get_user_model
 from rest_framework_jwt.serializers import JSONWebTokenSerializer
@@ -68,6 +70,9 @@ def test_invalid_credentials(self):
         self.assertFalse(is_valid)
         self.assertEqual(serializer.errors, expected_error)
 
+    @unittest.skipIf(
+        django.VERSION[1] >= 10,
+        reason='The ModelBackend does not permit login when is_active is False.')
     def test_disabled_user(self):
         self.user.is_active = False
         self.user.save()
@@ -82,6 +87,25 @@ def test_disabled_user(self):
         self.assertFalse(is_valid)
         self.assertEqual(serializer.errors, expected_error)
 
+    @unittest.skipUnless(
+        django.VERSION[1] >= 10,
+        reason='The AllowAllUsersModelBackend permits login when is_active is False.')
+    @override_settings(AUTHENTICATION_BACKENDS=[
+        'django.contrib.auth.backends.AllowAllUsersModelBackend'])
+    def test_disabled_user_all_users_backend(self):
+        self.user.is_active = False
+        self.user.save()
+
+        serializer = JSONWebTokenSerializer(data=self.data)
+        is_valid = serializer.is_valid()
+
+        expected_error = {
+            'non_field_errors': ['User account is disabled.']
+        }
+
+        self.assertFalse(is_valid)
+        self.assertEqual(serializer.errors, expected_error)
+
     def test_required_fields(self):
         serializer = JSONWebTokenSerializer(data={})
         is_valid = serializer.is_valid()