diff --git a/rest_auth/tests/test_base.py b/rest_auth/tests/mixins.py
similarity index 78%
rename from rest_auth/tests/test_base.py
rename to rest_auth/tests/mixins.py
index 48d94f0..437f458 100644
--- a/rest_auth/tests/test_base.py
+++ b/rest_auth/tests/mixins.py
@@ -6,6 +6,14 @@ from django.test.client import Client, MULTIPART_CONTENT
 from django.utils.encoding import force_text
 
 from rest_framework import status
+from rest_framework import permissions
+
+
+class CustomPermissionClass(permissions.BasePermission):
+    message = 'You shall not pass!'
+
+    def has_permission(self, request, view):
+        return False
 
 
 class APIClient(Client):
@@ -17,7 +25,7 @@ class APIClient(Client):
         return self.generic('OPTIONS', path, data, content_type, **extra)
 
 
-class BaseAPITestCase(object):
+class TestsMixin(object):
 
     """
     base for API tests:
@@ -64,29 +72,6 @@ class BaseAPITestCase(object):
     def patch(self, *args, **kwargs):
         return self.send_request('patch', *args, **kwargs)
 
-    # def put(self, *args, **kwargs):
-    #     return self.send_request('put', *args, **kwargs)
-
-    # def delete(self, *args, **kwargs):
-    #     return self.send_request('delete', *args, **kwargs)
-
-    # def options(self, *args, **kwargs):
-    #     return self.send_request('options', *args, **kwargs)
-
-    # def post_file(self, *args, **kwargs):
-    #     kwargs['content_type'] = MULTIPART_CONTENT
-    #     return self.send_request('post', *args, **kwargs)
-
-    # def get_file(self, *args, **kwargs):
-    #     content_type = None
-    #     if 'content_type' in kwargs:
-    #         content_type = kwargs.pop('content_type')
-    #     response = self.send_request('get', *args, **kwargs)
-    #     if content_type:
-    #         self.assertEqual(
-    #             bool(filter(lambda x: content_type in x, response._headers['content-type'])), True)
-    #     return response
-
     def init(self):
         settings.DEBUG = True
         self.client = APIClient()
diff --git a/rest_auth/tests/test_api.py b/rest_auth/tests/test_api.py
index 0356d19..d33635c 100644
--- a/rest_auth/tests/test_api.py
+++ b/rest_auth/tests/test_api.py
@@ -5,13 +5,18 @@ from django.core import mail
 from django.conf import settings
 from django.utils.encoding import force_text
 
-from rest_framework import status
 from allauth.account import app_settings as account_app_settings
-from .test_base import BaseAPITestCase
+from rest_framework import status
+from rest_framework.test import APIRequestFactory
+
+from rest_auth.registration.views import RegisterView
+from rest_auth.registration.app_settings import register_permission_classes
+
+from .mixins import TestsMixin, CustomPermissionClass
 
 
 @override_settings(ROOT_URLCONF="tests.urls")
-class APITestCase1(TestCase, BaseAPITestCase):
+class APIBasicTests(TestsMixin, TestCase):
     """
     Case #1:
     - user profile: defined
@@ -398,6 +403,20 @@ class APITestCase1(TestCase, BaseAPITestCase):
         self._login()
         self._logout()
 
+    @override_settings(REST_AUTH_REGISTER_PERMISSION_CLASSES=(CustomPermissionClass,))
+    def test_registration_with_custom_permission_class(self):
+
+        class CustomRegisterView(RegisterView):
+            permission_classes = register_permission_classes()
+            authentication_classes = ()
+
+        factory = APIRequestFactory()
+        request = factory.post('/customer/details', self.REGISTRATION_DATA, format='json')
+
+        response = CustomRegisterView.as_view()(request)
+        self.assertEqual(response.data['detail'], CustomPermissionClass.message)
+        self.assertEqual(response.status_code, status.HTTP_403_FORBIDDEN)
+
     @override_settings(REST_USE_JWT=True)
     def test_registration_with_jwt(self):
         user_count = get_user_model().objects.all().count()
diff --git a/rest_auth/tests/test_social.py b/rest_auth/tests/test_social.py
index 47ac0bb..dff6438 100644
--- a/rest_auth/tests/test_social.py
+++ b/rest_auth/tests/test_social.py
@@ -11,11 +11,11 @@ import responses
 
 from rest_framework import status
 
-from .test_base import BaseAPITestCase
+from .mixins import TestsMixin
 
 
 @override_settings(ROOT_URLCONF="tests.urls")
-class TestSocialAuth(TestCase, BaseAPITestCase):
+class TestSocialAuth(TestsMixin, TestCase):
 
     USERNAME = 'person'
     PASS = 'person'