diff --git a/gnuviechadmin/osusers/tests/test_admin.py b/gnuviechadmin/osusers/tests/test_admin.py
index fe2faaa..12091ba 100644
--- a/gnuviechadmin/osusers/tests/test_admin.py
+++ b/gnuviechadmin/osusers/tests/test_admin.py
@@ -6,10 +6,12 @@ from django.test.utils import override_settings
 from mock import patch, Mock
 
 from osusers.models import (
+    DeleteTaskResult,
     Group,
     User,
 )
 from osusers.admin import (
+    DeleteTaskResultAdmin,
     GroupAdmin,
     PASSWORD_MISMATCH_ERROR,
     UserAdmin,
@@ -135,3 +137,27 @@ class GroupAdminTest(TestCase):
         self.assertEqual(len(inlines), len(GroupAdmin.inlines))
         for index in range(len(inlines)):
             self.assertIsInstance(inlines[index], GroupAdmin.inlines[index])
+
+
+class DeleteTaskResultAdminTest(TestCase):
+    def setUp(self):
+        site = AdminSite()
+        self.dtradmin = DeleteTaskResultAdmin(DeleteTaskResult, site)
+        super(DeleteTaskResultAdminTest, self).setUp()
+
+    def test_has_add_permission_returns_false_without_object(self):
+        self.assertFalse(
+            self.dtradmin.has_add_permission(Mock(name='request')))
+
+    def test_has_add_permission_returns_false_with_object(self):
+        self.assertFalse(
+            self.dtradmin.has_add_permission(Mock(name='request'),
+                                             Mock(name='test')))
+
+    def test_get_queryset_calls_update_taskstatus(self):
+        with patch('osusers.admin.admin.ModelAdmin.get_queryset') as mock:
+            entrymock = Mock(name='entry')
+            mock.return_value = [entrymock]
+            requestmock = Mock(name='request')
+            self.dtradmin.get_queryset(requestmock)
+            entrymock.update_taskstatus.assert_calledwith()