Can't use assertTemplateUsed with unitest.TestCase

Question

Please help, i'm fairly new to Django and not sure what's the best way to proceed with my unit-tests. So, i have a large django app, and it has dozens of views-methods, and the postgresql schemas get pretty complex. I've read that if I use "from django.test import TestCase" then the test database is flushed after running each unit-test. I wanted to prevent from flushing the db in between unit-tests within the same class, so i started using "from unittest import TestCase". That did the trick and the db is preserved in between unit-tests, but now the statement self.assertTemplateUsed(response, 'samplepage.html') gives me errors AttributeError: 'TestViews' object has no attribute 'assertTemplateUsed'. What can I do? Is there an alternative to 'assertTemplateUsed' that can be used with unittest.TestCase? Many thanks in advance!