Testing UpdateView in Django using Unittest

I am writing a test case for my Django application named "blog". I am getting the following errors :-

1. I am testing my view function i.e PostUpdateview the code is 

class PostUpdateView(LoginRequiredMixin, UserOwnerMixin, UpdateView):

    model = Post

    form_class = PostModelForm

    template_name = 'posts/update_view.html'

    def get_context_data(self, *args, **kwargs):

        context = super(PostUpdateView, self).get_context_data(*args, **kwargs)

        context['title'] = self.object.title

        print(context['title'])

        return context

    def form_valid(self, form):

        updated_post = form.save(commit=False)

        form.instance.user = self.request.user

        updated_post.save()

        self.object = updated_post

        return super(PostUpdateView, self).form_valid(form)

    def get_success_url(self):

        post_slug = self.slug

        print(post_slug)

        return reverse('posts:detail', kwargs={'slug': post_slug}

The test code for the same is :-

class TestPostUpdateView(BaseUserTestCase):

    def setUp(self):

        # call BaseUserTestCase.setUp()

        super(TestPostUpdateView, self).setUp()

        # Instantiate the view directly. Never do this outside a test!

        self.view = PostUpdateView()

        # Generate a fake request

        request = self.factory.get('/test-title/update')

        # Attach the user to the request

        request.user = self.user

        # Attach the request to the view

        self.view.request = request

    def test_get_success_url(self):

        # Expect: '/users/testuser/', as that is the default username for

        #   self.make_user()

        self.assertEqual(

            self.view.get_success_url(),

            '/posts/test-title/'

        )

    def test_get_object(self):

        # Expect: self.user, as that is the request's user object

        self.assertEqual(

            self.view.get_object(),

            self.title

        )

The traceback is :-

ERROR: test_get_object (blog.test.test_views.TestPostUpdateView)

----------------------------------------------------------------------

Traceback (most recent call last):

  File "/media/abhi/300Gb/Office/itoucan_2017/itoucan/blog/test/test_views.py", line 96, in test_get_object

    self.view.get_object(),

  File "/media/abhi/300Gb/Office/venv/lib/python3.5/site-packages/django/views/generic/detail.py", line 35, in get_object

    pk = self.kwargs.get(self.pk_url_kwarg)

AttributeError: 'PostUpdateView' object has no attribute 'kwargs'

======================================================================

ERROR: test_get_success_url (blog.test.test_views.TestPostUpdateView)

----------------------------------------------------------------------

Traceback (most recent call last):

  File "/media/abhi/300Gb/Office/itoucan_2017/itoucan/blog/test/test_views.py", line 89, in test_get_success_url

    self.view.get_success_url(),

  File "/media/abhi/300Gb/Office/itoucan_2017/itoucan/blog/views.py", line 45, in get_success_url

    post_slug = self.slug

AttributeError: 'PostUpdateView' object has no attribute 'slug'

What might be the problem ?

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