Write a test to check if a post has been removed from the old group

I need to check that the post has disappeared from the old group page. I need to get my old group for her slack.

old_group_response = self.authorized_client.get( reverse('group_list', args=(self.group.slug,)) ) And compare that

old_group_response.context['page_obj'].paginator.count equals zero. This means that there are no posts in our old group. And check another new group, that there is 1 post there. How can I write it in the right way? I know what rubbish is written here (I'm just learning), this is what I was able to sketch.

from django import forms from django.test import Client, TestCase from django.urls import reverse

from ..models import Group, Post, User

NEW_POST = reverse('posts:post_create')

class PostFormTests(TestCase): @classmethod def setUpClass(cls): super().setUpClass() cls.author_auth = User.objects.create_user(username='test auth') cls.not_author = User.objects.create_user(username='Not Author') cls.group = Group.objects.create( title='Test group_title', slug='test_slug', description='Test description')

def setUp(self):
    self.authorized_client = Client()
    self.authorized_client.force_login(PostFormTests.author_auth)
    self.authorized_client_not_author = Client()
    self.authorized_client_not_author.force_login(
        PostFormTests.not_author)

def test_post_old_group_response(self):
    """ Check if a post has been removed from the old group."""
    post = Post.objects.create(
        group=PostFormTests.group,
        author=PostFormTests.author_auth,
        text='test post')
    group_2 = Group.objects.create(
        title='Test group_title2',
        slug='test_slug2',
        description='Test description2')
    posts_count = Post.objects.count()
    form_data = {
        'text': 'text_post',
        'group': group_2.id}
    old_group_response = self.authorized_client.get(
        reverse('posts:group_list', args=(self.group.slug)),
        data=form_data,
        follow=True)
    self.assertEqual(
        old_group_response, reverse(
            'posts:post_detail', kwargs={'post_id': post.pk}))
    self.assertEqual(Post.objects.count(), posts_count)
    self.assertEqual(old_group_response.context[
        'page_obj'].paginator.count == 0)
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