django1/tests/admin_views/test_history_view.py

from django.contrib.admin.models import LogEntry
from django.contrib.auth.models import User
from django.test import TestCase, override_settings
from django.urls import reverse

from .models import City, State


@override_settings(ROOT_URLCONF="admin_views.urls")
class AdminHistoryViewTests(TestCase):
    @classmethod
    def setUpTestData(cls):
        cls.superuser = User.objects.create_superuser(
            username="super",
            password="secret",
            email="super@example.com",
        )

    def setUp(self):
        self.client.force_login(self.superuser)

    def test_changed_message_uses_form_labels(self):
        """
        Admin's model history change messages use form labels instead of
        field names.
        """
        state = State.objects.create(name="My State Name")
        city = City.objects.create(name="My City Name", state=state)
        change_dict = {
            "name": "My State Name 2",
            "nolabel_form_field": True,
            "city_set-0-name": "My City name 2",
            "city_set-0-id": city.pk,
            "city_set-TOTAL_FORMS": "3",
            "city_set-INITIAL_FORMS": "1",
            "city_set-MAX_NUM_FORMS": "0",
        }
        state_change_url = reverse("admin:admin_views_state_change", args=(state.pk,))
        self.client.post(state_change_url, change_dict)
        logentry = LogEntry.objects.filter(content_type__model__iexact="state").latest(
            "id"
        )
        self.assertEqual(
            logentry.get_change_message(),
            "Changed State name (from form’s Meta.labels), "
            "nolabel_form_field and not_a_form_field. "
            "Changed City verbose_name for city “%s”." % city,
        )