Fixed #35686 -- Added table headers to app list tables for screen readers.

django/contrib/admin/templates/admin/app_list.html

@@ -7,6 +7,13 @@
         <caption>
           <a href="{{ app.app_url }}" class="section" title="{% blocktranslate with name=app.name %}Models in the {{ name }} application{% endblocktranslate %}">{{ app.name }}</a>
         </caption>
+        <thead class="visually-hidden">
+          <tr>
+            <th scope="col">{% translate 'Model name' %}</th>
+            <th scope="col">{% translate 'Add link' %}</th>
+            <th scope="col">{% translate 'Change or view list link' %}</th>
+          </tr>
+        </thead>
         {% for model in app.models %}
           {% with model_name=model.object_name|lower %}
             <tr class="model-{{ model_name }}{% if model.admin_url in request.path|urlencode %} current-model{% endif %}">

tests/admin_changelist/tests.py

@@ -1608,7 +1608,7 @@ class ChangeListTests(TestCase):
         response = m.changelist_view(request)
         self.assertIn('<ul class="object-tools">', response.rendered_content)
         # The "Add" button inside the object-tools shouldn't appear.
-        self.assertNotIn("Add ", response.rendered_content)
+        self.assertNotIn("Add event", response.rendered_content)
 
     def test_search_help_text(self):
         superuser = self._create_superuser("superuser")

tests/admin_views/tests.py

@@ -799,7 +799,9 @@ class AdminViewBasicTest(AdminViewBasicTestCase):
             reverse("admin:admin_views_complexsortedperson_changelist"), {}
         )
         # Should have 5 columns (including action checkbox col)
-        self.assertContains(response, '<th scope="col"', count=5)
+        result_list_table_re = re.compile('<table id="result_list">(.*?)</thead>')
+        result_list_table_head = result_list_table_re.search(str(response.content))[0]
+        self.assertEqual(result_list_table_head.count('<th scope="col"'), 5)
 
         self.assertContains(response, "Name")
         self.assertContains(response, "Colored name")
@@ -830,7 +832,11 @@ class AdminViewBasicTest(AdminViewBasicTestCase):
                 reverse("admin:admin_views_%s_changelist" % url), {}
             )
             # Should have 3 columns including action checkbox col.
-            self.assertContains(response, '<th scope="col"', count=3, msg_prefix=url)
+            result_list_table_re = re.compile('<table id="result_list">(.*?)</thead>')
+            result_list_table_head = result_list_table_re.search(str(response.content))[
+                0
+            ]
+            self.assertEqual(result_list_table_head.count('<th scope="col"'), 3)
             # Check if the correct column was selected. 2 is the index of the
             # 'order' column in the model admin's 'list_display' with 0 being
             # the implicit 'action_checkbox' and 1 being the column 'stuff'.
@@ -7498,12 +7504,26 @@ class CSSTest(TestCase):
         # General index page
         response = self.client.get(reverse("admin:index"))
         self.assertContains(response, '<div class="app-admin_views module')
+        self.assertContains(
+            response,
+            '<thead class="visually-hidden"><tr><th scope="col">Model name</th>'
+            '<th scope="col">Add link</th><th scope="col">Change or view list link</th>'
+            "</tr></thead>",
+            html=True,
+        )
         self.assertContains(response, '<tr class="model-actor">')
         self.assertContains(response, '<tr class="model-album">')
 
         # App index page
         response = self.client.get(reverse("admin:app_list", args=("admin_views",)))
         self.assertContains(response, '<div class="app-admin_views module')
+        self.assertContains(
+            response,
+            '<thead class="visually-hidden"><tr><th scope="col">Model name</th>'
+            '<th scope="col">Add link</th><th scope="col">Change or view list link</th>'
+            "</tr></thead>",
+            html=True,
+        )
         self.assertContains(response, '<tr class="model-actor">')
         self.assertContains(response, '<tr class="model-album">')