Fix Wagtail article publish regressions

apps/blog/tests/test_admin_experience.py

@@ -2,6 +2,9 @@ from datetime import timedelta
 from types import SimpleNamespace
 
 import pytest
+from django.contrib import messages
+from django.contrib.messages.storage.fallback import FallbackStorage
+from django.contrib.sessions.middleware import SessionMiddleware
 from django.test import override_settings
 from django.utils import timezone
 
@@ -295,7 +298,7 @@ def test_article_admin_form_relaxes_initial_required_fields(article_index, djang
 
 @pytest.mark.django_db
 def test_article_admin_form_clean_applies_defaults(article_index, django_user_model, monkeypatch):
-    """Form clean should auto-fill slug/author/category/summary when omitted."""
+    """Form clean should populate defaults before parent validation runs."""
     user = django_user_model.objects.create_user(
         username="writer",
         email="writer@example.com",
@@ -310,16 +313,18 @@ def test_article_admin_form_clean_applies_defaults(article_index, django_user_mo
         SimpleNamespace(block_type="code", value=SimpleNamespace(raw_code="print('ignore')")),
         SimpleNamespace(block_type="rich_text", value=SimpleNamespace(source="<p>Hello world body text.</p>")),
     ]
+    form.cleaned_data = {
+        "title": "Auto Defaults Title",
+        "slug": "",
+        "author": None,
+        "category": None,
+        "summary": "",
+        "body": body,
+    }
+    observed = {}
 
     def fake_super_clean(_self):
-        _self.cleaned_data = {
-            "title": "Auto Defaults Title",
-            "slug": "",
-            "author": None,
-            "category": None,
-            "summary": "",
-            "body": body,
-        }
+        observed["slug_before_parent_clean"] = _self.cleaned_data.get("slug")
         return _self.cleaned_data
 
     mro = form.__class__.__mro__
@@ -327,6 +332,7 @@ def test_article_admin_form_clean_applies_defaults(article_index, django_user_mo
     monkeypatch.setattr(super_form_class, "clean", fake_super_clean)
     cleaned = form.clean()
 
+    assert observed["slug_before_parent_clean"] == "auto-defaults-title"
     assert cleaned["slug"] == "auto-defaults-title"
     assert cleaned["author"] is not None
     assert cleaned["author"].user_id == user.id
@@ -378,3 +384,20 @@ def test_article_save_autogenerates_summary_when_missing(article_index):
     article.save()
 
     assert article.summary == "This should become the summary text."
+
+
+@pytest.mark.django_db
+def test_article_page_omits_admin_messages_on_frontend(article_page, rf):
+    """Frontend templates should not render admin session messages."""
+    request = rf.get(article_page.url)
+    SessionMiddleware(lambda req: None).process_request(request)
+    request.session.save()
+    setattr(request, "_messages", FallbackStorage(request))
+    messages.success(request, "Page 'Test' has been published.")
+
+    response = article_page.serve(request)
+    response.render()
+    content = response.content.decode()
+
+    assert "Page 'Test' has been published." not in content
+    assert 'aria-label="Messages"' not in content