Add nested collection management

core/tests.py

@@ -337,10 +337,22 @@ class CollectionTests(TestCase):
         CollectionSection.objects.create(collection=collection, item=note, position=0)
         manage_url = reverse('collection_manage', args=[collection.id])
         response = self.client.get(manage_url)
+        self.assertContains(response, 'id="collection-manage"')
+        self.assertContains(response, 'hx-boost="true"')
+        self.assertContains(response, 'hx-swap="outerHTML show:none"')
         self.assertContains(response, f'{reverse("item_editor", args=[note.id])}?next={manage_url}')
         self.assertContains(response, '>Section</')
         self.assertNotContains(response, '>## Section</')
 
+    def test_collection_manage_preserves_search_when_adding_note(self):
+        collection = Collection.objects.create(owner=self.user, title='Reading view')
+        note = Item.objects.create(owner=self.user, kind=Item.Kind.NOTE, content='Findable note')
+        manage_url = reverse('collection_manage', args=[collection.id])
+
+        response = self.client.post(f'{manage_url}?q=Findable', {'action': 'add', 'item_id': note.id})
+
+        self.assertRedirects(response, f'{manage_url}?q=Findable')
+
     def test_collection_can_include_collection(self):
         parent = Collection.objects.create(owner=self.user, title='Parent')
         child = Collection.objects.create(owner=self.user, title='Child')