guarded repository delete flow

tests/test_web_api.py

@@ -594,6 +594,23 @@ def test_ui_manual_registry_entry_loop(tmp_path):
         detail_response = client.get(repository_path)
         assert "Edited Manual API" not in detail_response.text
         assert "tests/test_manual.py" not in detail_response.text
+
+        failed_delete_response = client.post(
+            f"{repository_path}/delete",
+            data={"confirm_name": "wrong name"},
+            follow_redirects=False,
+        )
+        assert failed_delete_response.status_code == 303
+        assert client.get(repository_path).status_code == 200
+
+        delete_repository_response = client.post(
+            f"{repository_path}/delete",
+            data={"confirm_name": "Manual Repo"},
+            follow_redirects=False,
+        )
+        assert delete_repository_response.status_code == 303
+        assert delete_repository_response.headers["location"] == "/ui"
+        assert client.get(repository_path).status_code == 404
     finally:
         app.dependency_overrides.clear()