/fixtures/magic_parameters demo, refs #842

tests/fixtures.py

@@ -461,6 +461,7 @@ METADATA = {
             "queries": {
                 "𝐜𝐢𝐭𝐢𝐞𝐬": "select id, name from facet_cities order by id limit 1;",
                 "pragma_cache_size": "PRAGMA cache_size;",
+                "magic_parameters": "select :_header_user_agent as user_agent, :_date_datetime_utc as datetime",
                 "neighborhood_search": {
                     "sql": textwrap.dedent(
                         """

tests/test_html.py

@@ -99,6 +99,7 @@ def test_database_page(app_client):
         ("/fixtures/from_hook", "from_hook"),
         ("/fixtures/neighborhood_search#fragment-goes-here", "Search neighborhoods"),
         ("/fixtures/pragma_cache_size", "pragma_cache_size"),
+        ("/fixtures/magic_parameters", "magic_parameters"),
     ] == sorted(
         [(a["href"], a.text) for a in queries_ul.find_all("a")], key=lambda p: p[0]
     )