-class TestsWithDB(TestCaseWithDB):
- """Tests requiring DB, but not server setup."""
+class TestsWithDB(TestCaseWithDB, TestCaseSansDB):
+ """Tests requiring DB, but not server setup.
+
+ NB: We subclass TestCaseSansDB too, to pull in its .test_id_validation,
+ which for Todo wouldn't run without a DB being set up due to the need for
+ Processes with set IDs.
+ """