Ten classes ran on TestCase or TransactionTestCase although they read
files, templates or scripts only. SimpleTestCase skips the transaction
and refuses a database query, so a test that starts to use the database
says so. LoggingConfigTestCase also removes the temporary directory it
makes.
Request jobs (an upload's chunks) run in gunicorn: their kind is admitted
running with the request as its worker, never claimed or recovered by the
worker, cancelled in the request, and asked by every housekeeping pass to
end its jobs that went idle. The panel can follow a job the page just
started. A job a request runs does not wait for the worker, so it does not
raise the worker-unavailable warning on the Jobs page or in the panel.
