#28478: Make DiscoverRunner skip creating a test database if not needed
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Reporter: Tim Graham | Owner: nobody
Type: Cleanup/optimization | Status: new
Component: Testing framework | Version: master
Severity: Normal | Resolution:
Keywords: | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Simon Charette):
I wonder if we could unify `SimpleTestCase.allow_database_queries`,
`TransactionTestCase.mutli_db` and this feature under a single
`SimpleTestCase.databases` feature.
The `databases` attribute could be set to `None` on `SimpleTestCase` and
to `{DEFAULT_DB_ALIAS}` on `TransactionTestCase` with a deprecation shim
that turns `multi_db = True` into `set(connections)`. The discover runner
could simply create the union of all tests's `databases` and the
`allow_database_queries` functionality could be reused to block accessed
to all connection aliases not defined in the test's `databases`.
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Ticket URL: <https://code.djangoproject.com/ticket/28478#comment:3>
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