#36946: Running tests on SQLite with --parallel (using spawn) does not respect
DATABASES["TEST"]["NAME"]
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Reporter: Sage Abdullah | Owner: (none)
Type: Bug | Status: new
Component: Testing framework | Version: dev
Severity: Normal | Resolution:
Keywords: tests, sqlite, | Triage Stage: Accepted
parallel |
Has patch: 1 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Sage Abdullah):
Replying to [comment:1 Jacob Walls]:
> Thanks Sage, I suspected this was not handled but hadn't yet verified.
Would you like to submit a PR?
Yep, I'll submit a PR soon. Just trying to find the most appropriate way
to test it.
> Related: I've noticed we have the same `OperationalError` when a
parallel test worker dies. In that case, the worker_id increments past the
number of databases, and a connection is requested for a nonexistent
database. At a glance, it looks like your suggested patch fixes that as
well.
Awesome!
Replying to [comment:2 Sriniketh99]:
> Hi!
> I'm interested in working on this ticket.
> I'm still learning about Django internals, but I'd like to begin by
trying to reproduce this problem myself and see how the test runner is
setting up the SQLite databases with the --parallel option.
> My approach would be to try to understand how the test database names
are being determined and passed down to the worker processes, and then
attempt to solve the problem.
> I'll post back here as I make progress and may have questions if I get
stuck.
Sorry, I should've assigned the ticket to myself. I already made the
patch, so I just need to submit the PR. I'd recommend looking for a
different ticket to work on.
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Ticket URL: <https://code.djangoproject.com/ticket/36946#comment:3>
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