#20349: Don't load test suite when not testing
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     Reporter:  CollinAnderson        |                    Owner:  nobody
         Type:  Cleanup/optimization  |                   Status:  new
    Component:  Testing framework     |                  Version:  1.5
     Severity:  Normal                |               Resolution:
     Keywords:                        |             Triage Stage:  Accepted
    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 carljm):

 This pull request clearly can't work as written, since `HASHERS` and
 `PREFERRED_HASHER` don't exist in `django.test.signals`, so they can't be
 `global`ed there.

 We need to decide if `settings_changed` is meant to be a generally-
 supported framework feature, or a test-only feature. If the former, then
 it should be moved out of `django.test.signals`. If the latter, then
 fixing this bug is complicated; we'd need a hook in the test runner to
 allow apps to contribute stuff (like `settings_changed` signal
 registrations) to `setup_test_environment`. Or an `UNDER_TEST` setting, so
 that code like this can make the import and signal registration
 conditional on `UNDER_TEST`. Or just live with the fact that `django.test`
 is imported in production.

-- 
Ticket URL: <https://code.djangoproject.com/ticket/20349#comment:4>
Django <https://code.djangoproject.com/>
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