#35183: tests - add a new argument "--test-only"
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Reporter: אורי | Owner: nobody
Type: New feature | Status: new
Component: Testing framework | Version:
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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tests - add a new argument "--test-only" (int, >=0) and If run with this
argument, run only this number of tests.
Sometimes there are thousands of tests, for example 6,000 tests, and I
want to run only a random subset of them, for example 200 tests. It should
be possible with Django.
The code needed to implement such a feature is:
In command test:
{{{
parser.add_argument(
"--test-only",
action="store",
help="If run with this argument, run only this number of
tests.",
type=int,
)
}}}
In DiscoverRunner::__init__:
{{{
self.test_only = kwargs.get('test_only', None)
if (self.test_only is not None):
assert (self.test_only >= 0)
}}}
In DiscoverRunner::test_suite:
{{{
def test_suite(self, tests=()):
if (self.test_only is not None):
tests = tests[:self.test_only]
return super().test_suite(tests=tests)
}}}
Usage:
{{{
python manage.py test --shuffle --test-only 200
}}}
(It makes more sense to use it with `--shuffle`, but you can also use it
without it).
And that's all. :-)
--
Ticket URL: <https://code.djangoproject.com/ticket/35183>
Django <https://code.djangoproject.com/>
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