Simon Charette 6b7bd079a6 [3.0.x] Fixed #30796 -- Prevented select_related() from mutating a queryset on chaining.
Thanks Darren Maki for the report.

Backport of 37f8f293775d0b672da8ae369d9a4e17f1db7851 from master
2019-09-24 09:47:21 +02:00
..
2017-06-01 13:23:48 -04:00

To run the test suite, first, create and activate a virtual environment. Then install some requirements and run the tests:

$ cd tests
$ python -m pip install -e ..
$ python -m pip install -r requirements/py3.txt
$ ./runtests.py

For more information about the test suite, see https://docs.djangoproject.com/en/dev/internals/contributing/writing-code/unit-tests/.