Selenium tests in Django's own test suite should be off by default, flag to enable

[Carl Meyer]

The Django test suite includes a number of Selenium tests, mostly for testing the admin.

Currently these tests are automatically run if Selenium is installed, and not otherwise.

This is irritating, because I often don't want to run those tests (because they are very slow, and more prone to spurious breakage), but sometimes I do. Currently this means I have to repeatedly "pip install selenium" / "pip uninstall selenium", or else duplicate every Django-development virtualenv (of which I have seven, for Python 2.4/2.5/2.6/2.7/3.2/3.3) for a with-selenium and without-selenium version.

Instead, I think there should be a test-runner flag or an environment variable to explicitly disable running the Selenium tests even when Selenium is installed. (Or maybe have the default be not run them, and provide the flag to run them; I have no strong opinion on that.)

[Zbigniew Siciarz]

Relevant pull request: ​https://github.com/django/django/pull/781

[Honza Král <Honza.Kral@…>]

In a05ab448f7a738d30ee7e8a513a65b6a67e8ea8e:

Merge pull request #781 from zsiciarz/ticket_19854

Fixed #19854 -- Added test runner option to skip Selenium tests

[Carl Meyer]

Julien, Anssi and I had discussed this on IRC and agreed that the Selenium tests should be off by default and require a flag to enable, but we failed to record that conclusion here. Re-opening until we make that change.

[Carl Meyer <carl@…>]

In 906dc8522a1745e0e12c8061e4170540f7d0f486:

Fixed #19854 -- Turn Django's own Selenium tests off by default.