Disable migrations when running unit tests in Django 1.7

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Look at this workaround, posted by Bernie Sumption to the Django developers mailing list:

If makemigrations has not yet been run, the “migrate” command treats
an app as unmigrated, and creates tables directly from the models just
like syncdb did in 1.6. I defined a new settings module just for unit
tests called “settings_test.py”, which imports * from the main
settings module and adds this line:

MIGRATION_MODULES = {“myapp”: “myapp.migrations_not_used_in_tests”}

Then I run tests like this:

DJANGO_SETTINGS_MODULE=”myapp.settings_test” python manage.py test

This fools migrate into thinking that the app is unmigrated, and so
every time a test database is created it reflects the current
structure of models.py.

In Django 1.9, this situation is improved somewhat, and you can set the value to None:

MIGRATION_MODULES = {“myapp”: None}

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