How to suppress the `RemovedInDjango40Warning` warnings in a unit test?

Question

We are working on a unit test in PyCharm and the test itself is passing now. However, the terminal output contains warning messages in the RemovedInDjango40Warning category. As we do not plan to upgrade to Django 4.0 for now, these warnings are verbose and distracting.

We tried including the statement warnings.simplefilter("ignore", category=RemovedInDjango40Warning) but it did not suppress the warnings.

So, we wonder how to suppress the RemovedInDjango40Warning warnings.

Technical Details:

Partial source code of the unit test:

from unittest import TestCase

import Django


class TestPocFunctional(TestCase):
    @classmethod
    def setUpClass(cls):
        django.setup()
        return

    def test_all(self):
        from application.poc import PocFunctional
        import warnings
        from django.utils.deprecation import RemovedInDjango40Warning
        warnings.simplefilter("ignore", category=RemovedInDjango40Warning)
        
        # ... testing steps
        
        return

The terminal output of warnings:

/data/app-py3/venv3.7/bin/python /var/lib/snapd/snap/pycharm-professional/316/plugins/python/helpers/pycharm/_jb_unittest_runner.py --target test_poc.TestPocFunctional 
Testing started at 1:54 PM ...
Launching unittests with arguments python -m unittest test_poc.TestPocFunctional in /data/app-py3/APPLICATION/tests

/data/app-py3/APPLICATION/eav/models.py:84: RemovedInDjango40Warning: django.utils.translation.ugettext_lazy() is deprecated in favor of django.utils.translation.gettext_lazy().
  value = models.CharField(_(u"value"), db_index=True,
/data/app-py3/APPLICATION/eav/models.py:100: RemovedInDjango40Warning: django.utils.translation.ugettext_lazy() is deprecated in favor of django.utils.translation.gettext_lazy().
  name = models.CharField(_(u"name"), unique=True, max_length=100)
/data/app-py3/APPLICATION/eav/models.py:102: RemovedInDjango40Warning: django.utils.translation.ugettext_lazy() is deprecated in favor of django.utils.translation.gettext_lazy().
  enums = models.ManyToManyField(EnumValue, verbose_name=_(u"enum group"))
/data/app-py3/APPLICATION/eav/models.py:173: RemovedInDjango40Warning: django.utils.translation.ugettext_lazy() is deprecated in favor of django.utils.translation.gettext_lazy().
  (TYPE_TEXT, _(u"Text")),
/data/app-py3/APPLICATION/eav/models.py:174: RemovedInDjango40Warning: django.utils.translation.ugettext_lazy() is deprecated in favor of django.utils.translation.gettext_lazy().
  (TYPE_FLOAT, _(u"Float")),
/data/app-py3/APPLICATION/eav/models.py:175: RemovedInDjango40Warning: django.utils.translation.ugettext_lazy() is deprecated in favor of django.utils.translation.gettext_lazy().
  (TYPE_INT, _(u"Integer")),
/data/app-py3/APPLICATION/eav/models.py:176: RemovedInDjango40Warning: django.utils.translation.ugettext_lazy() is deprecated in favor of django.utils.translation.gettext_lazy().
  (TYPE_DATE, _(u"Date and Time")),
/data/app-py3/APPLICATION/eav/models.py:177: RemovedInDjango40Warning: django.utils.translation.ugettext_lazy() is deprecated in favor of django.utils.translation.gettext_lazy().
  (TYPE_BASICDATE, _(u"Date")),
/data/app-py3/APPLICATION/eav/models.py:178: RemovedInDjango40Warning: django.utils.translation.ugettext_lazy() is deprecated in favor of django.utils.translation.gettext_lazy().
  (TYPE_BOOLEAN, _(u"True / False")),
/data/app-py3/APPLICATION/eav/models.py:179: RemovedInDjango40Warning: django.utils.translation.ugettext_lazy() is deprecated in favor of django.utils.translation.gettext_lazy().
  (TYPE_OBJECT, _(u"Django Object")),
/data/app-py3/APPLICATION/eav/models.py:180: RemovedInDjango40Warning: django.utils.translation.ugettext_lazy() is deprecated in favor of django.utils.translation.gettext_lazy().
  (TYPE_ENUM, _(u"Multiple Choice")),

... more warnings in the same category ...

score 0 · Answer 1 · answered May 30 '23 at 23:12

Following the hint of this post, we can call the imports at the beginning of the file.

So, our solution looks like the sample below:

from unittest import TestCase

import os
import Django
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "application.settings")
django.setup()
from application.poc import PocFunctional


# To suppress the `RemovedInDjango40Warning` warnings in the unit test output
import warnings
from django.utils.deprecation import RemovedInDjango40Warning
warnings.simplefilter("ignore", category=RemovedInDjango40Warning)


class TestPocFunctional(TestCase):
    @classmethod
    def setUpClass(cls):
        django.setup()
        return

    def test_all(self):
        # Deprecated:
        # 
        # from application.poc import PocFunctional
        # import warnings
        # from django.utils.deprecation import RemovedInDjango40Warning
        # warnings.simplefilter("ignore", category=RemovedInDjango40Warning)
        
        # ... testing steps
        
        return

How to suppress the `RemovedInDjango40Warning` warnings in a unit test?

Technical Details:

Partial source code of the unit test:

The terminal output of warnings:

1 Answers1