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import django
from django.conf import settings
from django.test.utils import override_settings
from daphne.checks import check_daphne_installed
def test_check_daphne_installed():
"""
Test check error is raised if daphne is not listed before staticfiles, and vice versa.
"""
settings.configure(
INSTALLED_APPS=["daphne.apps.DaphneConfig", "django.contrib.staticfiles"]
)
django.setup()
errors = check_daphne_installed(None)
assert len(errors) == 0
with override_settings(INSTALLED_APPS=["django.contrib.staticfiles", "daphne"]):
errors = check_daphne_installed(None)
assert len(errors) == 1
assert errors[0].id == "daphne.E001"
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