import importlib from django import forms from s3file.apps import S3FileConfig from s3file.forms import S3FileInputMixin class TestS3FileConfig: def test_ready(self, settings): app = S3FileConfig("s3file", importlib.import_module("tests.testapp")) app.ready() assert not isinstance(forms.ClearableFileInput(), S3FileInputMixin) settings.DEFAULT_FILE_STORAGE = "storages.backends.s3boto3.S3Boto3Storage" app.ready() assert isinstance(forms.ClearableFileInput(), S3FileInputMixin)