fix tests

Author: PetrDlouhy

example/project/settings.py

@@ -93,6 +93,12 @@
     "IMPORT_EXPORT_CELERY_STORAGE": {
         "BACKEND": "django.core.files.storage.FileSystemStorage",
     },
+    "staticfiles": {
+        "BACKEND": "django.core.files.storage.FileSystemStorage",
+    },
+    "default": {
+        "BACKEND": "django.core.files.storage.FileSystemStorage",
+    }
 }
 
 # Password validation