feat: Add permissions to subscriptions to only exposed user's

djangoldp_notification/tests/conftest.py

+from importlib import import_module
+from os import environ
+
+from pytest import fail
+
+settings_module = environ.get("DJANGO_SETTINGS_MODULE")
+if settings_module is None or len(settings_module) == 0:
+    fail("DJANGO_SETTINGS_MODULE needs to be defined and point to your SIB app installation settings")
+
+try:
+    import_module(settings_module)
+except ImportError:
+    initial_module = [token for token in settings_module.split(".") if len(token) > 0][0]
+    fail("Unable to import {}. Try to configure PYTHONPATH to point the "
+         "directory containing the {} module".format(settings_module, initial_module))