Change default value for user_configuration

arkindex_worker/worker/base.py

@@ -62,7 +62,7 @@ class BaseWorker(object):
         logger.info(f"Worker will use {self.work_dir} as working directory")
 
         self.process_information = None
-        self.user_configuration = None
+        self.user_configuration = {}
         self.support_cache = support_cache
         # use_cache will be updated in configure() if the cache is supported and if there
         # is at least one available sqlite database either given or in the parent tasks

tests/test_base_worker.py

@@ -136,7 +136,7 @@ def test_configure_dev_mode(
     assert worker.process_information is None
     assert worker.worker_version_id == "12341234-1234-1234-1234-123412341234"
     assert worker.is_read_only is True
-    assert worker.user_configuration is None
+    assert worker.user_configuration == {}
 
 
 def test_configure_worker_run(mocker, monkeypatch, responses, mock_config_api):