Fix failing operation test

(writing log to disk)

tests/objects/test_operation.py

@@ -17,6 +17,7 @@
 from app.objects.secondclass.c_result import Result
 from app.objects.secondclass.c_fact import Fact
 from app.utility.base_object import BaseObject
+from app.utility.base_world import BaseWorld
 
 LINK1_DECIDE_TIME = MOCK_LINK_FINISH_TIME = '2021-01-01T08:00:00Z'
 LINK1_COLLECT_TIME = '2021-01-01T08:01:00Z'
@@ -74,6 +75,12 @@ def _encode_command(command_str):
     return _encode_command
 
 
+@pytest.fixture
+def setup_op_config():
+    BaseWorld.apply_config(name='main', config={'exfil_dir': '/tmp/caldera',
+                                                'reports_dir': '/tmp'})
+
+
 @pytest.fixture
 def op_for_event_logs(operation_agent, operation_adversary, executor, ability, operation_link, encoded_command,
                       parse_datestring):
@@ -263,6 +270,9 @@ def test_event_logs(self, event_loop, op_for_event_logs, operation_agent, file_s
         event_logs = event_loop.run_until_complete(op_for_event_logs.event_logs(file_svc, data_svc))
         assert event_logs == want
 
+    @pytest.mark.usefixtures(
+        "setup_op_config"
+    )
     def test_writing_event_logs_to_disk(self, event_loop, op_for_event_logs, operation_agent, file_svc, data_svc,
                                         event_log_op_start_time, op_agent_creation_time, fire_event_mock):
         event_loop.run_until_complete(data_svc.remove('agents', match=dict(unique=operation_agent.unique)))