add tests for event reference

logprep/abc/processor.py

@@ -145,7 +145,7 @@ def __init__(self, name: str, configuration: "Processor.Config"):
             specific_rules_targets=self._config.specific_rules,
         )
         self.has_custom_tests = False
-        self.result = ProcessorResult(processor_name=self.name)
+        self.result = None
 
     @property
     def _specific_rules(self):
@@ -187,15 +187,20 @@ def metric_labels(self) -> dict:
             "name": self.name,
         }
 
-    def process(self, event: dict):
-        """Process a log event by calling the implemented `process` method of the
-        strategy object set in  `_strategy` attribute.
+    def process(self, event: dict) -> ProcessorResult:
+        """Process a log event.
 
         Parameters
         ----------
         event : dict
            A dictionary representing a log event.
 
+        Returns
+        -------
+        ProcessorResult
+            A ProcessorResult object containing the processed event, errors,
+            extra data and a list of target outputs.
+
         """
         self.result = ProcessorResult(processor_name=self.name, event=event)
         logger.debug(f"{self.describe()} processing event {event}")

tests/unit/processor/base.py

@@ -329,3 +329,7 @@ def test_process_collects_errors_in_result_object(self):
         ):
             result = self.object.process(self.match_all_event)
         assert len(result.errors) > 0, "minimum one error should be in result object"
+
+    def test_result_object_has_reference_to_event(self):
+        result = self.object.process(self.match_all_event)
+        assert result.event is self.match_all_event