+ @Test
+ public void testGetEventPayload() {
+ // in neither property nor event
+ assertNull(operation.getEventPayload());
+
+ // only in event
+ event.setPayload("valueA2");
+ assertEquals("valueA2", operation.getEventPayload());
+
+ // both - should choose the property
+ operation.setProperty(OperationProperties.EVENT_PAYLOAD, "valueB");
+ assertEquals("valueB", operation.getEventPayload());
+
+ // both - should choose the property, even if it's null
+ operation.setProperty(OperationProperties.EVENT_PAYLOAD, null);
+ assertNull(operation.getEventPayload());
+ }
+