// when
CmmnActivity activity = handler.handleElement(planItem, context);
// then
CaseTaskActivityBehavior behavior = (CaseTaskActivityBehavior) activity.getActivityBehavior();
CallableElement callableElement = behavior.getCallableElement();
List<CallableElementParameter> inputs = callableElement.getInputs();
assertNotNull(inputs);
assertFalse(inputs.isEmpty());
assertEquals(3, inputs.size());