// given:
CallableElementBinding caseBinding = CallableElementBinding.LATEST;
caseTask.setCamundaCaseBinding(caseBinding.getValue());
// when
CmmnActivity activity = handler.handleElement(planItem, context);
// then
CaseTaskActivityBehavior behavior = (CaseTaskActivityBehavior) activity.getActivityBehavior();
CallableElement callableElement = behavior.getCallableElement();
CallableElementBinding binding = callableElement.getBinding();
assertNotNull(binding);
assertEquals(caseBinding, binding);