// when
CmmnActivity activity = handler.handleElement(planItem, context);
// then
HumanTaskActivityBehavior behavior = (HumanTaskActivityBehavior) activity.getActivityBehavior();
TaskDefinition taskDefinition = behavior.getTaskDefinition();
Set<Expression> candidateGroupExpressions = taskDefinition.getCandidateGroupIdExpressions();
assertEquals(3, candidateGroupExpressions.size());
for (Expression candidateGroupExpression : candidateGroupExpressions) {
String candidateGroup = candidateGroupExpression.getExpressionText();
if ("accounting".equals(candidateGroup)) {