final ActionUpdateNode action = new ActionUpdateNodeImpl( type );
action.setModify( true );
action.getFieldValues().add( new ActionFieldValueImpl( "age",
new IntegerValue( 25 ) ) );
type.addChild( action );
final String drl = GuidedDecisionTreeDRLPersistence.getInstance().marshal( model );
assertEqualsIgnoreWhitespace( expected,
drl );
}