/*****************************************************************
 ** @author   STF 487
 ** @version  0.0.1
 ** @purpose  1:22.2.3, lazy variable in value redirect
 ** @verdict  pass accept, ttcn3verdict:pass
 *****************************************************************/

// The following requirements are tested:
// If a variable referenced in the value, sender or @index clause is a lazy or fuzzy
// variable, the expression assigned to this variable is equal to the result produced
// by the trigger operation i.e. later evaluation of the lazy or fuzzy variable does not
// lead to repeated invocation of the trigger operation.

module Sem_220203_TriggerOperation_023 {
	type port P message {
		inout integer;
	}

    type component GeneralComp {
		port P p;
	}

    testcase TC_Sem_220203_TriggerOperation_023() runs on GeneralComp {
        var @lazy integer v_int;
        p.send(1);
        p.send(2);
        p.send(3);
        p.trigger(integer:?) -> value v_int;
        if (v_int == 1) { // evaluation of @lazy (receive shall not be called again)
            alt {
                [] p.receive(integer:2) { setverdict(pass); }
                [] p.receive { setverdict(fail); }
            }
        } else {
            setverdict(fail);
        }
    }

    control {
        execute(TC_Sem_220203_TriggerOperation_023(), 5.0);
    }
}