/******************************************************************************
 * Copyright (c) 2000-2016 Ericsson Telecom AB
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Adrien Kirjak – initial implementation
 *
 ** @version  0.0.1
 ** @purpose  1:22.2.3, lazy variable in sender 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_024 {
    type integer address;
    
	type port P message {
		inout integer;
	} with {extension "internal"}
	
    type component GeneralComp {
		port P p;
	}
	    
    testcase TC_Sem_220203_TriggerOperation_024() runs on GeneralComp {
        var @lazy address v_addr;

		connect(self:p, self:p);
        p.send(1) to 1;
        p.send(2) to 2;
        p.send(3) to 3;
        p.trigger(integer:?) -> sender v_addr;

        if (v_addr == 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_024(), 5.0);
    }
}