conformance_test/positive_tests/22_communication_operations/2202_message_based_communication/220202_receive_operation/Sem_220202_ReceiveOperation_026.ttcn

   1 /******************************************************************************
   2  * Copyright (c) 2000-2016 Ericsson Telecom AB
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *   Adrien Kirjak – initial implementation
  10  *
  11  ** @version  0.0.1
  12  ** @purpose  1:22.2.2, lazy variable in index redirect
  13  ** @verdict  pass accept, ttcn3verdict:pass
  14  *****************************************************************/
  15
  16 // The following requirements are tested:
  17 // If a variable referenced in the value, sender or @index clause is a lazy or fuzzy
  18 // variable, the expression assigned to this variable is equal to the result produced
  19 // by the receive operation i.e. later evaluation of the lazy or fuzzy variable does not
  20 // lead to repeated invocation of the receive operation.
  21
  22 module Sem_220202_ReceiveOperation_026 {
  23         type port P message {
  24                 inout integer;
  25         } with {extension "internal"}
  26
  27     type component GeneralComp {
  28                 port P p[2];
  29         }
  30
  31     testcase TC_Sem_220202_ReceiveOperation_026() runs on GeneralComp {
  32         var @lazy integer v_int;
  33
  34                 connect(self:p[1], self:p[1]);
  35
  36         p[1].send(1);
  37         p[1].send(2);
  38         p[1].send(3);
  39
  40         any from p.receive(integer:?) -> @index v_int;
  41
  42         if (v_int == 1) { // evaluation of @lazy (receive shall not be called again)
  43             alt {
  44                 [] p[1].receive(integer:2) { setverdict(pass); }
  45                 [] any from p.receive { setverdict(fail); }
  46             }
  47         } else {
  48             setverdict(fail);
  49         }
  50     }
  51
  52     control {
  53         execute(TC_Sem_220202_ReceiveOperation_026(), 5.0);
  54     }
  55 }