conformance_test/positive_tests/16_functions_altsteps_testcases/1601_functions/160102_predefined_functions/Sem_160102_predefined_functions_018.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  1:16.1.2, Ensure that predefined decvalue function performs decoding if there are more bits than needed
  13  ** @verdict  pass accept, ttcn3verdict:pass
  14  ***************************************************/
  15
  16 // The following requirements are tested:
  17 // (C.5.2)
  18 // The decvalue function decodes a bitstring into a value. The test system shall suppose that
  19 // the bitstring encoded_value represents an encoded instance of the actual type of decoded_value.
  20 // If the decoding was successful, then the used bits are removed from the parameter encoded_value,
  21 // the rest is returned (in the parameter encoded_value), and the decoded value is returned
  22 // in the parameter decoded_value. The function shall return an integer value to indicate success
  23 // or failure of the decoding below:
  24 // â\80¢ The return value 0 indicates that decoding was successful.
  25
  26 module Sem_160102_predefined_functions_018 {
  27     type integer I with { variant "32 bit"};
  28
  29     type component GeneralComp {
  30     }
  31
  32     testcase TC_Sem_160102_predefined_functions_018 () runs on GeneralComp {
  33                 const bitstring c_suffix := '11111111'B;
  34         var bitstring v_test := int2bit(0, 32) & c_suffix; // 8 excess bits
  35                 var I v_decoded;
  36                 var integer v_res := decvalue(v_test, v_decoded);
  37                 // expected result:
  38                 // v_res: 0 (success)
  39                 // v_decoded: 0
  40                 // v_test: '11111111'B (8 excess bits shall be returned)
  41                 if (match(v_res, 0) and match(v_decoded, 0) and match(v_test, c_suffix)) {
  42                         setverdict(pass);
  43                 } else {
  44                         setverdict(fail, "Unexpected decoding result");
  45                 }
  46     }
  47
  48     control{
  49         execute(TC_Sem_160102_predefined_functions_018());
  50     }
  51 }