ceph/src/boost/libs/program_options/test/required_test.cpp

   1 // Copyright Sascha Ochsenknecht 2009.
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // (See accompanying file LICENSE_1_0.txt
   4 // or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #include <boost/program_options.hpp>
   7 using namespace boost::program_options;
   8
   9 #include <string>
  10 #include <iostream>
  11 #include <fstream>
  12 using namespace std;
  13
  14 #include "minitest.hpp"
  15
  16
  17 void required_throw_test()
  18 {
  19    options_description          opts;
  20    opts.add_options()
  21      ("cfgfile,c", value<string>()->required(), "the configfile")
  22      ("fritz,f",   value<string>()->required(), "the output file")
  23    ;
  24
  25    variables_map vm;
  26    bool throwed = false;
  27    {
  28       // This test must throw exception
  29       string cmdline = "prg -f file.txt";
  30       vector< string > tokens =  split_unix(cmdline);
  31       throwed = false;
  32       try {
  33          store(command_line_parser(tokens).options(opts).run(), vm);
  34          notify(vm);
  35       }
  36       catch (required_option& e) {
  37          BOOST_CHECK_EQUAL(e.what(), string("the option '--cfgfile' is required but missing"));
  38          throwed = true;
  39       }
  40       BOOST_CHECK(throwed);
  41    }
  42
  43    {
  44       // This test mustn't throw exception
  45       string cmdline = "prg -c config.txt";
  46       vector< string > tokens =  split_unix(cmdline);
  47       throwed = false;
  48       try {
  49          store(command_line_parser(tokens).options(opts).run(), vm);
  50          notify(vm);
  51       }
  52       catch (required_option& e) {
  53          throwed = true;
  54       }
  55       BOOST_CHECK(!throwed);
  56    }
  57 }
  58
  59
  60
  61 void simple_required_test(const char* config_file)
  62 {
  63    options_description          opts;
  64    opts.add_options()
  65      ("cfgfile,c", value<string>()->required(), "the configfile")
  66      ("fritz,f",   value<string>()->required(), "the output file")
  67    ;
  68
  69    variables_map vm;
  70    bool throwed = false;
  71    {
  72       // This test must throw exception
  73       string cmdline = "prg -f file.txt";
  74       vector< string > tokens =  split_unix(cmdline);
  75       throwed = false;
  76       try {
  77          // options coming from different sources
  78          store(command_line_parser(tokens).options(opts).run(), vm);
  79          store(parse_config_file<char>(config_file, opts), vm);
  80          notify(vm);
  81       }
  82       catch (required_option& e) {
  83          throwed = true;
  84       }
  85       BOOST_CHECK(!throwed);
  86    }
  87 }
  88
  89
  90
  91 int main(int /*argc*/, char* av[])
  92 {
  93    required_throw_test();
  94    simple_required_test(av[1]);
  95
  96    return 0;
  97 }
  98