test/test_exceptions.cpp

   1 // Copyright (c) 2004 Daniel Wallin
   2
   3 // Permission is hereby granted, free of charge, to any person obtaining a
   4 // copy of this software and associated documentation files (the "Software"),
   5 // to deal in the Software without restriction, including without limitation
   6 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
   7 // and/or sell copies of the Software, and to permit persons to whom the
   8 // Software is furnished to do so, subject to the following conditions:
   9
  10 // The above copyright notice and this permission notice shall be included
  11 // in all copies or substantial portions of the Software.
  12
  13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
  14 // ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
  15 // TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
  16 // PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
  17 // SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
  18 // ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  19 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
  21 // OR OTHER DEALINGS IN THE SOFTWARE.
  22
  23 #include "test.hpp"
  24 #include <luabind/luabind.hpp>
  25
  26 namespace {
  27
  28 struct ex : public std::exception
  29 {
  30     ex(const char* m): msg(m) {}
  31     virtual const char* what() const throw() { return msg; }
  32     const char* msg;
  33 };
  34
  35 struct exception_thrower
  36 {
  37     exception_thrower() {}
  38     exception_thrower(int) { throw ex("exception description"); }
  39     exception_thrower(int, int) { throw "a string exception"; }
  40     exception_thrower(int, int, int) { throw 10; }
  41     int f() { throw ex("exception from a member function"); }
  42     int g() { throw "a string exception"; }
  43     int h() { throw 10; }
  44 };
  45
  46 } // namespace unnamed
  47
  48 void test_exceptions()
  49 {
  50     lua_state L;
  51
  52     using namespace luabind;
  53
  54     module(L)
  55     [
  56         class_<exception_thrower>("throw")
  57             .def(constructor<>())
  58             .def(constructor<int>())
  59             .def(constructor<int, int>())
  60             .def(constructor<int, int, int>())
  61             .def("f", &exception_thrower::f)
  62             .def("g", &exception_thrower::g)
  63             .def("h", &exception_thrower::h)
  64     ];
  65
  66     DOSTRING_EXPECTED(L, "a = throw(1)", "exception description");
  67     DOSTRING_EXPECTED(L, "a = throw(1,1)", "a string exception");
  68     DOSTRING_EXPECTED(L, "a = throw(1,1,1)", "throw() threw an exception");
  69     DOSTRING(L, "a = throw()");
  70     DOSTRING_EXPECTED(L, "a:f()", "exception from a member function");
  71     DOSTRING_EXPECTED(L, "a:g()", "a string exception");
  72
  73     DOSTRING_EXPECTED(L, "a:h()", "throw:h() threw an exception");
  74     DOSTRING_EXPECTED(L,
  75         "obj = throw('incorrect', 'parameters', 'constructor')",
  76         "no constructor of 'throw' matched the arguments "
  77         "(string, string, string)\n candidates are:\n"
  78         "throw()\nthrow(number)\nthrow(number, number)\n"
  79         "throw(number, number, number)\n");
  80 }
  81