test/std/thread/futures/futures.future_error/what.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // UNSUPPORTED: libcpp-has-no-threads
  11
  12 // LWG 2056 changed the values of future_errc, so if we're using new headers
  13 // with an old library we'll get incorrect messages.
  14 //
  15 // XFAIL: with_system_cxx_lib=macosx10.11
  16 // XFAIL: with_system_cxx_lib=macosx10.10
  17 // XFAIL: with_system_cxx_lib=macosx10.9
  18 // XFAIL: with_system_cxx_lib=macosx10.7
  19 // XFAIL: with_system_cxx_lib=macosx10.8
  20
  21 // <future>
  22
  23 // class future_error
  24
  25 // const char* what() const throw();
  26
  27 #include <future>
  28 #include <cstring>
  29 #include <cassert>
  30
  31 #include "test_macros.h"
  32
  33 int main()
  34 {
  35     {
  36         std::future_error f(std::make_error_code(std::future_errc::broken_promise));
  37         LIBCPP_ASSERT(std::strcmp(f.what(), "The associated promise has been destructed prior "
  38                       "to the associated state becoming ready.") == 0);
  39     }
  40     {
  41         std::future_error f(std::make_error_code(std::future_errc::future_already_retrieved));
  42         LIBCPP_ASSERT(std::strcmp(f.what(), "The future has already been retrieved from "
  43                       "the promise or packaged_task.") == 0);
  44     }
  45     {
  46         std::future_error f(std::make_error_code(std::future_errc::promise_already_satisfied));
  47         LIBCPP_ASSERT(std::strcmp(f.what(), "The state of the promise has already been set.") == 0);
  48     }
  49     {
  50         std::future_error f(std::make_error_code(std::future_errc::no_state));
  51         LIBCPP_ASSERT(std::strcmp(f.what(), "Operation not permitted on an object without "
  52                       "an associated state.") == 0);
  53     }
  54 }