text: /******************************************************************************
   *                       ____    _    _____                                   *
   *                      / ___|  / \  |  ___|    C++                           *
   *                     | |     / _ \ | |_       Actor                         *
   *                     | |___ / ___ \|  _|      Framework                     *
   *                      \____/_/   \_|_|                                      *
   *                                                                            *
   * Copyright 2011-2018 Dominik Charousset                                     *
   *                                                                            *
   * Distributed under the terms and conditions of the BSD 3-Clause License or  *
   * (at your option) under the terms and conditions of the Boost Software      *
   * License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE.       *
   *                                                                            *
   * If you did not receive a copy of the license files, see                    *
   * http://opensource.org/licenses/BSD-3-Clause and                            *
   * http://www.boost.org/LICENSE_1_0.txt.                                      *
   ******************************************************************************/
  
  #define CAF_SUITE detached_actors
  
  #include "caf/all.hpp"
  
  #include "core-test.hpp"
  
  using namespace caf;
  
  using std::endl;
  
  namespace {
  
  struct fixture {
    actor_system_config cfg;
    actor_system sys;
    scoped_actor self;
  
    fixture() : sys(cfg), self(sys, true) {
      // nop
    }
  };
  
  } // namespace
  
  CAF_TEST_FIXTURE_SCOPE(detached_actors, fixture)
  
  CAF_TEST(shutdown) {
    CAF_MESSAGE("does sys shut down after spawning a detached actor?");
    sys.spawn<detached>([] {});
  }
  
  CAF_TEST(shutdown_with_delayed_send) {
    CAF_MESSAGE("does sys shut down after spawning a detached actor that used "
                "delayed_send?");
    auto f = [](event_based_actor* self) -> behavior {
      self->delayed_send(self, std::chrono::nanoseconds(1), ok_atom_v);
      return {
        [=](ok_atom) { self->quit(); },
      };
    };
    sys.spawn<detached>(f);
  }
  
  CAF_TEST(shutdown_with_unhandled_delayed_send) {
    CAF_MESSAGE("does sys shut down after spawning a detached actor that used "
                "delayed_send but didn't bother waiting for it?");
    auto f = [](event_based_actor* self) {
      self->delayed_send(self, std::chrono::nanoseconds(1), ok_atom_v);
    };
    sys.spawn<detached>(f);
  }
  
  CAF_TEST(shutdown_with_after) {
    CAF_MESSAGE("does sys shut down after spawning a detached actor that used "
                "after()?");
    auto f = [](event_based_actor* self) -> behavior {
      return {
        after(std::chrono::nanoseconds(1)) >> [=] { self->quit(); },
      };
    };
    sys.spawn<detached>(f);
  }
  
  CAF_TEST(shutdown_delayed_send_loop) {
    CAF_MESSAGE("does sys shut down after spawning a detached actor that used "
                "a delayed send loop and was interrupted via exit message?");
    auto f = [](event_based_actor* self) -> behavior {
      self->delayed_send(self, std::chrono::milliseconds(1), ok_atom_v);
      return {
        [=](ok_atom) {
          self->delayed_send(self, std::chrono::milliseconds(1), ok_atom_v);
        },
      };
    };
    auto a = sys.spawn<detached>(f);
    auto g = detail::make_scope_guard(
      [&] { self->send_exit(a, exit_reason::user_shutdown); });
  }
  
  CAF_TEST_FIXTURE_SCOPE_END()
  