text: // This file is part of CAF, the C++ Actor Framework. See the file LICENSE in
  // the main distribution directory for license terms and copyright or visit
  // https://github.com/actor-framework/actor-framework/blob/master/LICENSE.
  
  #define CAF_SUITE actor_termination
  
  #include "core-test.hpp"
  
  #include "caf/all.hpp"
  
  using namespace caf;
  
  namespace {
  
  behavior mirror_impl(event_based_actor* self) {
    self->set_default_handler(reflect);
    return [] {
      // nop
    };
  }
  
  struct fixture :  test_coordinator_fixture<> {
    actor mirror;
    actor testee;
  
    fixture() {
      mirror = sys.spawn(mirror_impl);
      // run initialization code or mirror
      sched.run_once();
    }
  
    template <class... Ts>
    void spawn(Ts&&... xs) {
      testee = self->spawn(std::forward<Ts>(xs)...);
    }
  
    ~fixture() {
      self->wait_for(testee);
    }
  };
  
  } // namespace
  
  CAF_TEST_FIXTURE_SCOPE(actor_termination_tests, fixture)
  
  CAF_TEST(single_multiplexed_request) {
    auto f = [&](event_based_actor* self, actor server) {
      self->request(server, infinite, 42).then([=](int x) {
        CAF_LOG_TRACE(CAF_ARG(x));
        CAF_REQUIRE_EQUAL(x, 42);
      });
    };
    spawn(f, mirror);
    // run initialization code of testee
    sched.run_once();
    expect((int), from(testee).to(mirror).with(42));
    expect((int), from(mirror).to(testee).with(42));
  }
  
  CAF_TEST(multiple_multiplexed_requests) {
    auto f = [&](event_based_actor* self, actor server) {
      for (int i = 0; i < 3; ++i)
        self->request(server, infinite, 42).then([=](int x) {
          CAF_LOG_TRACE(CAF_ARG(x));
          CAF_REQUIRE_EQUAL(x, 42);
        });
    };
    spawn(f, mirror);
    // run initialization code of testee
    sched.run_once();
    expect((int), from(testee).to(mirror).with(42));
    expect((int), from(testee).to(mirror).with(42));
    expect((int), from(testee).to(mirror).with(42));
    expect((int), from(mirror).to(testee).with(42));
    expect((int), from(mirror).to(testee).with(42));
    expect((int), from(mirror).to(testee).with(42));
  }
  
  CAF_TEST(single_awaited_request) {
    auto f = [&](event_based_actor* self, actor server) {
      self->request(server, infinite, 42).await(
        [=](int x) {
          CAF_REQUIRE_EQUAL(x, 42);
        }
      );
    };
    spawn(f, mirror);
    // run initialization code of testee
    sched.run_once();
    expect((int), from(testee).to(mirror).with(42));
    expect((int), from(mirror).to(testee).with(42));
  }
  
  CAF_TEST(multiple_awaited_requests) {
    auto f = [&](event_based_actor* self, actor server) {
      for (int i = 0; i < 3; ++i)
        self->request(server, infinite, i).await(
          [=](int x) {
            CAF_MESSAGE("received response #" << (i + 1));
            CAF_REQUIRE_EQUAL(x, i);
          }
        );
    };
    spawn(f, mirror);
    // run initialization code of testee
    sched.run_once();
    self->monitor(testee);
    expect((int), from(testee).to(mirror).with(0));
    expect((int), from(testee).to(mirror).with(1));
    expect((int), from(testee).to(mirror).with(2));
    // request().await() processes messages out-of-order,
    // which means we cannot check using expect()
    sched.run();
    expect((down_msg), from(testee).to(self).with(_));
  }
  
  CAF_TEST_FIXTURE_SCOPE_END()
  