text: 
  /*
   *
   * Copyright 2019 gRPC authors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   *
   */
  
  #include "src/core/lib/iomgr/poller/eventmanager_libuv.h"
  
  #include <grpc/grpc.h>
  #include <grpc/support/time.h>
  #include <gtest/gtest.h>
  
  #include "test/core/util/test_config.h"
  
  using grpc::experimental::LibuvEventManager;
  
  namespace grpc_core {
  namespace {
  
  TEST(LibuvEventManager, Allocation) {
    for (int i = 0; i < 10; i++) {
      LibuvEventManager* em =
          new LibuvEventManager(LibuvEventManager::Options(i));
      gpr_sleep_until(grpc_timeout_milliseconds_to_deadline(1));
      delete em;
    }
  }
  
  TEST(LibuvEventManager, ShutdownRef) {
    for (int i = 0; i < 10; i++) {
      LibuvEventManager* em =
          new LibuvEventManager(LibuvEventManager::Options(i));
      for (int j = 0; j < i; j++) {
        em->ShutdownRef();
      }
      gpr_sleep_until(grpc_timeout_milliseconds_to_deadline(1));
      for (int j = 0; j < i; j++) {
        em->ShutdownUnref();
      }
      delete em;
    }
  }
  
  TEST(LibuvEventManager, ShutdownRefAsync) {
    for (int i = 0; i < 10; i++) {
      LibuvEventManager* em =
          new LibuvEventManager(LibuvEventManager::Options(i));
      for (int j = 0; j < i; j++) {
        em->ShutdownRef();
      }
      // TSAN doesn't like this approach although this would work. TSAN considers
      // it dangerous to have a destructor being called while its member function
      // is called but LibuvEventManager handles this by making LibuvEventManager
      // wait until all pending operations finish.
      grpc_core::Thread deleter(
          "deleter", [](void* em) { delete static_cast<LibuvEventManager*>(em); },
          em);
      deleter.Start();
      gpr_sleep_until(grpc_timeout_milliseconds_to_deadline(1));
      for (int j = 0; j < i; j++) {
        em->ShutdownUnref();
      }
      deleter.Join();
    }
  }
  
  }  // namespace
  }  // namespace grpc_core
  
  int main(int argc, char** argv) {
    grpc_init();
    grpc::testing::TestEnvironment env(argc, argv);
    ::testing::InitGoogleTest(&argc, argv);
    int retval = RUN_ALL_TESTS();
    grpc_shutdown();
    return retval;
  }
  