text: /*
   *
   * Copyright 2015-2016, Google Inc.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   *
   *     * Redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer.
   *     * Redistributions in binary form must reproduce the above
   * copyright notice, this list of conditions and the following disclaimer
   * in the documentation and/or other materials provided with the
   * distribution.
   *     * Neither the name of Google Inc. nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   */
  
  #include <grpc++/alarm.h>
  #include <grpc++/completion_queue.h>
  #include <gtest/gtest.h>
  
  #include "test/core/util/test_config.h"
  
  namespace grpc {
  namespace {
  
  TEST(AlarmTest, RegularExpiry) {
    CompletionQueue cq;
    void* junk = reinterpret_cast<void*>(1618033);
    Alarm alarm(&cq, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1), junk);
  
    void* output_tag;
    bool ok;
    const CompletionQueue::NextStatus status = cq.AsyncNext(
        (void**)&output_tag, &ok, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(2));
  
    EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
    EXPECT_TRUE(ok);
    EXPECT_EQ(junk, output_tag);
  }
  
  TEST(AlarmTest, RegularExpiryChrono) {
    CompletionQueue cq;
    void* junk = reinterpret_cast<void*>(1618033);
    std::chrono::system_clock::time_point one_sec_deadline =
        std::chrono::system_clock::now() + std::chrono::seconds(1);
    Alarm alarm(&cq, one_sec_deadline, junk);
  
    void* output_tag;
    bool ok;
    const CompletionQueue::NextStatus status = cq.AsyncNext(
        (void**)&output_tag, &ok, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(2));
  
    EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
    EXPECT_TRUE(ok);
    EXPECT_EQ(junk, output_tag);
  }
  
  TEST(AlarmTest, ZeroExpiry) {
    CompletionQueue cq;
    void* junk = reinterpret_cast<void*>(1618033);
    Alarm alarm(&cq, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(0), junk);
  
    void* output_tag;
    bool ok;
    const CompletionQueue::NextStatus status = cq.AsyncNext(
        (void**)&output_tag, &ok, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(0));
  
    EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
    EXPECT_TRUE(ok);
    EXPECT_EQ(junk, output_tag);
  }
  
  TEST(AlarmTest, NegativeExpiry) {
    CompletionQueue cq;
    void* junk = reinterpret_cast<void*>(1618033);
    Alarm alarm(&cq, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(-1), junk);
  
    void* output_tag;
    bool ok;
    const CompletionQueue::NextStatus status = cq.AsyncNext(
        (void**)&output_tag, &ok, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(0));
  
    EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
    EXPECT_TRUE(ok);
    EXPECT_EQ(junk, output_tag);
  }
  
  TEST(AlarmTest, Cancellation) {
    CompletionQueue cq;
    void* junk = reinterpret_cast<void*>(1618033);
    Alarm alarm(&cq, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(2), junk);
    alarm.Cancel();
  
    void* output_tag;
    bool ok;
    const CompletionQueue::NextStatus status = cq.AsyncNext(
        (void**)&output_tag, &ok, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1));
  
    EXPECT_EQ(status, CompletionQueue::GOT_EVENT);
    EXPECT_FALSE(ok);
    EXPECT_EQ(junk, output_tag);
  }
  
  }  // namespace
  }  // namespace grpc
  
  int main(int argc, char** argv) {
    grpc_test_init(argc, argv);
    ::testing::InitGoogleTest(&argc, argv);
    return RUN_ALL_TESTS();
  }
  