grpc/test/cpp/common/alarm_cpp_test.cc

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#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();
}