test/cpp/common/alarm_test.cc

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#include <grpc++/alarm.h>
#include <grpc++/completion_queue.h>
#include <gtest/gtest.h>

#include <grpc++/completion_queue.h>
#include "test/core/util/test_config.h"

namespace grpc {
namespace {

class TestTag : public CompletionQueueTag {
 public:
  TestTag() : tag_(0) {}
  TestTag(intptr_t tag) : tag_(tag) {}
  bool FinalizeResult(void** tag, bool* status) { return true; }
  intptr_t tag() { return tag_; }

 private:
  intptr_t tag_;
};

TEST(AlarmTest, RegularExpiry) {
  CompletionQueue cq;
  TestTag input_tag(1618033);
  Alarm alarm(&cq, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1), &input_tag);

  TestTag* 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(output_tag->tag(), input_tag.tag());
}

TEST(AlarmTest, Cancellation) {
  CompletionQueue cq;
  TestTag input_tag(1618033);
  Alarm alarm(&cq, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(2), &input_tag);
  alarm.Cancel();

  TestTag* 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(output_tag->tag(), input_tag.tag());
}

}  // namespace
}  // namespace grpc

int main(int argc, char** argv) {
  ::testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}