legacy-libs/grpc-cloned/deps/grpc/third_party/boringssl/crypto/refcount_test.cc

   1 /* Copyright (c) 2015, Google Inc.
   2  *
   3  * Permission to use, copy, modify, and/or distribute this software for any
   4  * purpose with or without fee is hereby granted, provided that the above
   5  * copyright notice and this permission notice appear in all copies.
   6  *
   7  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   8  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   9  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  10  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  11  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  12  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  13  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
  14
  15 #include "internal.h"
  16
  17 #include <gtest/gtest.h>
  18
  19
  20 TEST(RefCountTest, Basic) {
  21   CRYPTO_refcount_t count = 0;
  22
  23   CRYPTO_refcount_inc(&count);
  24   EXPECT_EQ(1u, count);
  25
  26   EXPECT_TRUE(CRYPTO_refcount_dec_and_test_zero(&count));
  27   EXPECT_EQ(0u, count);
  28
  29   count = CRYPTO_REFCOUNT_MAX;
  30   CRYPTO_refcount_inc(&count);
  31   EXPECT_EQ(CRYPTO_REFCOUNT_MAX, count)
  32       << "Count did not saturate correctly when incrementing.";
  33   EXPECT_FALSE(CRYPTO_refcount_dec_and_test_zero(&count));
  34   EXPECT_EQ(CRYPTO_REFCOUNT_MAX, count)
  35       << "Count did not saturate correctly when decrementing.";
  36
  37   count = 2;
  38   EXPECT_FALSE(CRYPTO_refcount_dec_and_test_zero(&count));
  39   EXPECT_EQ(1u, count);
  40 }