cc/base/hash_pair_unittest.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/base/hash_pair.h"
   6
   7 #include "base/basictypes.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9
  10 namespace {
  11
  12 class HashPairTest : public testing::Test {
  13 };
  14
  15 #define INSERT_PAIR_TEST(Type, value1, value2) \
  16   { \
  17     Type pair(value1, value2); \
  18     base::hash_map<Type, int> map; \
  19     map[pair] = 1; \
  20   }
  21
  22 // Verify that a hash_map can be constructed for pairs of integers of various
  23 // sizes.
  24 TEST_F(HashPairTest, IntegerPairs) {
  25   typedef std::pair<int16, int16> Int16Int16Pair;
  26   typedef std::pair<int16, int32> Int16Int32Pair;
  27   typedef std::pair<int16, int64> Int16Int64Pair;
  28
  29   INSERT_PAIR_TEST(Int16Int16Pair, 4, 6);
  30   INSERT_PAIR_TEST(Int16Int32Pair, 9, (1 << 29) + 378128932);
  31   INSERT_PAIR_TEST(Int16Int64Pair, 10,
  32                    (GG_INT64_C(1) << 60) + GG_INT64_C(78931732321));
  33
  34   typedef std::pair<int32, int16> Int32Int16Pair;
  35   typedef std::pair<int32, int32> Int32Int32Pair;
  36   typedef std::pair<int32, int64> Int32Int64Pair;
  37
  38   INSERT_PAIR_TEST(Int32Int16Pair, 4, 6);
  39   INSERT_PAIR_TEST(Int32Int32Pair, 9, (1 << 29) + 378128932);
  40   INSERT_PAIR_TEST(Int32Int64Pair, 10,
  41                    (GG_INT64_C(1) << 60) + GG_INT64_C(78931732321));
  42
  43   typedef std::pair<int64, int16> Int64Int16Pair;
  44   typedef std::pair<int64, int32> Int64Int32Pair;
  45   typedef std::pair<int64, int64> Int64Int64Pair;
  46
  47   INSERT_PAIR_TEST(Int64Int16Pair, 4, 6);
  48   INSERT_PAIR_TEST(Int64Int32Pair, 9, (1 << 29) + 378128932);
  49   INSERT_PAIR_TEST(Int64Int64Pair, 10,
  50                    (GG_INT64_C(1) << 60) + GG_INT64_C(78931732321));
  51 }
  52
  53 }  // namespace