base/containers/hash_tables_unittest.cc

   1 // Copyright 2013 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 "base/containers/hash_tables.h"
   6
   7 #include <string>
   8
   9 #include "base/basictypes.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11
  12 namespace {
  13
  14 class HashPairTest : public testing::Test {
  15 };
  16
  17 #define INSERT_PAIR_TEST(Type, value1, value2) \
  18   { \
  19     Type pair(value1, value2); \
  20     base::hash_map<Type, int> map; \
  21     map[pair] = 1; \
  22   }
  23
  24 // Verify that a hash_map can be constructed for pairs of integers of various
  25 // sizes.
  26 TEST_F(HashPairTest, IntegerPairs) {
  27   typedef std::pair<int16, int16> Int16Int16Pair;
  28   typedef std::pair<int16, int32> Int16Int32Pair;
  29   typedef std::pair<int16, int64> Int16Int64Pair;
  30
  31   INSERT_PAIR_TEST(Int16Int16Pair, 4, 6);
  32   INSERT_PAIR_TEST(Int16Int32Pair, 9, (1 << 29) + 378128932);
  33   INSERT_PAIR_TEST(Int16Int64Pair, 10,
  34                    (GG_INT64_C(1) << 60) + GG_INT64_C(78931732321));
  35
  36   typedef std::pair<int32, int16> Int32Int16Pair;
  37   typedef std::pair<int32, int32> Int32Int32Pair;
  38   typedef std::pair<int32, int64> Int32Int64Pair;
  39
  40   INSERT_PAIR_TEST(Int32Int16Pair, 4, 6);
  41   INSERT_PAIR_TEST(Int32Int32Pair, 9, (1 << 29) + 378128932);
  42   INSERT_PAIR_TEST(Int32Int64Pair, 10,
  43                    (GG_INT64_C(1) << 60) + GG_INT64_C(78931732321));
  44
  45   typedef std::pair<int64, int16> Int64Int16Pair;
  46   typedef std::pair<int64, int32> Int64Int32Pair;
  47   typedef std::pair<int64, int64> Int64Int64Pair;
  48
  49   INSERT_PAIR_TEST(Int64Int16Pair, 4, 6);
  50   INSERT_PAIR_TEST(Int64Int32Pair, 9, (1 << 29) + 378128932);
  51   INSERT_PAIR_TEST(Int64Int64Pair, 10,
  52                    (GG_INT64_C(1) << 60) + GG_INT64_C(78931732321));
  53 }
  54
  55 // Verify that base::hash_set<const char*> compares by pointer value, not as C
  56 // strings.
  57 TEST(HashTableTest, CharPointers) {
  58   std::string str1("hello");
  59   std::string str2("hello");
  60   base::hash_set<const char*> set;
  61
  62   set.insert(str1.c_str());
  63   EXPECT_EQ(1u, set.count(str1.c_str()));
  64   EXPECT_EQ(0u, set.count(str2.c_str()));
  65 }
  66
  67 }  // namespace