Don't preload rarely seen large images
[chromium-blink-merge.git] / base / containers / hash_tables_unittest.cc
blobf775dff15a8be1627edf03e52337aabffa2c4ced
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.
5 #include "base/containers/hash_tables.h"
7 #include <stdint.h>
8 #include <string>
10 #include "base/basictypes.h"
11 #include "testing/gtest/include/gtest/gtest.h"
13 namespace {
15 class HashPairTest : public testing::Test {
18 #define INSERT_PAIR_TEST(Type, value1, value2) \
19 { \
20 Type pair(value1, value2); \
21 base::hash_map<Type, int> map; \
22 map[pair] = 1; \
25 // Verify that a hash_map can be constructed for pairs of integers of various
26 // sizes.
27 TEST_F(HashPairTest, IntegerPairs) {
28 typedef std::pair<int16, int16> Int16Int16Pair;
29 typedef std::pair<int16, int32> Int16Int32Pair;
30 typedef std::pair<int16, int64> Int16Int64Pair;
32 INSERT_PAIR_TEST(Int16Int16Pair, 4, 6);
33 INSERT_PAIR_TEST(Int16Int32Pair, 9, (1 << 29) + 378128932);
34 INSERT_PAIR_TEST(Int16Int64Pair, 10,
35 (INT64_C(1) << 60) + INT64_C(78931732321));
37 typedef std::pair<int32, int16> Int32Int16Pair;
38 typedef std::pair<int32, int32> Int32Int32Pair;
39 typedef std::pair<int32, int64> Int32Int64Pair;
41 INSERT_PAIR_TEST(Int32Int16Pair, 4, 6);
42 INSERT_PAIR_TEST(Int32Int32Pair, 9, (1 << 29) + 378128932);
43 INSERT_PAIR_TEST(Int32Int64Pair, 10,
44 (INT64_C(1) << 60) + INT64_C(78931732321));
46 typedef std::pair<int64, int16> Int64Int16Pair;
47 typedef std::pair<int64, int32> Int64Int32Pair;
48 typedef std::pair<int64, int64> Int64Int64Pair;
50 INSERT_PAIR_TEST(Int64Int16Pair, 4, 6);
51 INSERT_PAIR_TEST(Int64Int32Pair, 9, (1 << 29) + 378128932);
52 INSERT_PAIR_TEST(Int64Int64Pair, 10,
53 (INT64_C(1) << 60) + INT64_C(78931732321));
56 // Verify that base::hash_set<const char*> compares by pointer value, not as C
57 // strings.
58 TEST(HashTableTest, CharPointers) {
59 std::string str1("hello");
60 std::string str2("hello");
61 base::hash_set<const char*> set;
63 set.insert(str1.c_str());
64 EXPECT_EQ(1u, set.count(str1.c_str()));
65 EXPECT_EQ(0u, set.count(str2.c_str()));
68 } // namespace