1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/**
* Copyright (C) 2019-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include <vector>
#include "mongo/unittest/unittest.h"
#include "mongo/util/container_size_helper.h"
namespace {
struct Mock {
int size;
};
TEST(ContainerSizeHelper, TestEstimateObjectSizeInBytes) {
std::vector<Mock> vect = {{1}, {2}, {3}, {4}};
// Sum of 'size' of each element '1 + 2 + 3 + 4'.
uint64_t expectedSize = 10;
// When 'includeComplieTimeSize' is false should return only the sum of sizes calculated by the
// 'function'.
ASSERT_EQ(mongo::container_size_helper::estimateObjectSizeInBytes(
vect, [](const auto& obj) { return obj.size; }, false),
expectedSize);
// When 'includeShallowSize' is true, should add size of 'Mock' object.
ASSERT_EQ(mongo::container_size_helper::estimateObjectSizeInBytes(
vect, [](const auto& obj) { return obj.size; }, true),
expectedSize + sizeof(Mock) * vect.capacity());
}
TEST(ContainerSizeHelper, TestEstimateObjectSizeInBytesWithPointers) {
Mock obj1 = {2};
Mock obj2 = {1};
std::vector<Mock*> vect = {&obj1, &obj1, &obj2};
// Sum of 'size' of each element '2 + 2 + 1'.
uint64_t expectedSize = 5;
// Reserve extra space for the vector.
vect.reserve(10);
ASSERT_EQ(static_cast<size_t>(10), vect.capacity());
// When 'includeShallowSize' is true, should add size of 'Mock*' pointer.
ASSERT_EQ(mongo::container_size_helper::estimateObjectSizeInBytes(
vect, [](const auto& obj) { return obj->size; }, true),
expectedSize + sizeof(Mock*) * vect.capacity());
}
} // namespace
|
