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
79
80
81
82
83
84
85
86
87
88
89
|
/*
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under both the BSD-style license (found in the
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
* in the COPYING file in the root directory of this source tree).
*/
#include "utils/Buffer.h"
#include "utils/Range.h"
#include <gtest/gtest.h>
#include <memory>
using namespace pzstd;
namespace {
void deleter(const unsigned char* buf) {
delete[] buf;
}
}
TEST(Buffer, Constructors) {
Buffer empty;
EXPECT_TRUE(empty.empty());
EXPECT_EQ(0, empty.size());
Buffer sized(5);
EXPECT_FALSE(sized.empty());
EXPECT_EQ(5, sized.size());
Buffer moved(std::move(sized));
EXPECT_FALSE(sized.empty());
EXPECT_EQ(5, sized.size());
Buffer assigned;
assigned = std::move(moved);
EXPECT_FALSE(sized.empty());
EXPECT_EQ(5, sized.size());
}
TEST(Buffer, BufferManagement) {
std::shared_ptr<unsigned char> buf(new unsigned char[10], deleter);
{
Buffer acquired(buf, MutableByteRange(buf.get(), buf.get() + 10));
EXPECT_EQ(2, buf.use_count());
Buffer moved(std::move(acquired));
EXPECT_EQ(2, buf.use_count());
Buffer assigned;
assigned = std::move(moved);
EXPECT_EQ(2, buf.use_count());
Buffer split = assigned.splitAt(5);
EXPECT_EQ(3, buf.use_count());
split.advance(1);
assigned.subtract(1);
EXPECT_EQ(3, buf.use_count());
}
EXPECT_EQ(1, buf.use_count());
}
TEST(Buffer, Modifiers) {
Buffer buf(10);
{
unsigned char i = 0;
for (auto& byte : buf.range()) {
byte = i++;
}
}
auto prefix = buf.splitAt(2);
ASSERT_EQ(2, prefix.size());
EXPECT_EQ(0, *prefix.data());
ASSERT_EQ(8, buf.size());
EXPECT_EQ(2, *buf.data());
buf.advance(2);
EXPECT_EQ(4, *buf.data());
EXPECT_EQ(9, *(buf.range().end() - 1));
buf.subtract(2);
EXPECT_EQ(7, *(buf.range().end() - 1));
EXPECT_EQ(4, buf.size());
}
|
