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
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/******************************************************************************
* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright 2011-2018 Dominik Charousset *
* *
* Distributed under the terms and conditions of the BSD 3-Clause License or *
* (at your option) under the terms and conditions of the Boost Software *
* License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE. *
* *
* If you did not receive a copy of the license files, see *
* http://opensource.org/licenses/BSD-3-Clause and *
* http://www.boost.org/LICENSE_1_0.txt. *
******************************************************************************/
#include "caf/config.hpp"
#define CAF_SUITE streambuf
#include "caf/test/unit_test.hpp"
#include "caf/streambuf.hpp"
using namespace caf;
CAF_TEST(signed_arraybuf) {
auto data = std::string{"The quick brown fox jumps over the lazy dog"};
arraybuf<char> ab{data};
// Let's read some.
CAF_CHECK_EQUAL(static_cast<size_t>(ab.in_avail()), data.size());
CAF_CHECK_EQUAL(ab.sgetc(), 'T');
std::string buf;
buf.resize(3);
auto got = ab.sgetn(&buf[0], 3);
CAF_CHECK_EQUAL(got, 3);
CAF_CHECK_EQUAL(buf, "The");
CAF_CHECK_EQUAL(ab.sgetc(), ' ');
// Exhaust the stream.
buf.resize(data.size());
got = ab.sgetn(&buf[0] + 3, static_cast<std::streamsize>(data.size() - 3));
CAF_CHECK_EQUAL(static_cast<size_t>(got), data.size() - 3);
CAF_CHECK_EQUAL(data, buf);
CAF_CHECK_EQUAL(ab.in_avail(), 0);
// No more.
auto c = ab.sgetc();
CAF_CHECK_EQUAL(c, charbuf::traits_type::eof());
// Reset the stream and write into it.
ab.pubsetbuf(&data[0], static_cast<std::streamsize>(data.size()));
CAF_CHECK_EQUAL(static_cast<size_t>(ab.in_avail()), data.size());
auto put = ab.sputn("One", 3);
CAF_CHECK_EQUAL(put, 3);
CAF_CHECK(data.compare(0, 3, "One") == 0);
}
CAF_TEST(unsigned_arraybuf) {
using buf_type = arraybuf<uint8_t>;
std::vector<uint8_t> data = {0x0a, 0x0b, 0x0c, 0x0d};
buf_type ab{data};
decltype(data) buf;
std::copy(std::istreambuf_iterator<uint8_t>{&ab},
std::istreambuf_iterator<uint8_t>{},
std::back_inserter(buf));
CAF_CHECK_EQUAL(data, buf);
// Relative positioning.
using pos_type = buf_type::pos_type;
using int_type = buf_type::int_type;
CAF_CHECK_EQUAL(ab.pubseekoff(2, std::ios::beg, std::ios::in), pos_type{2});
CAF_CHECK_EQUAL(ab.sbumpc(), int_type{0x0c});
CAF_CHECK_EQUAL(ab.sgetc(), int_type{0x0d});
CAF_CHECK_EQUAL(ab.pubseekoff(0, std::ios::cur, std::ios::in), pos_type{3});
CAF_CHECK_EQUAL(ab.pubseekoff(-2, std::ios::cur, std::ios::in), pos_type{1});
CAF_CHECK_EQUAL(ab.sgetc(), int_type{0x0b});
CAF_CHECK_EQUAL(ab.pubseekoff(-4, std::ios::end, std::ios::in), pos_type{0});
CAF_CHECK_EQUAL(ab.sgetc(), int_type{0x0a});
// Absolute positioning.
CAF_CHECK_EQUAL(ab.pubseekpos(1, std::ios::in), pos_type{1});
CAF_CHECK_EQUAL(ab.sgetc(), int_type{0x0b});
CAF_CHECK_EQUAL(ab.pubseekpos(3, std::ios::in), pos_type{3});
CAF_CHECK_EQUAL(ab.sbumpc(), int_type{0x0d});
CAF_CHECK_EQUAL(ab.in_avail(), std::streamsize{0});
}
CAF_TEST(containerbuf) {
std::string data{
"Habe nun, ach! Philosophie,\n"
"Juristerei und Medizin,\n"
"Und leider auch Theologie\n"
"Durchaus studiert, mit heißem Bemühn.\n"
"Da steh ich nun, ich armer Tor!\n"
"Und bin so klug als wie zuvor"
};
// Write some data.
std::vector<char> buf;
vectorbuf vb{buf};
auto put = vb.sputn(data.data(), static_cast<std::streamsize>(data.size()));
CAF_CHECK_EQUAL(static_cast<size_t>(put), data.size());
put = vb.sputn(";", 1);
CAF_CHECK_EQUAL(put, 1);
std::string target;
std::copy(buf.begin(), buf.end(), std::back_inserter(target));
CAF_CHECK_EQUAL(data + ';', target);
// Check "overflow" on a new stream.
buf.clear();
vectorbuf vb2{buf};
auto chr = vb2.sputc('x');
CAF_CHECK_EQUAL(chr, 'x');
// Let's read some data into a stream.
buf.clear();
containerbuf<std::string> scb{data};
std::copy(std::istreambuf_iterator<char>{&scb},
std::istreambuf_iterator<char>{},
std::back_inserter(buf));
CAF_CHECK_EQUAL(buf.size(), data.size());
CAF_CHECK(std::equal(buf.begin(), buf.end(), data.begin() /*, data.end() */));
// We're done, nothing to see here, please move along.
CAF_CHECK_EQUAL(scb.sgetc(), containerbuf<std::string>::traits_type::eof());
// Let's read again, but now in one big block.
buf.clear();
containerbuf<std::string> sib2{data};
buf.resize(data.size());
auto got = sib2.sgetn(&buf[0], static_cast<std::streamsize>(buf.size()));
CAF_CHECK_EQUAL(static_cast<size_t>(got), data.size());
CAF_CHECK_EQUAL(buf.size(), data.size());
CAF_CHECK(std::equal(buf.begin(), buf.end(), data.begin() /*, data.end() */));
}
CAF_TEST(containerbuf_reset_get_area) {
std::string str{"foobar"};
std::vector<char> buf;
vectorbuf vb{buf};
// We can always write to the underlying buffer; no put area needed.
auto n = vb.sputn(str.data(), static_cast<std::streamsize>(str.size()));
CAF_REQUIRE_EQUAL(n, 6);
// Readjust the get area.
CAF_REQUIRE_EQUAL(buf.size(), 6u);
vb.pubsetbuf(buf.data() + 3, static_cast<std::streamsize>(buf.size() - 3));
// Now read from a new get area into a buffer.
char bar[3];
n = vb.sgetn(bar, 3);
CAF_CHECK_EQUAL(n, 3);
CAF_CHECK_EQUAL(std::string(bar, 3), "bar");
// Synchronize the get area after having messed with the underlying buffer.
buf.resize(1);
CAF_CHECK_EQUAL(vb.pubsync(), 0);
CAF_CHECK_EQUAL(vb.sbumpc(), 'f');
CAF_CHECK_EQUAL(vb.in_avail(), 0);
}
|
