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
|
#include "write.hpp"
// io/write_test.cpp - Testsuite for output to files
//
// Copyright © 2013 Ben Longbons <b.r.longbons@gmail.com>
//
// This file is part of The Mana World (Athena server)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// 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
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#include <gtest/gtest.h>
#include <fcntl.h>
#include <unistd.h>
#include "../strings/astring.hpp"
#include "../strings/mstring.hpp"
#include "../strings/xstring.hpp"
#include "../strings/literal.hpp"
#include "../poison.hpp"
#pragma GCC diagnostic ignored "-Wzero-as-null-pointer-constant"
static
io::FD pipew(io::FD& rfd)
{
io::FD wfd;
if (-1 == io::FD::pipe2(rfd, wfd, O_NONBLOCK))
{
rfd = io::FD();
return io::FD();
}
return wfd;
}
class PipeWriter
{
private:
io::FD rfd;
public:
io::WriteFile wf;
public:
PipeWriter(bool lb)
: wf(pipew(rfd), lb)
{}
~PipeWriter()
{
rfd.close();
}
AString slurp()
{
MString tmp;
char buf[4096];
while (true)
{
ssize_t rv = rfd.read(buf, sizeof(buf));
if (rv == -1)
{
if (errno != EAGAIN)
return "Error, read failed :("_s;
rv = 0;
}
if (rv == 0)
break;
tmp += XString(buf + 0, buf + rv, nullptr);
}
return AString(tmp);
}
};
TEST(io, write1)
{
PipeWriter pw(false);
io::WriteFile& wf = pw.wf;
wf.really_put("Hello, ", 7);
EXPECT_EQ(""_s, pw.slurp());
wf.put_line("World!\n"_s);
EXPECT_EQ(""_s, pw.slurp());
EXPECT_TRUE(wf.close());
EXPECT_EQ("Hello, World!\n"_s, pw.slurp());
}
TEST(io, write2)
{
PipeWriter pw(true);
io::WriteFile& wf = pw.wf;
wf.really_put("Hello, ", 7);
EXPECT_EQ(""_s, pw.slurp());
wf.put_line("World!"_s);
wf.really_put("XXX", 3);
EXPECT_EQ("Hello, World!\n"_s, pw.slurp());
EXPECT_TRUE(wf.close());
EXPECT_EQ("XXX"_s, pw.slurp());
}
|
