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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "microtest.h"
#include "io/stream_reader.h"
#include "nbt_tags.h"
#include <fstream>
#include <sstream>
using namespace nbt;
void test_stream_reader_big()
{
const char input[] {
1, //tag_type::Byte
0, //tag_type::End
11, //tag_type::Int_Array
0x0a, 0x0b, 0x0c, 0x0d, //0x0a0b0c0d in Big Endian
0x00, 0x06, //String length in Big Endian
'f', 'o', 'o', 'b', 'a', 'r',
0 //tag_type::End (invalid with allow_end = false)
};
std::istringstream is(std::string(input, sizeof input));
nbt::io::stream_reader reader(is);
ASSERT(&reader.get_istr() == &is);
ASSERT(reader.get_endian() == endian::big);
ASSERT(reader.read_type() == tag_type::Byte);
ASSERT(reader.read_type(true) == tag_type::End);
ASSERT(reader.read_type(false) == tag_type::Int_Array);
int32_t i;
reader.read_num(i);
ASSERT(i == 0x0a0b0c0d);
ASSERT(reader.read_string() == "foobar");
EXPECT_EXCEPTION(reader.read_type(false), io::input_error);
ASSERT(!is);
is.clear();
//Test for invalid tag type 12
is.str("\x0c");
EXPECT_EXCEPTION(reader.read_type(), io::input_error);
ASSERT(!is);
is.clear();
//Test for unexpcted EOF on numbers (input too short for int32_t)
is.str("\x03\x04");
reader.read_num(i);
ASSERT(!is);
}
void test_stream_reader_little()
{
const char input[] {
0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, //0x0d0c0b0a09080706 in Little Endian
0x06, 0x00, //String length in Little Endian
'f', 'o', 'o', 'b', 'a', 'r',
0x10, 0x00, //String length (intentionally too large)
'a', 'b', 'c', 'd' //unexpected EOF
};
std::istringstream is(std::string(input, sizeof input));
nbt::io::stream_reader reader(is, endian::little);
ASSERT(reader.get_endian() == endian::little);
int64_t i;
reader.read_num(i);
ASSERT(i == 0x0d0c0b0a09080706);
ASSERT(reader.read_string() == "foobar");
EXPECT_EXCEPTION(reader.read_string(), io::input_error);
ASSERT(!is);
}
void test_read_bigtest()
{
//Uses an extended variant of Notch's original bigtest file
std::ifstream file("bigtest_uncompr", std::ios::binary);
ASSERT(file);
nbt::io::stream_reader reader(file);
auto pair = reader.read_tag();
ASSERT(pair.first == "Level");
ASSERT(pair.second->get_type() == tag_type::Compound);
const tag_compound& comp = pair.second->as<tag_compound>();
ASSERT(comp.size() == 13);
ASSERT(comp.at("byteTest") == tag_byte(127));
ASSERT(comp.at("shortTest") == tag_short(32767));
ASSERT(comp.at("intTest") == tag_int(2147483647));
ASSERT(comp.at("longTest") == tag_long(9223372036854775807));
ASSERT(comp.at("floatTest") == tag_float(std::stof("0xff1832p-25"))); //0.4982315
ASSERT(comp.at("doubleTest") == tag_double(std::stod("0x1f8f6bbbff6a5ep-54"))); //0.493128713218231
//From bigtest.nbt: "the first 1000 values of (n*n*255+n*7)%100, starting with n=0 (0, 62, 34, 16, 8, ...)"
tag_byte_array byteArrayTest;
for(int n = 0; n < 1000; ++n)
byteArrayTest.push_back((n*n*255 + n*7) % 100);
ASSERT(comp.at("byteArrayTest (the first 1000 values of (n*n*255+n*7)%100, starting with n=0 (0, 62, 34, 16, 8, ...))") == byteArrayTest);
ASSERT(comp.at("stringTest") == tag_string("HELLO WORLD THIS IS A TEST STRING \u00C5\u00C4\u00D6!"));
ASSERT(comp.at("listTest (compound)") == tag_list::of<tag_compound>({
{{"created-on", tag_long(1264099775885)}, {"name", "Compound tag #0"}},
{{"created-on", tag_long(1264099775885)}, {"name", "Compound tag #1"}}
}));
ASSERT(comp.at("listTest (long)") == tag_list::of<tag_long>({11, 12, 13, 14, 15}));
ASSERT(comp.at("listTest (end)") == tag_list());
ASSERT((comp.at("nested compound test") == tag_compound{
{"egg", tag_compound{{"value", 0.5f}, {"name", "Eggbert"}}},
{"ham", tag_compound{{"value", 0.75f}, {"name", "Hampus"}}}
}));
ASSERT(comp.at("intArrayTest") == tag_int_array(
{0x00010203, 0x04050607, 0x08090a0b, 0x0c0d0e0f}));
}
void test_read_errors()
{
std::ifstream file;
nbt::io::stream_reader reader(file);
//EOF within a tag_double payload
file.open("errortest_eof1", std::ios::binary);
ASSERT(file);
EXPECT_EXCEPTION(reader.read_tag(), io::input_error);
ASSERT(!file);
//EOF within a key in a compound
file.close();
file.open("errortest_eof2", std::ios::binary);
ASSERT(file);
EXPECT_EXCEPTION(reader.read_tag(), io::input_error);
ASSERT(!file);
//Missing tag_end
file.close();
file.open("errortest_noend", std::ios::binary);
ASSERT(file);
EXPECT_EXCEPTION(reader.read_tag(), io::input_error);
ASSERT(!file);
//Negative list length
file.close();
file.open("errortest_neg_length", std::ios::binary);
ASSERT(file);
EXPECT_EXCEPTION(reader.read_tag(), io::input_error);
ASSERT(!file);
}
int main()
{
test_stream_reader_big();
test_stream_reader_little();
test_read_bigtest();
test_read_errors();
}
|
