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/*
* 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 == 0x0a0b0c0dL);
ASSERT(reader.read_string() == "foobar");
EXPECT_EXCEPTION(reader.read_type(false), io::stream_reader::input_error);
ASSERT(!is);
is.clear();
//Test for invalid tag type 12
is.str("\x0c");
EXPECT_EXCEPTION(reader.read_type(), io::stream_reader::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 == 0x0d0c0b0a09080706LL);
ASSERT(reader.read_string() == "foobar");
EXPECT_EXCEPTION(reader.read_string(), io::stream_reader::input_error);
ASSERT(!is);
}
void test_read_bigtest()
{
std::ifstream file("bigtest_uncompressed", std::ios::binary);
ASSERT(file);
nbt::io::stream_reader reader(file);
ASSERT(reader.read_type() == tag_type::Compound);
ASSERT(reader.read_string() == "Level");
auto tagptr = reader.read_payload(tag_type::Compound);
ASSERT(tagptr->get_type() == tag_type::Compound);
const tag_compound& comp = static_cast<const tag_compound&>(*tagptr);
ASSERT(comp.size() == 11);
ASSERT(comp.at("byteTest") == tag_byte(127));
ASSERT(comp.at("shortTest") == tag_short(32767));
ASSERT(comp.at("intTest") == tag_int(2147483647L));
ASSERT(comp.at("longTest") == tag_long(9223372036854775807LL));
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.get().push_back((n*n*255 + n*7) % 100);
ASSERT(comp.at("byteArrayTest") == 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("nested compound test") == tag_compound{
{"egg", tag_compound{{"value", 0.5f}, {"name", "Eggbert"}}},
{"ham", tag_compound{{"value", 0.75f}, {"name", "Hampus"}}}
}));
}
int main()
{
test_stream_reader_big();
test_stream_reader_little();
test_read_bigtest();
}
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