premiere-libtorrent/test/test_bencoding.cpp

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#include "libtorrent/bencode.hpp"
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#include "libtorrent/lazy_entry.hpp"
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#include <boost/lexical_cast.hpp>
#include "test.hpp"
using namespace libtorrent;
// test vectors from bittorrent protocol description
// http://www.bittorrent.com/protocol.html
std::string encode(entry const& e)
{
std::string ret;
bencode(std::back_inserter(ret), e);
return ret;
}
entry decode(std::string const& str)
{
return bdecode(str.begin(), str.end());
}
int test_main()
{
using namespace libtorrent;
// ** strings **
{
entry e("spam");
TEST_CHECK(encode(e) == "4:spam");
TEST_CHECK(decode(encode(e)) == e);
}
// ** integers **
{
entry e(3);
TEST_CHECK(encode(e) == "i3e");
TEST_CHECK(decode(encode(e)) == e);
}
{
entry e(-3);
TEST_CHECK(encode(e) == "i-3e");
TEST_CHECK(decode(encode(e)) == e);
}
{
entry e(int(0));
TEST_CHECK(encode(e) == "i0e");
TEST_CHECK(decode(encode(e)) == e);
}
// ** lists **
{
entry::list_type l;
l.push_back(entry("spam"));
l.push_back(entry("eggs"));
entry e(l);
TEST_CHECK(encode(e) == "l4:spam4:eggse");
TEST_CHECK(decode(encode(e)) == e);
}
// ** dictionaries **
{
entry e(entry::dictionary_t);
e["spam"] = entry("eggs");
e["cow"] = entry("moo");
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TEST_CHECK(encode(e) == "d3:cow3:moo4:spam4:eggse");
TEST_CHECK(decode(encode(e)) == e);
}
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{
char b[] = "i12453e";
lazy_entry e;
int ret = lazy_bdecode(b, b + sizeof(b)-1, e);
TORRENT_ASSERT(ret == 0);
TORRENT_ASSERT(e.type() == lazy_entry::int_t);
TORRENT_ASSERT(e.int_value() == 12453);
}
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{
char b[] = "26:abcdefghijklmnopqrstuvwxyz";
lazy_entry e;
int ret = lazy_bdecode(b, b + sizeof(b)-1, e);
TORRENT_ASSERT(ret == 0);
TORRENT_ASSERT(e.type() == lazy_entry::string_t);
TORRENT_ASSERT(e.string_value() == std::string("abcdefghijklmnopqrstuvwxyz"));
TORRENT_ASSERT(e.string_length() == 26);
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}
{
char b[] = "li12453e3:aaae";
lazy_entry e;
int ret = lazy_bdecode(b, b + sizeof(b)-1, e);
TORRENT_ASSERT(ret == 0);
TORRENT_ASSERT(e.type() == lazy_entry::list_t);
TORRENT_ASSERT(e.list_size() == 2);
TORRENT_ASSERT(e.list_at(0)->type() == lazy_entry::int_t);
TORRENT_ASSERT(e.list_at(1)->type() == lazy_entry::string_t);
TORRENT_ASSERT(e.list_at(0)->int_value() == 12453);
TORRENT_ASSERT(e.list_at(1)->string_value() == std::string("aaa"));
TORRENT_ASSERT(e.list_at(1)->string_length() == 3);
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}
{
char b[] = "d1:ai12453e1:b3:aaa1:c3:bbbe";
lazy_entry e;
int ret = lazy_bdecode(b, b + sizeof(b)-1, e);
TORRENT_ASSERT(ret == 0);
TORRENT_ASSERT(e.type() == lazy_entry::dict_t);
TORRENT_ASSERT(e.dict_size() == 3);
TORRENT_ASSERT(e.dict_find("a")->type() == lazy_entry::int_t);
TORRENT_ASSERT(e.dict_find("a")->int_value() == 12453);
TORRENT_ASSERT(e.dict_find("b")->type() == lazy_entry::string_t);
TORRENT_ASSERT(e.dict_find("b")->string_value() == std::string("aaa"));
TORRENT_ASSERT(e.dict_find("b")->string_length() == 3);
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TORRENT_ASSERT(e.dict_find("c")->type() == lazy_entry::string_t);
TORRENT_ASSERT(e.dict_find("c")->string_value() == std::string("bbb"));
TORRENT_ASSERT(e.dict_find("c")->string_length() == 3);
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}
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return 0;
}