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/*
This file is part of cpp-ethereum.
cpp-ethereum 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.
cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file net.cpp
* @author Alex Leverington <nessence@gmail.com>
* @date 2014
*/
#include <boost/test/unit_test.hpp>
#include <libdevcore/Worker.h>
#include <libdevcrypto/Common.h>
#include <libp2p/UDP.h>
#include <libp2p/NodeTable.h>
using namespace std;
using namespace dev;
using namespace dev::p2p;
namespace ba = boost::asio;
namespace bi = ba::ip;
BOOST_AUTO_TEST_SUITE(p2p)
/**
* Only used for testing. Not useful beyond tests.
*/
class TestHost: public Worker
{
public:
TestHost(): Worker("test",0), m_io() {};
virtual ~TestHost() { m_io.stop(); stopWorking(); }
void start() { startWorking(); }
void doWork() { m_io.run(); }
void doneWorking() { m_io.reset(); m_io.poll(); m_io.reset(); }
protected:
ba::io_service m_io;
};
struct TestNodeTable: public NodeTable
{
/// Constructor
using NodeTable::NodeTable;
static std::vector<std::pair<KeyPair,unsigned>> createTestNodes(unsigned _count)
{
std::vector<std::pair<KeyPair,unsigned>> ret;
asserts(_count < 1000);
static uint16_t s_basePort = 30500;
ret.clear();
for (unsigned i = 0; i < _count; i++)
{
KeyPair k = KeyPair::create();
ret.push_back(make_pair(k,s_basePort+i));
}
return std::move(ret);
}
void pingTestNodes(std::vector<std::pair<KeyPair,unsigned>> const& _testNodes)
{
bi::address ourIp = bi::address::from_string("127.0.0.1");
for (auto& n: _testNodes)
{
ping(bi::udp::endpoint(ourIp, n.second));
this_thread::sleep_for(chrono::milliseconds(2));
}
}
void populateTestNodes(std::vector<std::pair<KeyPair,unsigned>> const& _testNodes, size_t _count = 0)
{
if (!_count)
_count = _testNodes.size();
bi::address ourIp = bi::address::from_string("127.0.0.1");
for (auto& n: _testNodes)
if (_count--)
noteNode(n.first.pub(), bi::udp::endpoint(ourIp, n.second));
else
break;
}
void reset()
{
Guard l(x_state);
for (auto& n: m_state) n.nodes.clear();
}
};
/**
* Only used for testing. Not useful beyond tests.
*/
struct TestNodeTableHost: public TestHost
{
TestNodeTableHost(unsigned _count = 8): m_alias(KeyPair::create()), nodeTable(new TestNodeTable(m_io, m_alias)), testNodes(TestNodeTable::createTestNodes(_count)) {};
~TestNodeTableHost() { m_io.stop(); stopWorking(); }
void setup() { for (auto n: testNodes) nodeTables.push_back(make_shared<TestNodeTable>(m_io,n.first,n.second)); }
void pingAll() { for (auto& t: nodeTables) t->pingTestNodes(testNodes); }
void populateAll(size_t _count = 0) { for (auto& t: nodeTables) t->populateTestNodes(testNodes, _count); }
void populate(size_t _count = 0) { nodeTable->populateTestNodes(testNodes, _count); }
KeyPair m_alias;
shared_ptr<TestNodeTable> nodeTable;
std::vector<std::pair<KeyPair,unsigned>> testNodes; // keypair and port
std::vector<shared_ptr<TestNodeTable>> nodeTables;
};
class TestUDPSocket: UDPSocketEvents, public TestHost
{
public:
TestUDPSocket(): m_socket(new UDPSocket<TestUDPSocket, 1024>(m_io, *this, 30300)) {}
void onDisconnected(UDPSocketFace*) {};
void onReceived(UDPSocketFace*, bi::udp::endpoint const&, bytesConstRef _packet) { if (_packet.toString() == "AAAA") success = true; }
shared_ptr<UDPSocket<TestUDPSocket, 1024>> m_socket;
bool success = false;
};
BOOST_AUTO_TEST_CASE(test_neighbors_packet)
{
KeyPair k = KeyPair::create();
std::vector<std::pair<KeyPair,unsigned>> testNodes(TestNodeTable::createTestNodes(16));
bi::udp::endpoint to(boost::asio::ip::address::from_string("127.0.0.1"), 30000);
Neighbors out(to);
for (auto n: testNodes)
{
Neighbors::Node node;
node.ipAddress = boost::asio::ip::address::from_string("127.0.0.1").to_string();
node.port = n.second;
node.node = n.first.pub();
out.nodes.push_back(node);
}
out.sign(k.sec());
bytesConstRef packet(out.data.data(), out.data.size());
bytesConstRef rlpBytes(packet.cropped(97, packet.size() - 97));
Neighbors in = Neighbors::fromBytesConstRef(to, rlpBytes);
int count = 0;
for (auto n: in.nodes)
{
BOOST_REQUIRE_EQUAL(testNodes[count].second, n.port);
BOOST_REQUIRE_EQUAL(testNodes[count].first.pub(), n.node);
BOOST_REQUIRE_EQUAL(sha3(testNodes[count].first.pub()), sha3(n.node));
count++;
}
}
BOOST_AUTO_TEST_CASE(test_findnode_neighbors)
{
// Executing findNode should result in a list which is serialized
// into Neighbors packet. Neighbors packet should then be deserialized
// into the same list of nearest nodes.
}
BOOST_AUTO_TEST_CASE(test_windows_template)
{
bi::udp::endpoint ep;
PingNode p(ep);
}
BOOST_AUTO_TEST_CASE(kademlia)
{
// Not yet a 'real' test.
TestNodeTableHost node(8);
node.start();
node.nodeTable->join(); // ideally, joining with empty node table logs warning we can check for
node.setup();
node.populate();
clog << "NodeTable:\n" << *node.nodeTable.get() << endl;
node.populateAll();
clog << "NodeTable:\n" << *node.nodeTable.get() << endl;
node.nodeTable->reset();
clog << "NodeTable:\n" << *node.nodeTable.get() << endl;
node.populate(1);
clog << "NodeTable:\n" << *node.nodeTable.get() << endl;
node.nodeTable->join();
this_thread::sleep_for(chrono::milliseconds(2000));
clog << "NodeTable:\n" << *node.nodeTable.get() << endl;
}
BOOST_AUTO_TEST_CASE(test_udp_once)
{
UDPDatagram d(bi::udp::endpoint(boost::asio::ip::address::from_string("127.0.0.1"), 30300), bytes({65,65,65,65}));
TestUDPSocket a; a.m_socket->connect(); a.start();
a.m_socket->send(d);
sleep(1);
BOOST_REQUIRE_EQUAL(true, a.success);
}
BOOST_AUTO_TEST_SUITE_END()
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