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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2013-2023 Regents of the University of California.
*
* This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
*
* ndn-cxx library 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.
*
* ndn-cxx library 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 copies of the GNU General Public License and GNU Lesser
* General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
* <http://www.gnu.org/licenses/>.
*
* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
*/
#include "ndn-cxx/net/dns.hpp"
#include "tests/boost-test.hpp"
#include "tests/unit/net/network-configuration-detector.hpp"
#include <boost/asio/io_context.hpp>
namespace ndn::tests {
using namespace ndn::dns;
namespace ip = boost::asio::ip;
class DnsFixture
{
public:
void
onSuccess(const boost::asio::ip::address& resolvedAddress,
const boost::asio::ip::address& expectedAddress,
bool isValid,
bool shouldCheckAddress = false)
{
++m_nSuccesses;
if (!isValid) {
BOOST_ERROR("Resolved to " + resolvedAddress.to_string() + ", but should have failed");
}
BOOST_CHECK_EQUAL(resolvedAddress.is_v4(), expectedAddress.is_v4());
// checking address is not deterministic and should be enabled only
// if only one IP address will be returned by resolution
if (shouldCheckAddress) {
BOOST_CHECK_EQUAL(resolvedAddress, expectedAddress);
}
}
void
onFailure(bool shouldFail)
{
++m_nFailures;
BOOST_CHECK_MESSAGE(shouldFail, "Resolution should not have failed");
}
protected:
int m_nFailures = 0;
int m_nSuccesses = 0;
boost::asio::io_context m_ioCtx;
};
BOOST_AUTO_TEST_SUITE(Net)
BOOST_FIXTURE_TEST_SUITE(TestDns, DnsFixture)
BOOST_AUTO_TEST_CASE(Failure)
{
SKIP_IF_IP_UNAVAILABLE();
asyncResolve("nothost.nothost.nothost.arpa",
std::bind(&DnsFixture::onSuccess, this, _1, ip::address_v4(), false, false),
[this] (auto&&...) { onFailure(true); },
m_ioCtx); // should fail
m_ioCtx.run();
BOOST_CHECK_EQUAL(m_nFailures, 1);
BOOST_CHECK_EQUAL(m_nSuccesses, 0);
}
BOOST_AUTO_TEST_CASE(Ipv4)
{
SKIP_IF_IPV4_UNAVAILABLE();
asyncResolve("192.0.2.1",
std::bind(&DnsFixture::onSuccess, this, _1, ip::make_address_v4("192.0.2.1"), true, true),
[this] (auto&&...) { onFailure(false); },
m_ioCtx);
m_ioCtx.run();
BOOST_CHECK_EQUAL(m_nFailures, 0);
BOOST_CHECK_EQUAL(m_nSuccesses, 1);
}
BOOST_AUTO_TEST_CASE(Ipv6)
{
SKIP_IF_IPV6_UNAVAILABLE();
asyncResolve("ipv6.google.com", // only IPv6 address should be available
std::bind(&DnsFixture::onSuccess, this, _1, ip::address_v6(), true, false),
[this] (auto&&...) { onFailure(false); },
m_ioCtx);
asyncResolve("2001:db8:3f9:0:3025:ccc5:eeeb:86d3",
std::bind(&DnsFixture::onSuccess, this, _1,
ip::make_address_v6("2001:db8:3f9:0:3025:ccc5:eeeb:86d3"), true, true),
[this] (auto&&...) { onFailure(false); },
m_ioCtx);
m_ioCtx.run();
BOOST_CHECK_EQUAL(m_nFailures, 0);
BOOST_CHECK_EQUAL(m_nSuccesses, 2);
}
BOOST_AUTO_TEST_CASE(WithAddressSelector)
{
SKIP_IF_IPV4_UNAVAILABLE();
SKIP_IF_IPV6_UNAVAILABLE();
asyncResolve("named-data.net",
std::bind(&DnsFixture::onSuccess, this, _1, ip::address_v4(), true, false),
[this] (auto&&...) { onFailure(false); },
m_ioCtx, Ipv4Only());
asyncResolve("a.root-servers.net",
std::bind(&DnsFixture::onSuccess, this, _1, ip::address_v4(), true, false),
[this] (auto&&...) { onFailure(false); },
m_ioCtx, Ipv4Only()); // request IPv4 address
asyncResolve("a.root-servers.net",
std::bind(&DnsFixture::onSuccess, this, _1, ip::address_v6(), true, false),
[this] (auto&&...) { onFailure(false); },
m_ioCtx, Ipv6Only()); // request IPv6 address
asyncResolve("ipv6.google.com", // only IPv6 address should be available
std::bind(&DnsFixture::onSuccess, this, _1, ip::address_v6(), true, false),
[this] (auto&&...) { onFailure(false); },
m_ioCtx, Ipv6Only());
asyncResolve("ipv6.google.com", // only IPv6 address should be available
std::bind(&DnsFixture::onSuccess, this, _1, ip::address_v6(), false, false),
[this] (auto&&...) { onFailure(true); },
m_ioCtx, Ipv4Only()); // should fail
m_ioCtx.run();
BOOST_CHECK_EQUAL(m_nFailures, 1);
BOOST_CHECK_EQUAL(m_nSuccesses, 4);
}
BOOST_AUTO_TEST_SUITE_END() // TestDns
BOOST_AUTO_TEST_SUITE_END() // Net
} // namespace ndn::tests