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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2014, Regents of the University of California,
* Arizona Board of Regents,
* Colorado State University,
* University Pierre & Marie Curie, Sorbonne University,
* Washington University in St. Louis,
* Beijing Institute of Technology,
* The University of Memphis
*
* This file is part of NFD (Named Data Networking Forwarding Daemon).
* See AUTHORS.md for complete list of NFD authors and contributors.
*
* NFD 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.
*
* NFD 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
* NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
*/
#include "table/dead-nonce-list.hpp"
#include "tests/test-common.hpp"
#include "tests/limited-io.hpp"
namespace nfd {
namespace tests {
BOOST_FIXTURE_TEST_SUITE(TableDeadNonceList, BaseFixture)
BOOST_AUTO_TEST_CASE(Basic)
{
Name nameA("ndn:/A");
Name nameB("ndn:/B");
const uint32_t nonce1 = 0x53b4eaa8;
const uint32_t nonce2 = 0x1f46372b;
DeadNonceList dnl;
BOOST_CHECK_EQUAL(dnl.size(), 0);
BOOST_CHECK_EQUAL(dnl.has(nameA, nonce1), false);
dnl.add(nameA, nonce1);
BOOST_CHECK_EQUAL(dnl.size(), 1);
BOOST_CHECK_EQUAL(dnl.has(nameA, nonce1), true);
BOOST_CHECK_EQUAL(dnl.has(nameA, nonce2), false);
BOOST_CHECK_EQUAL(dnl.has(nameB, nonce1), false);
}
BOOST_AUTO_TEST_CASE(MinLifetime)
{
BOOST_CHECK_THROW(DeadNonceList dnl(time::milliseconds::zero()), std::invalid_argument);
}
/// A Fixture that periodically inserts Nonces
class PeriodicalInsertionFixture : public BaseFixture
{
protected:
PeriodicalInsertionFixture()
: dnl(LIFETIME)
, name("ndn:/N")
, addNonceBatch(0)
, addNonceInterval(LIFETIME / DeadNonceList::EXPECTED_MARK_COUNT)
{
this->addNonce();
}
~PeriodicalInsertionFixture()
{
scheduler::cancel(addNonceEvent);
}
void
setRate(size_t nNoncesPerLifetime)
{
addNonceBatch = nNoncesPerLifetime / DeadNonceList::EXPECTED_MARK_COUNT;
}
void
addNonce()
{
for (size_t i = 0; i < addNonceBatch; ++i) {
dnl.add(name, ++lastNonce);
}
scheduler::cancel(addNonceEvent); // avoid double schedules
if (addNonceInterval > time::nanoseconds::zero()) {
addNonceEvent = scheduler::schedule(addNonceInterval,
bind(&PeriodicalInsertionFixture::addNonce, this));
}
}
protected:
static const time::nanoseconds LIFETIME;
DeadNonceList dnl;
Name name;
uint32_t lastNonce;
size_t addNonceBatch;
time::nanoseconds addNonceInterval;
scheduler::EventId addNonceEvent;
};
const time::nanoseconds PeriodicalInsertionFixture::LIFETIME = time::milliseconds(200);
BOOST_FIXTURE_TEST_CASE(Lifetime, PeriodicalInsertionFixture)
{
BOOST_CHECK_EQUAL(dnl.getLifetime(), LIFETIME);
LimitedIo limitedIo;
const int RATE = DeadNonceList::INITIAL_CAPACITY / 2;
this->setRate(RATE);
limitedIo.defer(LIFETIME * 10);
Name nameC("ndn:/C");
const uint32_t nonceC = 0x25390656;
BOOST_CHECK_EQUAL(dnl.has(nameC, nonceC), false);
dnl.add(nameC, nonceC);
BOOST_CHECK_EQUAL(dnl.has(nameC, nonceC), true);
limitedIo.defer(LIFETIME / 2); // -50%, entry should exist
BOOST_CHECK_EQUAL(dnl.has(nameC, nonceC), true);
limitedIo.defer(LIFETIME); // +50%, entry should be gone
BOOST_CHECK_EQUAL(dnl.has(nameC, nonceC), false);
}
BOOST_FIXTURE_TEST_CASE(CapacityDown, PeriodicalInsertionFixture)
{
LimitedIo limitedIo;
ssize_t cap0 = dnl.m_capacity;
const int RATE = DeadNonceList::INITIAL_CAPACITY / 3;
this->setRate(RATE);
limitedIo.defer(LIFETIME * 10);
ssize_t cap1 = dnl.m_capacity;
BOOST_CHECK_LT(std::abs(cap1 - RATE), std::abs(cap0 - RATE));
}
BOOST_FIXTURE_TEST_CASE(CapacityUp, PeriodicalInsertionFixture)
{
LimitedIo limitedIo;
ssize_t cap0 = dnl.m_capacity;
const int RATE = DeadNonceList::INITIAL_CAPACITY * 3;
this->setRate(RATE);
limitedIo.defer(LIFETIME * 10);
ssize_t cap1 = dnl.m_capacity;
BOOST_CHECK_LT(std::abs(cap1 - RATE), std::abs(cap0 - RATE));
}
BOOST_AUTO_TEST_SUITE_END()
} // namespace tests
} // namespace nfd