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// Copyright (c) 2015-2016 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include "reverselock.h"
#include "test/test_bitcoin.h"
#include <boost/test/unit_test.hpp>
BOOST_FIXTURE_TEST_SUITE(reverselock_tests, BasicTestingSetup)
BOOST_AUTO_TEST_CASE(reverselock_basics)
{
boost::mutex mutex;
boost::unique_lock<boost::mutex> lock(mutex);
BOOST_CHECK(lock.owns_lock());
{
reverse_lock<boost::unique_lock<boost::mutex> > rlock(lock);
BOOST_CHECK(!lock.owns_lock());
}
BOOST_CHECK(lock.owns_lock());
}
BOOST_AUTO_TEST_CASE(reverselock_errors)
{
boost::mutex mutex;
boost::unique_lock<boost::mutex> lock(mutex);
// Make sure trying to reverse lock an unlocked lock fails
lock.unlock();
BOOST_CHECK(!lock.owns_lock());
bool failed = false;
try {
reverse_lock<boost::unique_lock<boost::mutex> > rlock(lock);
} catch(...) {
failed = true;
}
BOOST_CHECK(failed);
BOOST_CHECK(!lock.owns_lock());
// Locking the original lock after it has been taken by a reverse lock
// makes no sense. Ensure that the original lock no longer owns the lock
// after giving it to a reverse one.
lock.lock();
BOOST_CHECK(lock.owns_lock());
{
reverse_lock<boost::unique_lock<boost::mutex> > rlock(lock);
BOOST_CHECK(!lock.owns_lock());
}
BOOST_CHECK(failed);
BOOST_CHECK(lock.owns_lock());
}
BOOST_AUTO_TEST_SUITE_END()