/**
 *    Copyright (C) 2015 MongoDB Inc.
 *
 *    This program is free software: you can redistribute it and/or  modify
 *    it under the terms of the GNU Affero General Public License, version 3,
 *    as published by the Free Software Foundation.
 *
 *    This program 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 Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *    As a special exception, the copyright holders give permission to link the
 *    code of portions of this program with the OpenSSL library under certain
 *    conditions as described in each individual source file and distribute
 *    linked combinations including the program with the OpenSSL library. You
 *    must comply with the GNU Affero General Public License in all respects for
 *    all of the code used other than as permitted herein. If you modify file(s)
 *    with this exception, you may extend this exception to your version of the
 *    file(s), but you are not obligated to do so. If you do not wish to do so,
 *    delete this exception statement from your version. If you delete this
 *    exception statement from all source files in the program, then also delete
 *    it in the license file.
 */

#pragma once

#include <memory>

#include "mongo/unittest/unittest.h"

#include "mongo/util/concurrency/thread_pool_interface.h"

namespace mongo {

/**
 * Test fixture for tests that require a ThreadPool backed by a NetworkInterfaceMock.
 */
class ThreadPoolTest : public unittest::Test {
protected:
    ~ThreadPoolTest() override = default;

    ThreadPoolInterface& getThreadPool() {
        return *_threadPool;
    }

    void deleteThreadPool() {
        _threadPool.reset();
    }

    /**
     * Initializes both the NetworkInterfaceMock and ThreadPool but does not start the threadPool.
     */
    void setUp() override;

    /**
     * Destroys the replication threadPool.
     *
     * Shuts down and joins the running threadPool.
     */
    void tearDown() override;

private:
    virtual std::unique_ptr<ThreadPoolInterface> makeThreadPool() = 0;

    std::unique_ptr<ThreadPoolInterface> _threadPool;
};

}  // namespace mongo
