/**
 * 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.
 */

#include "mongo/platform/basic.h"

#include "mongo/db/ftdc/util.h"
#include "mongo/unittest/unittest.h"

namespace mongo {

void checkTime(int expected, int now_time, int period) {
    ASSERT_TRUE(Date_t::fromMillisSinceEpoch(expected) ==
                FTDCUtil::roundTime(Date_t::fromMillisSinceEpoch(now_time), Milliseconds(period)));
}

// Validate time rounding
TEST(FTDCUtilTest, TestRoundTime) {
    checkTime(4, 3, 1);
    checkTime(7, 3, 7);
    checkTime(14, 8, 7);
    checkTime(14, 13, 7);
}

// Validate the MongoS FTDC path is computed correctly from a log file path.
TEST(FTDCUtilTest, TestMongoSPath) {

    std::vector<std::pair<std::string, std::string>> testCases = {
        {"/var/log/mongos.log", "/var/log/mongos.diagnostic.data"},
        {"/var/log/mongos.foo.log", "/var/log/mongos.diagnostic.data"},
        {"/var/log/log_file", "/var/log/log_file.diagnostic.data"},
        {"./mongos.log", "./mongos.diagnostic.data"},
        {"../mongos.log", "../mongos.diagnostic.data"},
        {"c:\\var\\log\\mongos.log", "c:\\var\\log\\mongos.diagnostic.data"},
        {"c:\\var\\log\\mongos.foo.log", "c:\\var\\log\\mongos.diagnostic.data"},
        {"c:\\var\\log\\log_file", "c:\\var\\log\\log_file.diagnostic.data"},
        {"/var/some.log/mongos.log", "/var/some.log/mongos.diagnostic.data"},
        {"/var/some.log/log_file", "/var/some.log/log_file.diagnostic.data"},
    };

    for (const auto& p : testCases) {
        ASSERT_EQUALS(FTDCUtil::getMongoSPath(p.first), p.second);
    }
}

}  // namespace mongo
