/*
 * Copyright 2014 NAVER Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.navercorp.pinpoint.common.util;

import org.junit.Assert;

import org.junit.Test;

import com.navercorp.pinpoint.common.util.TimeUtils;

/**
 * @author emeroad
 */
public class TimeUtilsTest {
    @Test
    public void testReverseCurrentTimeMillis() throws Exception {
        long currentTime = System.currentTimeMillis();
        long reverseTime = TimeUtils.reverseTimeMillis(currentTime);
        long recoveryTime = TimeUtils.recoveryTimeMillis(reverseTime);

        Assert.assertEquals(currentTime, recoveryTime);
    }

    @Test
    public void testTimeOrder() throws InterruptedException {
        long l1 = TimeUtils.reverseCurrentTimeMillis();
        Thread.sleep(5);
        long l2 = TimeUtils.reverseCurrentTimeMillis();

        Assert.assertTrue(l1 > l2);
    }

}
