MessageIdPolicyTest.java

/**
 * Copyright (c) 2011-2012 Optimax Software Ltd.
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *  * Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *  * Neither the name of Optimax Software, ElasticInbox, nor the names
 *    of its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.elasticinbox.core.message.id;

import static org.junit.Assert.*;
import static org.hamcrest.Matchers.*;

import java.util.Date;
import java.util.UUID;

import me.prettyprint.cassandra.utils.TimeUUIDUtils;

import org.junit.Test;

import com.elasticinbox.core.message.id.MessageIdBuilder;

public class MessageIdPolicyTest
{
	@Test
	public void testSentDateMessageIdPolicy()
	{
		Date date = new Date();
		UUID uuid2;
		long ts2;

		for (int i = 0; i < 10000; i++) {
			uuid2 = new MessageIdBuilder().setSentDate(date).build();
			ts2 = TimeUUIDUtils.getTimeFromUUID(uuid2);
			assertThat(1000L, greaterThan(ts2 - date.getTime()));
		}
	}
	
	@Test
	public void testCurrentDateMessageIdPolicy()
	{
		UUID uuid;
		UUID prev = new MessageIdBuilder().build();
		long ts;

		for (int i = 0; i < 10000; i++) {
			uuid = new MessageIdBuilder().build();
			ts = TimeUUIDUtils.getTimeFromUUID(uuid);
			
			if(uuid.equals(prev))
				fail("Not unique, same as previous!");

			prev = uuid;
			
			assertThat(100L, greaterThan(System.currentTimeMillis() - ts));
		}
	}

}