/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.marmotta.kiwi.test.generator;
import org.apache.marmotta.kiwi.generator.SnowflakeIDGenerator;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.sql.SQLException;
/**
* Add file description here!
*
* @author Sebastian Schaffert (sschaffert@apache.org)
*/
public class SnowflakeTest {
private static Logger log = LoggerFactory.getLogger(SnowflakeTest.class);
private SnowflakeIDGenerator generator;
@Before
public void setup() {
generator = new SnowflakeIDGenerator(0);
}
/**
* Run test for 5 seconds and test how many ids were generated; should be more than 1000 per second
*/
@Test
public void testPerformance() throws SQLException {
long count = 0;
long start = System.currentTimeMillis();
while(System.currentTimeMillis() < start + 5000) {
long id = generator.getId();
count++;
log.trace("Generated ID: {}", id);
}
log.info("generated {} ids ({}/sec)", count, count/5);
Assert.assertTrue(count > 5000);
}
@Test
public void testNonEqual() throws SQLException {
long start = System.currentTimeMillis();
long oldid = 0;
while(System.currentTimeMillis() < start + 5000) {
long id = generator.getId();
Assert.assertNotEquals(oldid,id);
oldid = id;
}
}
}