package org.apache.cassandra.io;
/*
*
* 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.
*
*/
import org.junit.Test;
import org.apache.cassandra.io.sstable.BloomFilterTracker;
import static org.junit.Assert.assertEquals;
public class BloomFilterTrackerTest
{
@Test
public void testAddingFalsePositives()
{
BloomFilterTracker bft = new BloomFilterTracker();
assertEquals(0L, bft.getFalsePositiveCount());
assertEquals(0L, bft.getRecentFalsePositiveCount());
bft.addFalsePositive();
bft.addFalsePositive();
assertEquals(2L, bft.getFalsePositiveCount());
assertEquals(2L, bft.getRecentFalsePositiveCount());
assertEquals(0L, bft.getRecentFalsePositiveCount());
assertEquals(2L, bft.getFalsePositiveCount()); // sanity check
}
@Test
public void testAddingTruePositives()
{
BloomFilterTracker bft = new BloomFilterTracker();
assertEquals(0L, bft.getTruePositiveCount());
assertEquals(0L, bft.getRecentTruePositiveCount());
bft.addTruePositive();
bft.addTruePositive();
assertEquals(2L, bft.getTruePositiveCount());
assertEquals(2L, bft.getRecentTruePositiveCount());
assertEquals(0L, bft.getRecentTruePositiveCount());
assertEquals(2L, bft.getTruePositiveCount()); // sanity check
}
@Test
public void testAddingToOneLeavesTheOtherAlone()
{
BloomFilterTracker bft = new BloomFilterTracker();
bft.addFalsePositive();
assertEquals(0L, bft.getTruePositiveCount());
assertEquals(0L, bft.getRecentTruePositiveCount());
bft.addTruePositive();
assertEquals(1L, bft.getFalsePositiveCount());
assertEquals(1L, bft.getRecentFalsePositiveCount());
}
}