/**
    *
    * 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.hadoop.hbase.util;
  
  import static org.junit.Assert.assertEquals;
  
  import org.apache.hadoop.hbase.testclassification.MiscTests;
  import org.apache.hadoop.hbase.testclassification.SmallTests;
  
  import org.junit.ClassRule;
  import org.junit.Test;
  import org.junit.experimental.categories.Category;
  
  @Category({MiscTests.class, SmallTests.class})
  public class TestLossyCounting {
  
    @Test
    public void testBucketSize() {
      LossyCounting lossyCounting = new LossyCounting(0.01);
      assertEquals(100L, lossyCounting.getBuketSize());
      LossyCounting lossyCounting2 = new LossyCounting();
      assertEquals(50L, lossyCounting2.getBuketSize());
    }
  
    @Test
    public void testAddByOne() {
      LossyCounting lossyCounting = new LossyCounting(0.01);
      for(int i = 0; i < 100; i++){
        String key = "" + i;
        lossyCounting.addByOne(key);
      }
      assertEquals(100L, lossyCounting.getDataSize());
      for(int i = 0; i < 100; i++){
        String key = "" + i;
        assertEquals(true, lossyCounting.contains(key));
      }
    }
  
    @Test
    public void testSweep1() {
      LossyCounting lossyCounting = new LossyCounting(0.01);
      for(int i = 0; i < 400; i++){
        String key = "" + i;
        lossyCounting.addByOne(key);
      }
      assertEquals(4L, lossyCounting.getCurrentTerm());
      assertEquals(0L, lossyCounting.getDataSize());
    }
  
    @Test
    public void testSweep2() {
      LossyCounting lossyCounting = new LossyCounting(0.1);
      for(int i = 0; i < 10; i++){
        String key = "" + i;
        lossyCounting.addByOne(key);
      }
      assertEquals(10L, lossyCounting.getDataSize());
      for(int i = 0; i < 10; i++){
        String key = "1";
        lossyCounting.addByOne(key);
      }
      assertEquals(1L, lossyCounting.getDataSize());
    }
  
  
  }