001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.io;
019
020import org.apache.hadoop.hbase.CompatibilityFactory;
021import org.apache.hadoop.hbase.test.MetricsAssertHelper;
022import org.apache.hadoop.hbase.testclassification.MiscTests;
023import org.apache.hadoop.hbase.testclassification.SmallTests;
024import org.junit.jupiter.api.Tag;
025import org.junit.jupiter.api.Test;
026
027@Tag(SmallTests.TAG)
028@Tag(MiscTests.TAG)
029public class TestMetricsIO {
030
031  public MetricsAssertHelper HELPER = CompatibilityFactory.getInstance(MetricsAssertHelper.class);
032
033  @Test
034  public void testMetrics() {
035    MetricsIO metrics = new MetricsIO(new MetricsIOWrapper() {
036      @Override
037      public long getChecksumFailures() {
038        return 40;
039      }
040    });
041
042    metrics.updateFsReadTime(100);
043    metrics.updateFsReadTime(200);
044
045    metrics.updateFsPreadTime(300);
046
047    metrics.updateFsWriteTime(400);
048    metrics.updateFsWriteTime(500);
049    metrics.updateFsWriteTime(600);
050
051    HELPER.assertCounter("fsChecksumFailureCount", 40, metrics.getMetricsSource());
052
053    HELPER.assertCounter("fsReadTime_numOps", 2, metrics.getMetricsSource());
054    HELPER.assertCounter("fsPReadTime_numOps", 1, metrics.getMetricsSource());
055    HELPER.assertCounter("fsWriteTime_numOps", 3, metrics.getMetricsSource());
056  }
057}