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.metrics;
019
020import static org.junit.jupiter.api.Assertions.assertEquals;
021import static org.junit.jupiter.api.Assertions.assertNull;
022
023import org.apache.hadoop.hbase.testclassification.MetricsTests;
024import org.apache.hadoop.hbase.testclassification.SmallTests;
025import org.apache.hadoop.metrics2.lib.MutableFastCounter;
026import org.apache.hadoop.metrics2.lib.MutableGaugeLong;
027import org.junit.jupiter.api.BeforeAll;
028import org.junit.jupiter.api.Tag;
029import org.junit.jupiter.api.Test;
030
031/**
032 * Test of default BaseSource for hadoop 2
033 */
034@Tag(MetricsTests.TAG)
035@Tag(SmallTests.TAG)
036public class TestBaseSourceImpl {
037
038  private static BaseSourceImpl bmsi;
039
040  @BeforeAll
041  public static void setUp() throws Exception {
042    bmsi = new BaseSourceImpl("TestName", "test description", "testcontext", "TestContext");
043  }
044
045  @Test
046  public void testSetGauge() throws Exception {
047    bmsi.setGauge("testset", 100);
048    assertEquals(100, ((MutableGaugeLong) bmsi.metricsRegistry.get("testset")).value());
049    bmsi.setGauge("testset", 300);
050    assertEquals(300, ((MutableGaugeLong) bmsi.metricsRegistry.get("testset")).value());
051
052  }
053
054  @Test
055  public void testIncGauge() throws Exception {
056    bmsi.incGauge("testincgauge", 100);
057    assertEquals(100, ((MutableGaugeLong) bmsi.metricsRegistry.get("testincgauge")).value());
058    bmsi.incGauge("testincgauge", 100);
059    assertEquals(200, ((MutableGaugeLong) bmsi.metricsRegistry.get("testincgauge")).value());
060
061  }
062
063  @Test
064  public void testDecGauge() throws Exception {
065    bmsi.decGauge("testdec", 100);
066    assertEquals(-100, ((MutableGaugeLong) bmsi.metricsRegistry.get("testdec")).value());
067    bmsi.decGauge("testdec", 100);
068    assertEquals(-200, ((MutableGaugeLong) bmsi.metricsRegistry.get("testdec")).value());
069
070  }
071
072  @Test
073  public void testIncCounters() throws Exception {
074    bmsi.incCounters("testinccounter", 100);
075    assertEquals(100, ((MutableFastCounter) bmsi.metricsRegistry.get("testinccounter")).value());
076    bmsi.incCounters("testinccounter", 100);
077    assertEquals(200, ((MutableFastCounter) bmsi.metricsRegistry.get("testinccounter")).value());
078
079  }
080
081  @Test
082  public void testRemoveMetric() throws Exception {
083    bmsi.setGauge("testrmgauge", 100);
084    bmsi.removeMetric("testrmgauge");
085    assertNull(bmsi.metricsRegistry.get("testrmgauge"));
086  }
087}