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1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  package org.apache.hadoop.hbase.metrics;
20  
21  import org.apache.hadoop.metrics2.lib.MutableCounterLong;
22  import org.apache.hadoop.metrics2.lib.MutableFastCounter;
23  import org.apache.hadoop.metrics2.lib.MutableGaugeLong;
24  import org.junit.BeforeClass;
25  import org.junit.Test;
26  
27  import static org.junit.Assert.assertEquals;
28  import static org.junit.Assert.assertNull;
29  
30  /**
31   *  Test of default BaseSource for hadoop 2
32   */
33  public class TestBaseSourceImpl {
34  
35    private static BaseSourceImpl bmsi;
36  
37    @BeforeClass
38    public static void setUp() throws Exception {
39      bmsi = new BaseSourceImpl("TestName", "test description", "testcontext", "TestContext");
40    }
41  
42    @Test
43    public void testSetGauge() throws Exception {
44      bmsi.setGauge("testset", 100);
45      assertEquals(100, ((MutableGaugeLong) bmsi.metricsRegistry.get("testset")).value());
46      bmsi.setGauge("testset", 300);
47      assertEquals(300, ((MutableGaugeLong) bmsi.metricsRegistry.get("testset")).value());
48  
49    }
50  
51    @Test
52    public void testIncGauge() throws Exception {
53      bmsi.incGauge("testincgauge", 100);
54      assertEquals(100, ((MutableGaugeLong) bmsi.metricsRegistry.get("testincgauge")).value());
55      bmsi.incGauge("testincgauge", 100);
56      assertEquals(200, ((MutableGaugeLong) bmsi.metricsRegistry.get("testincgauge")).value());
57  
58    }
59  
60    @Test
61    public void testDecGauge() throws Exception {
62      bmsi.decGauge("testdec", 100);
63      assertEquals(-100, ((MutableGaugeLong) bmsi.metricsRegistry.get("testdec")).value());
64      bmsi.decGauge("testdec", 100);
65      assertEquals(-200, ((MutableGaugeLong) bmsi.metricsRegistry.get("testdec")).value());
66  
67    }
68  
69    @Test
70    public void testIncCounters() throws Exception {
71      bmsi.incCounters("testinccounter", 100);
72      assertEquals(100, ((MutableFastCounter) bmsi.metricsRegistry.get("testinccounter")).value());
73      bmsi.incCounters("testinccounter", 100);
74      assertEquals(200, ((MutableFastCounter) bmsi.metricsRegistry.get("testinccounter")).value());
75  
76    }
77  
78    @Test
79    public void testRemoveMetric() throws Exception {
80      bmsi.setGauge("testrmgauge", 100);
81      bmsi.removeMetric("testrmgauge");
82      assertNull(bmsi.metricsRegistry.get("testrmgauge"));
83    }
84  
85  }