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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.hbase.testclassification.SmallTests;
22  import org.apache.hadoop.hbase.testclassification.MetricsTests;
23  import org.apache.hadoop.metrics2.lib.MutableCounterLong;
24  import org.apache.hadoop.metrics2.lib.MutableFastCounter;
25  import org.apache.hadoop.metrics2.lib.MutableGaugeLong;
26  import org.junit.BeforeClass;
27  import org.junit.Test;
28  import org.junit.experimental.categories.Category;
29  
30  import static org.junit.Assert.assertEquals;
31  import static org.junit.Assert.assertNull;
32  
33  /**
34   *  Test of default BaseSource for hadoop 2
35   */
36  @Category({MetricsTests.class, SmallTests.class})
37  public class TestBaseSourceImpl {
38  
39    private static BaseSourceImpl bmsi;
40  
41    @BeforeClass
42    public static void setUp() throws Exception {
43      bmsi = new BaseSourceImpl("TestName", "test description", "testcontext", "TestContext");
44    }
45  
46    @Test
47    public void testSetGauge() throws Exception {
48      bmsi.setGauge("testset", 100);
49      assertEquals(100, ((MutableGaugeLong) bmsi.metricsRegistry.get("testset")).value());
50      bmsi.setGauge("testset", 300);
51      assertEquals(300, ((MutableGaugeLong) bmsi.metricsRegistry.get("testset")).value());
52  
53    }
54  
55    @Test
56    public void testIncGauge() throws Exception {
57      bmsi.incGauge("testincgauge", 100);
58      assertEquals(100, ((MutableGaugeLong) bmsi.metricsRegistry.get("testincgauge")).value());
59      bmsi.incGauge("testincgauge", 100);
60      assertEquals(200, ((MutableGaugeLong) bmsi.metricsRegistry.get("testincgauge")).value());
61  
62    }
63  
64    @Test
65    public void testDecGauge() throws Exception {
66      bmsi.decGauge("testdec", 100);
67      assertEquals(-100, ((MutableGaugeLong) bmsi.metricsRegistry.get("testdec")).value());
68      bmsi.decGauge("testdec", 100);
69      assertEquals(-200, ((MutableGaugeLong) bmsi.metricsRegistry.get("testdec")).value());
70  
71    }
72  
73    @Test
74    public void testIncCounters() throws Exception {
75      bmsi.incCounters("testinccounter", 100);
76      assertEquals(100, ((MutableFastCounter) bmsi.metricsRegistry.get("testinccounter")).value());
77      bmsi.incCounters("testinccounter", 100);
78      assertEquals(200, ((MutableFastCounter) bmsi.metricsRegistry.get("testinccounter")).value());
79  
80    }
81  
82    @Test
83    public void testRemoveMetric() throws Exception {
84      bmsi.setGauge("testrmgauge", 100);
85      bmsi.removeMetric("testrmgauge");
86      assertNull(bmsi.metricsRegistry.get("testrmgauge"));
87    }
88  
89  }