1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 package org.apache.hadoop.hbase.master;
20
21 import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
22 import org.apache.hadoop.hbase.master.MetricsMasterSource;
23 import org.apache.hadoop.hbase.master.MetricsMasterSourceFactory;
24 import org.apache.hadoop.hbase.master.MetricsMasterSourceImpl;
25 import org.apache.hadoop.hbase.testclassification.SmallTests;
26 import org.apache.hadoop.hbase.testclassification.MetricsTests;
27 import org.junit.Test;
28 import org.junit.experimental.categories.Category;
29
30 import static org.junit.Assert.assertSame;
31 import static org.junit.Assert.assertTrue;
32
33
34
35
36 @Category({MetricsTests.class, SmallTests.class})
37 public class TestMetricsMasterSourceImpl {
38
39 @Test
40 public void testGetInstance() throws Exception {
41 MetricsMasterSourceFactory metricsMasterSourceFactory = CompatibilitySingletonFactory
42 .getInstance(MetricsMasterSourceFactory.class);
43 MetricsMasterSource masterSource = metricsMasterSourceFactory.create(null);
44 assertTrue(masterSource instanceof MetricsMasterSourceImpl);
45 assertSame(metricsMasterSourceFactory, CompatibilitySingletonFactory.getInstance(MetricsMasterSourceFactory.class));
46 }
47
48 }