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19 package org.apache.hadoop.hbase.master;
20
21 import org.apache.hadoop.hbase.CompatibilitySingletonFactory;
22 import org.apache.hadoop.hbase.testclassification.SmallTests;
23 import org.junit.Test;
24 import org.junit.experimental.categories.Category;
25
26 import static org.junit.Assert.assertSame;
27 import static org.junit.Assert.assertTrue;
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32 @Category({SmallTests.class})
33 public class TestMetricsMasterProcSourceImpl {
34
35 @Test
36 public void testGetInstance() throws Exception {
37 MetricsMasterProcSourceFactory metricsMasterProcSourceFactory = CompatibilitySingletonFactory
38 .getInstance(MetricsMasterProcSourceFactory.class);
39 MetricsMasterProcSource masterProcSource = metricsMasterProcSourceFactory.create(null);
40 assertTrue(masterProcSource instanceof MetricsMasterProcSourceImpl);
41 assertSame(metricsMasterProcSourceFactory,
42 CompatibilitySingletonFactory.getInstance(MetricsMasterProcSourceFactory.class));
43 }
44
45 }