@Test
public void testGetInstance() throws Exception {
MetricsMasterSourceFactory metricsMasterSourceFactory = CompatibilitySingletonFactory
.getInstance(MetricsMasterSourceFactory.class);
MetricsMasterSource masterSource = metricsMasterSourceFactory.create(null);
assertTrue(masterSource instanceof MetricsMasterSourceImpl);
assertSame(metricsMasterSourceFactory, CompatibilitySingletonFactory.getInstance(MetricsMasterSourceFactory.class));
}