package com.codahale.metrics.jvm;
import com.codahale.metrics.Gauge;
import org.junit.Before;
import org.junit.Test;
import java.lang.management.ClassLoadingMXBean;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
public class ClassLoadingGaugeSetTest {
private final ClassLoadingMXBean cl = mock(ClassLoadingMXBean.class);
private final ClassLoadingGaugeSet gauges = new ClassLoadingGaugeSet(cl);
@Before
public void setUp() throws Exception {
when(cl.getTotalLoadedClassCount()).thenReturn(2L);
when(cl.getUnloadedClassCount()).thenReturn(1L);
}
@Test
public void loadedGauge() throws Exception {
final Gauge gauge = (Gauge) gauges.getMetrics().get("loaded");
assertThat(gauge.getValue()).isEqualTo(2L);
}
@Test
public void unLoadedGauge() throws Exception {
final Gauge gauge = (Gauge) gauges.getMetrics().get("unloaded");
assertThat(gauge.getValue()).isEqualTo(1L);
}
}