/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.internal.metrics.metricsets;
import com.hazelcast.internal.metrics.LongGauge;
import com.hazelcast.internal.metrics.impl.MetricsRegistryImpl;
import com.hazelcast.logging.Logger;
import com.hazelcast.test.AssertTask;
import com.hazelcast.test.HazelcastSerialClassRunner;
import com.hazelcast.test.HazelcastTestSupport;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.lang.management.ClassLoadingMXBean;
import java.lang.management.ManagementFactory;
import static com.hazelcast.internal.metrics.ProbeLevel.INFO;
import static org.junit.Assert.assertEquals;
@RunWith(HazelcastSerialClassRunner.class)
@Category(QuickTest.class)
public class ClassLoadingMetricSetTest extends HazelcastTestSupport {
private static final ClassLoadingMXBean BEAN = ManagementFactory.getClassLoadingMXBean();
private MetricsRegistryImpl metricsRegistry;
@Before
public void setup() {
metricsRegistry = new MetricsRegistryImpl(Logger.getLogger(MetricsRegistryImpl.class), INFO);
ClassLoadingMetricSet.register(metricsRegistry);
}
@Test
public void utilityConstructor() {
assertUtilityConstructor(ClassLoadingMetricSet.class);
}
@Test
public void loadedClassesCount() {
final LongGauge gauge = metricsRegistry.newLongGauge("classloading.loadedClassesCount");
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(BEAN.getLoadedClassCount(), gauge.read(), 100);
}
});
}
@Test
public void totalLoadedClassesCount() {
final LongGauge gauge = metricsRegistry.newLongGauge("classloading.totalLoadedClassesCount");
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(BEAN.getTotalLoadedClassCount(), gauge.read(), 100);
}
});
}
@Test
public void unloadedClassCount() {
final LongGauge gauge = metricsRegistry.newLongGauge("classloading.unloadedClassCount");
assertTrueEventually(new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(BEAN.getUnloadedClassCount(), gauge.read(), 100);
}
});
}
}