/*
* 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.diagnostics;
import com.hazelcast.internal.diagnostics.StoreLatencyPlugin.LatencyProbe;
import com.hazelcast.internal.diagnostics.StoreLatencyPlugin.LatencyProbeImpl;
import com.hazelcast.logging.Logger;
import com.hazelcast.spi.properties.HazelcastProperties;
import com.hazelcast.test.HazelcastParallelClassRunner;
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.util.Properties;
import static java.util.concurrent.TimeUnit.MICROSECONDS;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertSame;
@RunWith(HazelcastParallelClassRunner.class)
@Category(QuickTest.class)
public class StoreLatencyPluginTest extends AbstractDiagnosticsPluginTest {
private StoreLatencyPlugin plugin;
@Before
public void setup() {
Properties p = new Properties();
p.put(StoreLatencyPlugin.PERIOD_SECONDS, "1");
HazelcastProperties properties = new HazelcastProperties(p);
plugin = new StoreLatencyPlugin(Logger.getLogger(StoreLatencyPlugin.class), properties);
}
@Test
public void getProbe() {
LatencyProbe probe = plugin.newProbe("foo", "queue", "somemethod");
assertNotNull(probe);
}
@Test
public void getProbe_whenSameProbeRequestedMoreThanOnce() {
LatencyProbe probe1 = plugin.newProbe("foo", "queue", "somemethod");
LatencyProbe probe2 = plugin.newProbe("foo", "queue", "somemethod");
assertSame(probe1, probe2);
}
@Test
public void testMaxMicros() {
LatencyProbeImpl probe = (LatencyProbeImpl) plugin.newProbe("foo", "queue", "somemethod");
probe.recordValue(MICROSECONDS.toNanos(10));
probe.recordValue(MICROSECONDS.toNanos(1000));
probe.recordValue(MICROSECONDS.toNanos(4));
assertEquals(1000, probe.stats.maxMicros);
}
@Test
public void testCount() {
LatencyProbeImpl probe = (LatencyProbeImpl) plugin.newProbe("foo", "queue", "somemethod");
probe.recordValue(MICROSECONDS.toNanos(10));
probe.recordValue(MICROSECONDS.toNanos(10));
probe.recordValue(MICROSECONDS.toNanos(10));
assertEquals(3, probe.stats.count);
}
@Test
public void testTotalMicros() {
LatencyProbeImpl probe = (LatencyProbeImpl) plugin.newProbe("foo", "queue", "somemethod");
probe.recordValue(MICROSECONDS.toNanos(10));
probe.recordValue(MICROSECONDS.toNanos(20));
probe.recordValue(MICROSECONDS.toNanos(30));
assertEquals(60, probe.stats.totalMicros);
}
@Test
public void render() {
LatencyProbeImpl probe = (LatencyProbeImpl) plugin.newProbe("foo", "queue", "somemethod");
probe.recordValue(MICROSECONDS.toNanos(100));
probe.recordValue(MICROSECONDS.toNanos(200));
probe.recordValue(MICROSECONDS.toNanos(300));
plugin.run(logWriter);
assertContains("foo");
assertContains("queue");
assertContains("somemethod");
assertContains("count=3");
assertContains("totalTime(us)=600");
assertContains("avg(us)=200");
assertContains("max(us)=300");
assertContains("100..199us=1");
assertContains("200..399us=2");
}
}