/**
* Copyright © 2013 Antonin Stefanutti (antonin.stefanutti@gmail.com)
*
* 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 io.astefanutti.metrics.cdi.se;
import com.codahale.metrics.*;
import org.jboss.arquillian.container.test.api.Deployment;
import org.jboss.arquillian.junit.Arquillian;
import org.jboss.arquillian.junit.InSequence;
import org.jboss.shrinkwrap.api.Archive;
import org.jboss.shrinkwrap.api.ShrinkWrap;
import org.jboss.shrinkwrap.api.asset.EmptyAsset;
import org.jboss.shrinkwrap.api.spec.JavaArchive;
import org.junit.Test;
import org.junit.runner.RunWith;
import io.astefanutti.metrics.cdi.MetricsExtension;
import javax.inject.Inject;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.assertThat;
@RunWith(Arquillian.class)
public class MetricProducerMethodBeanTest {
private final static String CALLS_METRIC = MetricRegistry.name(MetricProducerMethodBean.class, "calls");
private final static String HITS_METRIC = MetricRegistry.name(MetricProducerMethodBean.class, "hits");
private final static String CACHE_HITS_METRIC = MetricRegistry.name(MetricProducerMethodBean.class, "cache-hits");
@Deployment
static Archive<?> createTestArchive() {
return ShrinkWrap.create(JavaArchive.class)
// Test bean
.addClass(MetricProducerMethodBean.class)
// Metrics CDI extension
.addPackage(MetricsExtension.class.getPackage())
// Bean archive deployment descriptor
.addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
}
@Inject
private MetricRegistry registry;
@Inject
private MetricProducerMethodBean bean;
@Test
@InSequence(1)
public void cachedMethodNotCalledYet() {
assertThat("Metrics are not registered correctly", registry.getMetrics(), allOf(hasKey(CALLS_METRIC), hasKey(HITS_METRIC), hasKey(CACHE_HITS_METRIC)));
Timer calls = registry.getTimers().get(CALLS_METRIC);
Meter hits = registry.getMeters().get(HITS_METRIC);
@SuppressWarnings("unchecked")
Gauge<Double> gauge = (Gauge<Double>) registry.getGauges().get(CACHE_HITS_METRIC);
assertThat("Gauge value is incorrect", gauge.getValue(), is(equalTo(((double) hits.getCount() / (double) calls.getCount()))));
}
@Test
@InSequence(2)
public void callCachedMethodMultipleTimes() {
assertThat("Metrics are not registered correctly", registry.getMetrics(), allOf(hasKey(CALLS_METRIC), hasKey(HITS_METRIC), hasKey(CACHE_HITS_METRIC)));
Timer calls = registry.getTimers().get(CALLS_METRIC);
Meter hits = registry.getMeters().get(HITS_METRIC);
@SuppressWarnings("unchecked")
Gauge<Double> gauge = (Gauge<Double>) registry.getGauges().get(CACHE_HITS_METRIC);
long count = 10 + Math.round(Math.random() * 10);
for (int i = 0; i < count; i++)
bean.cachedMethod((Math.random() < 0.5));
assertThat("Gauge value is incorrect", gauge.getValue(), is(equalTo((double) hits.getCount() / (double) calls.getCount())));
}
}