/**
* 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.Metric;
import com.codahale.metrics.MetricFilter;
import com.codahale.metrics.MetricRegistry;
import com.codahale.metrics.Timer;
import io.astefanutti.metrics.cdi.MetricsExtension;
import io.astefanutti.metrics.cdi.se.util.MetricsUtil;
import org.hamcrest.Matchers;
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.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import javax.inject.Inject;
import java.util.Set;
import java.util.concurrent.atomic.AtomicLong;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.everyItem;
import static org.hamcrest.Matchers.is;
import static org.junit.Assert.assertThat;
@RunWith(Arquillian.class)
public class TimedClassBeanTest {
private static final String CONSTRUCTOR_NAME = "TimedClassBean";
private static final String CONSTRUCTOR_TIMER_NAME = MetricsUtil.absoluteMetricName(TimedClassBean.class, "timedClass", CONSTRUCTOR_NAME);
private static final String[] METHOD_NAMES = {"timedMethodOne", "timedMethodTwo", "timedMethodProtected", "timedMethodPackagedPrivate"};
private static final Set<String> METHOD_TIMER_NAMES = MetricsUtil.absoluteMetricNames(TimedClassBean.class, "timedClass", METHOD_NAMES);
private static final MetricFilter METHOD_TIMERS = new MetricFilter() {
@Override
public boolean matches(String name, Metric metric) {
return METHOD_TIMER_NAMES.contains(name);
}
};
private static final Set<String> TIMER_NAMES = MetricsUtil.absoluteMetricNames(TimedClassBean.class, "timedClass", METHOD_NAMES, CONSTRUCTOR_NAME);
private static final AtomicLong METHOD_COUNT = new AtomicLong();
@Deployment
static Archive<?> createTestArchive() {
return ShrinkWrap.create(JavaArchive.class)
// Test bean
.addClass(TimedClassBean.class)
// Metrics CDI extension
.addPackage(MetricsExtension.class.getPackage())
// Bean archive deployment descriptor
.addAsManifestResource(EmptyAsset.INSTANCE, "beans.xml");
}
@Inject
private MetricRegistry registry;
@Inject
private TimedClassBean bean;
@Before
public void instantiateApplicationScopedBean() {
// Let's trigger the instantiation of the application scoped bean explicitly
// as only a proxy gets injected otherwise
bean.toString();
}
@Test
@InSequence(1)
public void timedMethodsNotCalledYet() {
assertThat("Timers are not registered correctly", registry.getTimers().keySet(), is(equalTo(TIMER_NAMES)));
assertThat("Constructor timer count is incorrect", registry.getTimers().get(CONSTRUCTOR_TIMER_NAME).getCount(), is(equalTo(1L)));
// Make sure that the method timers haven't been timed yet
assertThat("Method timer counts are incorrect", registry.getTimers(METHOD_TIMERS).values(), everyItem(Matchers.<Timer>hasProperty("count", equalTo(METHOD_COUNT.get()))));
}
@Test
@InSequence(2)
public void callTimedMethodsOnce() {
assertThat("Timers are not registered correctly", registry.getTimers().keySet(), is(equalTo(TIMER_NAMES)));
assertThat("Constructor timer count is incorrect", registry.getTimers().get(CONSTRUCTOR_TIMER_NAME).getCount(), is(equalTo(1L)));
// Call the timed methods and assert they've been timed
bean.timedMethodOne();
bean.timedMethodTwo();
// Let's call the non-public methods as well
bean.timedMethodProtected();
bean.timedMethodPackagedPrivate();
// Make sure that the method timers have been timed
assertThat("Method timer counts are incorrect", registry.getTimers(METHOD_TIMERS).values(), everyItem(Matchers.<Timer>hasProperty("count", equalTo(METHOD_COUNT.incrementAndGet()))));
}
}