67 lines
2.4 KiB
Java
67 lines
2.4 KiB
Java
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package com.baeldung.timer;
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import com.jayway.awaitility.Awaitility;
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import org.hamcrest.Matchers;
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import org.jboss.arquillian.container.test.api.Deployment;
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import org.jboss.arquillian.junit.Arquillian;
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import org.jboss.shrinkwrap.api.ShrinkWrap;
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import org.jboss.shrinkwrap.api.spec.WebArchive;
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import org.jboss.shrinkwrap.resolver.api.maven.Maven;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import javax.inject.Inject;
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import java.io.File;
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import java.util.concurrent.TimeUnit;
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import static com.jayway.awaitility.Awaitility.await;
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import static com.jayway.awaitility.Awaitility.to;
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import static org.hamcrest.MatcherAssert.assertThat;
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import static org.hamcrest.Matchers.equalTo;
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@RunWith(Arquillian.class)
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public class AutomaticTimerBeanTest {
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//the @AutomaticTimerBean has a method called every 10 seconds
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//testing the difference ==> 100000
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final static long TIMEOUT = 10000l;
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//the tolerance accepted , so if between two consecutive calls there has to be at least 9 or max 11 seconds.
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//because the timer service is not intended for real-time applications so it will not be exactly 10 seconds
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final static long TOLERANCE = 1000l;
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@Inject
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TimerEventListener timerEventListener;
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@Deployment
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public static WebArchive deploy() {
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File[] jars = Maven.resolver().loadPomFromFile("pom.xml")
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.resolve("com.jayway.awaitility:awaitility")
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.withTransitivity().asFile();
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//only @AutomaticTimerBean is deployed not the other timers
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return ShrinkWrap.create(WebArchive.class)
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.addAsLibraries(jars)
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.addClasses(WithinWindowMatcher.class, TimerEvent.class, TimerEventListener.class, AutomaticTimerBean.class);
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}
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@Test
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public void should_receive_two_pings() {
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Awaitility.setDefaultTimeout(30, TimeUnit.SECONDS);
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//the test will wait here until two events are triggered
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await().untilCall(to(timerEventListener.getEvents()).size(), equalTo(2));
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TimerEvent firstEvent = timerEventListener.getEvents().get(0);
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TimerEvent secondEvent = timerEventListener.getEvents().get(1);
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long delay = secondEvent.getTime() - firstEvent.getTime();
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System.out.println("Actual timeout = " + delay);
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//ensure that the delay between the events is more or less 10 seconds (no real time precision)
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assertThat(delay, Matchers.is(WithinWindowMatcher.withinWindow(TIMEOUT, TOLERANCE)));
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}
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}
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