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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.container.jdisc.metric;
import com.yahoo.jdisc.Metric;
import com.yahoo.jdisc.statistics.ContainerWatchdogMetrics;
import org.junit.jupiter.api.Test;
import java.lang.management.ManagementFactory;
import java.time.Duration;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
/**
* @author bjorncs
*/
public class MetricUpdaterTest {
@Test
void metrics_are_updated_in_scheduler_cycle() {
int gcCount = ManagementFactory.getGarbageCollectorMXBeans().size();
Metric metric = mock(Metric.class);
ContainerWatchdogMetrics containerWatchdogMetrics = mock(ContainerWatchdogMetrics.class);
new MetricUpdater(new MockScheduler(), metric, containerWatchdogMetrics);
verify(containerWatchdogMetrics, times(1)).emitMetrics(any());
verify(metric, times(14 + 2 * gcCount)).set(anyString(), any(), any());
}
private static class MockScheduler implements MetricUpdater.Scheduler {
@Override
public void schedule(Runnable runnable, Duration frequency) {
runnable.run();
}
@Override
public void cancel() {}
}
}
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