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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.metrics.simple;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
import java.util.Collection;
import java.util.Map.Entry;
import java.util.concurrent.TimeUnit;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import com.yahoo.metrics.simple.jdisc.JdiscMetricsFactory;
import com.yahoo.metrics.simple.jdisc.SimpleMetricConsumer;
/**
* Functional test for simple metric implementation.
*
* @author Steinar Knutsen
*/
public class MetricsTest extends UnitTestSetup {
SimpleMetricConsumer metricApi;
@BeforeEach
public void setUp() throws Exception {
super.init();
metricApi = (SimpleMetricConsumer) new JdiscMetricsFactory(metricManager.get()).newInstance();
}
@AfterEach
public void tearDown() throws Exception {
super.fini();
}
@Test
final void smokeTest() throws InterruptedException {
final String metricName = "testMetric";
metricApi.set(metricName, 1.0d, null);
updater.gotData.await(10, TimeUnit.SECONDS);
Bucket s = getUpdatedSnapshot();
Collection<Entry<Point, UntypedMetric>> values = s.getValuesForMetric(metricName);
assertEquals(1, values.size());
Entry<Point, UntypedMetric> value = values.iterator().next();
assertEquals(Point.emptyPoint(), value.getKey());
assertEquals(1.0d, value.getValue().getLast(), 0.0d); // using number exactly expressible as doubles
assertEquals(1L, value.getValue().getCount());
}
@Test
final void testRedefinition() {
MetricReceiver r = metricManager.get();
final String metricName = "gah";
r.addMetricDefinition(metricName, new MetricSettings.Builder().build());
r.addMetricDefinition(metricName, new MetricSettings.Builder().histogram(true).build());
assertTrue(r.getMetricDefinition(metricName).isHistogram());
}
}
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