| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.geode.perftest.yardstick.hdrhistogram; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| import java.util.Collection; |
| import java.util.function.Consumer; |
| |
| import org.HdrHistogram.Histogram; |
| import org.assertj.core.api.Assertions; |
| import org.junit.jupiter.api.BeforeEach; |
| import org.junit.jupiter.api.Test; |
| import org.yardstickframework.BenchmarkProbePoint; |
| |
| public class HdrHistogramProbeTest { |
| |
| private HdrHistogramProbe probe; |
| private Clock clock; |
| |
| @BeforeEach |
| public void setUp() { |
| clock = mock(Clock.class); |
| @SuppressWarnings("unchecked") |
| final Consumer<Histogram> consumer = mock(Consumer.class); |
| probe = new HdrHistogramProbe(1, 3_600_000, 3, clock, consumer); |
| } |
| |
| @Test |
| public void recordsASingleValue() { |
| probe.start(8); |
| when(clock.currentTimeNanos()).thenReturn(0L); |
| probe.beforeExecute(1); |
| when(clock.currentTimeNanos()).thenReturn(2L); |
| probe.afterExecute(1); |
| |
| Histogram histogram = probe.getHistogram(); |
| assertEquals(2, histogram.getMaxValue()); |
| System.out.println("Size=" + histogram.getEstimatedFootprintInBytes()); |
| } |
| |
| @Test |
| public void recordsFromMultipleThreads() { |
| probe.start(3); |
| |
| when(clock.currentTimeNanos()).thenReturn(0L); |
| probe.beforeExecute(0); |
| |
| when(clock.currentTimeNanos()).thenReturn(1L); |
| probe.beforeExecute(2); |
| |
| when(clock.currentTimeNanos()).thenReturn(1L); |
| probe.beforeExecute(1); |
| |
| when(clock.currentTimeNanos()).thenReturn(3L); |
| probe.afterExecute(2); |
| |
| when(clock.currentTimeNanos()).thenReturn(3L); |
| probe.afterExecute(1); |
| |
| when(clock.currentTimeNanos()).thenReturn(4L); |
| probe.afterExecute(0); |
| |
| assertEquals(4, probe.getHistogram().getMaxValue()); |
| assertEquals(8.0 / 3.0, probe.getHistogram().getMean(), 0.01); |
| } |
| |
| @Test |
| public void generatesASummaryBenchmarkPoint() { |
| probe.start(1); |
| when(clock.currentTimeNanos()).thenReturn(0L); |
| probe.beforeExecute(0); |
| when(clock.currentTimeNanos()).thenReturn(2L); |
| probe.afterExecute(0); |
| probe.beforeExecute(0); |
| when(clock.currentTimeNanos()).thenReturn(6L); |
| probe.afterExecute(0); |
| when(clock.currentTimeNanos()).thenReturn(8L); |
| |
| probe.stop(); |
| |
| Collection<BenchmarkProbePoint> points = probe.points(); |
| assertEquals(1, points.size()); |
| BenchmarkProbePoint point = points.iterator().next(); |
| |
| assertEquals(probe.getHistogram().getStartTimeStamp(), point.time()); |
| Assertions.assertThat(point.values()).containsExactly(3.0, 4.0); |
| } |
| } |