| /* |
| * 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.ignite.internal.metrics; |
| |
| import static org.junit.jupiter.api.Assertions.assertEquals; |
| import static org.junit.jupiter.api.Assertions.assertThrows; |
| |
| import java.util.List; |
| import org.junit.jupiter.api.Test; |
| |
| /** |
| * Test for {@link DistributionMetric}. |
| */ |
| public class DistributionMetricTest { |
| /** |
| * Check that calling constructor with invalid parameters causes errors. |
| */ |
| @Test |
| public void creationTest() { |
| assertThrows(Throwable.class, () -> new DistributionMetric("test", null, null)); |
| assertThrows(AssertionError.class, () -> new DistributionMetric("test", null, new long[0])); |
| assertThrows(AssertionError.class, () -> new DistributionMetric("test", null, new long[] { 10, 1})); |
| assertThrows(AssertionError.class, () -> new DistributionMetric("test", null, new long[] { 1, 10, 10, 100})); |
| assertThrows(AssertionError.class, () -> new DistributionMetric("test", null, new long[] { -1, 1, 10, 100})); |
| } |
| |
| /** |
| * Create a distribution metric and fill it with some values. |
| * |
| * @return Metric. |
| */ |
| private DistributionMetric createAndPrepareMetric() { |
| long[] bounds = new long[] {50, 500}; |
| |
| DistributionMetric distribution = new DistributionMetric("distribution", null, bounds); |
| |
| assertEquals(bounds.length + 1, distribution.value().length); |
| |
| distribution.add(10); |
| distribution.add(51); |
| distribution.add(60); |
| distribution.add(600); |
| distribution.add(600); |
| distribution.add(600); |
| |
| return distribution; |
| } |
| |
| /** |
| * Check that the values in distribution buckets are correct. |
| */ |
| @Test |
| public void testBucketValues() { |
| DistributionMetric distribution = createAndPrepareMetric(); |
| |
| distribution.value(); |
| |
| assertEquals(1, distribution.value()[0]); |
| assertEquals(2, distribution.value()[1]); |
| assertEquals(3, distribution.value()[2]); |
| } |
| |
| /** |
| * Test scalar metrics that are returned by {@link DistributionMetric#asScalarMetrics()}. |
| */ |
| @Test |
| public void testScalarMetrics() { |
| DistributionMetric distribution = createAndPrepareMetric(); |
| |
| List<Metric> scalarMetrics = distribution.asScalarMetrics(); |
| |
| assertEquals("distribution_0_50", scalarMetrics.get(0).name()); |
| assertEquals("distribution_50_500", scalarMetrics.get(1).name()); |
| assertEquals("distribution_500_inf", scalarMetrics.get(2).name()); |
| |
| for (int i = 0; i < scalarMetrics.size(); i++) { |
| LongMetric lm = (LongMetric) scalarMetrics.get(i); |
| assertEquals(i + 1, lm.value()); |
| } |
| |
| distribution.add(1); |
| distribution.add(100); |
| distribution.add(1000); |
| |
| for (int i = 0; i < scalarMetrics.size(); i++) { |
| LongMetric lm = (LongMetric) scalarMetrics.get(i); |
| assertEquals(i + 2, lm.value()); |
| } |
| } |
| |
| /** |
| * Test the correctness of {@link DistributionMetric#getValueAsString()}. |
| */ |
| @Test |
| public void testGetValueAsString() { |
| DistributionMetric distribution = createAndPrepareMetric(); |
| |
| assertEquals("[distribution_0_50:1, distribution_50_500:2, distribution_500_inf:3]", distribution.getValueAsString()); |
| } |
| } |