| /** |
| * 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.heron.packing.builder; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import org.apache.heron.common.basics.ByteAmount; |
| import org.apache.heron.packing.exceptions.ResourceExceededException; |
| import org.apache.heron.spi.packing.Resource; |
| import org.apache.heron.spi.utils.PackingTestUtils; |
| |
| import static org.junit.Assert.assertArrayEquals; |
| import static org.junit.Assert.assertEquals; |
| |
| /** |
| * Tests scorers. Testing multiple scorers from a single test since the tests are so simple. |
| */ |
| public class ScorerTest { |
| private Container[] testContainers; |
| |
| @Before |
| public void init() throws ResourceExceededException { |
| Resource containerCapacity |
| = new Resource(1000, ByteAmount.fromGigabytes(100), ByteAmount.fromGigabytes(100)); |
| testContainers = new Container[] { |
| new Container(1, containerCapacity, 0), |
| new Container(3, containerCapacity, 0), |
| new Container(4, containerCapacity, 0), |
| }; |
| |
| addInstance(testContainers[0], "A", 0); |
| addInstance(testContainers[0], "A", 1); |
| addInstance(testContainers[0], "B", 2); |
| addInstance(testContainers[0], "B", 3); |
| addInstance(testContainers[1], "A", 4); |
| addInstance(testContainers[1], "B", 5); |
| addInstance(testContainers[1], "B", 6); |
| addInstance(testContainers[2], "A", 7); |
| addInstance(testContainers[2], "A", 8); |
| } |
| |
| @Test |
| public void testHomogeneityScorer() { |
| assertScores( |
| new double[] {.5, 1.0 / 3, 1}, false, new HomogeneityScorer("A", false), testContainers); |
| assertScores( |
| new double[] {.5, 2.0 / 3, 0}, false, new HomogeneityScorer("B", false), testContainers); |
| } |
| |
| @Test |
| public void testHomogeneityScorerBinary() { |
| assertScores(new double[] {0, 0, 1}, false, new HomogeneityScorer("A", true), testContainers); |
| } |
| |
| @Test |
| public void testContainerIdScorer() { |
| assertScores(new double[] {1, 3, 4}, true, new ContainerIdScorer(), testContainers); |
| assertScores(new double[] {1, 3, 4}, false, new ContainerIdScorer(false), testContainers); |
| } |
| |
| @Test |
| public void testContainerIdScorerFromId() { |
| assertScores(new double[] {5, 0, 1}, true, new ContainerIdScorer(3, 4), testContainers); |
| } |
| |
| @Test |
| public void testInstanceCountScorer() { |
| assertScores(new double[] {4, 3, 2}, true, new InstanceCountScorer(), testContainers); |
| } |
| |
| private static void addInstance(Container container, |
| String componentName, |
| int taskId) throws ResourceExceededException { |
| container.add(PackingTestUtils.testInstancePlan(componentName, taskId)); |
| } |
| |
| private static void assertScores(double[] expectedScores, boolean expectedAscending, |
| Scorer<Container> scorer, Container... containers) { |
| double[] results = new double[containers.length]; |
| int i = 0; |
| for (Container container: containers) { |
| results[i++] = scorer.getScore(container); |
| } |
| assertArrayEquals(expectedScores, results, 0.001); |
| assertEquals(expectedAscending, scorer.sortAscending()); |
| } |
| } |