| /* |
| * 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.kafka.streams.processor.internals.assignment; |
| |
| import org.apache.kafka.common.TopicPartition; |
| import org.apache.kafka.common.utils.Utils; |
| import org.apache.kafka.streams.processor.TaskId; |
| import org.apache.kafka.streams.state.HostInfo; |
| import org.junit.Test; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| public class AssignmentInfoTest { |
| private final List<TaskId> activeTasks = Arrays.asList( |
| new TaskId(0, 0), |
| new TaskId(0, 0), |
| new TaskId(0, 1), new TaskId(1, 0)); |
| private final Map<TaskId, Set<TopicPartition>> standbyTasks = new HashMap<TaskId, Set<TopicPartition>>() { |
| { |
| put(new TaskId(1, 1), |
| Utils.mkSet(new TopicPartition("t1", 1), new TopicPartition("t2", 1))); |
| put(new TaskId(2, 0), |
| Utils.mkSet(new TopicPartition("t3", 0), new TopicPartition("t3", 0))); |
| } |
| }; |
| private final Map<HostInfo, Set<TopicPartition>> globalAssignment = new HashMap<HostInfo, Set<TopicPartition>>() { |
| { |
| put(new HostInfo("localhost", 80), |
| Utils.mkSet(new TopicPartition("t1", 1), new TopicPartition("t3", 3))); |
| } |
| }; |
| |
| @Test |
| public void shouldUseLatestSupportedVersionByDefault() { |
| final AssignmentInfo info = new AssignmentInfo(activeTasks, standbyTasks, globalAssignment); |
| assertEquals(AssignmentInfo.LATEST_SUPPORTED_VERSION, info.version()); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void shouldThrowForUnknownVersion1() { |
| new AssignmentInfo(0, activeTasks, standbyTasks, globalAssignment, 0); |
| } |
| |
| @Test(expected = IllegalArgumentException.class) |
| public void shouldThrowForUnknownVersion2() { |
| new AssignmentInfo(AssignmentInfo.LATEST_SUPPORTED_VERSION + 1, activeTasks, standbyTasks, globalAssignment, 0); |
| } |
| |
| @Test |
| public void shouldEncodeAndDecodeVersion1() { |
| final AssignmentInfo info = new AssignmentInfo(1, activeTasks, standbyTasks, globalAssignment, 0); |
| final AssignmentInfo expectedInfo = new AssignmentInfo(1, AssignmentInfo.UNKNOWN, activeTasks, standbyTasks, Collections.<HostInfo, Set<TopicPartition>>emptyMap(), 0); |
| assertEquals(expectedInfo, AssignmentInfo.decode(info.encode())); |
| } |
| |
| @Test |
| public void shouldEncodeAndDecodeVersion2() { |
| final AssignmentInfo info = new AssignmentInfo(2, activeTasks, standbyTasks, globalAssignment, 0); |
| final AssignmentInfo expectedInfo = new AssignmentInfo(2, AssignmentInfo.UNKNOWN, activeTasks, standbyTasks, globalAssignment, 0); |
| assertEquals(expectedInfo, AssignmentInfo.decode(info.encode())); |
| } |
| |
| @Test |
| public void shouldEncodeAndDecodeVersion3() { |
| final AssignmentInfo info = new AssignmentInfo(3, activeTasks, standbyTasks, globalAssignment, 0); |
| final AssignmentInfo expectedInfo = new AssignmentInfo(3, AssignmentInfo.LATEST_SUPPORTED_VERSION, activeTasks, standbyTasks, globalAssignment, 0); |
| assertEquals(expectedInfo, AssignmentInfo.decode(info.encode())); |
| } |
| |
| @Test |
| public void shouldEncodeAndDecodeVersion4() { |
| final AssignmentInfo info = new AssignmentInfo(4, activeTasks, standbyTasks, globalAssignment, 2); |
| final AssignmentInfo expectedInfo = new AssignmentInfo(4, AssignmentInfo.LATEST_SUPPORTED_VERSION, activeTasks, standbyTasks, globalAssignment, 2); |
| assertEquals(expectedInfo, AssignmentInfo.decode(info.encode())); |
| } |
| |
| @Test |
| public void shouldEncodeAndDecodeSmallerCommonlySupportedVersion() { |
| final int usedVersion = AssignmentInfo.LATEST_SUPPORTED_VERSION - 1; |
| final int commonlySupportedVersion = AssignmentInfo.LATEST_SUPPORTED_VERSION - 1; |
| final AssignmentInfo info = new AssignmentInfo(usedVersion, commonlySupportedVersion, activeTasks, standbyTasks, globalAssignment, 0); |
| final AssignmentInfo expectedInfo = new AssignmentInfo(usedVersion, commonlySupportedVersion, activeTasks, standbyTasks, globalAssignment, 0); |
| assertEquals(expectedInfo, AssignmentInfo.decode(info.encode())); |
| } |
| } |