| /** |
| * 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.hadoop.mapreduce.v2.hs; |
| |
| import java.lang.InterruptedException; |
| import java.util.Collection; |
| |
| import org.apache.hadoop.mapreduce.v2.api.records.JobId; |
| import org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.HistoryFileInfo; |
| import org.apache.hadoop.mapreduce.v2.hs.HistoryFileManager.JobListCache; |
| import org.apache.hadoop.mapreduce.v2.util.MRBuilderUtils; |
| import org.junit.Test; |
| import org.mockito.Mockito; |
| |
| import static org.junit.Assert.*; |
| |
| public class TestJobListCache { |
| |
| @Test (timeout = 5000) |
| public void testAddExisting() { |
| JobListCache cache = new JobListCache(2, 1000); |
| |
| JobId jobId = MRBuilderUtils.newJobId(1, 1, 1); |
| HistoryFileInfo fileInfo = Mockito.mock(HistoryFileInfo.class); |
| Mockito.when(fileInfo.getJobId()).thenReturn(jobId); |
| |
| cache.addIfAbsent(fileInfo); |
| cache.addIfAbsent(fileInfo); |
| assertEquals("Incorrect number of cache entries", 1, |
| cache.values().size()); |
| } |
| |
| @Test (timeout = 5000) |
| public void testEviction() throws InterruptedException { |
| int maxSize = 2; |
| JobListCache cache = new JobListCache(maxSize, 1000); |
| |
| JobId jobId1 = MRBuilderUtils.newJobId(1, 1, 1); |
| HistoryFileInfo fileInfo1 = Mockito.mock(HistoryFileInfo.class); |
| Mockito.when(fileInfo1.getJobId()).thenReturn(jobId1); |
| |
| JobId jobId2 = MRBuilderUtils.newJobId(2, 2, 2); |
| HistoryFileInfo fileInfo2 = Mockito.mock(HistoryFileInfo.class); |
| Mockito.when(fileInfo2.getJobId()).thenReturn(jobId2); |
| |
| JobId jobId3 = MRBuilderUtils.newJobId(3, 3, 3); |
| HistoryFileInfo fileInfo3 = Mockito.mock(HistoryFileInfo.class); |
| Mockito.when(fileInfo3.getJobId()).thenReturn(jobId3); |
| |
| cache.addIfAbsent(fileInfo1); |
| cache.addIfAbsent(fileInfo2); |
| cache.addIfAbsent(fileInfo3); |
| |
| Collection <HistoryFileInfo> values; |
| for (int i = 0; i < 9; i++) { |
| values = cache.values(); |
| if (values.size() > maxSize) { |
| Thread.sleep(100); |
| } else { |
| assertFalse("fileInfo1 should have been evicted", |
| values.contains(fileInfo1)); |
| return; |
| } |
| } |
| fail("JobListCache didn't delete the extra entry"); |
| } |
| } |