jihoonson commented on a change in pull request #8038: Making optimal usage of multiple segment cache locations URL: https://github.com/apache/incubator-druid/pull/8038#discussion_r327473953
########## File path: server/src/test/java/org/apache/druid/segment/loading/StorageLocationSelectorStrategyTest.java ########## @@ -0,0 +1,111 @@ +/* + * 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.druid.segment.loading; + +import org.junit.Assert; +import org.junit.Rule; +import org.junit.Test; +import org.junit.rules.TemporaryFolder; + +import java.io.File; +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; + +public class StorageLocationSelectorStrategyTest +{ + + @Rule + public final TemporaryFolder tmpFolder = new TemporaryFolder(); + + @Test + public void testLeastBytesUsedLocationSelectorStrategy() throws Exception + { + + List<StorageLocation> storageLocations = new ArrayList<>(); + + final File localStorageFolder1 = tmpFolder.newFolder("local_storage_folder_1"); + final File localStorageFolder2 = tmpFolder.newFolder("local_storage_folder_2"); + final File localStorageFolder3 = tmpFolder.newFolder("local_storage_folder_3"); + + StorageLocation storageLocation1 = new StorageLocation(localStorageFolder1, 10000000000L, + null); + storageLocations.add(storageLocation1); + storageLocations.add(new StorageLocation(localStorageFolder2, 10000000000L, null)); + storageLocations.add(new StorageLocation(localStorageFolder3, 10000000000L, null)); + + StorageLocationSelectorStrategy leastBytesUsedStrategy = + new LeastBytesUsedStorageLocationSelectorStrategy(storageLocations); + + storageLocation1.reserve("tmp_loc1", "__seg1", 1024L); + + Iterator<StorageLocation> locations = leastBytesUsedStrategy.getLocations(); + + StorageLocation loc1 = locations.next(); + Assert.assertTrue("The next element of the iterator should point to path local_storage_folder_2", + loc1.getPath().equals(localStorageFolder2)); + + StorageLocation loc2 = locations.next(); + Assert.assertTrue("The next element of the iterator should point to path local_storage_folder_3", + loc2.getPath().equals(localStorageFolder3)); + + StorageLocation loc3 = locations.next(); + System.out.println(loc3); + Assert.assertTrue("The next element of the iterator should point to path local_storage_folder_3", Review comment: These three `assertTrue()`s can be simplified into `assertEquals()`s. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@druid.apache.org For additional commands, e-mail: commits-h...@druid.apache.org
