| /* |
| * 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.beam.sdk.extensions.sorter; |
| |
| import static org.junit.Assert.fail; |
| |
| import java.io.IOException; |
| import java.nio.file.FileVisitResult; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.SimpleFileVisitor; |
| import java.nio.file.attribute.BasicFileAttributes; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for Sorter. */ |
| @RunWith(JUnit4.class) |
| public class ExternalSorterTest { |
| @Rule public ExpectedException thrown = ExpectedException.none(); |
| private static Path tmpLocation; |
| |
| @BeforeClass |
| public static void setupTempDir() throws IOException { |
| tmpLocation = Files.createTempDirectory("tmp"); |
| } |
| |
| @AfterClass |
| public static void cleanupTempDir() throws IOException { |
| Files.walkFileTree( |
| tmpLocation, |
| new SimpleFileVisitor<Path>() { |
| @Override |
| public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) |
| throws IOException { |
| Files.delete(file); |
| return FileVisitResult.CONTINUE; |
| } |
| |
| @Override |
| public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException { |
| Files.delete(dir); |
| return FileVisitResult.CONTINUE; |
| } |
| }); |
| } |
| |
| @Test |
| public void testEmpty() throws Exception { |
| SorterTestUtils.testEmpty( |
| ExternalSorter.create( |
| new ExternalSorter.Options().setTempLocation(tmpLocation.toString()))); |
| } |
| |
| @Test |
| public void testSingleElement() throws Exception { |
| SorterTestUtils.testSingleElement( |
| ExternalSorter.create( |
| new ExternalSorter.Options().setTempLocation(tmpLocation.toString()))); |
| } |
| |
| @Test |
| public void testEmptyKeyValueElement() throws Exception { |
| SorterTestUtils.testEmptyKeyValueElement( |
| ExternalSorter.create( |
| new ExternalSorter.Options().setTempLocation(tmpLocation.toString()))); |
| } |
| |
| @Test |
| public void testMultipleIterations() throws Exception { |
| SorterTestUtils.testMultipleIterations( |
| ExternalSorter.create( |
| new ExternalSorter.Options().setTempLocation(tmpLocation.toString()))); |
| } |
| |
| @Test |
| public void testRandom() throws Exception { |
| SorterTestUtils.testRandom( |
| () -> |
| ExternalSorter.create( |
| new ExternalSorter.Options().setTempLocation(tmpLocation.toString())), |
| 1, |
| 1000000); |
| } |
| |
| @Test |
| public void testAddAfterSort() throws Exception { |
| SorterTestUtils.testAddAfterSort( |
| ExternalSorter.create(new ExternalSorter.Options().setTempLocation(tmpLocation.toString())), |
| thrown); |
| fail(); |
| } |
| |
| @Test |
| public void testSortTwice() throws Exception { |
| SorterTestUtils.testSortTwice( |
| ExternalSorter.create(new ExternalSorter.Options().setTempLocation(tmpLocation.toString())), |
| thrown); |
| fail(); |
| } |
| |
| @Test |
| public void testNegativeMemory() { |
| thrown.expect(IllegalArgumentException.class); |
| thrown.expectMessage("memoryMB must be greater than zero"); |
| ExternalSorter.Options options = new ExternalSorter.Options(); |
| options.setMemoryMB(-1); |
| } |
| |
| @Test |
| public void testZeroMemory() { |
| thrown.expect(IllegalArgumentException.class); |
| thrown.expectMessage("memoryMB must be greater than zero"); |
| ExternalSorter.Options options = new ExternalSorter.Options(); |
| options.setMemoryMB(0); |
| } |
| |
| @Test |
| public void testMemoryTooLarge() { |
| thrown.expect(IllegalArgumentException.class); |
| thrown.expectMessage("memoryMB must be less than 2048"); |
| ExternalSorter.Options options = new ExternalSorter.Options(); |
| options.setMemoryMB(2048); |
| } |
| } |