Java tutorial
/* * 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.carbondata.core.carbon.datastorage.filesystem; import mockit.Mock; import mockit.MockUp; import org.apache.carbondata.core.datastorage.store.filesystem.AlluxioCarbonFile; import org.apache.carbondata.core.datastorage.store.filesystem.CarbonFile; import org.apache.carbondata.core.datastorage.store.filesystem.CarbonFileFilter; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.FileStatus; import org.apache.hadoop.fs.FileSystem; import org.apache.hadoop.fs.Options; import org.apache.hadoop.fs.Path; import org.apache.hadoop.hdfs.DistributedFileSystem; import org.apache.hadoop.hdfs.web.WebHdfsFileSystem; import org.junit.AfterClass; import org.junit.BeforeClass; import org.junit.Test; import java.io.File; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.IOException; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertTrue; public class AlluxioCarbonFileTest { private static AlluxioCarbonFile alluxioCarbonFile; private static FileStatus fileStatus; private static FileStatus fileStatusWithOutDirectoryPermission; private static String fileName; private static File file; @BeforeClass static public void setUp() { file = new File("Test.carbondata"); if (!file.exists()) try { file.createNewFile(); } catch (IOException e) { e.printStackTrace(); } try { FileOutputStream oFile = new FileOutputStream(file, true); } catch (FileNotFoundException e) { e.printStackTrace(); } fileStatus = new FileStatus(12L, true, 60, 120l, 180L, new Path(file.getAbsolutePath())); fileStatusWithOutDirectoryPermission = new FileStatus(12L, false, 60, 120l, 180L, new Path(file.getAbsolutePath())); fileName = file.getAbsolutePath(); alluxioCarbonFile = new AlluxioCarbonFile(fileStatus); } @AfterClass static public void cleanUp() { file.delete(); } @Test public void testRenameForceForException() throws IOException { new MockUp<Path>() { @Mock public FileSystem getFileSystem(Configuration conf) throws IOException { throw new IOException(); } }; alluxioCarbonFile = new AlluxioCarbonFile(fileStatus); alluxioCarbonFile.renameForce(fileName); } @Test public void testListFilesWithOutDirectoryPermission() { alluxioCarbonFile = new AlluxioCarbonFile(fileStatusWithOutDirectoryPermission); assertTrue(alluxioCarbonFile.listFiles() == null); } @Test public void testConstructorWithFilePath() { alluxioCarbonFile = new AlluxioCarbonFile(file.getAbsolutePath()); assertTrue(alluxioCarbonFile instanceof AlluxioCarbonFile); } @Test public void testListFilesForNullListStatus() { alluxioCarbonFile = new AlluxioCarbonFile(fileStatusWithOutDirectoryPermission); new MockUp<Path>() { @Mock public FileSystem getFileSystem(Configuration conf) throws IOException { return new DistributedFileSystem(); } }; new MockUp<DistributedFileSystem>() { @Mock public FileStatus[] listStatus(Path var1) throws IOException { return null; } }; alluxioCarbonFile = new AlluxioCarbonFile(fileStatus); assertTrue(alluxioCarbonFile.listFiles().length == 0); } @Test public void testListDirectory() { alluxioCarbonFile = new AlluxioCarbonFile(fileStatus); new MockUp<Path>() { @Mock public FileSystem getFileSystem(Configuration conf) throws IOException { return new DistributedFileSystem(); } }; new MockUp<DistributedFileSystem>() { @Mock public FileStatus[] listStatus(Path var1) throws IOException { FileStatus[] fileStatus = new FileStatus[] { new FileStatus(12L, true, 60, 120l, 180L, new Path(fileName)) }; return fileStatus; } }; assertTrue(alluxioCarbonFile.listFiles().length == 1); } @Test public void testListFilesForException() throws IOException { alluxioCarbonFile = new AlluxioCarbonFile(fileStatusWithOutDirectoryPermission); new MockUp<FileStatus>() { @Mock public Path getPath() { return new Path(file.getAbsolutePath()); } }; new MockUp<Path>() { @Mock public FileSystem getFileSystem(Configuration conf) throws IOException { throw new IOException(); } }; new MockUp<DistributedFileSystem>() { @Mock public FileStatus[] listStatus(Path var1) throws IOException { throw new IOException(); } }; alluxioCarbonFile = new AlluxioCarbonFile(fileStatus); alluxioCarbonFile.listFiles(); } @Test public void testListFilesWithCarbonFilter() { CarbonFileFilter carbonFileFilter = new CarbonFileFilter() { @Override public boolean accept(CarbonFile file) { return true; } }; alluxioCarbonFile = new AlluxioCarbonFile(fileStatus); assertTrue(alluxioCarbonFile.listFiles(carbonFileFilter).length == 1); } @Test public void testlistFilesWithoutFilter() { CarbonFileFilter carbonFileFilter = new CarbonFileFilter() { @Override public boolean accept(CarbonFile file) { return false; } }; new MockUp<Path>() { @Mock public FileSystem getFileSystem(Configuration conf) throws IOException { return new DistributedFileSystem(); } }; new MockUp<DistributedFileSystem>() { @Mock public FileStatus[] listStatus(Path var1) throws IOException { FileStatus[] fileStatus = new FileStatus[] { new FileStatus(12L, true, 60, 120l, 180L, new Path(fileName)) }; return fileStatus; } }; alluxioCarbonFile = new AlluxioCarbonFile(fileStatus); assertTrue(alluxioCarbonFile.listFiles(carbonFileFilter).length == 0); } @Test public void testGetParentFile() { new MockUp<Path>() { @Mock public FileSystem getFileSystem(Configuration conf) throws IOException { return new DistributedFileSystem(); } }; new MockUp<Path>() { @Mock public Path getParent() { return new Path(file.getAbsolutePath()); } }; new MockUp<FileStatus>() { @Mock public Path getPath() { return new Path(file.getAbsolutePath()); } }; new MockUp<DistributedFileSystem>() { @Mock public FileStatus getFileStatus(Path path) throws IOException { return new FileStatus(12L, true, 60, 120l, 180L, new Path(file.getAbsolutePath())); } }; alluxioCarbonFile = new AlluxioCarbonFile(fileStatus); assertFalse(alluxioCarbonFile.getParentFile().equals(null)); } @Test public void testForNonDisributedSystem() { alluxioCarbonFile = new AlluxioCarbonFile(fileStatus); new MockUp<Path>() { @Mock public FileSystem getFileSystem(Configuration conf) throws IOException { return new WebHdfsFileSystem(); } }; assertFalse(alluxioCarbonFile.renameForce(fileName)); } @Test public void testrenameForceForDisributedSystem() { new MockUp<Path>() { @Mock public FileSystem getFileSystem(Configuration conf) throws IOException { return new DistributedFileSystem(); } }; new MockUp<DistributedFileSystem>() { @Mock public void rename(Path src, Path dst, final Options.Rename... options) throws IOException { } }; alluxioCarbonFile = new AlluxioCarbonFile(fileStatus); assertTrue(alluxioCarbonFile.renameForce(fileName)); } }