| /** |
| * 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.cassandra.io.util; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.RandomAccessFile; |
| import java.nio.charset.Charset; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.Arrays; |
| |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| public class FileUtilsTest |
| { |
| |
| @BeforeClass |
| public static void setupDD() |
| { |
| DatabaseDescriptor.daemonInitialization(); |
| } |
| |
| @Test |
| public void testTruncate() throws IOException |
| { |
| File file = FileUtils.createTempFile("testTruncate", "1"); |
| final String expected = "The quick brown fox jumps over the lazy dog"; |
| |
| Files.write(file.toPath(), expected.getBytes()); |
| assertTrue(file.exists()); |
| |
| byte[] b = Files.readAllBytes(file.toPath()); |
| assertEquals(expected, new String(b, Charset.forName("UTF-8"))); |
| |
| FileUtils.truncate(file.getAbsolutePath(), 10); |
| b = Files.readAllBytes(file.toPath()); |
| assertEquals("The quick ", new String(b, Charset.forName("UTF-8"))); |
| |
| FileUtils.truncate(file.getAbsolutePath(), 0); |
| b = Files.readAllBytes(file.toPath()); |
| assertEquals(0, b.length); |
| } |
| |
| @Test |
| public void testFolderSize() throws Exception |
| { |
| File folder = createFolder(Paths.get(DatabaseDescriptor.getAllDataFileLocations()[0], "testFolderSize")); |
| folder.deleteOnExit(); |
| |
| File childFolder = createFolder(Paths.get(folder.getPath(), "child")); |
| |
| File[] files = { |
| createFile(new File(folder, "001"), 10000), |
| createFile(new File(folder, "002"), 1000), |
| createFile(new File(folder, "003"), 100), |
| createFile(new File(childFolder, "001"), 1000), |
| createFile(new File(childFolder, "002"), 2000), |
| }; |
| |
| assertEquals(0, FileUtils.folderSize(new File(folder, "i_dont_exist"))); |
| assertEquals(files[0].length(), FileUtils.folderSize(files[0])); |
| |
| long size = FileUtils.folderSize(folder); |
| assertEquals(Arrays.stream(files).mapToLong(f -> f.length()).sum(), size); |
| } |
| |
| @Test |
| public void testIsContained() |
| { |
| assertTrue(FileUtils.isContained(new File("/tmp/abc"), new File("/tmp/abc"))); |
| assertFalse(FileUtils.isContained(new File("/tmp/abc"), new File("/tmp/abcd"))); |
| assertTrue(FileUtils.isContained(new File("/tmp/abc"), new File("/tmp/abc/d"))); |
| assertTrue(FileUtils.isContained(new File("/tmp/abc/../abc"), new File("/tmp/abc/d"))); |
| assertFalse(FileUtils.isContained(new File("/tmp/abc/../abc"), new File("/tmp/abcc"))); |
| } |
| |
| private File createFolder(Path path) |
| { |
| File folder = path.toFile(); |
| FileUtils.createDirectory(folder); |
| return folder; |
| } |
| |
| private File createFile(File file, long size) |
| { |
| try (RandomAccessFile f = new RandomAccessFile(file, "rw")) |
| { |
| f.setLength(size); |
| } |
| catch (Exception e) |
| { |
| System.err.println(e); |
| } |
| return file; |
| } |
| } |