| /** |
| * 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.fs; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.nio.file.FileAlreadyExistsException; |
| |
| import org.apache.hadoop.test.GenericTestUtils; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| public class TestFileUtilsMkDir { |
| |
| private static final File TEST_DIR = GenericTestUtils.getTestDir("nm"); |
| private final File del = new File(TEST_DIR, "del"); |
| |
| @Before |
| public void before() { |
| cleanupImpl(); |
| } |
| |
| @After |
| public void tearDown() { |
| cleanupImpl(); |
| } |
| |
| private void cleanupImpl() { |
| FileUtil.fullyDelete(del, true); |
| Assert.assertTrue(!del.exists()); |
| } |
| |
| /** |
| * This test validates the correctness of {@link FileUtil#mkDirs(String)} in |
| * case of null pointer inputs. |
| * |
| * @throws IOException |
| */ |
| @Test |
| public void testMkDirsWithNullInput() throws IOException { |
| int result = FileUtil.mkDirs(null); |
| Assert.assertEquals(1, result); |
| } |
| |
| /** |
| * This test validates the correctness of {@link FileUtil#mkDirs(String)}. |
| * |
| * @throws IOException |
| */ |
| @Test |
| public void testMkDirs() throws IOException { |
| Assert.assertFalse(del.exists()); |
| del.mkdirs(); |
| |
| File directory = new File(del, "newDirectory"); |
| Assert.assertFalse(directory.exists()); |
| |
| // Create the directory |
| int result = FileUtil.mkDirs(directory.getAbsolutePath()); |
| Assert.assertEquals(0, result); |
| |
| Assert.assertTrue(directory.exists()); |
| Assert.assertTrue(directory.isDirectory()); |
| |
| directory.delete(); |
| } |
| |
| /** |
| * This test validates the correctness of {@link FileUtil#mkDirs(String)} in |
| * case of multiple parents. |
| * |
| * @throws IOException |
| */ |
| @Test |
| public void testMkDirsMultipleParents() throws IOException { |
| Assert.assertFalse(del.exists()); |
| del.mkdirs(); |
| |
| File directory = new File(del, "newParent1/newParent2/newDirectory"); |
| Assert.assertFalse(directory.exists()); |
| |
| // Create the directory |
| int result = FileUtil.mkDirs(directory.getAbsolutePath()); |
| Assert.assertEquals(0, result); |
| |
| Assert.assertTrue(directory.exists()); |
| Assert.assertTrue(directory.isDirectory()); |
| |
| Assert.assertTrue(directory.getParentFile().exists()); |
| Assert.assertTrue(directory.getParentFile().isDirectory()); |
| |
| Assert.assertTrue(directory.getParentFile().getParentFile().exists()); |
| Assert.assertTrue(directory.getParentFile().getParentFile().isDirectory()); |
| |
| directory.getParentFile().getParentFile().delete(); |
| directory.getParentFile().delete(); |
| directory.delete(); |
| } |
| |
| /** |
| * This test validates the correctness of {@link FileUtil#mkDirs(String)} in |
| * case of multiple same executions of MkDir. |
| * |
| * @throws IOException |
| */ |
| @Test |
| public void testMkDirsMultipleTimes() throws IOException { |
| Assert.assertFalse(del.exists()); |
| del.mkdirs(); |
| |
| File directory = new File(del, "newDirectory"); |
| Assert.assertFalse(directory.exists()); |
| |
| // Create the directory |
| int result = FileUtil.mkDirs(directory.getAbsolutePath()); |
| Assert.assertEquals(0, result); |
| |
| Assert.assertTrue(directory.exists()); |
| Assert.assertTrue(directory.isDirectory()); |
| |
| result = FileUtil.mkDirs(directory.getAbsolutePath()); |
| Assert.assertEquals(0, result); |
| |
| directory.delete(); |
| } |
| |
| /** |
| * This test validates the correctness of {@link FileUtil#mkDirs(String)} in |
| * case of a creation over a file. |
| * |
| * @throws IOException |
| */ |
| @Test |
| public void testMkDirsOverAFile() throws IOException { |
| Assert.assertFalse(del.exists()); |
| del.mkdirs(); |
| |
| File falseDirectory = new File(del, "newDirectory"); |
| Assert.assertFalse(falseDirectory.exists()); |
| |
| byte[] data = "some data".getBytes(); |
| |
| // write some data to the file |
| FileOutputStream os = new FileOutputStream(falseDirectory); |
| os.write(data); |
| os.close(); |
| |
| // Create the directory |
| try { |
| FileUtil.mkDirs(falseDirectory.getAbsolutePath()); |
| Assert.fail("The test should fail with FileAlreadyExistsException"); |
| } catch (FileAlreadyExistsException e) { |
| Assert.assertTrue(e.getMessage().startsWith( |
| "Can not create a directory since a file is already present")); |
| } |
| } |
| |
| /** |
| * This test validates the correctness of {@link FileUtil#mkDirs(String)} in |
| * case of a creation underneath a file. |
| * |
| * @throws IOException |
| */ |
| @Test |
| public void testMkDirsUnderNeathAFile() throws IOException { |
| Assert.assertFalse(del.exists()); |
| del.mkdirs(); |
| |
| File newFile = new File(del, "newFile"); |
| Assert.assertFalse(newFile.exists()); |
| |
| byte[] data = "some data".getBytes(); |
| |
| // write some data to the file |
| FileOutputStream os = new FileOutputStream(newFile); |
| os.write(data); |
| os.close(); |
| |
| File falseDirectory = new File(del, "newFile/newDirectory"); |
| |
| // Create the directory |
| int result = FileUtil.mkDirs(falseDirectory.getAbsolutePath()); |
| Assert.assertEquals(1, result); |
| |
| Assert.assertFalse(falseDirectory.exists()); |
| } |
| } |