/*
* 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.contract;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import static org.apache.hadoop.fs.contract.ContractTestUtils.createFile;
import static org.apache.hadoop.fs.contract.ContractTestUtils.dataset;
/**
* This class does things to the root directory.
* Only subclass this for tests against transient filesystems where
* you don't care about the data.
*/
public abstract class AbstractContractRootDirectoryTest extends AbstractFSContractTestBase {
private static final Logger LOG =
LoggerFactory.getLogger(AbstractContractRootDirectoryTest.class);
@Override
public void setup() throws Exception {
super.setup();
skipIfUnsupported(TEST_ROOT_TESTS_ENABLED);
}
@Test
public void testMkDirDepth1() throws Throwable {
FileSystem fs = getFileSystem();
Path dir = new Path("/testmkdirdepth1");
assertPathDoesNotExist("directory already exists", dir);
fs.mkdirs(dir);
ContractTestUtils.assertIsDirectory(getFileSystem(), dir);
assertPathExists("directory already exists", dir);
assertDeleted(dir, true);
}
@Test
public void testRmEmptyRootDirNonRecursive() throws Throwable {
//extra sanity checks here to avoid support calls about complete loss of data
skipIfUnsupported(TEST_ROOT_TESTS_ENABLED);
Path root = new Path("/");
ContractTestUtils.assertIsDirectory(getFileSystem(), root);
boolean deleted = getFileSystem().delete(root, true);
LOG.info("rm / of empty dir result is {}", deleted);
ContractTestUtils.assertIsDirectory(getFileSystem(), root);
}
@Test
public void testRmNonEmptyRootDirNonRecursive() throws Throwable {
//extra sanity checks here to avoid support calls about complete loss of data
skipIfUnsupported(TEST_ROOT_TESTS_ENABLED);
Path root = new Path("/");
String touchfile = "/testRmNonEmptyRootDirNonRecursive";
Path file = new Path(touchfile);
ContractTestUtils.touch(getFileSystem(), file);
ContractTestUtils.assertIsDirectory(getFileSystem(), root);
try {
boolean deleted = getFileSystem().delete(root, false);
fail("non recursive delete should have raised an exception," +
" but completed with exit code " + deleted);
} catch (IOException e) {
//expected
handleExpectedException(e);
} finally {
getFileSystem().delete(file, false);
}
ContractTestUtils.assertIsDirectory(getFileSystem(), root);
}
@Test
public void testRmRootRecursive() throws Throwable {
//extra sanity checks here to avoid support calls about complete loss of data
skipIfUnsupported(TEST_ROOT_TESTS_ENABLED);
Path root = new Path("/");
ContractTestUtils.assertIsDirectory(getFileSystem(), root);
Path file = new Path("/testRmRootRecursive");
ContractTestUtils.touch(getFileSystem(), file);
boolean deleted = getFileSystem().delete(root, true);
ContractTestUtils.assertIsDirectory(getFileSystem(), root);
LOG.info("rm -rf / result is {}", deleted);
if (deleted) {
assertPathDoesNotExist("expected file to be deleted", file);
} else {
assertPathExists("expected file to be preserved", file);;
}
}
@Test
public void testCreateFileOverRoot() throws Throwable {
Path root = new Path("/");
byte[] dataset = dataset(1024, ' ', 'z');
try {
createFile(getFileSystem(), root, false, dataset);
fail("expected an exception, got a file created over root: " + ls(root));
} catch (IOException e) {
//expected
handleExpectedException(e);
}
assertIsDirectory(root);
}
}