/**
* 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.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Options.Rename;
import org.apache.hadoop.fs.permission.FsPermission;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mortbay.log.Log;
import static org.apache.hadoop.fs.FileSystemTestHelper.*;
/**
* <p>
* A collection of tests for the {@link FileSystem}.
* This test should be used for testing an instance of FileSystem
* that has been initialized to a specific default FileSystem such a
* LocalFileSystem, HDFS,S3, etc.
* </p>
* <p>
* To test a given {@link FileSystem} implementation create a subclass of this
* test and override {@link #setUp()} to initialize the <code>fSys</code>
* {@link FileSystem} instance variable.
*
* Since this a junit 4 you can also do a single setup before
* the start of any tests.
* E.g.
* @BeforeClass public static void clusterSetupAtBegining()
* @AfterClass public static void ClusterShutdownAtEnd()
* </p>
*/
public abstract class FSMainOperationsBaseTest {
private static String TEST_DIR_AAA2 = "test/hadoop2/aaa";
private static String TEST_DIR_AAA = "test/hadoop/aaa";
private static String TEST_DIR_AXA = "test/hadoop/axa";
private static String TEST_DIR_AXX = "test/hadoop/axx";
private static int numBlocks = 2;
protected static FileSystem fSys;
final private static PathFilter DEFAULT_FILTER = new PathFilter() {
public boolean accept(final Path file) {
return true;
}
};
//A test filter with returns any path containing a "b"
final private static PathFilter TEST_X_FILTER = new PathFilter() {
public boolean accept(Path file) {
if(file.getName().contains("x") || file.toString().contains("X"))
return true;
else
return false;
}
};
protected static final byte[] data = getFileData(numBlocks,
getDefaultBlockSize());
@Before
public void setUp() throws Exception {
fSys.mkdirs(getTestRootPath(fSys, "test"));
}
@After
public void tearDown() throws Exception {
fSys.delete(new Path(getAbsoluteTestRootPath(fSys), new Path("test")), true);
}
protected Path getDefaultWorkingDirectory() throws IOException {
return getTestRootPath(fSys,
"/user/" + System.getProperty("user.name")).makeQualified(
fSys.getUri(), fSys.getWorkingDirectory());
}
protected boolean renameSupported() {
return true;
}
protected IOException unwrapException(IOException e) {
return e;
}
@Test
public void testFsStatus() throws Exception {
FsStatus fsStatus = fSys.getStatus(null);
Assert.assertNotNull(fsStatus);
//used, free and capacity are non-negative longs
Assert.assertTrue(fsStatus.getUsed() >= 0);
Assert.assertTrue(fsStatus.getRemaining() >= 0);
Assert.assertTrue(fsStatus.getCapacity() >= 0);
}
@Test
public void testWorkingDirectory() throws Exception {
// First we cd to our test root
Path workDir = new Path(getAbsoluteTestRootPath(fSys), new Path("test"));
fSys.setWorkingDirectory(workDir);
Assert.assertEquals(workDir, fSys.getWorkingDirectory());
fSys.setWorkingDirectory(new Path("."));
Assert.assertEquals(workDir, fSys.getWorkingDirectory());
fSys.setWorkingDirectory(new Path(".."));
Assert.assertEquals(workDir.getParent(), fSys.getWorkingDirectory());
// cd using a relative path
// Go back to our test root
workDir = new Path(getAbsoluteTestRootPath(fSys), new Path("test"));
fSys.setWorkingDirectory(workDir);
Assert.assertEquals(workDir, fSys.getWorkingDirectory());
Path relativeDir = new Path("existingDir1");
Path absoluteDir = new Path(workDir,"existingDir1");
fSys.mkdirs(absoluteDir);
fSys.setWorkingDirectory(relativeDir);
Assert.assertEquals(absoluteDir, fSys.getWorkingDirectory());
// cd using a absolute path
absoluteDir = getTestRootPath(fSys, "test/existingDir2");
fSys.mkdirs(absoluteDir);
fSys.setWorkingDirectory(absoluteDir);
Assert.assertEquals(absoluteDir, fSys.getWorkingDirectory());
// Now open a file relative to the wd we just set above.
Path absolutePath = new Path(absoluteDir, "foo");
FileSystemTestHelper.createFile(fSys, absolutePath);
fSys.open(new Path("foo")).close();
// Now mkdir relative to the dir we cd'ed to
fSys.mkdirs(new Path("newDir"));
Assert.assertTrue(isDir(fSys, new Path(absoluteDir, "newDir")));
/**
* We cannot test this because FileSystem has never checked for
* existence of working dir - fixing this would break compatibility,
*
absoluteDir = getTestRootPath(fSys, "nonexistingPath");
try {
fSys.setWorkingDirectory(absoluteDir);
Assert.fail("cd to non existing dir should have failed");
} catch (Exception e) {
// Exception as expected
}
*/
}
// Try a URI
@Test
public void testWDAbsolute() throws IOException {
Path absoluteDir = new Path(fSys.getUri() + "/test/existingDir");
fSys.mkdirs(absoluteDir);
fSys.setWorkingDirectory(absoluteDir);
Assert.assertEquals(absoluteDir, fSys.getWorkingDirectory());
}
@Test
public void testMkdirs() throws Exception {
Path testDir = getTestRootPath(fSys, "test/hadoop");
Assert.assertFalse(exists(fSys, testDir));
Assert.assertFalse(isFile(fSys, testDir));
fSys.mkdirs(testDir);
Assert.assertTrue(exists(fSys, testDir));
Assert.assertFalse(isFile(fSys, testDir));
fSys.mkdirs(testDir);
Assert.assertTrue(exists(fSys, testDir));
Assert.assertFalse(isFile(fSys, testDir));
Path parentDir = testDir.getParent();
Assert.assertTrue(exists(fSys, parentDir));
Assert.assertFalse(isFile(fSys, parentDir));
Path grandparentDir = parentDir.getParent();
Assert.assertTrue(exists(fSys, grandparentDir));
Assert.assertFalse(isFile(fSys, grandparentDir));
}
@Test
public void testMkdirsFailsForSubdirectoryOfExistingFile() throws Exception {
Path testDir = getTestRootPath(fSys, "test/hadoop");
Assert.assertFalse(exists(fSys, testDir));
fSys.mkdirs(testDir);
Assert.assertTrue(exists(fSys, testDir));
createFile(getTestRootPath(fSys, "test/hadoop/file"));
Path testSubDir = getTestRootPath(fSys, "test/hadoop/file/subdir");
try {
fSys.mkdirs(testSubDir);
Assert.fail("Should throw IOException.");
} catch (IOException e) {
// expected
}
Assert.assertFalse(exists(fSys, testSubDir));
Path testDeepSubDir = getTestRootPath(fSys, "test/hadoop/file/deep/sub/dir");
try {
fSys.mkdirs(testDeepSubDir);
Assert.fail("Should throw IOException.");
} catch (IOException e) {
// expected
}
Assert.assertFalse(exists(fSys, testDeepSubDir));
}
@Test
public void testGetFileStatusThrowsExceptionForNonExistentFile()
throws Exception {
try {
fSys.getFileStatus(getTestRootPath(fSys, "test/hadoop/file"));
Assert.fail("Should throw FileNotFoundException");
} catch (FileNotFoundException e) {
// expected
}
}
@Test
public void testListStatusThrowsExceptionForNonExistentFile()
throws Exception {
try {
fSys.listStatus(getTestRootPath(fSys, "test/hadoop/file"));
Assert.fail("Should throw FileNotFoundException");
} catch (FileNotFoundException fnfe) {
// expected
}
}
// TODO: update after fixing HADOOP-7352
@Test
public void testListStatusThrowsExceptionForUnreadableDir()
throws Exception {
Path testRootDir = getTestRootPath(fSys, "test/hadoop/dir");
Path obscuredDir = new Path(testRootDir, "foo");
Path subDir = new Path(obscuredDir, "bar"); //so foo is non-empty
fSys.mkdirs(subDir);
fSys.setPermission(obscuredDir, new FsPermission((short)0)); //no access
try {
fSys.listStatus(obscuredDir);
Assert.fail("Should throw IOException");
} catch (IOException ioe) {
// expected
} finally {
// make sure the test directory can be deleted
fSys.setPermission(obscuredDir, new FsPermission((short)0755)); //default
}
}
@Test
public void testListStatus() throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, "test/hadoop/a"),
getTestRootPath(fSys, "test/hadoop/b"),
getTestRootPath(fSys, "test/hadoop/c/1"), };
Assert.assertFalse(exists(fSys, testDirs[0]));
for (Path path : testDirs) {
fSys.mkdirs(path);
}
// test listStatus that returns an array
FileStatus[] paths = fSys.listStatus(getTestRootPath(fSys, "test"));
Assert.assertEquals(1, paths.length);
Assert.assertEquals(getTestRootPath(fSys, "test/hadoop"), paths[0].getPath());
paths = fSys.listStatus(getTestRootPath(fSys, "test/hadoop"));
Assert.assertEquals(3, paths.length);
Assert.assertTrue(containsPath(getTestRootPath(fSys, "test/hadoop/a"),
paths));
Assert.assertTrue(containsPath(getTestRootPath(fSys, "test/hadoop/b"),
paths));
Assert.assertTrue(containsPath(getTestRootPath(fSys, "test/hadoop/c"),
paths));
paths = fSys.listStatus(getTestRootPath(fSys, "test/hadoop/a"));
Assert.assertEquals(0, paths.length);
}
@Test
public void testListStatusFilterWithNoMatches() throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA2),
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
// listStatus with filters returns empty correctly
FileStatus[] filteredPaths = fSys.listStatus(
getTestRootPath(fSys, "test"), TEST_X_FILTER);
Assert.assertEquals(0,filteredPaths.length);
}
@Test
public void testListStatusFilterWithSomeMatches() throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX),
getTestRootPath(fSys, TEST_DIR_AAA2), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
// should return 2 paths ("/test/hadoop/axa" and "/test/hadoop/axx")
FileStatus[] filteredPaths = fSys.listStatus(
getTestRootPath(fSys, "test/hadoop"), TEST_X_FILTER);
Assert.assertEquals(2,filteredPaths.length);
Assert.assertTrue(containsPath(getTestRootPath(fSys,
TEST_DIR_AXA), filteredPaths));
Assert.assertTrue(containsPath(getTestRootPath(fSys,
TEST_DIR_AXX), filteredPaths));
}
@Test
public void testGlobStatusThrowsExceptionForNonExistentFile() throws Exception {
try {
// This should throw a FileNotFoundException
fSys.globStatus(
getTestRootPath(fSys, "test/hadoopfsdf/?"));
Assert.fail("Should throw FileNotFoundException");
} catch (FileNotFoundException fnfe) {
// expected
}
}
@Test
public void testGlobStatusWithNoMatchesInPath() throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX),
getTestRootPath(fSys, TEST_DIR_AAA2), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
// should return nothing
FileStatus[] paths = fSys.globStatus(
getTestRootPath(fSys, "test/hadoop/?"));
Assert.assertEquals(0, paths.length);
}
@Test
public void testGlobStatusSomeMatchesInDirectories() throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX),
getTestRootPath(fSys, TEST_DIR_AAA2), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
// Should return two items ("/test/hadoop" and "/test/hadoop2")
FileStatus[] paths = fSys.globStatus(
getTestRootPath(fSys, "test/hadoop*"));
Assert.assertEquals(2, paths.length);
Assert.assertTrue(containsPath(getTestRootPath(fSys,
"test/hadoop"), paths));
Assert.assertTrue(containsPath(getTestRootPath(fSys,
"test/hadoop2"), paths));
}
@Test
public void testGlobStatusWithMultipleWildCardMatches() throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX),
getTestRootPath(fSys, TEST_DIR_AAA2), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
//Should return all 4 items ("/test/hadoop/aaa", "/test/hadoop/axa"
//"/test/hadoop/axx", and "/test/hadoop2/axx")
FileStatus[] paths = fSys.globStatus(
getTestRootPath(fSys, "test/hadoop*/*"));
Assert.assertEquals(4, paths.length);
Assert.assertTrue(containsPath(getTestRootPath(fSys, TEST_DIR_AAA), paths));
Assert.assertTrue(containsPath(getTestRootPath(fSys, TEST_DIR_AXA), paths));
Assert.assertTrue(containsPath(getTestRootPath(fSys, TEST_DIR_AXX), paths));
Assert.assertTrue(containsPath(getTestRootPath(fSys, TEST_DIR_AAA2), paths));
}
@Test
public void testGlobStatusWithMultipleMatchesOfSingleChar() throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX),
getTestRootPath(fSys, TEST_DIR_AAA2), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
//Should return only 2 items ("/test/hadoop/axa", "/test/hadoop/axx")
FileStatus[] paths = fSys.globStatus(
getTestRootPath(fSys, "test/hadoop/ax?"));
Assert.assertEquals(2, paths.length);
Assert.assertTrue(containsPath(getTestRootPath(fSys,
TEST_DIR_AXA), paths));
Assert.assertTrue(containsPath(getTestRootPath(fSys,
TEST_DIR_AXX), paths));
}
@Test
public void testGlobStatusFilterWithEmptyPathResults() throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX),
getTestRootPath(fSys, TEST_DIR_AXX), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
//This should return an empty set
FileStatus[] filteredPaths = fSys.globStatus(
getTestRootPath(fSys, "test/hadoop/?"),
DEFAULT_FILTER);
Assert.assertEquals(0,filteredPaths.length);
}
@Test
public void testGlobStatusFilterWithSomePathMatchesAndTrivialFilter()
throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX),
getTestRootPath(fSys, TEST_DIR_AXX), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
//This should return all three (aaa, axa, axx)
FileStatus[] filteredPaths = fSys.globStatus(
getTestRootPath(fSys, "test/hadoop/*"),
DEFAULT_FILTER);
Assert.assertEquals(3, filteredPaths.length);
Assert.assertTrue(containsPath(getTestRootPath(fSys,
TEST_DIR_AAA), filteredPaths));
Assert.assertTrue(containsPath(getTestRootPath(fSys,
TEST_DIR_AXA), filteredPaths));
Assert.assertTrue(containsPath(getTestRootPath(fSys,
TEST_DIR_AXX), filteredPaths));
}
@Test
public void testGlobStatusFilterWithMultipleWildCardMatchesAndTrivialFilter()
throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX),
getTestRootPath(fSys, TEST_DIR_AXX), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
//This should return all three (aaa, axa, axx)
FileStatus[] filteredPaths = fSys.globStatus(
getTestRootPath(fSys, "test/hadoop/a??"),
DEFAULT_FILTER);
Assert.assertEquals(3, filteredPaths.length);
Assert.assertTrue(containsPath(getTestRootPath(fSys, TEST_DIR_AAA),
filteredPaths));
Assert.assertTrue(containsPath(getTestRootPath(fSys, TEST_DIR_AXA),
filteredPaths));
Assert.assertTrue(containsPath(getTestRootPath(fSys, TEST_DIR_AXX),
filteredPaths));
}
@Test
public void testGlobStatusFilterWithMultiplePathMatchesAndNonTrivialFilter()
throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX),
getTestRootPath(fSys, TEST_DIR_AXX), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
//This should return two (axa, axx)
FileStatus[] filteredPaths = fSys.globStatus(
getTestRootPath(fSys, "test/hadoop/*"),
TEST_X_FILTER);
Assert.assertEquals(2, filteredPaths.length);
Assert.assertTrue(containsPath(getTestRootPath(fSys,
TEST_DIR_AXA), filteredPaths));
Assert.assertTrue(containsPath(getTestRootPath(fSys,
TEST_DIR_AXX), filteredPaths));
}
@Test
public void testGlobStatusFilterWithNoMatchingPathsAndNonTrivialFilter()
throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX),
getTestRootPath(fSys, TEST_DIR_AXX), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
//This should return an empty set
FileStatus[] filteredPaths = fSys.globStatus(
getTestRootPath(fSys, "test/hadoop/?"),
TEST_X_FILTER);
Assert.assertEquals(0,filteredPaths.length);
}
@Test
public void testGlobStatusFilterWithMultiplePathWildcardsAndNonTrivialFilter()
throws Exception {
Path[] testDirs = {
getTestRootPath(fSys, TEST_DIR_AAA),
getTestRootPath(fSys, TEST_DIR_AXA),
getTestRootPath(fSys, TEST_DIR_AXX),
getTestRootPath(fSys, TEST_DIR_AXX), };
if (exists(fSys, testDirs[0]) == false) {
for (Path path : testDirs) {
fSys.mkdirs(path);
}
}
//This should return two (axa, axx)
FileStatus[] filteredPaths = fSys.globStatus(
getTestRootPath(fSys, "test/hadoop/a??"),
TEST_X_FILTER);
Assert.assertEquals(2, filteredPaths.length);
Assert.assertTrue(containsPath(getTestRootPath(fSys, TEST_DIR_AXA),
filteredPaths));
Assert.assertTrue(containsPath(getTestRootPath(fSys, TEST_DIR_AXX),
filteredPaths));
}
@Test
public void testWriteReadAndDeleteEmptyFile() throws Exception {
writeReadAndDelete(0);
}
@Test
public void testWriteReadAndDeleteHalfABlock() throws Exception {
writeReadAndDelete(getDefaultBlockSize() / 2);
}
@Test
public void testWriteReadAndDeleteOneBlock() throws Exception {
writeReadAndDelete(getDefaultBlockSize());
}
@Test
public void testWriteReadAndDeleteOneAndAHalfBlocks() throws Exception {
int blockSize = getDefaultBlockSize();
writeReadAndDelete(blockSize + (blockSize / 2));
}
@Test
public void testWriteReadAndDeleteTwoBlocks() throws Exception {
writeReadAndDelete(getDefaultBlockSize() * 2);
}
protected void writeReadAndDelete(int len) throws IOException {
Path path = getTestRootPath(fSys, "test/hadoop/file");
fSys.mkdirs(path.getParent());
FSDataOutputStream out =
fSys.create(path, false, 4096, (short) 1, getDefaultBlockSize() );
out.write(data, 0, len);
out.close();
Assert.assertTrue("Exists", exists(fSys, path));
Assert.assertEquals("Length", len, fSys.getFileStatus(path).getLen());
FSDataInputStream in = fSys.open(path);
byte[] buf = new byte[len];
in.readFully(0, buf);
in.close();
Assert.assertEquals(len, buf.length);
for (int i = 0; i < buf.length; i++) {
Assert.assertEquals("Position " + i, data[i], buf[i]);
}
Assert.assertTrue("Deleted", fSys.delete(path, false));
Assert.assertFalse("No longer exists", exists(fSys, path));
}
@Test
public void testOverwrite() throws IOException {
Path path = getTestRootPath(fSys, "test/hadoop/file");
fSys.mkdirs(path.getParent());
createFile(path);
Assert.assertTrue("Exists", exists(fSys, path));
Assert.assertEquals("Length", data.length, fSys.getFileStatus(path).getLen());
try {
createFile(path);
Assert.fail("Should throw IOException.");
} catch (IOException e) {
// Expected
}
FSDataOutputStream out = fSys.create(path, true, 4096);
out.write(data, 0, data.length);
out.close();
Assert.assertTrue("Exists", exists(fSys, path));
Assert.assertEquals("Length", data.length, fSys.getFileStatus(path).getLen());
}
@Test
public void testWriteInNonExistentDirectory() throws IOException {
Path path = getTestRootPath(fSys, "test/hadoop/file");
Assert.assertFalse("Parent doesn't exist", exists(fSys, path.getParent()));
createFile(path);
Assert.assertTrue("Exists", exists(fSys, path));
Assert.assertEquals("Length", data.length, fSys.getFileStatus(path).getLen());
Assert.assertTrue("Parent exists", exists(fSys, path.getParent()));
}
@Test
public void testDeleteNonExistentFile() throws IOException {
Path path = getTestRootPath(fSys, "test/hadoop/file");
Assert.assertFalse("Doesn't exist", exists(fSys, path));
Assert.assertFalse("No deletion", fSys.delete(path, true));
}
@Test
public void testDeleteRecursively() throws IOException {
Path dir = getTestRootPath(fSys, "test/hadoop");
Path file = getTestRootPath(fSys, "test/hadoop/file");
Path subdir = getTestRootPath(fSys, "test/hadoop/subdir");
createFile(file);
fSys.mkdirs(subdir);
Assert.assertTrue("File exists", exists(fSys, file));
Assert.assertTrue("Dir exists", exists(fSys, dir));
Assert.assertTrue("Subdir exists", exists(fSys, subdir));
try {
fSys.delete(dir, false);
Assert.fail("Should throw IOException.");
} catch (IOException e) {
// expected
}
Assert.assertTrue("File still exists", exists(fSys, file));
Assert.assertTrue("Dir still exists", exists(fSys, dir));
Assert.assertTrue("Subdir still exists", exists(fSys, subdir));
Assert.assertTrue("Deleted", fSys.delete(dir, true));
Assert.assertFalse("File doesn't exist", exists(fSys, file));
Assert.assertFalse("Dir doesn't exist", exists(fSys, dir));
Assert.assertFalse("Subdir doesn't exist", exists(fSys, subdir));
}
@Test
public void testDeleteEmptyDirectory() throws IOException {
Path dir = getTestRootPath(fSys, "test/hadoop");
fSys.mkdirs(dir);
Assert.assertTrue("Dir exists", exists(fSys, dir));
Assert.assertTrue("Deleted", fSys.delete(dir, false));
Assert.assertFalse("Dir doesn't exist", exists(fSys, dir));
}
@Test
public void testRenameNonExistentPath() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/nonExistent");
Path dst = getTestRootPath(fSys, "test/new/newpath");
try {
rename(src, dst, false, false, false, Rename.NONE);
Assert.fail("Should throw FileNotFoundException");
} catch (IOException e) {
Log.info("XXX", e);
Assert.assertTrue(unwrapException(e) instanceof FileNotFoundException);
}
try {
rename(src, dst, false, false, false, Rename.OVERWRITE);
Assert.fail("Should throw FileNotFoundException");
} catch (IOException e) {
Assert.assertTrue(unwrapException(e) instanceof FileNotFoundException);
}
}
@Test
public void testRenameFileToNonExistentDirectory() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/file");
createFile(src);
Path dst = getTestRootPath(fSys, "test/nonExistent/newfile");
try {
rename(src, dst, false, true, false, Rename.NONE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
Assert.assertTrue(unwrapException(e) instanceof FileNotFoundException);
}
try {
rename(src, dst, false, true, false, Rename.OVERWRITE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
Assert.assertTrue(unwrapException(e) instanceof FileNotFoundException);
}
}
@Test
public void testRenameFileToDestinationWithParentFile() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/file");
createFile(src);
Path dst = getTestRootPath(fSys, "test/parentFile/newfile");
createFile(dst.getParent());
try {
rename(src, dst, false, true, false, Rename.NONE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
}
try {
rename(src, dst, false, true, false, Rename.OVERWRITE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
}
}
@Test
public void testRenameFileToExistingParent() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/file");
createFile(src);
Path dst = getTestRootPath(fSys, "test/new/newfile");
fSys.mkdirs(dst.getParent());
rename(src, dst, true, false, true, Rename.OVERWRITE);
}
@Test
public void testRenameFileToItself() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/file");
createFile(src);
try {
rename(src, src, false, true, false, Rename.NONE);
Assert.fail("Renamed file to itself");
} catch (IOException e) {
Assert.assertTrue(unwrapException(e) instanceof FileAlreadyExistsException);
}
// Also fails with overwrite
try {
rename(src, src, false, true, false, Rename.OVERWRITE);
Assert.fail("Renamed file to itself");
} catch (IOException e) {
// worked
}
}
@Test
public void testRenameFileAsExistingFile() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/file");
createFile(src);
Path dst = getTestRootPath(fSys, "test/new/existingFile");
createFile(dst);
// Fails without overwrite option
try {
rename(src, dst, false, true, false, Rename.NONE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
Assert.assertTrue(unwrapException(e) instanceof FileAlreadyExistsException);
}
// Succeeds with overwrite option
rename(src, dst, true, false, true, Rename.OVERWRITE);
}
@Test
public void testRenameFileAsExistingDirectory() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/file");
createFile(src);
Path dst = getTestRootPath(fSys, "test/new/existingDir");
fSys.mkdirs(dst);
// Fails without overwrite option
try {
rename(src, dst, false, false, true, Rename.NONE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
}
// File cannot be renamed as directory
try {
rename(src, dst, false, false, true, Rename.OVERWRITE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
}
}
@Test
public void testRenameDirectoryToItself() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/dir");
fSys.mkdirs(src);
try {
rename(src, src, false, true, false, Rename.NONE);
Assert.fail("Renamed directory to itself");
} catch (IOException e) {
Assert.assertTrue(unwrapException(e) instanceof FileAlreadyExistsException);
}
// Also fails with overwrite
try {
rename(src, src, false, true, false, Rename.OVERWRITE);
Assert.fail("Renamed directory to itself");
} catch (IOException e) {
// worked
}
}
@Test
public void testRenameDirectoryToNonExistentParent() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/dir");
fSys.mkdirs(src);
Path dst = getTestRootPath(fSys, "test/nonExistent/newdir");
try {
rename(src, dst, false, true, false, Rename.NONE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
Assert.assertTrue(unwrapException(e) instanceof FileNotFoundException);
}
try {
rename(src, dst, false, true, false, Rename.OVERWRITE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
Assert.assertTrue(unwrapException(e) instanceof FileNotFoundException);
}
}
@Test
public void testRenameDirectoryAsNonExistentDirectory() throws Exception {
doTestRenameDirectoryAsNonExistentDirectory(Rename.NONE);
tearDown();
doTestRenameDirectoryAsNonExistentDirectory(Rename.OVERWRITE);
}
private void doTestRenameDirectoryAsNonExistentDirectory(Rename... options)
throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/dir");
fSys.mkdirs(src);
createFile(getTestRootPath(fSys, "test/hadoop/dir/file1"));
createFile(getTestRootPath(fSys, "test/hadoop/dir/subdir/file2"));
Path dst = getTestRootPath(fSys, "test/new/newdir");
fSys.mkdirs(dst.getParent());
rename(src, dst, true, false, true, options);
Assert.assertFalse("Nested file1 exists",
exists(fSys, getTestRootPath(fSys, "test/hadoop/dir/file1")));
Assert.assertFalse("Nested file2 exists",
exists(fSys, getTestRootPath(fSys, "test/hadoop/dir/subdir/file2")));
Assert.assertTrue("Renamed nested file1 exists",
exists(fSys, getTestRootPath(fSys, "test/new/newdir/file1")));
Assert.assertTrue("Renamed nested exists",
exists(fSys, getTestRootPath(fSys, "test/new/newdir/subdir/file2")));
}
@Test
public void testRenameDirectoryAsEmptyDirectory() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/dir");
fSys.mkdirs(src);
createFile(getTestRootPath(fSys, "test/hadoop/dir/file1"));
createFile(getTestRootPath(fSys, "test/hadoop/dir/subdir/file2"));
Path dst = getTestRootPath(fSys, "test/new/newdir");
fSys.mkdirs(dst);
// Fails without overwrite option
try {
rename(src, dst, false, true, false, Rename.NONE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
// Expected (cannot over-write non-empty destination)
Assert.assertTrue(unwrapException(e) instanceof FileAlreadyExistsException);
}
// Succeeds with the overwrite option
rename(src, dst, true, false, true, Rename.OVERWRITE);
}
@Test
public void testRenameDirectoryAsNonEmptyDirectory() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/dir");
fSys.mkdirs(src);
createFile(getTestRootPath(fSys, "test/hadoop/dir/file1"));
createFile(getTestRootPath(fSys, "test/hadoop/dir/subdir/file2"));
Path dst = getTestRootPath(fSys, "test/new/newdir");
fSys.mkdirs(dst);
createFile(getTestRootPath(fSys, "test/new/newdir/file1"));
// Fails without overwrite option
try {
rename(src, dst, false, true, false, Rename.NONE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
// Expected (cannot over-write non-empty destination)
Assert.assertTrue(unwrapException(e) instanceof FileAlreadyExistsException);
}
// Fails even with the overwrite option
try {
rename(src, dst, false, true, false, Rename.OVERWRITE);
Assert.fail("Expected exception was not thrown");
} catch (IOException ex) {
// Expected (cannot over-write non-empty destination)
}
}
@Test
public void testRenameDirectoryAsFile() throws Exception {
if (!renameSupported()) return;
Path src = getTestRootPath(fSys, "test/hadoop/dir");
fSys.mkdirs(src);
Path dst = getTestRootPath(fSys, "test/new/newfile");
createFile(dst);
// Fails without overwrite option
try {
rename(src, dst, false, true, true, Rename.NONE);
Assert.fail("Expected exception was not thrown");
} catch (IOException e) {
}
// Directory cannot be renamed as existing file
try {
rename(src, dst, false, true, true, Rename.OVERWRITE);
Assert.fail("Expected exception was not thrown");
} catch (IOException ex) {
}
}
@Test
public void testInputStreamClosedTwice() throws IOException {
//HADOOP-4760 according to Closeable#close() closing already-closed
//streams should have no effect.
Path src = getTestRootPath(fSys, "test/hadoop/file");
createFile(src);
FSDataInputStream in = fSys.open(src);
in.close();
in.close();
}
@Test
public void testOutputStreamClosedTwice() throws IOException {
//HADOOP-4760 according to Closeable#close() closing already-closed
//streams should have no effect.
Path src = getTestRootPath(fSys, "test/hadoop/file");
FSDataOutputStream out = fSys.create(src);
out.writeChar('H'); //write some data
out.close();
out.close();
}
@Test
public void testGetWrappedInputStream() throws IOException {
Path src = getTestRootPath(fSys, "test/hadoop/file");
createFile(src);
FSDataInputStream in = fSys.open(src);
InputStream is = in.getWrappedStream();
in.close();
Assert.assertNotNull(is);
}
@Test
public void testCopyToLocalWithUseRawLocalFileSystemOption() throws Exception {
Configuration conf = new Configuration();
FileSystem fSys = new RawLocalFileSystem();
Path fileToFS = new Path(TEST_ROOT_DIR, "fs.txt");
Path fileToLFS = new Path(TEST_ROOT_DIR, "test.txt");
Path crcFileAtLFS = new Path(TEST_ROOT_DIR, ".test.txt.crc");
fSys.initialize(new URI("file:///"), conf);
writeFile(fSys, fileToFS);
if (fSys.exists(crcFileAtLFS))
Assert.assertTrue("CRC files not deleted", fSys
.delete(crcFileAtLFS, true));
fSys.copyToLocalFile(false, fileToFS, fileToLFS, true);
Assert.assertFalse("CRC files are created", fSys.exists(crcFileAtLFS));
}
private void writeFile(FileSystem fs, Path name) throws IOException {
FSDataOutputStream stm = fs.create(name);
try {
stm.writeBytes("42\n");
} finally {
stm.close();
}
}
protected void createFile(Path path) throws IOException {
FileSystemTestHelper.createFile(fSys, path);
}
@SuppressWarnings("deprecation")
private void rename(Path src, Path dst, boolean renameShouldSucceed,
boolean srcExists, boolean dstExists, Rename... options)
throws IOException {
fSys.rename(src, dst, options);
if (!renameShouldSucceed)
Assert.fail("rename should have thrown exception");
Assert.assertEquals("Source exists", srcExists, exists(fSys, src));
Assert.assertEquals("Destination exists", dstExists, exists(fSys, dst));
}
private boolean containsPath(Path path, FileStatus[] filteredPaths)
throws IOException {
for(int i = 0; i < filteredPaths.length; i ++) {
if (getTestRootPath(fSys, path.toString()).equals(
filteredPaths[i].getPath()))
return true;
}
return false;
}
}