| /* |
| * 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.conf.Configuration; |
| import org.apache.hadoop.fs.CommonConfigurationKeysPublic; |
| import org.apache.hadoop.fs.FSDataInputStream; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.io.IOUtils; |
| import org.junit.Test; |
| |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| |
| import static org.apache.hadoop.fs.contract.ContractTestUtils.createFile; |
| import static org.apache.hadoop.fs.contract.ContractTestUtils.dataset; |
| import static org.apache.hadoop.fs.contract.ContractTestUtils.rm; |
| import static org.apache.hadoop.fs.contract.ContractTestUtils.touch; |
| |
| /** |
| * Test Seek operations |
| */ |
| public abstract class AbstractContractOpenTest extends AbstractFSContractTestBase { |
| |
| private FSDataInputStream instream; |
| |
| @Override |
| protected Configuration createConfiguration() { |
| Configuration conf = super.createConfiguration(); |
| conf.setInt(CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_KEY, 4096); |
| return conf; |
| } |
| |
| @Override |
| public void teardown() throws Exception { |
| IOUtils.closeStream(instream); |
| instream = null; |
| super.teardown(); |
| } |
| |
| @Test |
| public void testOpenReadZeroByteFile() throws Throwable { |
| describe("create & read a 0 byte file"); |
| Path path = path("zero.txt"); |
| touch(getFileSystem(), path); |
| instream = getFileSystem().open(path); |
| assertEquals(0, instream.getPos()); |
| //expect initial read to fail |
| int result = instream.read(); |
| assertMinusOne("initial byte read", result); |
| } |
| |
| @Test |
| public void testFsIsEncrypted() throws Exception { |
| describe("create an empty file and call FileStatus.isEncrypted()"); |
| final Path path = path("file"); |
| createFile(getFileSystem(), path, false, new byte[0]); |
| final FileStatus stat = getFileSystem().getFileStatus(path); |
| assertFalse("Expecting false for stat.isEncrypted()", |
| stat.isEncrypted()); |
| } |
| |
| @Test |
| public void testOpenReadDir() throws Throwable { |
| describe("create & read a directory"); |
| Path path = path("zero.dir"); |
| mkdirs(path); |
| try { |
| instream = getFileSystem().open(path); |
| //at this point we've opened a directory |
| fail("A directory has been opened for reading"); |
| } catch (FileNotFoundException e) { |
| handleExpectedException(e); |
| } catch (IOException e) { |
| handleRelaxedException("opening a directory for reading", |
| "FileNotFoundException", |
| e); |
| } |
| } |
| |
| @Test |
| public void testOpenReadDirWithChild() throws Throwable { |
| describe("create & read a directory which has a child"); |
| Path path = path("zero.dir"); |
| mkdirs(path); |
| Path path2 = new Path(path, "child"); |
| mkdirs(path2); |
| |
| try { |
| instream = getFileSystem().open(path); |
| //at this point we've opened a directory |
| fail("A directory has been opened for reading"); |
| } catch (FileNotFoundException e) { |
| handleExpectedException(e); |
| } catch (IOException e) { |
| handleRelaxedException("opening a directory for reading", |
| "FileNotFoundException", |
| e); |
| } |
| } |
| |
| @Test |
| public void testOpenFileTwice() throws Throwable { |
| describe("verify that two opened file streams are independent"); |
| Path path = path("testopenfiletwice.txt"); |
| byte[] block = dataset(TEST_FILE_LEN, 0, 255); |
| //this file now has a simple rule: offset => value |
| createFile(getFileSystem(), path, true, block); |
| //open first |
| FSDataInputStream instream1 = getFileSystem().open(path); |
| FSDataInputStream instream2 = null; |
| try { |
| int c = instream1.read(); |
| assertEquals(0,c); |
| instream2 = getFileSystem().open(path); |
| assertEquals("first read of instream 2", 0, instream2.read()); |
| assertEquals("second read of instream 1", 1, instream1.read()); |
| instream1.close(); |
| assertEquals("second read of instream 2", 1, instream2.read()); |
| //close instream1 again |
| instream1.close(); |
| } finally { |
| IOUtils.closeStream(instream1); |
| IOUtils.closeStream(instream2); |
| } |
| } |
| |
| @Test |
| public void testSequentialRead() throws Throwable { |
| describe("verify that sequential read() operations return values"); |
| Path path = path("testsequentialread.txt"); |
| int len = 4; |
| int base = 0x40; // 64 |
| byte[] block = dataset(len, base, base + len); |
| //this file now has a simple rule: offset => (value | 0x40) |
| createFile(getFileSystem(), path, true, block); |
| //open first |
| instream = getFileSystem().open(path); |
| assertEquals(base, instream.read()); |
| assertEquals(base + 1, instream.read()); |
| assertEquals(base + 2, instream.read()); |
| assertEquals(base + 3, instream.read()); |
| // and now, failures |
| assertEquals(-1, instream.read()); |
| assertEquals(-1, instream.read()); |
| instream.close(); |
| } |
| |
| |
| } |