| /** |
| * 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.aliyun.oss.contract; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FSDataInputStream; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.contract.AbstractContractSeekTest; |
| import org.apache.hadoop.fs.contract.AbstractFSContract; |
| import org.junit.Test; |
| |
| import static org.apache.hadoop.fs.contract.ContractTestUtils.createFile; |
| import static org.apache.hadoop.fs.contract.ContractTestUtils.dataset; |
| |
| /** |
| * Aliyun OSS contract seeking tests. |
| */ |
| public class TestAliyunOSSContractSeek extends AbstractContractSeekTest { |
| |
| @Override |
| protected AbstractFSContract createContract(Configuration conf) { |
| return new AliyunOSSContract(conf); |
| } |
| |
| @Test |
| public void testSeekBeyondDownloadSize() throws Throwable { |
| describe("seek and read beyond download size."); |
| |
| Path byteFile = path("byte_file.txt"); |
| // 'fs.oss.multipart.download.size' = 100 * 1024 |
| byte[] block = dataset(100 * 1024 + 10, 0, 255); |
| FileSystem fs = getFileSystem(); |
| createFile(fs, byteFile, true, block); |
| |
| FSDataInputStream instream = getFileSystem().open(byteFile); |
| instream.seek(100 * 1024 - 1); |
| assertEquals(100 * 1024 - 1, instream.getPos()); |
| assertEquals(144, instream.read()); |
| instream.seek(100 * 1024 + 1); |
| assertEquals(100 * 1024 + 1, instream.getPos()); |
| assertEquals(146, instream.read()); |
| } |
| } |