| /** |
| * 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.hdfs.server.datanode; |
| |
| import java.util.List; |
| |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.hdfs.BlockReader; |
| import org.apache.hadoop.hdfs.BlockReaderTestUtil; |
| import org.apache.hadoop.hdfs.protocol.Block; |
| import org.apache.hadoop.hdfs.protocol.LocatedBlock; |
| |
| import org.junit.Test; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.mockito.Mockito; |
| import static org.mockito.Mockito.spy; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.never; |
| |
| public class TestDataXceiver { |
| static BlockReaderTestUtil util = null; |
| static final Path TEST_FILE = new Path("/test.file"); |
| static final int FILE_SIZE_K = 256; |
| static LocatedBlock testBlock = null; |
| |
| @BeforeClass |
| public static void setupCluster() throws Exception { |
| final int REPLICATION_FACTOR = 1; |
| util = new BlockReaderTestUtil(REPLICATION_FACTOR); |
| // Create file. |
| util.writeFile(TEST_FILE, FILE_SIZE_K); |
| // Now get its blocks. |
| List<LocatedBlock> blkList = util.getFileBlocks(TEST_FILE, FILE_SIZE_K); |
| testBlock = blkList.get(0); // Use the first block to test |
| } |
| |
| /** |
| * Test that we don't call verifiedByClient() when the client only |
| * reads a partial block. |
| */ |
| @Test |
| public void testCompletePartialRead() throws Exception { |
| // Ask for half the file |
| BlockReader reader = util.getBlockReader(testBlock, 0, FILE_SIZE_K * 1024 / 2); |
| DataNode dn = util.getDataNode(testBlock); |
| DataBlockScanner scanner = spy(dn.blockScanner); |
| dn.blockScanner = scanner; |
| |
| // And read half the file |
| util.readAndCheckEOS(reader, FILE_SIZE_K * 1024 / 2, true); |
| verify(scanner, never()).verifiedByClient(Mockito.isA(Block.class)); |
| reader.close(); |
| } |
| |
| @AfterClass |
| public static void teardownCluster() throws Exception { |
| util.shutdown(); |
| } |
| } |