@Test public void testWrite() throws Exception { String streamString = "testContents"; FileStatus status = fs.getFileStatus(testTempPath); OwnerAndPermission ownerAndPermission = new OwnerAndPermission( status.getOwner(), status.getGroup(), new FsPermission(FsAction.ALL, FsAction.ALL, FsAction.ALL)); CopyableFile cf = CopyableFileUtils.getTestCopyableFile(ownerAndPermission); CopyableDatasetMetadata metadata = new CopyableDatasetMetadata(new TestCopyableDataset(new Path("/source"))); WorkUnitState state = new WorkUnitState(); state.setProp( ConfigurationKeys.WRITER_STAGING_DIR, new Path(testTempPath, "staging").toString()); state.setProp(ConfigurationKeys.WRITER_OUTPUT_DIR, new Path(testTempPath, "output").toString()); state.setProp(ConfigurationKeys.WRITER_FILE_PATH, RandomStringUtils.randomAlphabetic(5)); CopySource.serializeCopyEntity(state, cf); CopySource.serializeCopyableDataset(state, metadata); FileAwareInputStreamDataWriter dataWriter = new FileAwareInputStreamDataWriter(state, 1, 0); FileAwareInputStream fileAwareInputStream = new FileAwareInputStream( cf, StreamUtils.convertStream(IOUtils.toInputStream(streamString))); dataWriter.write(fileAwareInputStream); dataWriter.commit(); Path writtenFilePath = new Path( new Path( state.getProp(ConfigurationKeys.WRITER_OUTPUT_DIR), cf.getDatasetAndPartition(metadata).identifier()), cf.getDestination()); Assert.assertEquals( IOUtils.toString(new FileInputStream(writtenFilePath.toString())), streamString); }