harFileSystem.initialize(harUri, fs.getConf());
final Path sourcePath = new Path(fullHarPathStr + Path.SEPARATOR + "a");
final Path targetPath = new Path(tmpPath, "straus");
// copy the Har file to a local file system:
harFileSystem.copyToLocalFile(false, sourcePath, targetPath);
FileStatus straus = localFs.getFileStatus(targetPath);
// the file should contain just 1 character:
assertEquals(1, straus.getLen());
} finally {
harFileSystem.close();