### Question:
LocalDirAllocator { public File createTmpFileForWrite(String pathStr, long size, Configuration conf) throws IOException { AllocatorPerContext context = obtainContext(contextCfgItemName); return context.createTmpFileForWrite(pathStr, size, conf); } LocalDirAllocator(String contextCfgItemName); Path getLocalPathForWrite(String pathStr, 
      Configuration conf); Path getLocalPathForWrite(String pathStr, long size, 
      Configuration conf); Path getLocalPathForWrite(String pathStr, long size, 
                                   Configuration conf,
                                   boolean checkWrite); Path getLocalPathToRead(String pathStr, 
      Configuration conf); Iterable<Path> getAllLocalPathsToRead(String pathStr, 
                                               Configuration conf
                                               ); File createTmpFileForWrite(String pathStr, long size, 
      Configuration conf); static boolean isContextValid(String contextCfgItemName); @Deprecated @InterfaceAudience.LimitedPrivate({"MapReduce"}) static void removeContext(String contextCfgItemName); boolean ifExists(String pathStr,Configuration conf); static final int SIZE_UNKNOWN; }### Answer:
@Test public void testNoSideEffects() throws IOException { if (isWindows) return; String dir = buildBufferDir(ROOT, 0); try { conf.set(CONTEXT, dir); File result = dirAllocator.createTmpFileForWrite(FILENAME, -1, conf); assertTrue(result.delete()); assertTrue(result.getParentFile().delete()); assertFalse(new File(dir).exists()); } finally { Shell.execCommand(new String[]{"chmod", "u+w", BUFFER_DIR_ROOT}); rmBufferDirs(); } }