@Test
  public void testReadingFromFile() throws Exception {
    final File tempFileIn = testFolder.newFile("utfdatain.txt");
    final FileSink fileSink = newFileSink().binary(true);
    final HttpSource source = newHttpSource();
    /* I want to go to Japan. */
    final String stringToPostInJapanese = "\u65e5\u672c\u306b\u884c\u304d\u305f\u3044\u3002";
    // Let's source from an UTF16 file.
    Charset inCharset = Charset.forName("UTF-16");
    OutputStream os = new FileOutputStream(tempFileIn);
    StreamUtils.copy(stringToPostInJapanese, inCharset, os);
    os.close();
    final String streamName = generateStreamName();
    final String stream = String.format("%s | %s", source, fileSink);
    stream().create(streamName, stream);
    source.ensureReady().useContentType(String.format("text/plain;charset=%s", inCharset)).postFromFile(tempFileIn);
    assertThat(fileSink, eventually(hasContentsThat(equalTo(stringToPostInJapanese))));
  }