File generateFile() {
    return new File(generateString());
  }

  @Generates
  static ByteArrayInputStream generateByteArrayInputStream() {
    return new ByteArrayInputStream(new byte[0]);
  }

  @Generates
  static InputStream generateInputStream() {
    return generateByteArrayInputStream();
  }

  @Generates
  StringReader generateStringReader() {
    return new StringReader(generateString());
  }