@Test
  public void testThreeGeoTIFFStringTags() {
    metadata.addGeoAscii(2300, "4576");
    metadata.addGeoAscii(2400, "aaaaaaaa");
    metadata.addGeoAscii(2401, "bbbb");

    final List<TIFFField> list = Utils.createGeoTIFFFields(metadata);

    assertNotNull(list);
    assertEquals(2, list.size());

    final TIFFField dirField = list.get(0);
    final TIFFField asciiField = list.get(1);

    assertEquals(GeoTIFFTagSet.TAG_GEO_KEY_DIRECTORY, dirField.getTag());
    assertEquals(GeoTIFFTagSet.TAG_GEO_ASCII_PARAMS, asciiField.getTag());

    assertEquals(TIFFField.TIFF_SHORT, dirField.getType());
    assertEquals(TIFFField.TIFF_ASCII, asciiField.getType());

    assertEquals(16, dirField.getCount());
    assertEquals(3, asciiField.getCount());

    final char[] expected = {
      1, 1, 2, 3,
      2300, GeoTIFFTagSet.TAG_GEO_ASCII_PARAMS, 5, 0,
      2400, GeoTIFFTagSet.TAG_GEO_ASCII_PARAMS, 9, 5,
      2401, GeoTIFFTagSet.TAG_GEO_ASCII_PARAMS, 5, 14
    };
    assertArrayEquals(expected, dirField.getAsChars());
    assertEquals("4576|", asciiField.getAsString(0));
    assertEquals("aaaaaaaa|", asciiField.getAsString(1));
    assertEquals("bbbb|", asciiField.getAsString(2));
  }
  @Test
  public void testThreeGeoTIFFTagsWithOneAscii() {
    metadata.addGeoShortParam(2300, 4576);
    metadata.addGeoAscii(2400, "String");
    metadata.addGeoShortParam(2401, 3456);

    final List<TIFFField> list = Utils.createGeoTIFFFields(metadata);

    assertNotNull(list);
    assertEquals(2, list.size());

    final TIFFField dirField = list.get(0);
    final TIFFField asciiField = list.get(1);

    assertEquals(GeoTIFFTagSet.TAG_GEO_KEY_DIRECTORY, dirField.getTag());
    assertEquals(GeoTIFFTagSet.TAG_GEO_ASCII_PARAMS, asciiField.getTag());

    assertEquals(TIFFField.TIFF_SHORT, dirField.getType());
    assertEquals(TIFFField.TIFF_ASCII, asciiField.getType());

    assertEquals(16, dirField.getCount());
    assertEquals(1, asciiField.getCount());

    final char[] expected = {
      1, 1, 2, 3,
      2300, 0, 1, 4576,
      2400, GeoTIFFTagSet.TAG_GEO_ASCII_PARAMS, 7, 0,
      2401, 0, 1, 3456
    };
    assertArrayEquals(expected, dirField.getAsChars());
    assertEquals("String|", asciiField.getAsString(0));
  }
  @Test
  public void testThreeGeoTIFFTagsWithOneDoubleAndOneString() {
    metadata.addGeoShortParam(2300, 4576);
    metadata.addGeoDoubleParam(2400, 4.5);
    metadata.addGeoAscii(2401, "dlkjfg");

    final List<TIFFField> list = Utils.createGeoTIFFFields(metadata);

    assertNotNull(list);
    assertEquals(3, list.size());

    final TIFFField dirField = list.get(0);
    final TIFFField doubleField = list.get(1);
    final TIFFField asciiField = list.get(2);

    assertEquals(GeoTIFFTagSet.TAG_GEO_KEY_DIRECTORY, dirField.getTag());
    assertEquals(GeoTIFFTagSet.TAG_GEO_DOUBLE_PARAMS, doubleField.getTag());
    assertEquals(GeoTIFFTagSet.TAG_GEO_ASCII_PARAMS, asciiField.getTag());

    assertEquals(TIFFField.TIFF_SHORT, dirField.getType());
    assertEquals(TIFFField.TIFF_DOUBLE, doubleField.getType());
    assertEquals(TIFFField.TIFF_ASCII, asciiField.getType());

    assertEquals(16, dirField.getCount());
    assertEquals(1, doubleField.getCount());
    assertEquals(1, asciiField.getCount());

    final char[] expected = {
      1,
      1,
      2,
      3,
      2300,
      0,
      1,
      4576,
      2400,
      GeoTIFFTagSet.TAG_GEO_DOUBLE_PARAMS,
      1,
      0,
      2401,
      GeoTIFFTagSet.TAG_GEO_ASCII_PARAMS,
      7,
      0
    };
    assertArrayEquals(expected, dirField.getAsChars());
    assertEquals(true, Arrays.equals(new double[] {4.5}, doubleField.getAsDoubles()));
    assertEquals("dlkjfg|", asciiField.getAsString(0));
  }