1  /*
       2   * Copyright © 2020  Google, Inc.
       3   *
       4   *  This is part of HarfBuzz, a text shaping library.
       5   *
       6   * Permission is hereby granted, without written agreement and without
       7   * license or royalty fees, to use, copy, modify, and distribute this
       8   * software and its documentation for any purpose, provided that the
       9   * above copyright notice and the following two paragraphs appear in
      10   * all copies of this software.
      11   *
      12   * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
      13   * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
      14   * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
      15   * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
      16   * DAMAGE.
      17   *
      18   * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
      19   * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
      20   * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
      21   * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
      22   * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
      23   *
      24   * Google Author(s): Calder Kitagawa
      25   */
      26  
      27  #include "hb-test.h"
      28  #include "hb-subset-test.h"
      29  
      30  /* Unit tests for COLR subsetting */
      31  
      32  static void
      33  test_subset_colr_noop (void)
      34  {
      35    hb_face_t *face = hb_test_open_font_file ("fonts/TwemojiMozilla.subset.ttf");
      36  
      37    hb_set_t *codepoints = hb_set_create ();
      38    hb_face_t *face_subset;
      39    hb_set_add (codepoints, '2');
      40    hb_set_add (codepoints, 0x3297);
      41    hb_set_add (codepoints, 0x3299);
      42    face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
      43    hb_set_destroy (codepoints);
      44  
      45    hb_subset_test_check (face, face_subset, HB_TAG ('C','O','L','R'));
      46  
      47    hb_face_destroy (face_subset);
      48    hb_face_destroy (face);
      49  }
      50  
      51  static void
      52  test_subset_colr_keep_one_colr_glyph (void)
      53  {
      54    hb_face_t *face = hb_test_open_font_file ("fonts/TwemojiMozilla.subset.ttf");
      55    hb_face_t *face_expected = hb_test_open_font_file ("fonts/TwemojiMozilla.subset.default.3297.ttf");
      56  
      57    hb_set_t *codepoints = hb_set_create ();
      58    hb_face_t *face_subset;
      59    hb_set_add (codepoints, 0x3297);
      60    face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
      61    hb_set_destroy (codepoints);
      62  
      63    hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','O','L','R'));
      64  
      65    hb_face_destroy (face_subset);
      66    hb_face_destroy (face_expected);
      67    hb_face_destroy (face);
      68  }
      69  
      70  static void
      71  test_subset_colr_keep_mixed_glyph (void)
      72  {
      73    hb_face_t *face = hb_test_open_font_file ("fonts/TwemojiMozilla.subset.ttf");
      74    hb_face_t *face_expected = hb_test_open_font_file ("fonts/TwemojiMozilla.subset.default.32,3299.ttf");
      75  
      76    hb_set_t *codepoints = hb_set_create ();
      77    hb_face_t *face_subset;
      78    hb_set_add (codepoints, '2');
      79    hb_set_add (codepoints, 0x3299);
      80    face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
      81    hb_set_destroy (codepoints);
      82  
      83    hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','O','L','R'));
      84  
      85    hb_face_destroy (face_subset);
      86    hb_face_destroy (face_expected);
      87    hb_face_destroy (face);
      88  }
      89  
      90  static void
      91  test_subset_colr_keep_no_colr_glyph (void)
      92  {
      93    hb_face_t *face = hb_test_open_font_file ("fonts/TwemojiMozilla.subset.ttf");
      94    hb_face_t *face_expected = hb_test_open_font_file ("fonts/TwemojiMozilla.subset.default.32.ttf");
      95  
      96    hb_set_t *codepoints = hb_set_create ();
      97    hb_face_t *face_subset;
      98    hb_set_add (codepoints, '2');
      99    face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
     100    hb_set_destroy (codepoints);
     101  
     102    hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','O','L','R'));
     103  
     104    hb_face_destroy (face_subset);
     105    hb_face_destroy (face_expected);
     106    hb_face_destroy (face);
     107  }
     108  
     109  int
     110  main (int argc, char **argv)
     111  {
     112    hb_test_init (&argc, &argv);
     113  
     114    hb_test_add (test_subset_colr_noop);
     115    hb_test_add (test_subset_colr_keep_one_colr_glyph);
     116    hb_test_add (test_subset_colr_keep_mixed_glyph);
     117    hb_test_add (test_subset_colr_keep_no_colr_glyph);
     118  
     119    return hb_test_run();
     120  }