1  /*
       2   * Copyright © 2019 Adobe 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   * Adobe Author(s): Michiharu Ariza
      25   */
      26  
      27  #include "hb-test.h"
      28  #include "hb-subset-test.h"
      29  
      30  /* Unit tests for gvar subsetting */
      31  
      32  static void
      33  test_subset_gvar_noop (void)
      34  {
      35    hb_face_t *face_abc = hb_test_open_font_file("fonts/SourceSansVariable-Roman.abc.ttf");
      36  
      37    hb_set_t *codepoints = hb_set_create ();
      38    hb_face_t *face_abc_subset;
      39    hb_set_add (codepoints, 'a');
      40    hb_set_add (codepoints, 'b');
      41    hb_set_add (codepoints, 'c');
      42    face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
      43    hb_set_destroy (codepoints);
      44  
      45    hb_subset_test_check (face_abc, face_abc_subset, HB_TAG ('g','v','a','r'));
      46  
      47    hb_face_destroy (face_abc_subset);
      48    hb_face_destroy (face_abc);
      49  }
      50  
      51  static void
      52  test_subset_gvar (void)
      53  {
      54    hb_face_t *face_abc = hb_test_open_font_file ("fonts/SourceSansVariable-Roman.abc.ttf");
      55    hb_face_t *face_ac = hb_test_open_font_file ("fonts/SourceSansVariable-Roman.ac.ttf");
      56  
      57    hb_set_t *codepoints = hb_set_create ();
      58    hb_face_t *face_abc_subset;
      59    hb_set_add (codepoints, 'a');
      60    hb_set_add (codepoints, 'c');
      61    face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
      62    hb_set_destroy (codepoints);
      63  
      64    hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('g','v','a','r'));
      65  
      66    hb_face_destroy (face_abc_subset);
      67    hb_face_destroy (face_abc);
      68    hb_face_destroy (face_ac);
      69  }
      70  
      71  static void
      72  test_subset_gvar_retaingids (void)
      73  {
      74    hb_face_t *face_abc = hb_test_open_font_file ("fonts/SourceSansVariable-Roman.abc.ttf");
      75    hb_face_t *face_ac = hb_test_open_font_file ("fonts/SourceSansVariable-Roman.ac.retaingids.ttf");
      76  
      77    hb_set_t *codepoints = hb_set_create ();
      78    hb_face_t *face_abc_subset;
      79    hb_set_add (codepoints, 'a');
      80    hb_set_add (codepoints, 'c');
      81    hb_subset_input_t *input = hb_subset_test_create_input (codepoints);
      82    hb_subset_input_set_flags (input, HB_SUBSET_FLAGS_RETAIN_GIDS);
      83    face_abc_subset = hb_subset_test_create_subset (face_abc, input);
      84    hb_set_destroy (codepoints);
      85  
      86    hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('g','v','a','r'));
      87  
      88    hb_face_destroy (face_abc_subset);
      89    hb_face_destroy (face_abc);
      90    hb_face_destroy (face_ac);
      91  }
      92  
      93  int
      94  main (int argc, char **argv)
      95  {
      96    hb_test_init (&argc, &argv);
      97  
      98    hb_test_add (test_subset_gvar_noop);
      99    hb_test_add (test_subset_gvar);
     100    hb_test_add (test_subset_gvar_retaingids);
     101  
     102    return hb_test_run ();
     103  }