kc3-lang/harfbuzz/test/api/test-ot-ligature-carets.c

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• Hash : aa732e45
  Author :
  Date : 2020-07-06T00:10:16
  

  [tests] minor, ligcarets is fetched from gdef not gsub

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• test/api/test-ot-ligature-carets.c

• /*
   * Copyright © 2018  Ebrahim Byagowi
   *
   *  This is part of HarfBuzz, a text shaping library.
   *
   * Permission is hereby granted, without written agreement and without
   * license or royalty fees, to use, copy, modify, and distribute this
   * software and its documentation for any purpose, provided that the
   * above copyright notice and the following two paragraphs appear in
   * all copies of this software.
   *
   * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
   * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
   * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
   * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
   * DAMAGE.
   *
   * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
   * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
   * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
   * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
   * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
   *
   */
  
  #include "hb-test.h"
  
  #include <hb-ot.h>
  
  static void
  test_ot_layout_get_ligature_carets_ot_gdef (void)
  {
    hb_face_t *face = hb_test_open_font_file ("fonts/NotoNastaliqUrdu-Regular.ttf");
    hb_font_t *font = hb_font_create (face);
    hb_font_set_scale (font, hb_face_get_upem (face) * 2, hb_face_get_upem (face) * 4);
  
    hb_position_t caret_array[16];
  
    /* call with no result */
    {
      unsigned caret_count = 16;
      g_assert_cmpuint (0, ==, hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR,
  							       188, 0, &caret_count,
  							       caret_array));
  
      g_assert_cmpuint (0, ==, caret_count);
    }
  
    /* call with no result and some offset */
    {
      unsigned caret_count = 16;
      g_assert_cmpuint (0, ==, hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR,
  							       188, 10, &caret_count,
  							       caret_array));
  
      g_assert_cmpuint (0, ==, caret_count);
    }
  
    /* a glyph with 3 ligature carets */
    {
      unsigned caret_count = 16;
      g_assert_cmpuint (3, ==, hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR,
  							       1020, 0, &caret_count,
  							       caret_array));
  
      g_assert_cmpuint (3, ==, caret_count);
      g_assert_cmpuint (2718, ==, caret_array[0]);
      g_assert_cmpuint (5438, ==, caret_array[1]);
      g_assert_cmpuint (8156, ==, caret_array[2]);
    }
  
    /* the same glyph as above but with offset */
    {
      caret_array[2] = 123;
  
      unsigned caret_count = 16;
      g_assert_cmpuint (3, ==, hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR,
  							       1020, 1, &caret_count,
  							       caret_array));
  
      g_assert_cmpuint (2, ==, caret_count);
      g_assert_cmpuint (5438, ==, caret_array[0]);
      g_assert_cmpuint (8156, ==, caret_array[1]);
  
      g_assert_cmpuint (123, ==, caret_array[2]);
    }
  
    /* the same glyph as above but with another offset */
    {
      unsigned caret_count = 16;
      g_assert_cmpuint (3, ==, hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR,
  							       1020, 2, &caret_count,
  							       caret_array));
  
      g_assert_cmpuint (1, ==, caret_count);
      g_assert_cmpuint (8156, ==, caret_array[0]);
    }
  
    /* call with no result */
    {
      unsigned caret_count = 16;
      g_assert_cmpuint (0, ==, hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR,
  							       1021, 0, &caret_count,
  							       caret_array));
  
      g_assert_cmpuint (0, ==, caret_count);
    }
  
    /* a glyph with 1 ligature caret */
    {
      unsigned caret_count = 16;
      g_assert_cmpuint (1, ==, hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR,
  							       1022, 0, &caret_count,
  							       caret_array));
  
      g_assert_cmpuint (1, ==, caret_count);
      g_assert_cmpuint (3530, ==, caret_array[0]);
    }
  
    /* the same glyph as above but with offset */
    {
      unsigned caret_count = 16;
      g_assert_cmpuint (1, ==, hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR,
  							       1022, 1, &caret_count,
  							       caret_array));
  
      g_assert_cmpuint (0, ==, caret_count);
    }
  
    /* a glyph with 2 ligature carets */
    {
      unsigned caret_count = 16;
      g_assert_cmpuint (2, ==, hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_LTR,
  							       1023, 0, &caret_count,
  							       caret_array));
  
      g_assert_cmpuint (2, ==, caret_count);
      g_assert_cmpuint (2352, ==, caret_array[0]);
      g_assert_cmpuint (4706, ==, caret_array[1]);
    }
  
    hb_font_destroy (font);
    hb_face_destroy (face);
  }
  
  static void
  test_ot_layout_get_ligature_carets_empty (void)
  {
    hb_face_t *face = hb_face_get_empty ();
    hb_font_t *font = hb_font_create (face);
    hb_font_set_scale (font, hb_face_get_upem (face) * 2, hb_face_get_upem (face) * 4);
  
    hb_position_t caret_array[3];
    unsigned int caret_count = 3;
    g_assert_cmpuint (0, ==, hb_ot_layout_get_ligature_carets (font, HB_DIRECTION_RTL,
  							     1024, 0, &caret_count,
  							     caret_array));
  
    g_assert_cmpuint (0, ==, caret_count);
  
    hb_font_destroy (font);
    hb_face_destroy (face);
  }
  
  int
  main (int argc, char **argv)
  {
    g_test_init (&argc, &argv, NULL);
  
    hb_test_add (test_ot_layout_get_ligature_carets_ot_gdef);
    hb_test_add (test_ot_layout_get_ligature_carets_empty);
  
    return hb_test_run ();
  }
  

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