1  /*
       2   * Copyright © 2018  Ebrahim Byagowi
       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  
      25  #include "hb-test.h"
      26  
      27  #include <hb-ot.h>
      28  
      29  #include <math.h>
      30  
      31  /* Unit tests for hb-ot-metrics.h */
      32  
      33  static void
      34  test_ot_metrics_get_no_var (void)
      35  {
      36    hb_face_t *face = hb_test_open_font_file ("fonts/cpal-v0.ttf");
      37    hb_font_t *font = hb_font_create (face);
      38    hb_position_t value;
      39    g_assert (hb_ot_metrics_get_position (font, HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER, &value));
      40    g_assert_cmpint (value, ==, 1000);
      41    g_assert_cmpint (hb_ot_metrics_get_x_variation (font, HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER), ==, 0);
      42    g_assert_cmpint (hb_ot_metrics_get_y_variation (font, HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER), ==, 0);
      43    g_assert_cmpint (hb_ot_metrics_get_x_variation (font, HB_OT_METRICS_TAG_X_HEIGHT), ==, 0);
      44    // g_assert_cmpint ((int) hb_ot_metrics_get_variation (font, HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER), ==, 0);
      45    hb_font_destroy (font);
      46    hb_face_destroy (face);
      47  }
      48  
      49  static void
      50  test_ot_metrics_get_var (void)
      51  {
      52    hb_face_t *face = hb_test_open_font_file ("fonts/TestCFF2VF.otf");
      53    hb_font_t *font = hb_font_create (face);
      54    hb_position_t value;
      55    g_assert (hb_ot_metrics_get_position (font, HB_OT_METRICS_TAG_X_HEIGHT, &value));
      56    g_assert_cmpint (value, ==, 486);
      57    g_assert_cmpint (hb_ot_metrics_get_x_variation (font, HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER), ==, 0);
      58    g_assert_cmpint (hb_ot_metrics_get_y_variation (font, HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER), ==, 0);
      59    g_assert_cmpint (hb_ot_metrics_get_x_variation (font, HB_OT_METRICS_TAG_X_HEIGHT), ==, 0);
      60    float coords[] = {100.f};
      61    hb_font_set_var_coords_design (font, coords, 1);
      62    g_assert (hb_ot_metrics_get_position (font, HB_OT_METRICS_TAG_X_HEIGHT, &value));
      63    g_assert_cmpint (value, ==,  478);
      64    g_assert_cmpint (hb_ot_metrics_get_x_variation (font, HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER), ==, 0);
      65    g_assert_cmpint (hb_ot_metrics_get_y_variation (font, HB_OT_METRICS_TAG_HORIZONTAL_ASCENDER), ==, 0);
      66    g_assert_cmpint (hb_ot_metrics_get_x_variation (font, HB_OT_METRICS_TAG_X_HEIGHT), ==, -8);
      67    hb_font_destroy (font);
      68    hb_face_destroy (face);
      69  }
      70  
      71  int
      72  main (int argc, char **argv)
      73  {
      74    hb_test_init (&argc, &argv);
      75    hb_test_add (test_ot_metrics_get_no_var);
      76    hb_test_add (test_ot_metrics_get_var);
      77    return hb_test_run ();
      78  }