src/test-cff.cc

/*
 * Copyright © 2024  David Corbett
 *
 *  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.hh"
#include "hb-ot-cff-common.hh"
#include "hb-subset-cff-common.hh"

int
main (int argc, char **argv)
{
  /* Test encode_num_tp */
  {
    CFF::str_buff_t buff;
    CFF::str_encoder_t encoder (buff);
    CFF::number_t number;
    struct num_tp_test {
      double input;
      unsigned length;
      unsigned char output[7];
    };
    struct num_tp_test num_tp_tests[] = {
      { -9.399999999999999, 4, { 0x1E, 0xE9, 0xA4, 0xFF } }, // -9.4
      { 9.399999999999999999, 3, { 0x1E, 0x9A, 0x4F } }, // 9.4
      { 456.8, 4, { 0x1E, 0x45, 0x6A, 0x8F } }, // 456.8
      { 98765.37e2, 5, { 0x1E, 0x98, 0x76, 0x53, 0x7F } }, // 9876537
      { 1234567890.0, 7, { 0x1E, 0x12, 0x34, 0x56, 0x79, 0xB2, 0xFF } }, // 12345679E2
      { 9.876537e-4, 7, { 0x1E, 0x98, 0x76, 0x53, 0x7C, 0x10, 0xFF } }, // 9876537E-10
      { 9.876537e4, 6, { 0x1E, 0x98, 0x76, 0x5A, 0x37, 0xFF } }, // 98765.37
      { 1e8, 3, { 0x1E, 0x1B, 0x8F } }, // 1E8
      { 1e-5, 3, { 0x1E, 0x1C, 0x5F } }, // 1E-5
      { 1.2e8, 4, { 0x1E, 0x12, 0xB7, 0xFF } }, // 12E7
      { 1.2345e-5, 5, { 0x1E, 0x12, 0x34, 0x5C, 0x9F } }, // 12345E-9
      { 9.0987654e8, 6, { 0x1E, 0x90, 0x98, 0x76, 0x54, 0x0F } }, // 909876540
      { 0.1, 3, { 0x1E, 0xA1, 0xFF } }, // .1
      { -0.1, 3, { 0x1E, 0xEA, 0x1F } }, // -.1
      { 0.01, 3, { 0x1E, 0x1C, 0x2F } }, // 1E-2
      { -0.01, 4, { 0x1E, 0xE1, 0xC2, 0xFF } }, // -1E-2
      { 0.0123, 4, { 0x1E, 0x12, 0x3C, 0x4F } }, // 123E-4
      { -0.0123, 5, { 0x1E, 0xE1, 0x23, 0xC4, 0xFF } }, // -123E-4
    };
    for (size_t t = 0; t < sizeof num_tp_tests / sizeof num_tp_tests[0]; t++)
    {
      struct num_tp_test num_tp_test = num_tp_tests[t];
      number.set_real (num_tp_test.input);
      encoder.encode_num_tp (number);
      hb_always_assert (buff.length == num_tp_test.length);
      for (unsigned i = 0; i < buff.length; i++)
	hb_always_assert (buff[i] == num_tp_test.output[i]);
      encoder.reset ();
    }
  }

  return 0;
}