kc3-lang/harfbuzz/test/test-unicode.c

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• Hash : 63c0ef4a
  Author :
  Date : 2011-07-21T20:58:42
  

  Fix decompose() implementations to work with non-starter non-composables
  
  Add tests.
  

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• test/test-unicode.c

• /*
   * Copyright © 2011  Codethink Limited
   * Copyright © 2011  Google, Inc.
   *
   *  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.
   *
   * Codethink Author(s): Ryan Lortie
   * Google Author(s): Behdad Esfahbod
   */
  
  #include "hb-test.h"
  
  /* Unit tests for hb-unicode.h */
  /* Unit tests for hb-glib.h */
  /* Unit tests for hb-icu.h */
  
  
  #ifdef HAVE_GLIB
  #include <hb-glib.h>
  #endif
  #ifdef HAVE_ICU
  #include <hb-icu.h>
  #endif
  
  
  /* Some useful stuff */
  
  #define MAGIC0 0x12345678
  #define MAGIC1 0x76543210
  
  typedef struct {
    int value;
    gboolean freed;
  } data_t;
  
  static void free_up (void *p)
  {
    data_t *data = (data_t *) p;
  
    g_assert (data->value == MAGIC0 || data->value == MAGIC1);
    g_assert (!data->freed);
    data->freed = TRUE;
  }
  
  static hb_script_t
  simple_get_script (hb_unicode_funcs_t *ufuncs,
                     hb_codepoint_t      codepoint,
                     void               *user_data)
  {
    data_t *data = (data_t *) user_data;
  
    g_assert (hb_unicode_funcs_get_parent (ufuncs) != NULL);
    g_assert_cmphex (data->value, ==, MAGIC0);
    g_assert (!data->freed);
  
    if ('a' <= codepoint && codepoint <= 'z')
      return HB_SCRIPT_LATIN;
    else
      return HB_SCRIPT_UNKNOWN;
  }
  
  static hb_script_t
  a_is_for_arabic_get_script (hb_unicode_funcs_t *ufuncs,
                              hb_codepoint_t      codepoint,
                              void               *user_data)
  {
    data_t *data = (data_t *) user_data;
  
    g_assert (hb_unicode_funcs_get_parent (ufuncs) != NULL);
    g_assert_cmphex (data->value, ==, MAGIC1);
    g_assert (!data->freed);
  
    if (codepoint == 'a') {
      return HB_SCRIPT_ARABIC;
    } else {
      hb_unicode_funcs_t *parent = hb_unicode_funcs_get_parent (ufuncs);
  
      return hb_unicode_script (parent, codepoint);
    }
  }
  
  
  
  /* Check all properties */
  
  /* Some of the following tables where adapted from glib/glib/tests/utf8-misc.c.
   * The license is compatible. */
  
  typedef struct {
    hb_codepoint_t unicode;
    unsigned int   value;
  } test_pair_t;
  
  static const test_pair_t combining_class_tests[] =
  {
    {   0x0020, 0 },
    {   0x0334, 1 },
    {   0x093C, 7 },
    {   0x3099, 8 },
    {   0x094D, 9 },
    {   0x05B0, 10 },
    {   0x05B1, 11 },
    {   0x05B2, 12 },
    {   0x05B3, 13 },
    {   0x05B4, 14 },
    {   0x05B5, 15 },
    {   0x05B6, 16 },
    {   0x05B7, 17 },
    {   0x05B8, 18 },
    {   0x05B9, 19 },
    {   0x05BB, 20 },
    {   0x05BC, 21 },
    {   0x05BD, 22 },
    {   0x05BF, 23 },
    {   0x05C1, 24 },
    {   0x05C2, 25 },
    {   0xFB1E, 26 },
    {   0x064B, 27 },
    {   0x064C, 28 },
    {   0x064D, 29 },
    /* ... */
    {   0x05AE, 228 },
    {   0x0300, 230 },
    {   0x302C, 232 },
    {   0x0362, 233 },
    {   0x0360, 234 },
    {   0x1DCD, 234 },
    {   0x0345, 240 },
  
    { 0x111111, 0 }
  };
  static const test_pair_t combining_class_tests_more[] =
  {
    /* Unicode-5.2 character additions */
    {   0xA8E0, 230 },
  
    /* Unicode-6.0 character additions */
    {   0x135D, 230 },
  
    { 0x111111, 0 }
  };
  
  static const test_pair_t eastasian_width_tests[] =
  {
    /* Neutral */
    {   0x0000, 1 },
    {   0x0483, 1 },
    {   0x0641, 1 },
    {   0xFFFC, 1 },
    {  0x10000, 1 },
    {  0xE0001, 1 },
  
    /* Narrow */
    {   0x0020, 1 },
    {   0x0041, 1 },
    {   0x27E6, 1 },
  
    /* Halfwidth */
    {   0x20A9, 1 },
    {   0xFF61, 1 },
    {   0xFF69, 1 },
    {   0xFFEE, 1 },
  
    /* Ambiguous */
    {   0x00A1, 1 },
    {   0x00D8, 1 },
    {   0x02DD, 1 },
    {  0xE0100, 1 },
    { 0x100000, 1 },
  
    /* Fullwidth */
    {   0x3000, 2 },
    {   0xFF60, 2 },
  
    /* Wide */
    {   0x2329, 2 },
    {   0x3001, 2 },
    {   0xFE69, 2 },
    {  0x30000, 2 },
    {  0x3FFFD, 2 },
  
    { 0x111111, 1 }
  };
  static const test_pair_t eastasian_width_tests_more[] =
  {
    /* Default Wide blocks */
    {   0x4DBF, 2 },
    {   0x9FFF, 2 },
    {   0xFAFF, 2 },
    {  0x2A6DF, 2 },
    {  0x2B73F, 2 },
    {  0x2B81F, 2 },
    {  0x2FA1F, 2 },
  
    /* Uniode-5.2 character additions */
    /* Wide */
    {   0x115F, 2 },
  
    /* Uniode-6.0 character additions */
    /* Wide */
    {  0x2B740, 2 },
    {  0x1B000, 2 },
  
    { 0x111111, 1 }
  };
  
  static const test_pair_t general_category_tests[] =
  {
    {   0x000D, HB_UNICODE_GENERAL_CATEGORY_CONTROL },
    {   0x200E, HB_UNICODE_GENERAL_CATEGORY_FORMAT },
    {   0x0378, HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED },
    {   0xE000, HB_UNICODE_GENERAL_CATEGORY_PRIVATE_USE },
    {   0xD800, HB_UNICODE_GENERAL_CATEGORY_SURROGATE },
    {   0x0061, HB_UNICODE_GENERAL_CATEGORY_LOWERCASE_LETTER },
    {   0x02B0, HB_UNICODE_GENERAL_CATEGORY_MODIFIER_LETTER },
    {   0x3400, HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER },
    {   0x01C5, HB_UNICODE_GENERAL_CATEGORY_TITLECASE_LETTER },
    {   0xFF21, HB_UNICODE_GENERAL_CATEGORY_UPPERCASE_LETTER },
    {   0x0903, HB_UNICODE_GENERAL_CATEGORY_SPACING_MARK },
    {   0x20DD, HB_UNICODE_GENERAL_CATEGORY_ENCLOSING_MARK },
    {   0xA806, HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK },
    {   0xFF10, HB_UNICODE_GENERAL_CATEGORY_DECIMAL_NUMBER },
    {   0x16EE, HB_UNICODE_GENERAL_CATEGORY_LETTER_NUMBER },
    {   0x17F0, HB_UNICODE_GENERAL_CATEGORY_OTHER_NUMBER },
    {   0x005F, HB_UNICODE_GENERAL_CATEGORY_CONNECT_PUNCTUATION },
    {   0x058A, HB_UNICODE_GENERAL_CATEGORY_DASH_PUNCTUATION },
    {   0x0F3B, HB_UNICODE_GENERAL_CATEGORY_CLOSE_PUNCTUATION },
    {   0x2019, HB_UNICODE_GENERAL_CATEGORY_FINAL_PUNCTUATION },
    {   0x2018, HB_UNICODE_GENERAL_CATEGORY_INITIAL_PUNCTUATION },
    {   0x2016, HB_UNICODE_GENERAL_CATEGORY_OTHER_PUNCTUATION },
    {   0x0F3A, HB_UNICODE_GENERAL_CATEGORY_OPEN_PUNCTUATION },
    {   0x20A0, HB_UNICODE_GENERAL_CATEGORY_CURRENCY_SYMBOL },
    {   0x309B, HB_UNICODE_GENERAL_CATEGORY_MODIFIER_SYMBOL },
    {   0xFB29, HB_UNICODE_GENERAL_CATEGORY_MATH_SYMBOL },
    {   0x00A6, HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL },
    {   0x2028, HB_UNICODE_GENERAL_CATEGORY_LINE_SEPARATOR },
    {   0x2029, HB_UNICODE_GENERAL_CATEGORY_PARAGRAPH_SEPARATOR },
    {   0x202F, HB_UNICODE_GENERAL_CATEGORY_SPACE_SEPARATOR },
  
    { 0x111111, HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED }
  };
  static const test_pair_t general_category_tests_more[] =
  {
    /* Unicode-5.2 character additions */
    {  0x1F131, HB_UNICODE_GENERAL_CATEGORY_OTHER_SYMBOL },
  
    /* Unicode-6.0 character additions */
    {   0x0620, HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER },
  
    { 0x111111, HB_UNICODE_GENERAL_CATEGORY_UNASSIGNED }
  };
  
  static const test_pair_t mirroring_tests[] =
  {
    /* Some characters that do NOT mirror */
    {   0x0020, 0x0020 },
    {   0x0041, 0x0041 },
    {   0x00F0, 0x00F0 },
    {   0x27CC, 0x27CC },
    {  0xE01EF, 0xE01EF },
    {  0x1D7C3, 0x1D7C3 },
    { 0x100000, 0x100000 },
  
    /* Some characters that do mirror */
    {   0x0029, 0x0028 },
    {   0x0028, 0x0029 },
    {   0x003E, 0x003C },
    {   0x003C, 0x003E },
    {   0x005D, 0x005B },
    {   0x005B, 0x005D },
    {   0x007D, 0x007B },
    {   0x007B, 0x007D },
    {   0x00BB, 0x00AB },
    {   0x00AB, 0x00BB },
    {   0x226B, 0x226A },
    {   0x226A, 0x226B },
    {   0x22F1, 0x22F0 },
    {   0x22F0, 0x22F1 },
    {   0xFF60, 0xFF5F },
    {   0xFF5F, 0xFF60 },
    {   0xFF63, 0xFF62 },
    {   0xFF62, 0xFF63 },
  
    { 0x111111, 0x111111 },
  };
  static const test_pair_t mirroring_tests_more[] =
  {
    /* No new mirroring characters have been encoded in recent Unicode versions. */
    { 0x111111, 0x111111 }
  };
  
  static const test_pair_t script_tests[] =
  {
    {   0x002A, HB_SCRIPT_COMMON },
    {   0x0670, HB_SCRIPT_INHERITED },
    {   0x060D, HB_SCRIPT_ARABIC },
    {   0x0559, HB_SCRIPT_ARMENIAN },
    {   0x09CD, HB_SCRIPT_BENGALI },
    {   0x31B6, HB_SCRIPT_BOPOMOFO },
    {   0x13A2, HB_SCRIPT_CHEROKEE },
    {   0x2CFD, HB_SCRIPT_COPTIC },
    {   0x0482, HB_SCRIPT_CYRILLIC },
    {  0x10401, HB_SCRIPT_DESERET },
    {   0x094D, HB_SCRIPT_DEVANAGARI },
    {   0x1258, HB_SCRIPT_ETHIOPIC },
    {   0x10FC, HB_SCRIPT_GEORGIAN },
    {  0x10341, HB_SCRIPT_GOTHIC },
    {   0x0375, HB_SCRIPT_GREEK },
    {   0x0A83, HB_SCRIPT_GUJARATI },
    {   0x0A3C, HB_SCRIPT_GURMUKHI },
    {   0x3005, HB_SCRIPT_HAN },
    {   0x1100, HB_SCRIPT_HANGUL },
    {   0x05BF, HB_SCRIPT_HEBREW },
    {   0x309F, HB_SCRIPT_HIRAGANA },
    {   0x0CBC, HB_SCRIPT_KANNADA },
    {   0x30FF, HB_SCRIPT_KATAKANA },
    {   0x17DD, HB_SCRIPT_KHMER },
    {   0x0EDD, HB_SCRIPT_LAO },
    {   0x0061, HB_SCRIPT_LATIN },
    {   0x0D3D, HB_SCRIPT_MALAYALAM },
    {   0x1843, HB_SCRIPT_MONGOLIAN },
    {   0x1031, HB_SCRIPT_MYANMAR },
    {   0x169C, HB_SCRIPT_OGHAM },
    {  0x10322, HB_SCRIPT_OLD_ITALIC },
    {   0x0B3C, HB_SCRIPT_ORIYA },
    {   0x16EF, HB_SCRIPT_RUNIC },
    {   0x0DBD, HB_SCRIPT_SINHALA },
    {   0x0711, HB_SCRIPT_SYRIAC },
    {   0x0B82, HB_SCRIPT_TAMIL },
    {   0x0C03, HB_SCRIPT_TELUGU },
    {   0x07B1, HB_SCRIPT_THAANA },
    {   0x0E31, HB_SCRIPT_THAI },
    {   0x0FD4, HB_SCRIPT_TIBETAN },
    {   0x1401, HB_SCRIPT_CANADIAN_ABORIGINAL },
    {   0xA015, HB_SCRIPT_YI },
    {   0x1700, HB_SCRIPT_TAGALOG },
    {   0x1720, HB_SCRIPT_HANUNOO },
    {   0x1740, HB_SCRIPT_BUHID },
    {   0x1760, HB_SCRIPT_TAGBANWA },
  
    /* Unicode-4.0 additions */
    {   0x2800, HB_SCRIPT_BRAILLE },
    {  0x10808, HB_SCRIPT_CYPRIOT },
    {   0x1932, HB_SCRIPT_LIMBU },
    {  0x10480, HB_SCRIPT_OSMANYA },
    {  0x10450, HB_SCRIPT_SHAVIAN },
    {  0x10000, HB_SCRIPT_LINEAR_B },
    {   0x1950, HB_SCRIPT_TAI_LE },
    {  0x1039F, HB_SCRIPT_UGARITIC },
  
    /* Unicode-4.1 additions */
    {   0x1980, HB_SCRIPT_NEW_TAI_LUE },
    {   0x1A1F, HB_SCRIPT_BUGINESE },
    {   0x2C00, HB_SCRIPT_GLAGOLITIC },
    {   0x2D6F, HB_SCRIPT_TIFINAGH },
    {   0xA800, HB_SCRIPT_SYLOTI_NAGRI },
    {  0x103D0, HB_SCRIPT_OLD_PERSIAN },
    {  0x10A3F, HB_SCRIPT_KHAROSHTHI },
  
    /* Unicode-5.0 additions */
    {   0x0378, HB_SCRIPT_UNKNOWN },
    {   0x1B04, HB_SCRIPT_BALINESE },
    {  0x12000, HB_SCRIPT_CUNEIFORM },
    {  0x10900, HB_SCRIPT_PHOENICIAN },
    {   0xA840, HB_SCRIPT_PHAGS_PA },
    {   0x07C0, HB_SCRIPT_NKO },
  
    /* Unicode-5.1 additions */
    {   0xA900, HB_SCRIPT_KAYAH_LI },
    {   0x1C00, HB_SCRIPT_LEPCHA },
    {   0xA930, HB_SCRIPT_REJANG },
    {   0x1B80, HB_SCRIPT_SUNDANESE },
    {   0xA880, HB_SCRIPT_SAURASHTRA },
    {   0xAA00, HB_SCRIPT_CHAM },
    {   0x1C50, HB_SCRIPT_OL_CHIKI },
    {   0xA500, HB_SCRIPT_VAI },
    {  0x102A0, HB_SCRIPT_CARIAN },
    {  0x10280, HB_SCRIPT_LYCIAN },
    {  0x1093F, HB_SCRIPT_LYDIAN },
  
    { 0x111111, HB_SCRIPT_UNKNOWN }
  };
  static const test_pair_t script_tests_more[] =
  {
    /* Unicode-5.2 additions */
    {  0x10B00, HB_SCRIPT_AVESTAN },
    {   0xA6A0, HB_SCRIPT_BAMUM },
    {  0x13000, HB_SCRIPT_EGYPTIAN_HIEROGLYPHS },
    {  0x10840, HB_SCRIPT_IMPERIAL_ARAMAIC },
    {  0x10B60, HB_SCRIPT_INSCRIPTIONAL_PAHLAVI },
    {  0x10B40, HB_SCRIPT_INSCRIPTIONAL_PARTHIAN },
    {   0xA980, HB_SCRIPT_JAVANESE },
    {  0x11082, HB_SCRIPT_KAITHI },
    {   0xA4D0, HB_SCRIPT_LISU },
    {   0xABE5, HB_SCRIPT_MEETEI_MAYEK },
    {  0x10A60, HB_SCRIPT_OLD_SOUTH_ARABIAN },
    {  0x10C00, HB_SCRIPT_OLD_TURKIC },
    {   0x0800, HB_SCRIPT_SAMARITAN },
    {   0x1A20, HB_SCRIPT_TAI_THAM },
    {   0xAA80, HB_SCRIPT_TAI_VIET },
  
    /* Unicode-6.0 additions */
    {   0x1BC0, HB_SCRIPT_BATAK },
    {  0x11000, HB_SCRIPT_BRAHMI },
    {   0x0840, HB_SCRIPT_MANDAIC },
  
    /* Unicode-5.2 character additions */
    {   0x1CED, HB_SCRIPT_INHERITED },
    {   0x1400, HB_SCRIPT_CANADIAN_ABORIGINAL },
  
    { 0x111111, HB_SCRIPT_UNKNOWN }
  };
  
  
  typedef unsigned int (*get_func_t)         (hb_unicode_funcs_t *ufuncs,
  					    hb_codepoint_t      unicode,
  					    void               *user_data);
  typedef unsigned int (*func_setter_func_t) (hb_unicode_funcs_t *ufuncs,
  					    get_func_t          func,
  					    void               *user_data,
  					    hb_destroy_func_t   destroy);
  typedef unsigned int (*getter_func_t)      (hb_unicode_funcs_t *ufuncs,
  					    hb_codepoint_t      unicode);
  
  typedef struct {
    const char         *name;
    func_setter_func_t  func_setter;
    getter_func_t       getter;
    const test_pair_t  *tests;
    unsigned int        num_tests;
    const test_pair_t  *tests_more;
    unsigned int        num_tests_more;
    unsigned int        default_value;
  } property_t;
  
  #define RETURNS_UNICODE_ITSELF ((unsigned int) -1)
  
  #define PROPERTY(name, DEFAULT) \
    { \
      #name, \
      (func_setter_func_t) hb_unicode_funcs_set_##name##_func, \
      (getter_func_t) hb_unicode_##name, \
      name##_tests, \
      G_N_ELEMENTS (name##_tests), \
      name##_tests_more, \
      G_N_ELEMENTS (name##_tests_more), \
      DEFAULT \
    }
  static const property_t properties[] =
  {
    PROPERTY (combining_class, 0),
    PROPERTY (eastasian_width, 1),
    PROPERTY (general_category, (unsigned int) HB_UNICODE_GENERAL_CATEGORY_OTHER_LETTER),
    PROPERTY (mirroring, RETURNS_UNICODE_ITSELF),
    PROPERTY (script, (unsigned int) HB_SCRIPT_UNKNOWN)
  };
  #undef PROPERTY
  
  static void
  test_unicode_properties (gconstpointer user_data)
  {
    hb_unicode_funcs_t *uf = (hb_unicode_funcs_t *) user_data;
    unsigned int i, j;
    gboolean failed = TRUE;
  
    g_assert (hb_unicode_funcs_is_immutable (uf));
    g_assert (hb_unicode_funcs_get_parent (uf));
  
    for (i = 0; i < G_N_ELEMENTS (properties); i++) {
      const property_t *p = &properties[i];
      const test_pair_t *tests;
  
      g_test_message ("Testing property %s", p->name);
      tests = p->tests;
      for (j = 0; j < p->num_tests; j++) {
        g_test_message ("Test %s #%d: U+%04X", p->name, j, tests[j].unicode);
        g_assert_cmphex (p->getter (uf, tests[j].unicode), ==, tests[j].value);
      }
      /* These tests are from Unicode 5.2 onward and older glib/ICU
       * don't get them right.  Just warn instead of assert. */
      tests = p->tests_more;
      for (j = 0; j < p->num_tests_more; j++) {
        g_test_message ("Test %s more #%d: U+%04X", p->name, j, tests[j].unicode);
        if (p->getter (uf, tests[j].unicode) != tests[j].value) {
  	g_test_message ("Soft fail: Received %x, expected %x", p->getter (uf, tests[j].unicode), tests[j].value);
          failed = TRUE;
        }
      }
    }
  
    if (failed)
      g_test_message ("Some property tests failed.  You probably have an old version of one of the libraries used.");
  }
  
  static hb_codepoint_t
  default_value (hb_codepoint_t _default_value, hb_codepoint_t unicode)
  {
    return _default_value == RETURNS_UNICODE_ITSELF ?  unicode : _default_value;
  }
  
  static void
  _test_unicode_properties_nil (hb_unicode_funcs_t *uf)
  {
    unsigned int i, j;
  
    for (i = 0; i < G_N_ELEMENTS (properties); i++) {
      const property_t *p = &properties[i];
      const test_pair_t *tests;
  
      g_test_message ("Testing property %s", p->name);
      tests = p->tests;
      for (j = 0; j < p->num_tests; j++) {
        g_test_message ("Test %s #%d: U+%04X", p->name, j, tests[j].unicode);
        g_assert_cmphex (p->getter (uf, tests[j].unicode), ==, default_value (p->default_value, tests[j].unicode));
      }
      tests = p->tests_more;
      for (j = 0; j < p->num_tests_more; j++) {
        g_test_message ("Test %s more #%d: U+%04X", p->name, j, tests[j].unicode);
        g_assert_cmphex (p->getter (uf, tests[j].unicode), ==, default_value (p->default_value, tests[j].unicode));
      }
    }
  }
  
  static void
  test_unicode_properties_nil (void)
  {
    hb_unicode_funcs_t *uf = hb_unicode_funcs_create (NULL);
  
    g_assert (!hb_unicode_funcs_is_immutable (uf));
    _test_unicode_properties_nil (uf);
  
    hb_unicode_funcs_destroy (uf);
  }
  
  static void
  test_unicode_properties_empty (void)
  {
    hb_unicode_funcs_t *uf = hb_unicode_funcs_get_empty ();
  
    g_assert (uf);
    g_assert (hb_unicode_funcs_is_immutable (uf));
    _test_unicode_properties_nil (uf);
  }
  
  
  static void
  test_unicode_chainup (void)
  {
    hb_unicode_funcs_t *uf, *uf2;
  
    /* Chain-up to nil */
  
    uf = hb_unicode_funcs_create (NULL);
    g_assert (!hb_unicode_funcs_is_immutable (uf));
  
    uf2 = hb_unicode_funcs_create (uf);
    g_assert (hb_unicode_funcs_is_immutable (uf));
    hb_unicode_funcs_destroy (uf);
  
    g_assert (!hb_unicode_funcs_is_immutable (uf2));
    _test_unicode_properties_nil (uf2);
  
    hb_unicode_funcs_destroy (uf2);
  
    /* Chain-up to default */
  
    uf = hb_unicode_funcs_create (hb_unicode_funcs_get_default ());
    g_assert (!hb_unicode_funcs_is_immutable (uf));
  
    uf2 = hb_unicode_funcs_create (uf);
    g_assert (hb_unicode_funcs_is_immutable (uf));
    hb_unicode_funcs_destroy (uf);
  
    g_assert (!hb_unicode_funcs_is_immutable (uf2));
    hb_unicode_funcs_make_immutable (uf2);
    test_unicode_properties (uf2);
  
    hb_unicode_funcs_destroy (uf2);
  
  }
  
  static void
  test_unicode_setters (void)
  {
    hb_unicode_funcs_t *uf;
    unsigned int i;
  
    /* This is cruel: we use script-returning functions to test all properties,
     * but it works. */
  
    for (i = 0; i < G_N_ELEMENTS (properties); i++) {
      const property_t *p = &properties[i];
      data_t data[2] = {{MAGIC0, FALSE}, {MAGIC1, FALSE}};
  
      g_test_message ("Testing property %s", p->name);
  
      uf = hb_unicode_funcs_create (NULL);
      g_assert (!hb_unicode_funcs_is_immutable (uf));
  
      p->func_setter (uf, (get_func_t) simple_get_script, &data[0], free_up);
  
      g_assert_cmphex (p->getter (uf, 'a'), ==, HB_SCRIPT_LATIN);
      g_assert_cmphex (p->getter (uf, '0'), ==, HB_SCRIPT_UNKNOWN);
  
      p->func_setter (uf, (get_func_t) NULL, NULL, NULL);
      g_assert (data[0].freed && !data[1].freed);
  
      g_assert (!hb_unicode_funcs_is_immutable (uf));
      hb_unicode_funcs_make_immutable (uf);
      g_assert (hb_unicode_funcs_is_immutable (uf));
  
      /* Since uf is immutable now, the following setter should do nothing. */
      p->func_setter (uf, (get_func_t) a_is_for_arabic_get_script, &data[1], free_up);
  
      g_assert (data[0].freed && !data[1].freed);
      hb_unicode_funcs_destroy (uf);
      g_assert (data[0].freed && !data[1].freed);
    }
  }
  
  
  
  typedef struct {
    data_t data[2];
  } data_fixture_t;
  
  static void
  data_fixture_init (data_fixture_t *f, gconstpointer user_data)
  {
    f->data[0].value = MAGIC0;
    f->data[1].value = MAGIC1;
  }
  static void
  data_fixture_finish (data_fixture_t *f, gconstpointer user_data)
  {
  }
  
  static void
  test_unicode_subclassing_nil (data_fixture_t *f, gconstpointer user_data)
  {
    hb_unicode_funcs_t *uf, *aa;
  
    uf = hb_unicode_funcs_create (NULL);
  
    aa = hb_unicode_funcs_create (uf);
  
    hb_unicode_funcs_destroy (uf);
  
    hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script,
                                      &f->data[1], free_up);
  
    g_assert_cmphex (hb_unicode_script (aa, 'a'), ==, HB_SCRIPT_ARABIC);
    g_assert_cmphex (hb_unicode_script (aa, 'b'), ==, HB_SCRIPT_UNKNOWN);
  
    g_assert (!f->data[0].freed && !f->data[1].freed);
    hb_unicode_funcs_destroy (aa);
    g_assert (!f->data[0].freed && f->data[1].freed);
  }
  
  static void
  test_unicode_subclassing_default (data_fixture_t *f, gconstpointer user_data)
  {
    hb_unicode_funcs_t *uf, *aa;
  
    uf = hb_unicode_funcs_get_default ();
    aa = hb_unicode_funcs_create (uf);
  
    hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script,
                                      &f->data[1], free_up);
  
    g_assert_cmphex (hb_unicode_script (aa, 'a'), ==, HB_SCRIPT_ARABIC);
    g_assert_cmphex (hb_unicode_script (aa, 'b'), ==, HB_SCRIPT_LATIN);
  
    g_assert (!f->data[0].freed && !f->data[1].freed);
    hb_unicode_funcs_destroy (aa);
    g_assert (!f->data[0].freed && f->data[1].freed);
  }
  
  static void
  test_unicode_subclassing_deep (data_fixture_t *f, gconstpointer user_data)
  {
    hb_unicode_funcs_t *uf, *aa;
  
    uf = hb_unicode_funcs_create (NULL);
  
    hb_unicode_funcs_set_script_func (uf, simple_get_script,
                                      &f->data[0], free_up);
  
    aa = hb_unicode_funcs_create (uf);
  
    hb_unicode_funcs_destroy (uf);
  
    /* make sure the 'uf' didn't get freed, since 'aa' holds a ref */
    g_assert (!f->data[0].freed);
  
    hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script,
                                      &f->data[1], free_up);
  
    g_assert_cmphex (hb_unicode_script (aa, 'a'), ==, HB_SCRIPT_ARABIC);
    g_assert_cmphex (hb_unicode_script (aa, 'b'), ==, HB_SCRIPT_LATIN);
    g_assert_cmphex (hb_unicode_script (aa, '0'), ==, HB_SCRIPT_UNKNOWN);
  
    g_assert (!f->data[0].freed && !f->data[1].freed);
    hb_unicode_funcs_destroy (aa);
    g_assert (f->data[0].freed && f->data[1].freed);
  }
  
  
  static hb_script_t
  script_roundtrip_default (hb_script_t script)
  {
    return hb_script_from_iso15924_tag (hb_script_to_iso15924_tag (script));
  }
  
  #ifdef HAVE_GLIB
  static hb_script_t
  script_roundtrip_glib (hb_script_t script)
  {
    return hb_glib_script_to_script (hb_glib_script_from_script (script));
  }
  #endif
  
  #ifdef HAVE_ICU
  static hb_script_t
  script_roundtrip_icu (hb_script_t script)
  {
    return hb_icu_script_to_script (hb_icu_script_from_script (script));
  }
  #endif
  
  static void
  test_unicode_script_roundtrip (gconstpointer user_data)
  {
    typedef hb_script_t (*roundtrip_func_t) (hb_script_t);
    roundtrip_func_t roundtrip_func = (roundtrip_func_t) user_data;
    unsigned int i;
    gboolean failed = FALSE;
  
    for (i = 0; i < G_N_ELEMENTS (script_tests); i++) {
      const test_pair_t *test = &script_tests[i];
      hb_script_t script = test->value;
  
      g_test_message ("Test script roundtrip #%d: %x", i, script);
      g_assert_cmphex (script, ==, roundtrip_func (script));
    }
    for (i = 0; i < G_N_ELEMENTS (script_tests_more); i++) {
      const test_pair_t *test = &script_tests_more[i];
      hb_script_t script = test->value;
  
      g_test_message ("Test script roundtrip more #%d: %x", i, script);
      if (script != roundtrip_func (script)) {
        g_test_message ("Soft fail: Received %x, expected %x", roundtrip_func (script), script);
        failed = TRUE;
      }
    }
  
    g_assert_cmphex (HB_SCRIPT_INVALID, ==, roundtrip_func (HB_SCRIPT_INVALID));
  
    if (failed)
      g_test_message ("Some script roundtrip tests failed.  You probably have an old version of one of the libraries used.");
  }
  
  
  /* TODO test compose() and decompose() */
  static void
  test_unicode_normalization (gconstpointer user_data)
  {
    hb_unicode_funcs_t *uf = (hb_unicode_funcs_t *) user_data;
    gunichar a, b, ab;
  
  
    /* Test compose() */
  
    /* Not composable */
    g_assert (!hb_unicode_compose (uf, 0x0041, 0x0042, &ab) && ab == 0);
    g_assert (!hb_unicode_compose (uf, 0x0041, 0, &ab) && ab == 0);
    g_assert (!hb_unicode_compose (uf, 0x0066, 0x0069, &ab) && ab == 0);
  
    /* Singletons should not compose */
    g_assert (!hb_unicode_compose (uf, 0x212B, 0, &ab) && ab == 0);
    g_assert (!hb_unicode_compose (uf, 0x00C5, 0, &ab) && ab == 0);
    g_assert (!hb_unicode_compose (uf, 0x2126, 0, &ab) && ab == 0);
    g_assert (!hb_unicode_compose (uf, 0x03A9, 0, &ab) && ab == 0);
  
    /* Non-starter pairs should not compose */
    g_assert (!hb_unicode_compose (uf, 0x0308, 0x0301, &ab) && ab == 0); /* !0x0344 */
    g_assert (!hb_unicode_compose (uf, 0x0F71, 0x0F72, &ab) && ab == 0); /* !0x0F73 */
  
    /* Pairs */
    g_assert (hb_unicode_compose (uf, 0x0041, 0x030A, &ab) && ab == 0x00C5);
    g_assert (hb_unicode_compose (uf, 0x006F, 0x0302, &ab) && ab == 0x00F4);
    g_assert (hb_unicode_compose (uf, 0x1E63, 0x0307, &ab) && ab == 0x1E69);
    g_assert (hb_unicode_compose (uf, 0x0073, 0x0323, &ab) && ab == 0x1E63);
    g_assert (hb_unicode_compose (uf, 0x0064, 0x0307, &ab) && ab == 0x1E0B);
    g_assert (hb_unicode_compose (uf, 0x0064, 0x0323, &ab) && ab == 0x1E0D);
  
    /* Hangul */
    g_assert (hb_unicode_compose (uf, 0xD4CC, 0x11B6, &ab) && ab == 0xD4DB);
    g_assert (hb_unicode_compose (uf, 0x1111, 0x1171, &ab) && ab == 0xD4CC);
    g_assert (hb_unicode_compose (uf, 0xCE20, 0x11B8, &ab) && ab == 0xCE31);
    g_assert (hb_unicode_compose (uf, 0x110E, 0x1173, &ab) && ab == 0xCE20);
  
  
    /* Test decompose() */
  
    /* Not decomposable */
    g_assert (!hb_unicode_decompose (uf, 0x0041, &a, &b) && a == 0x0041 && b == 0);
    g_assert (!hb_unicode_decompose (uf, 0xFB01, &a, &b) && a == 0xFB01 && b == 0);
  
    /* Singletons */
    g_assert (hb_unicode_decompose (uf, 0x212B, &a, &b) && a == 0x00C5 && b == 0);
    g_assert (hb_unicode_decompose (uf, 0x2126, &a, &b) && a == 0x03A9 && b == 0);
  
    /* Non-starter pairs decompose, but not compose */
    g_assert (hb_unicode_decompose (uf, 0x0344, &a, &b) && a == 0x0308 && b == 0x0301);
    g_assert (hb_unicode_decompose (uf, 0x0F73, &a, &b) && a == 0x0F71 && b == 0x0F72);
  
    /* Pairs */
    g_assert (hb_unicode_decompose (uf, 0x00C5, &a, &b) && a == 0x0041 && b == 0x030A);
    g_assert (hb_unicode_decompose (uf, 0x00F4, &a, &b) && a == 0x006F && b == 0x0302);
    g_assert (hb_unicode_decompose (uf, 0x1E69, &a, &b) && a == 0x1E63 && b == 0x0307);
    g_assert (hb_unicode_decompose (uf, 0x1E63, &a, &b) && a == 0x0073 && b == 0x0323);
    g_assert (hb_unicode_decompose (uf, 0x1E0B, &a, &b) && a == 0x0064 && b == 0x0307);
    g_assert (hb_unicode_decompose (uf, 0x1E0D, &a, &b) && a == 0x0064 && b == 0x0323);
  
    /* Hangul */
    g_assert (hb_unicode_decompose (uf, 0xD4DB, &a, &b) && a == 0xD4CC && b == 0x11B6);
    g_assert (hb_unicode_decompose (uf, 0xD4CC, &a, &b) && a == 0x1111 && b == 0x1171);
    g_assert (hb_unicode_decompose (uf, 0xCE31, &a, &b) && a == 0xCE20 && b == 0x11B8);
    g_assert (hb_unicode_decompose (uf, 0xCE20, &a, &b) && a == 0x110E && b == 0x1173);
  
  }
  
  
  
  int
  main (int argc, char **argv)
  {
    hb_test_init (&argc, &argv);
  
    hb_test_add (test_unicode_properties_nil);
    hb_test_add (test_unicode_properties_empty);
  
    hb_test_add_data_flavor (hb_unicode_funcs_get_default (),          "default", test_unicode_properties);
    hb_test_add_data_flavor (hb_unicode_funcs_get_default (),          "default", test_unicode_normalization);
    hb_test_add_data_flavor ((gconstpointer) script_roundtrip_default, "default", test_unicode_script_roundtrip);
  #ifdef HAVE_GLIB
    hb_test_add_data_flavor (hb_glib_get_unicode_funcs (),             "glib",    test_unicode_properties);
    hb_test_add_data_flavor (hb_glib_get_unicode_funcs (),             "glib",    test_unicode_normalization);
    hb_test_add_data_flavor ((gconstpointer) script_roundtrip_glib,    "glib",    test_unicode_script_roundtrip);
  #endif
  #ifdef HAVE_ICU
    hb_test_add_data_flavor (hb_icu_get_unicode_funcs (),              "icu",     test_unicode_properties);
    hb_test_add_data_flavor (hb_icu_get_unicode_funcs (),              "icu",     test_unicode_normalization);
    hb_test_add_data_flavor ((gconstpointer) script_roundtrip_icu,     "icu",     test_unicode_script_roundtrip);
  #endif
  
    hb_test_add (test_unicode_chainup);
  
    hb_test_add (test_unicode_setters);
  
    hb_test_add_fixture (data_fixture, NULL, test_unicode_subclassing_nil);
    hb_test_add_fixture (data_fixture, NULL, test_unicode_subclassing_default);
    hb_test_add_fixture (data_fixture, NULL, test_unicode_subclassing_deep);
  
    return hb_test_run ();
  }
  

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