216 lines
7.0 KiB
C
216 lines
7.0 KiB
C
/*
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* Copyright (C) 2011 Codethink Limited
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*
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* This is part of HarfBuzz, a text shaping library.
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*
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* Permission is hereby granted, without written agreement and without
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* license or royalty fees, to use, copy, modify, and distribute this
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* software and its documentation for any purpose, provided that the
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* above copyright notice and the following two paragraphs appear in
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* all copies of this software.
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*
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Codethink Author(s): Ryan Lortie
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*/
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#include "hb-test.h"
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/* This file tests the unicode virtual functions interface */
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static void
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test_nil (void)
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{
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hb_unicode_funcs_t *uf = hb_unicode_funcs_create (NULL);
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g_assert_cmpint (hb_unicode_get_script (uf, 'd'), ==, HB_SCRIPT_UNKNOWN);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
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hb_unicode_funcs_destroy (uf);
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}
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static void
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test_glib (void)
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{
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hb_unicode_funcs_t *uf = hb_glib_get_unicode_funcs ();
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g_assert_cmpint (hb_unicode_get_script (uf, 'd'), ==, HB_SCRIPT_LATIN);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0);
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hb_unicode_funcs_destroy (uf);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0);
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}
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static gboolean freed0, freed1;
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static int unique_pointer0[1];
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static int unique_pointer1[1];
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static void free_up (void *up)
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{
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if (up == unique_pointer0) {
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g_assert (!freed0);
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freed0 = TRUE;
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} else if (up == unique_pointer1) {
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g_assert (!freed1);
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freed1 = TRUE;
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} else {
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g_assert_not_reached ();
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}
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}
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static hb_script_t
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simple_get_script (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t codepoint,
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void *user_data)
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{
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g_assert (hb_unicode_funcs_get_parent (ufuncs) == NULL);
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g_assert (unique_pointer0 == user_data);
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if ('a' <= codepoint && codepoint <= 'z')
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return HB_SCRIPT_LATIN;
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else
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return HB_SCRIPT_UNKNOWN;
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}
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static void
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test_custom (void)
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{
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hb_unicode_funcs_t *uf = hb_unicode_funcs_create (NULL);
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hb_unicode_funcs_set_script_func (uf, simple_get_script,
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unique_pointer0, free_up);
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g_assert_cmpint (hb_unicode_get_script (uf, 'a'), ==, HB_SCRIPT_LATIN);
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g_assert_cmpint (hb_unicode_get_script (uf, '0'), ==, HB_SCRIPT_UNKNOWN);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
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g_assert (!freed0 && !freed1);
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hb_unicode_funcs_destroy (uf);
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g_assert (freed0 && !freed1);
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freed0 = FALSE;
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}
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static hb_script_t
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a_is_for_arabic_get_script (hb_unicode_funcs_t *ufuncs,
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hb_codepoint_t codepoint,
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void *user_data)
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{
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g_assert (hb_unicode_funcs_get_parent (ufuncs) != NULL);
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g_assert (user_data == unique_pointer1);
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if (codepoint == 'a') {
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return HB_SCRIPT_ARABIC;
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} else {
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hb_unicode_funcs_t *parent = hb_unicode_funcs_get_parent (ufuncs);
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return hb_unicode_get_script (parent, codepoint);
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}
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}
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static void
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test_subclassing_nil (void)
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{
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hb_unicode_funcs_t *uf = hb_unicode_funcs_create (NULL);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
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hb_unicode_funcs_t *aa = hb_unicode_funcs_create (uf);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 2);
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hb_unicode_funcs_destroy (uf);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
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hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script,
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unique_pointer1, free_up);
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g_assert_cmpint (hb_unicode_get_script (aa, 'a'), ==, HB_SCRIPT_ARABIC);
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g_assert_cmpint (hb_unicode_get_script (aa, 'b'), ==, HB_SCRIPT_UNKNOWN);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
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g_assert (!freed0 && !freed1);
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hb_unicode_funcs_destroy (aa);
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g_assert (!freed0 && freed1);
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freed1 = FALSE;
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}
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static void
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test_subclassing_glib (void)
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{
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hb_unicode_funcs_t *uf = hb_glib_get_unicode_funcs ();
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0);
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hb_unicode_funcs_t *aa = hb_unicode_funcs_create (uf);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0);
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hb_unicode_funcs_destroy (uf);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0);
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hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script,
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unique_pointer1, free_up);
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g_assert_cmpint (hb_unicode_get_script (aa, 'a'), ==, HB_SCRIPT_ARABIC);
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g_assert_cmpint (hb_unicode_get_script (aa, 'b'), ==, HB_SCRIPT_LATIN);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1);
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g_assert (!freed0 && !freed1);
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hb_unicode_funcs_destroy (aa);
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g_assert (!freed0 && freed1);
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freed1 = FALSE;
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}
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static void
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test_subclassing_deep (void)
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{
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hb_unicode_funcs_t *uf = hb_unicode_funcs_create (NULL);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
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hb_unicode_funcs_set_script_func (uf, simple_get_script,
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unique_pointer0, free_up);
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hb_unicode_funcs_t *aa = hb_unicode_funcs_create (uf);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 2);
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hb_unicode_funcs_destroy (uf);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
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/* make sure the 'uf' didn't get freed, since 'aa' holds a ref */
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g_assert (!freed0);
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hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script,
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unique_pointer1, free_up);
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g_assert_cmpint (hb_unicode_get_script (aa, 'a'), ==, HB_SCRIPT_ARABIC);
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g_assert_cmpint (hb_unicode_get_script (aa, 'b'), ==, HB_SCRIPT_LATIN);
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g_assert_cmpint (hb_unicode_get_script (aa, '0'), ==, HB_SCRIPT_UNKNOWN);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1);
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g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
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g_assert (!freed0 && !freed1);
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hb_unicode_funcs_destroy (aa);
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g_assert (freed0 && freed1);
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freed0 = freed1 = FALSE;
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}
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int
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main (int argc, char **argv)
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{
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g_test_init (&argc, &argv, NULL);
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g_test_add_func ("/unicode/nil", test_nil);
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g_test_add_func ("/unicode/glib", test_glib);
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g_test_add_func ("/unicode/custom", test_custom);
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g_test_add_func ("/unicode/subclassing/nil", test_subclassing_nil);
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g_test_add_func ("/unicode/subclassing/glib", test_subclassing_glib);
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g_test_add_func ("/unicode/subclassing/deep", test_subclassing_deep);
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return g_test_run ();
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}
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