harfbuzz/test/test-unicode.c

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/*
* Copyright (C) 2011 Codethink Limited
*
* 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
*/
#include "hb-test.h"
/* This file tests the unicode virtual functions interface */
static void
test_nil (void)
{
hb_unicode_funcs_t *uf = hb_unicode_funcs_create (NULL);
g_assert_cmpint (hb_unicode_get_script (uf, 'd'), ==, HB_SCRIPT_UNKNOWN);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
hb_unicode_funcs_destroy (uf);
}
static void
test_glib (void)
{
hb_unicode_funcs_t *uf = hb_glib_get_unicode_funcs ();
g_assert_cmpint (hb_unicode_get_script (uf, 'd'), ==, HB_SCRIPT_LATIN);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0);
hb_unicode_funcs_destroy (uf);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0);
}
static gboolean freed0, freed1;
static int unique_pointer0[1];
static int unique_pointer1[1];
static void free_up (void *up)
{
if (up == unique_pointer0) {
g_assert (!freed0);
freed0 = TRUE;
} else if (up == unique_pointer1) {
g_assert (!freed1);
freed1 = TRUE;
} else {
g_assert_not_reached ();
}
}
static hb_script_t
simple_get_script (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t codepoint,
void *user_data)
{
g_assert (hb_unicode_funcs_get_parent (ufuncs) == NULL);
g_assert (unique_pointer0 == user_data);
if ('a' <= codepoint && codepoint <= 'z')
return HB_SCRIPT_LATIN;
else
return HB_SCRIPT_UNKNOWN;
}
static void
test_custom (void)
{
hb_unicode_funcs_t *uf = hb_unicode_funcs_create (NULL);
hb_unicode_funcs_set_script_func (uf, simple_get_script,
unique_pointer0, free_up);
g_assert_cmpint (hb_unicode_get_script (uf, 'a'), ==, HB_SCRIPT_LATIN);
g_assert_cmpint (hb_unicode_get_script (uf, '0'), ==, HB_SCRIPT_UNKNOWN);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
g_assert (!freed0 && !freed1);
hb_unicode_funcs_destroy (uf);
g_assert (freed0 && !freed1);
freed0 = FALSE;
}
static hb_script_t
a_is_for_arabic_get_script (hb_unicode_funcs_t *ufuncs,
hb_codepoint_t codepoint,
void *user_data)
{
g_assert (hb_unicode_funcs_get_parent (ufuncs) != NULL);
g_assert (user_data == unique_pointer1);
if (codepoint == 'a') {
return HB_SCRIPT_ARABIC;
} else {
hb_unicode_funcs_t *parent = hb_unicode_funcs_get_parent (ufuncs);
return hb_unicode_get_script (parent, codepoint);
}
}
static void
test_subclassing_nil (void)
{
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hb_unicode_funcs_t *uf, *aa;
uf = hb_unicode_funcs_create (NULL);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
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aa = hb_unicode_funcs_create (uf);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 2);
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hb_unicode_funcs_destroy (uf);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script,
unique_pointer1, free_up);
g_assert_cmpint (hb_unicode_get_script (aa, 'a'), ==, HB_SCRIPT_ARABIC);
g_assert_cmpint (hb_unicode_get_script (aa, 'b'), ==, HB_SCRIPT_UNKNOWN);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
g_assert (!freed0 && !freed1);
hb_unicode_funcs_destroy (aa);
g_assert (!freed0 && freed1);
freed1 = FALSE;
}
static void
test_subclassing_glib (void)
{
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hb_unicode_funcs_t *uf, *aa;
uf = hb_glib_get_unicode_funcs ();
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0);
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aa = hb_unicode_funcs_create (uf);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0);
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hb_unicode_funcs_destroy (uf);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 0);
hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script,
unique_pointer1, free_up);
g_assert_cmpint (hb_unicode_get_script (aa, 'a'), ==, HB_SCRIPT_ARABIC);
g_assert_cmpint (hb_unicode_get_script (aa, 'b'), ==, HB_SCRIPT_LATIN);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1);
g_assert (!freed0 && !freed1);
hb_unicode_funcs_destroy (aa);
g_assert (!freed0 && freed1);
freed1 = FALSE;
}
static void
test_subclassing_deep (void)
{
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hb_unicode_funcs_t *uf, *aa;
uf = hb_unicode_funcs_create (NULL);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
hb_unicode_funcs_set_script_func (uf, simple_get_script,
unique_pointer0, free_up);
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aa = hb_unicode_funcs_create (uf);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 2);
hb_unicode_funcs_destroy (uf);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
/* make sure the 'uf' didn't get freed, since 'aa' holds a ref */
g_assert (!freed0);
hb_unicode_funcs_set_script_func (aa, a_is_for_arabic_get_script,
unique_pointer1, free_up);
g_assert_cmpint (hb_unicode_get_script (aa, 'a'), ==, HB_SCRIPT_ARABIC);
g_assert_cmpint (hb_unicode_get_script (aa, 'b'), ==, HB_SCRIPT_LATIN);
g_assert_cmpint (hb_unicode_get_script (aa, '0'), ==, HB_SCRIPT_UNKNOWN);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (aa), ==, 1);
g_assert_cmpint (hb_unicode_funcs_get_reference_count (uf), ==, 1);
g_assert (!freed0 && !freed1);
hb_unicode_funcs_destroy (aa);
g_assert (freed0 && freed1);
freed0 = freed1 = FALSE;
}
int
main (int argc, char **argv)
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/unicode/nil", test_nil);
g_test_add_func ("/unicode/glib", test_glib);
g_test_add_func ("/unicode/custom", test_custom);
g_test_add_func ("/unicode/subclassing/nil", test_subclassing_nil);
g_test_add_func ("/unicode/subclassing/glib", test_subclassing_glib);
g_test_add_func ("/unicode/subclassing/deep", test_subclassing_deep);
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/* XXX test all methods for their defaults and various (glib, icu) implementations. */
/* XXX test glib & icu two-way script conversion */
return g_test_run ();
}