harfbuzz/test/test-font.c

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/*
* 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.
*
* Google Author(s): Behdad Esfahbod
*/
#include "hb-test.h"
/* Unit tests for hb-font.h */
static void
test_face_empty (void)
{
g_assert (hb_face_get_empty ());
g_assert (hb_face_get_empty () == hb_face_create (hb_blob_get_empty (), 0));
g_assert (hb_face_get_empty () == hb_face_create (NULL, 0));
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g_assert (hb_face_reference_table (hb_face_get_empty (), HB_TAG('h','e','a','d')) == hb_blob_get_empty ());
}
static void
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free_up (void *user_data)
{
int *freed = (int *) user_data;
g_assert (!*freed);
(*freed)++;
}
static hb_blob_t *
get_table (hb_tag_t tag, void *user_data)
{
return hb_blob_get_empty ();
}
static void
test_face_fortables (void)
{
hb_face_t *face;
int freed = 0;
face = hb_face_create_for_tables (get_table, &freed, free_up);
g_assert (!freed);
hb_face_destroy (face);
g_assert (freed);
}
static void
test_fontfuncs_empty (void)
{
g_assert (hb_font_funcs_get_empty ());
g_assert (hb_font_funcs_is_immutable (hb_font_funcs_get_empty ()));
}
static void
test_font_empty (void)
{
g_assert (hb_font_get_empty ());
g_assert (hb_font_get_empty () == hb_font_create (hb_face_get_empty ()));
g_assert (hb_font_get_empty () == hb_font_create (NULL));
g_assert (hb_font_get_empty () == hb_font_create_sub_font (NULL));
g_assert (hb_font_is_immutable (hb_font_get_empty ()));
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g_assert (hb_font_get_face (hb_font_get_empty ()) == hb_face_get_empty ());
g_assert (hb_font_get_parent (hb_font_get_empty ()) == NULL);
}
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static const char test_data[] = "test\0data";
static void
test_font_properties (void)
{
hb_blob_t *blob;
hb_face_t *face;
hb_font_t *font;
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hb_font_t *subfont;
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int x_scale, y_scale;
unsigned int x_ppem, y_ppem;
blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
face = hb_face_create (blob, 0);
hb_blob_destroy (blob);
font = hb_font_create (face);
hb_face_destroy (face);
g_assert (hb_font_get_face (font) == face);
g_assert (hb_font_get_parent (font) == NULL);
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/* Check scale */
hb_font_get_scale (font, NULL, NULL);
x_scale = y_scale = 13;
hb_font_get_scale (font, &x_scale, NULL);
g_assert_cmpint (x_scale, ==, 0);
x_scale = y_scale = 13;
hb_font_get_scale (font, NULL, &y_scale);
g_assert_cmpint (y_scale, ==, 0);
x_scale = y_scale = 13;
hb_font_get_scale (font, &x_scale, &y_scale);
g_assert_cmpint (x_scale, ==, 0);
g_assert_cmpint (y_scale, ==, 0);
hb_font_set_scale (font, 17, 19);
x_scale = y_scale = 13;
hb_font_get_scale (font, &x_scale, &y_scale);
g_assert_cmpint (x_scale, ==, 17);
g_assert_cmpint (y_scale, ==, 19);
/* Check ppem */
hb_font_get_ppem (font, NULL, NULL);
x_ppem = y_ppem = 13;
hb_font_get_ppem (font, &x_ppem, NULL);
g_assert_cmpint (x_ppem, ==, 0);
x_ppem = y_ppem = 13;
hb_font_get_ppem (font, NULL, &y_ppem);
g_assert_cmpint (y_ppem, ==, 0);
x_ppem = y_ppem = 13;
hb_font_get_ppem (font, &x_ppem, &y_ppem);
g_assert_cmpint (x_ppem, ==, 0);
g_assert_cmpint (y_ppem, ==, 0);
hb_font_set_ppem (font, 17, 19);
x_ppem = y_ppem = 13;
hb_font_get_ppem (font, &x_ppem, &y_ppem);
g_assert_cmpint (x_ppem, ==, 17);
g_assert_cmpint (y_ppem, ==, 19);
/* Check immutable */
g_assert (!hb_font_is_immutable (font));
hb_font_make_immutable (font);
g_assert (hb_font_is_immutable (font));
hb_font_set_scale (font, 10, 12);
x_scale = y_scale = 13;
hb_font_get_scale (font, &x_scale, &y_scale);
g_assert_cmpint (x_scale, ==, 17);
g_assert_cmpint (y_scale, ==, 19);
hb_font_set_ppem (font, 10, 12);
x_ppem = y_ppem = 13;
hb_font_get_ppem (font, &x_ppem, &y_ppem);
g_assert_cmpint (x_ppem, ==, 17);
g_assert_cmpint (y_ppem, ==, 19);
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/* sub_font now */
subfont = hb_font_create_sub_font (font);
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hb_font_destroy (font);
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g_assert (hb_font_get_parent (subfont) == font);
g_assert (hb_font_get_face (subfont) == face);
/* scale */
x_scale = y_scale = 13;
hb_font_get_scale (subfont, &x_scale, &y_scale);
g_assert_cmpint (x_scale, ==, 17);
g_assert_cmpint (y_scale, ==, 19);
hb_font_set_scale (subfont, 10, 12);
x_scale = y_scale = 13;
hb_font_get_scale (subfont, &x_scale, &y_scale);
g_assert_cmpint (x_scale, ==, 10);
g_assert_cmpint (y_scale, ==, 12);
x_scale = y_scale = 13;
hb_font_get_scale (font, &x_scale, &y_scale);
g_assert_cmpint (x_scale, ==, 17);
g_assert_cmpint (y_scale, ==, 19);
/* ppem */
x_ppem = y_ppem = 13;
hb_font_get_ppem (subfont, &x_ppem, &y_ppem);
g_assert_cmpint (x_ppem, ==, 17);
g_assert_cmpint (y_ppem, ==, 19);
hb_font_set_ppem (subfont, 10, 12);
x_ppem = y_ppem = 13;
hb_font_get_ppem (subfont, &x_ppem, &y_ppem);
g_assert_cmpint (x_ppem, ==, 10);
g_assert_cmpint (y_ppem, ==, 12);
x_ppem = y_ppem = 13;
hb_font_get_ppem (font, &x_ppem, &y_ppem);
g_assert_cmpint (x_ppem, ==, 17);
g_assert_cmpint (y_ppem, ==, 19);
hb_font_destroy (subfont);
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}
int
main (int argc, char **argv)
{
hb_test_init (&argc, &argv);
hb_test_add (test_face_empty);
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hb_test_add (test_face_fortables);
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hb_test_add (test_fontfuncs_empty);
hb_test_add (test_font_empty);
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hb_test_add (test_font_properties);
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/*
* hb_font_set_funcs
* hb_font_funcs
*/
return hb_test_run();
}