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/*
* Copyright © 2018 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): Garret Rieger
*/
#include "hb-test.h"
#include "hb-subset-test.h"
/* Unit tests for hb-subset-glyf.h */
static void
test_subset_32_tables (void)
{
hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/oom-6ef8c96d3710262511bcc730dce9c00e722cb653");
hb_subset_input_t *input = hb_subset_input_create_or_fail ();
hb_set_t *codepoints = hb_subset_input_unicode_set (input);
hb_face_t *subset;
hb_set_add (codepoints, 'a');
hb_set_add (codepoints, 'b');
hb_set_add (codepoints, 'c');
subset = hb_subset_or_fail (face, input);
g_assert (subset);
g_assert (subset != hb_face_get_empty ());
hb_subset_input_destroy (input);
hb_face_destroy (subset);
hb_face_destroy (face);
}
static void
test_subset_no_inf_loop (void)
{
hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5521982557782016");
hb_subset_input_t *input = hb_subset_input_create_or_fail ();
hb_set_t *codepoints = hb_subset_input_unicode_set (input);
hb_face_t *subset;
hb_set_add (codepoints, 'a');
hb_set_add (codepoints, 'b');
hb_set_add (codepoints, 'c');
subset = hb_subset_or_fail (face, input);
g_assert (!subset);
hb_subset_input_destroy (input);
hb_face_destroy (subset);
hb_face_destroy (face);
}
static void
test_subset_crash (void)
{
hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/crash-4b60576767ee4d9fe1cc10959d89baf73d4e8249");
hb_subset_input_t *input = hb_subset_input_create_or_fail ();
hb_set_t *codepoints = hb_subset_input_unicode_set (input);
hb_face_t *subset;
hb_set_add (codepoints, 'a');
hb_set_add (codepoints, 'b');
hb_set_add (codepoints, 'c');
subset = hb_subset_or_fail (face, input);
g_assert (!subset);
hb_subset_input_destroy (input);
hb_face_destroy (subset);
hb_face_destroy (face);
}
static void
test_subset_set_flags (void)
{
hb_subset_input_t *input = hb_subset_input_create_or_fail ();
g_assert (hb_subset_input_get_flags (input) == HB_SUBSET_FLAGS_DEFAULT);
hb_subset_input_set_flags (input,
HB_SUBSET_FLAGS_NAME_LEGACY |
HB_SUBSET_FLAGS_NOTDEF_OUTLINE |
HB_SUBSET_FLAGS_GLYPH_NAMES);
g_assert (hb_subset_input_get_flags (input) ==
(hb_subset_flags_t) (
HB_SUBSET_FLAGS_NAME_LEGACY |
HB_SUBSET_FLAGS_NOTDEF_OUTLINE |
HB_SUBSET_FLAGS_GLYPH_NAMES));
hb_subset_input_set_flags (input,
HB_SUBSET_FLAGS_NAME_LEGACY |
HB_SUBSET_FLAGS_NOTDEF_OUTLINE |
HB_SUBSET_FLAGS_NO_PRUNE_UNICODE_RANGES);
g_assert (hb_subset_input_get_flags (input) ==
(hb_subset_flags_t) (
HB_SUBSET_FLAGS_NAME_LEGACY |
HB_SUBSET_FLAGS_NOTDEF_OUTLINE |
HB_SUBSET_FLAGS_NO_PRUNE_UNICODE_RANGES));
hb_subset_input_destroy (input);
}
static void
test_subset_sets (void)
{
hb_subset_input_t *input = hb_subset_input_create_or_fail ();
hb_set_t* set = hb_set_create ();
hb_set_add (hb_subset_input_set (input, HB_SUBSET_SETS_GLYPH_INDEX), 83);
hb_set_add (hb_subset_input_set (input, HB_SUBSET_SETS_UNICODE), 85);
hb_set_clear (hb_subset_input_set (input, HB_SUBSET_SETS_LAYOUT_FEATURE_TAG));
hb_set_add (hb_subset_input_set (input, HB_SUBSET_SETS_LAYOUT_FEATURE_TAG), 87);
hb_set_add (set, 83);
g_assert (hb_set_is_equal (hb_subset_input_glyph_set (input), set));
hb_set_clear (set);
hb_set_add (set, 85);
g_assert (hb_set_is_equal (hb_subset_input_unicode_set (input), set));
hb_set_clear (set);
hb_set_add (set, 87);
g_assert (hb_set_is_equal (hb_subset_input_set (input, HB_SUBSET_SETS_LAYOUT_FEATURE_TAG), set));
hb_set_clear (set);
hb_set_destroy (set);
hb_subset_input_destroy (input);
}
static void
test_subset_plan (void)
{
hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.ttf");
hb_set_t *codepoints = hb_set_create();
hb_set_add (codepoints, 97);
hb_set_add (codepoints, 99);
hb_subset_input_t* input = hb_subset_test_create_input (codepoints);
hb_set_destroy (codepoints);
hb_subset_plan_t* plan = hb_subset_plan_create_or_fail (face_abc, input);
g_assert (plan);
const hb_map_t* mapping = hb_subset_plan_old_to_new_glyph_mapping (plan);
g_assert (hb_map_get (mapping, 1) == 1);
g_assert (hb_map_get (mapping, 3) == 2);
mapping = hb_subset_plan_new_to_old_glyph_mapping (plan);
g_assert (hb_map_get (mapping, 1) == 1);
g_assert (hb_map_get (mapping, 2) == 3);
mapping = hb_subset_plan_unicode_to_old_glyph_mapping (plan);
g_assert (hb_map_get (mapping, 0x63) == 3);
hb_face_t* face_abc_subset = hb_subset_plan_execute_or_fail (plan);
hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('l','o','c', 'a'));
hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('g','l','y','f'));
hb_subset_input_destroy (input);
hb_subset_plan_destroy (plan);
hb_face_destroy (face_abc_subset);
hb_face_destroy (face_abc);
hb_face_destroy (face_ac);
}
static hb_blob_t*
_ref_table (hb_face_t *face, hb_tag_t tag, void *user_data)
{
return hb_face_reference_table ((hb_face_t*) user_data, tag);
}
static void
test_subset_create_for_tables_face (void)
{
hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.ttf");
hb_face_t *face_create_for_tables = hb_face_create_for_tables (
_ref_table,
face_abc,
NULL);
hb_set_t *codepoints = hb_set_create();
hb_set_add (codepoints, 97);
hb_set_add (codepoints, 99);
hb_subset_input_t* input = hb_subset_test_create_input (codepoints);
hb_set_destroy (codepoints);
hb_face_t* face_abc_subset = hb_subset_or_fail (face_create_for_tables, input);
hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('l','o','c', 'a'));
hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('g','l','y','f'));
hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('g','a','s','p'));
hb_subset_input_destroy (input);
hb_face_destroy (face_abc_subset);
hb_face_destroy (face_create_for_tables);
hb_face_destroy (face_abc);
hb_face_destroy (face_ac);
}
int
main (int argc, char **argv)
{
hb_test_init (&argc, &argv);
hb_test_add (test_subset_32_tables);
hb_test_add (test_subset_no_inf_loop);
hb_test_add (test_subset_crash);
hb_test_add (test_subset_set_flags);
hb_test_add (test_subset_sets);
hb_test_add (test_subset_plan);
hb_test_add (test_subset_create_for_tables_face);
return hb_test_run();
}
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