148 lines
4.5 KiB
C
148 lines
4.5 KiB
C
/*
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* Copyright © 2018 Google, Inc.
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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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* Google Author(s): Garret Rieger
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*/
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#include "hb-test.h"
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#include "hb-subset-test.h"
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/* Unit tests for hdmx subsetting */
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static void
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test_subset_hdmx_simple_subset (void)
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{
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hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
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hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.ttf");
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hb_set_t *codepoints = hb_set_create ();
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hb_face_t *face_abc_subset;
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hb_set_add (codepoints, 'a');
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hb_set_add (codepoints, 'c');
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face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
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hb_set_destroy (codepoints);
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hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('h','d','m','x'));
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hb_face_destroy (face_abc_subset);
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hb_face_destroy (face_abc);
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hb_face_destroy (face_ac);
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}
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static void
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test_subset_hdmx_multiple_device_records (void)
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{
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hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.multihdmx.abc.ttf");
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hb_face_t *face_a = hb_test_open_font_file ("fonts/Roboto-Regular.multihdmx.a.ttf");
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hb_set_t *codepoints = hb_set_create ();
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hb_face_t *face_abc_subset;
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hb_set_add (codepoints, 'a');
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face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
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hb_set_destroy (codepoints);
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hb_subset_test_check (face_a, face_abc_subset, HB_TAG ('h','d','m','x'));
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hb_face_destroy (face_abc_subset);
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hb_face_destroy (face_abc);
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hb_face_destroy (face_a);
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}
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static void
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test_subset_hdmx_invalid (void)
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{
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hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/crash-ccc61c92d589f895174cdef6ff2e3b20e9999a1a");
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hb_subset_input_t *input = hb_subset_input_create_or_fail ();
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hb_set_t *codepoints = hb_subset_input_unicode_set (input);
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hb_face_t *subset;
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hb_set_add (codepoints, 'a');
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hb_set_add (codepoints, 'b');
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hb_set_add (codepoints, 'c');
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subset = hb_subset (face, input);
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g_assert (subset);
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g_assert (subset == hb_face_get_empty ());
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hb_subset_input_destroy (input);
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hb_face_destroy (subset);
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hb_face_destroy (face);
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}
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static void
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test_subset_hdmx_fails_sanitize (void)
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{
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hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/clusterfuzz-testcase-minimized-hb-subset-fuzzer-5609911946838016");
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hb_subset_input_t *input = hb_subset_input_create_or_fail ();
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hb_set_t *codepoints = hb_subset_input_unicode_set (input);
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hb_face_t *subset;
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hb_set_add (codepoints, 'a');
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hb_set_add (codepoints, 'b');
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hb_set_add (codepoints, 'c');
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subset = hb_subset (face, input);
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g_assert (subset);
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g_assert (subset == hb_face_get_empty ());
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hb_subset_input_destroy (input);
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hb_face_destroy (subset);
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hb_face_destroy (face);
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}
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static void
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test_subset_hdmx_noop (void)
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{
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hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
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hb_set_t *codepoints = hb_set_create();
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hb_face_t *face_abc_subset;
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hb_set_add (codepoints, 'a');
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hb_set_add (codepoints, 'b');
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hb_set_add (codepoints, 'c');
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face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
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hb_set_destroy (codepoints);
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hb_subset_test_check (face_abc, face_abc_subset, HB_TAG ('h','d','m','x'));
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hb_face_destroy (face_abc_subset);
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hb_face_destroy (face_abc);
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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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hb_test_init (&argc, &argv);
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hb_test_add (test_subset_hdmx_simple_subset);
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hb_test_add (test_subset_hdmx_multiple_device_records);
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hb_test_add (test_subset_hdmx_invalid);
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hb_test_add (test_subset_hdmx_fails_sanitize);
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hb_test_add (test_subset_hdmx_noop);
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return hb_test_run();
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}
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