1 /*
2 * Copyright © 2018 Google, Inc.
3 *
4 * This is part of HarfBuzz, a text shaping library.
5 *
6 * Permission is hereby granted, without written agreement and without
7 * license or royalty fees, to use, copy, modify, and distribute this
8 * software and its documentation for any purpose, provided that the
9 * above copyright notice and the following two paragraphs appear in
10 * all copies of this software.
11 *
12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
16 * DAMAGE.
17 *
18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
23 *
24 * Google Author(s): Garret Rieger
25 */
26
27 #include "hb-test.h"
28 #include "hb-subset-test.h"
29
30 /* Unit tests for hdmx subsetting */
31
32
33 static void
test_subset_hdmx_simple_subset(void)34 test_subset_hdmx_simple_subset (void)
35 {
36 hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
37 hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.ttf");
38
39 hb_set_t *codepoints = hb_set_create ();
40 hb_face_t *face_abc_subset;
41 hb_set_add (codepoints, 'a');
42 hb_set_add (codepoints, 'c');
43 face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
44 hb_set_destroy (codepoints);
45
46 hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('h','d','m','x'));
47
48 hb_face_destroy (face_abc_subset);
49 hb_face_destroy (face_abc);
50 hb_face_destroy (face_ac);
51 }
52
53 static void
test_subset_hdmx_multiple_device_records(void)54 test_subset_hdmx_multiple_device_records (void)
55 {
56 hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.multihdmx.abc.ttf");
57 hb_face_t *face_a = hb_test_open_font_file ("fonts/Roboto-Regular.multihdmx.a.ttf");
58
59 hb_set_t *codepoints = hb_set_create ();
60 hb_face_t *face_abc_subset;
61 hb_set_add (codepoints, 'a');
62 face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
63 hb_set_destroy (codepoints);
64
65 hb_subset_test_check (face_a, face_abc_subset, HB_TAG ('h','d','m','x'));
66
67 hb_face_destroy (face_abc_subset);
68 hb_face_destroy (face_abc);
69 hb_face_destroy (face_a);
70 }
71
72 static void
test_subset_hdmx_invalid(void)73 test_subset_hdmx_invalid (void)
74 {
75 hb_face_t *face = hb_test_open_font_file ("../fuzzing/fonts/crash-ccc61c92d589f895174cdef6ff2e3b20e9999a1a");
76
77 hb_subset_input_t *input = hb_subset_input_create_or_fail ();
78 hb_set_t *codepoints = hb_subset_input_unicode_set (input);
79 hb_face_t *subset;
80
81 hb_set_add (codepoints, 'a');
82 hb_set_add (codepoints, 'b');
83 hb_set_add (codepoints, 'c');
84
85 subset = hb_subset (face, input);
86 g_assert (subset);
87 g_assert (subset == hb_face_get_empty ());
88
89 hb_subset_input_destroy (input);
90 hb_face_destroy (subset);
91 hb_face_destroy (face);
92 }
93
94 static void
test_subset_hdmx_noop(void)95 test_subset_hdmx_noop (void)
96 {
97 hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
98
99 hb_set_t *codepoints = hb_set_create();
100 hb_face_t *face_abc_subset;
101 hb_set_add (codepoints, 'a');
102 hb_set_add (codepoints, 'b');
103 hb_set_add (codepoints, 'c');
104 face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
105 hb_set_destroy (codepoints);
106
107 hb_subset_test_check (face_abc, face_abc_subset, HB_TAG ('h','d','m','x'));
108
109 hb_face_destroy (face_abc_subset);
110 hb_face_destroy (face_abc);
111 }
112
113 int
main(int argc,char ** argv)114 main (int argc, char **argv)
115 {
116 hb_test_init (&argc, &argv);
117
118 hb_test_add (test_subset_hdmx_simple_subset);
119 hb_test_add (test_subset_hdmx_multiple_device_records);
120 hb_test_add (test_subset_hdmx_invalid);
121 hb_test_add (test_subset_hdmx_noop);
122
123 return hb_test_run();
124 }
125