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): Roderick Sheeter
25  */
26 
27 #include "hb-test.h"
28 #include "hb-subset-test.h"
29 
30 /* Unit tests for cmap subsetting */
31 
32 static void
test_subset_cmap(void)33 test_subset_cmap (void)
34 {
35   hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
36   hb_face_t *face_ac = hb_test_open_font_file ("fonts/Roboto-Regular.ac.ttf");
37 
38   hb_set_t *codepoints = hb_set_create ();
39   hb_face_t *face_abc_subset;
40   hb_set_add (codepoints, 97);
41   hb_set_add (codepoints, 99);
42   face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
43   hb_set_destroy (codepoints);
44 
45   hb_subset_test_check (face_ac, face_abc_subset, HB_TAG ('c','m','a','p'));
46 
47   hb_face_destroy (face_abc_subset);
48   hb_face_destroy (face_abc);
49   hb_face_destroy (face_ac);
50 }
51 
52 static void
test_subset_cmap_non_consecutive_glyphs(void)53 test_subset_cmap_non_consecutive_glyphs (void)
54 {
55   hb_face_t *face = hb_test_open_font_file ("fonts/Roboto-Regular.D7,D8,D9,DA,DE.ttf");
56 
57   hb_set_t *codepoints = hb_set_create ();
58   hb_face_t *face_subset;
59   hb_set_add (codepoints, 0xD7);
60   hb_set_add (codepoints, 0xD8);
61   hb_set_add (codepoints, 0xD9);
62   hb_set_add (codepoints, 0xDA);
63   hb_set_add (codepoints, 0xDE);
64 
65   face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints));
66   hb_set_destroy (codepoints);
67 
68   hb_subset_test_check (face, face_subset, HB_TAG ('c','m','a','p'));
69 
70   hb_face_destroy (face_subset);
71   hb_face_destroy (face);
72 }
73 
74 static void
test_subset_cmap_noop(void)75 test_subset_cmap_noop (void)
76 {
77   hb_face_t *face_abc = hb_test_open_font_file ("fonts/Roboto-Regular.abc.ttf");
78 
79   hb_set_t *codepoints = hb_set_create();
80   hb_face_t *face_abc_subset;
81   hb_set_add (codepoints, 97);
82   hb_set_add (codepoints, 98);
83   hb_set_add (codepoints, 99);
84   face_abc_subset = hb_subset_test_create_subset (face_abc, hb_subset_test_create_input (codepoints));
85   hb_set_destroy (codepoints);
86 
87   hb_subset_test_check (face_abc, face_abc_subset, HB_TAG ('c','m','a','p'));
88 
89   hb_face_destroy (face_abc_subset);
90   hb_face_destroy (face_abc);
91 }
92 
93 // TODO(rsheeter) test cmap to no codepoints
94 
95 int
main(int argc,char ** argv)96 main (int argc, char **argv)
97 {
98   hb_test_init (&argc, &argv);
99 
100   hb_test_add (test_subset_cmap);
101   hb_test_add (test_subset_cmap_noop);
102   hb_test_add (test_subset_cmap_non_consecutive_glyphs);
103 
104   return hb_test_run();
105 }
106