2 * Copyright © 2011 Google, Inc.
4 * This is part of HarfBuzz, a text shaping library.
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.
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
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.
24 * Google Author(s): Behdad Esfahbod
29 /* Unit tests for hb-blob.h */
31 #if defined(HAVE_SYS_MMAN_H) && defined(HAVE_MPROTECT)
35 #ifdef HAVE_SYS_MMAN_H
38 #endif /* HAVE_UNISTD_H */
40 #endif /* HAVE_SYS_MMAN_H */
46 test_blob_empty (void)
53 g_assert (hb_blob_is_immutable (hb_blob_get_empty ()));
54 g_assert (hb_blob_get_empty () != NULL);
56 blob = hb_blob_get_empty ();
57 g_assert (blob == hb_blob_get_empty ());
59 len = hb_blob_get_length (blob);
60 g_assert_cmpint (len, ==, 0);
62 data = hb_blob_get_data (blob, NULL);
63 g_assert (data == NULL);
65 data = hb_blob_get_data (blob, &len);
66 g_assert (data == NULL);
67 g_assert_cmpint (len, ==, 0);
69 data_writable = hb_blob_get_data_writable (blob, NULL);
70 g_assert (data == NULL);
72 data_writable = hb_blob_get_data_writable (blob, &len);
73 g_assert (data_writable == NULL);
74 g_assert_cmpint (len, ==, 0);
77 static const char test_data[] = "test\0data";
79 static const char *blob_names[] = {
84 , "readonly-may-make-writable"
97 free_up (fixture_t *fixture)
99 g_assert_cmpint (fixture->freed, ==, 0);
104 free_up_free (fixture_t *fixture)
107 free (fixture->data);
114 uintptr_t pagesize = -1;
116 #if defined(HAVE_SYSCONF) && defined(_SC_PAGE_SIZE)
117 pagesize = (uintptr_t) sysconf (_SC_PAGE_SIZE);
118 #elif defined(HAVE_SYSCONF) && defined(_SC_PAGESIZE)
119 pagesize = (uintptr_t) sysconf (_SC_PAGESIZE);
120 #elif defined(HAVE_GETPAGESIZE)
121 pagesize = (uintptr_t) getpagesize ();
124 g_assert (pagesize != (uintptr_t) -1);
130 free_up_munmap (fixture_t *fixture)
133 munmap (fixture->data, get_pagesize ());
138 fixture_init (fixture_t *fixture, gconstpointer user_data)
140 hb_memory_mode_t mm = (hb_memory_mode_t) GPOINTER_TO_INT (user_data);
143 hb_destroy_func_t free_func;
145 switch (GPOINTER_TO_INT (user_data))
147 case HB_MEMORY_MODE_DUPLICATE:
149 len = sizeof (test_data);
150 free_func = (hb_destroy_func_t) free_up;
153 case HB_MEMORY_MODE_READONLY:
155 len = sizeof (test_data);
156 free_func = (hb_destroy_func_t) free_up;
159 case HB_MEMORY_MODE_WRITABLE:
160 data = strndup (test_data, sizeof (test_data));
161 len = sizeof (test_data);
162 free_func = (hb_destroy_func_t) free_up_free;
166 case HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE:
168 uintptr_t pagesize = get_pagesize ();
170 data = mmap (NULL, pagesize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
171 g_assert (data != (char *) -1);
172 memcpy ((char *) data, test_data, sizeof (test_data));
173 mprotect ((char *) data, pagesize, PROT_READ);
174 len = sizeof (test_data);
175 free_func = (hb_destroy_func_t) free_up_munmap;
181 g_assert_not_reached ();
185 fixture->data = (char *) data;
187 fixture->blob = hb_blob_create (data, len, mm, fixture, free_func);
191 fixture_finish (fixture_t *fixture, gconstpointer user_data)
193 hb_blob_destroy (fixture->blob);
194 g_assert_cmpint (fixture->freed, ==, 1);
199 test_blob (fixture_t *fixture, gconstpointer user_data)
201 hb_blob_t *b = fixture->blob;
202 hb_memory_mode_t mm = GPOINTER_TO_INT (user_data);
210 len = hb_blob_get_length (b);
211 g_assert_cmpint (len, ==, fixture->len);
213 data = hb_blob_get_data (b, &len);
214 g_assert_cmpint (len, ==, fixture->len);
215 if (mm == HB_MEMORY_MODE_DUPLICATE) {
216 g_assert (data != fixture->data);
217 g_assert_cmpint (fixture->freed, ==, 1);
218 mm = HB_MEMORY_MODE_WRITABLE;
220 g_assert (data == fixture->data);
221 g_assert_cmpint (fixture->freed, ==, 0);
224 data_writable = hb_blob_get_data_writable (b, &len);
225 g_assert_cmpint (len, ==, fixture->len);
226 g_assert (data_writable);
227 g_assert (0 == memcmp (data_writable, fixture->data, fixture->len));
228 if (mm == HB_MEMORY_MODE_READONLY) {
229 g_assert (data_writable != data);
230 g_assert_cmpint (fixture->freed, ==, 1);
232 g_assert (data_writable == data);
235 data = hb_blob_get_data (b, &len);
236 g_assert_cmpint (len, ==, fixture->len);
237 g_assert (data == data_writable);
239 memset (data_writable, 0, fixture->len);
241 /* Now, make it immutable and watch get_data_writable() fail */
243 g_assert (!hb_blob_is_immutable (b));
244 hb_blob_make_immutable (b);
245 g_assert (hb_blob_is_immutable (b));
247 data_writable = hb_blob_get_data_writable (b, &len);
248 g_assert (!data_writable);
249 g_assert_cmpint (len, ==, 0);
251 data = hb_blob_get_data (b, &len);
252 g_assert_cmpint (len, ==, fixture->len);
253 for (i = 0; i < len; i++)
254 g_assert ('\0' == data[i]);
258 test_blob_subblob (fixture_t *fixture, gconstpointer user_data)
260 hb_blob_t *b = fixture->blob;
264 fixture->blob = hb_blob_create_sub_blob (b, 1, fixture->len);
267 test_blob (fixture, user_data);
275 main (int argc, char **argv)
279 hb_test_init (&argc, &argv);
281 hb_test_add (test_blob_empty);
283 for (i = 0; i < G_N_ELEMENTS (blob_names); i++)
285 const void *blob_type = GINT_TO_POINTER (i);
286 const char *blob_name = blob_names[i];
288 hb_test_add_fixture_flavor (fixture, blob_type, blob_name, test_blob);
289 hb_test_add_fixture_flavor (fixture, blob_type, blob_name, test_blob_subblob);
296 return hb_test_run ();