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1 /*
2  * Copyright © 2011  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): Behdad Esfahbod
25  */
26 
27 #ifndef HB_TEST_H
28 #define HB_TEST_H
29 
30 #ifdef HAVE_CONFIG_H
31 #include <config.h>
32 #endif
33 
34 #include <hb-glib.h>
35 
36 #include <stdlib.h>
37 #include <string.h>
38 #include <stdio.h>
39 
40 HB_BEGIN_DECLS
41 
42 /* Just in case */
43 #undef G_DISABLE_ASSERT
44 
45 #define HB_UNUSED	G_GNUC_UNUSED
46 
47 /* Misc */
48 
49 /* This is too ugly to be public API, but quite handy. */
50 #define HB_TAG_CHAR4(s)   (HB_TAG(((const char *) s)[0], \
51 				  ((const char *) s)[1], \
52 				  ((const char *) s)[2], \
53 				  ((const char *) s)[3]))
54 
55 
56 static inline const char *
srcdir(void)57 srcdir (void)
58 {
59   static const char *s;
60 
61   if (!s) {
62     s = getenv ("srcdir");
63 
64 #ifdef SRCDIR
65     if (!s || !s[0])
66       s = SRCDIR;
67 #endif
68 
69     if (!s || !s[0])
70       s = ".";
71   }
72 
73   return s;
74 }
75 
76 
77 /* Helpers */
78 
79 static inline void
hb_test_init(int * argc,char *** argv)80 hb_test_init (int *argc, char ***argv)
81 {
82   g_test_init (argc, argv, NULL);
83 }
84 
85 static inline int
hb_test_run(void)86 hb_test_run (void)
87 {
88   return g_test_run ();
89 }
90 
91 /* Bugzilla helpers */
92 
93 static inline void
hb_test_bug(const char * uri_base,unsigned int number)94 hb_test_bug (const char *uri_base, unsigned int number)
95 {
96   char *s = g_strdup_printf ("%u", number);
97 
98   g_test_bug_base (uri_base);
99   g_test_bug (s);
100 
101   g_free (s);
102 }
103 
104 static inline void
hb_test_bug_freedesktop(unsigned int number)105 hb_test_bug_freedesktop (unsigned int number)
106 {
107   hb_test_bug ("http://bugs.freedesktop.org/", number);
108 }
109 
110 static inline void
hb_test_bug_gnome(unsigned int number)111 hb_test_bug_gnome (unsigned int number)
112 {
113   hb_test_bug ("http://bugzilla.gnome.org/", number);
114 }
115 
116 static inline void
hb_test_bug_mozilla(unsigned int number)117 hb_test_bug_mozilla (unsigned int number)
118 {
119   hb_test_bug ("http://bugzilla.mozilla.org/", number);
120 }
121 
122 static inline void
hb_test_bug_redhat(unsigned int number)123 hb_test_bug_redhat (unsigned int number)
124 {
125   hb_test_bug ("http://bugzilla.redhat.com/", number);
126 }
127 
128 
129 /* Wrap glib test functions to simplify.  Should have been in glib already. */
130 
131 /* Drops the "test_" prefix and converts '_' to '/'.
132  * Essentially builds test path from function name. */
133 static inline char *
hb_test_normalize_path(const char * path)134 hb_test_normalize_path (const char *path)
135 {
136   char *s, *p;
137 
138   g_assert (0 == strncmp (path, "test_", 5));
139   path += 4;
140 
141   s = g_strdup (path);
142   for (p = s; *p; p++)
143     if (*p == '_')
144       *p = '/';
145 
146   return s;
147 }
148 
149 
150 #if GLIB_CHECK_VERSION(2,25,12)
151 typedef GTestFunc        hb_test_func_t;
152 typedef GTestDataFunc    hb_test_data_func_t;
153 typedef GTestFixtureFunc hb_test_fixture_func_t;
154 #else
155 typedef void (*hb_test_func_t)         (void);
156 typedef void (*hb_test_data_func_t)    (gconstpointer user_data);
157 typedef void (*hb_test_fixture_func_t) (void);
158 #endif
159 
160 #if !GLIB_CHECK_VERSION(2,30,0)
161 #define g_test_fail() g_error("Test failed")
162 #endif
163 #ifndef g_assert_true
164 #define g_assert_true g_assert
165 #endif
166 #ifndef g_assert_cmpmem
167 #define g_assert_cmpmem(m1, l1, m2, l2) g_assert_true (l1 == l2 && memcmp (m1, m2, l1) == 0)
168 #endif
169 
hb_test_assert_blobs_equal(hb_blob_t * expected_blob,hb_blob_t * actual_blob)170 static inline void hb_test_assert_blobs_equal (hb_blob_t *expected_blob, hb_blob_t *actual_blob)
171 {
172   unsigned int expected_length, actual_length;
173   const char *raw_expected = hb_blob_get_data (expected_blob, &expected_length);
174   const char *raw_actual = hb_blob_get_data (actual_blob, &actual_length);
175   g_assert_cmpint(expected_length, ==, actual_length);
176   g_assert_cmpint(0, ==, memcmp(raw_expected, raw_actual, expected_length));
177 }
178 
179 static inline void
hb_test_add_func(const char * test_path,hb_test_func_t test_func)180 hb_test_add_func (const char *test_path,
181 		  hb_test_func_t   test_func)
182 {
183   char *normal_path = hb_test_normalize_path (test_path);
184   g_test_add_func (normal_path, test_func);
185   g_free (normal_path);
186 }
187 #define hb_test_add(Func) hb_test_add_func (#Func, Func)
188 
189 static inline void
hb_test_add_func_flavor(const char * test_path,const char * flavor,hb_test_func_t test_func)190 hb_test_add_func_flavor (const char *test_path,
191 			 const char *flavor,
192 			 hb_test_func_t   test_func)
193 {
194   char *path = g_strdup_printf ("%s/%s", test_path, flavor);
195   hb_test_add_func (path, test_func);
196   g_free (path);
197 }
198 #define hb_test_add_flavor(Flavor, Func) hb_test_add_func (#Func, Flavor, Func)
199 
200 static inline void
hb_test_add_data_func(const char * test_path,gconstpointer test_data,hb_test_data_func_t test_func)201 hb_test_add_data_func (const char          *test_path,
202 		       gconstpointer        test_data,
203 		       hb_test_data_func_t  test_func)
204 {
205   char *normal_path = hb_test_normalize_path (test_path);
206   g_test_add_data_func (normal_path, test_data, test_func);
207   g_free (normal_path);
208 }
209 #define hb_test_add_data(UserData, Func) hb_test_add_data_func (#Func, UserData, Func)
210 
211 static inline void
hb_test_add_data_func_flavor(const char * test_path,const char * flavor,gconstpointer test_data,hb_test_data_func_t test_func)212 hb_test_add_data_func_flavor (const char          *test_path,
213 			      const char          *flavor,
214 			      gconstpointer        test_data,
215 			      hb_test_data_func_t  test_func)
216 {
217   char *path = g_strdup_printf ("%s/%s", test_path, flavor);
218   hb_test_add_data_func (path, test_data, test_func);
219   g_free (path);
220 }
221 #define hb_test_add_data_flavor(UserData, Flavor, Func) hb_test_add_data_func_flavor (#Func, Flavor, UserData, Func)
222 
223 
224 static inline void
hb_test_add_vtable(const char * test_path,gsize data_size,gconstpointer test_data,hb_test_fixture_func_t data_setup,hb_test_fixture_func_t data_test,hb_test_fixture_func_t data_teardown)225 hb_test_add_vtable (const char             *test_path,
226 		    gsize                   data_size,
227 		    gconstpointer           test_data,
228 		    hb_test_fixture_func_t  data_setup,
229 		    hb_test_fixture_func_t  data_test,
230 		    hb_test_fixture_func_t  data_teardown)
231 {
232   char *normal_path = hb_test_normalize_path (test_path);
233   g_test_add_vtable (normal_path, data_size, test_data, data_setup, data_test, data_teardown);
234   g_free (normal_path);
235 }
236 #define hb_test_add_fixture(FixturePrefix, UserData, Func) \
237 G_STMT_START { \
238   typedef G_PASTE (FixturePrefix, _t) Fixture; \
239   void (*add_vtable) (const char*, gsize, gconstpointer, \
240 		      void (*) (Fixture*, gconstpointer), \
241 		      void (*) (Fixture*, gconstpointer), \
242 		      void (*) (Fixture*, gconstpointer)) \
243 	= (void (*) (const gchar *, gsize, gconstpointer, \
244 		     void (*) (Fixture*, gconstpointer), \
245 		     void (*) (Fixture*, gconstpointer), \
246 		     void (*) (Fixture*, gconstpointer))) hb_test_add_vtable; \
247   add_vtable (#Func, sizeof (G_PASTE (FixturePrefix, _t)), UserData, \
248 	      G_PASTE (FixturePrefix, _init), Func, G_PASTE (FixturePrefix, _finish)); \
249 } G_STMT_END
250 
251 static inline void
hb_test_add_vtable_flavor(const char * test_path,const char * flavor,gsize data_size,gconstpointer test_data,hb_test_fixture_func_t data_setup,hb_test_fixture_func_t data_test,hb_test_fixture_func_t data_teardown)252 hb_test_add_vtable_flavor (const char             *test_path,
253 			   const char             *flavor,
254 			   gsize                   data_size,
255 			   gconstpointer           test_data,
256 			   hb_test_fixture_func_t  data_setup,
257 			   hb_test_fixture_func_t  data_test,
258 			   hb_test_fixture_func_t  data_teardown)
259 {
260   char *path = g_strdup_printf ("%s/%s", test_path, flavor);
261   hb_test_add_vtable (path, data_size, test_data, data_setup, data_test, data_teardown);
262   g_free (path);
263 }
264 #define hb_test_add_fixture_flavor(FixturePrefix, UserData, Flavor, Func) \
265 G_STMT_START { \
266   typedef G_PASTE (FixturePrefix, _t) Fixture; \
267   void (*add_vtable) (const char*, const char *, gsize, gconstpointer, \
268 		      void (*) (Fixture*, gconstpointer), \
269 		      void (*) (Fixture*, gconstpointer), \
270 		      void (*) (Fixture*, gconstpointer)) \
271 	= (void (*) (const gchar *, const char *, gsize, gconstpointer, \
272 		     void (*) (Fixture*, gconstpointer), \
273 		     void (*) (Fixture*, gconstpointer), \
274 		     void (*) (Fixture*, gconstpointer))) hb_test_add_vtable_flavor; \
275   add_vtable (#Func, Flavor, sizeof (G_PASTE (FixturePrefix, _t)), UserData, \
276 	      G_PASTE (FixturePrefix, _init), Func, G_PASTE (FixturePrefix, _finish)); \
277 } G_STMT_END
278 
279 
280 static inline hb_face_t *
hb_test_open_font_file(const char * font_path)281 hb_test_open_font_file (const char *font_path)
282 {
283 #if GLIB_CHECK_VERSION(2,37,2)
284   char *path = g_test_build_filename (G_TEST_DIST, font_path, NULL);
285 #else
286   char *path = g_strdup (font_path);
287 #endif
288 
289   hb_blob_t *blob = hb_blob_create_from_file (path);
290   hb_face_t *face;
291   if (hb_blob_get_length (blob) == 0)
292     g_error ("Font %s not found.", path);
293 
294   face = hb_face_create (blob, 0);
295   hb_blob_destroy (blob);
296 
297   g_free (path);
298 
299   return face;
300 }
301 
302 HB_END_DECLS
303 
304 #endif /* HB_TEST_H */
305