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-font.h */
32 static const char test_data[] = "test\0data";
36 test_face_empty (void)
38 g_assert (hb_face_get_empty ());
39 g_assert (hb_face_get_empty () == hb_face_create (hb_blob_get_empty (), 0));
40 g_assert (hb_face_get_empty () == hb_face_create (NULL, 0));
42 g_assert (hb_face_reference_table (hb_face_get_empty (), HB_TAG ('h','e','a','d')) == hb_blob_get_empty ());
44 g_assert_cmpint (hb_face_get_upem (hb_face_get_empty ()), ==, 1000);
48 test_face_create (void)
53 blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
54 face = hb_face_create (blob, 0);
55 hb_blob_destroy (blob);
57 g_assert (hb_face_reference_table (face, HB_TAG ('h','e','a','d')) == hb_blob_get_empty ());
59 g_assert_cmpint (hb_face_get_upem (face), ==, 1000);
61 hb_face_destroy (face);
66 free_up (void *user_data)
68 int *freed = (int *) user_data;
76 get_table (hb_face_t *face, hb_tag_t tag, void *user_data)
78 if (tag == HB_TAG ('a','b','c','d'))
79 return hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
81 return hb_blob_get_empty ();
85 test_face_createfortables (void)
93 face = hb_face_create_for_tables (get_table, &freed, free_up);
96 g_assert (hb_face_reference_table (face, HB_TAG ('h','e','a','d')) == hb_blob_get_empty ());
98 blob = hb_face_reference_table (face, HB_TAG ('a','b','c','d'));
99 g_assert (blob != hb_blob_get_empty ());
101 data = hb_blob_get_data (blob, &len);
102 g_assert_cmpint (len, ==, sizeof (test_data));
103 g_assert (0 == memcmp (data, test_data, sizeof (test_data)));
104 hb_blob_destroy (blob);
106 g_assert_cmpint (hb_face_get_upem (face), ==, 1000);
108 hb_face_destroy (face);
113 _test_font_nil_funcs (hb_font_t *font)
115 hb_codepoint_t glyph;
117 hb_glyph_extents_t extents;
120 g_assert (!hb_font_get_glyph_contour_point (font, 17, 2, &x, &y));
121 g_assert_cmpint (x, ==, 0);
122 g_assert_cmpint (y, ==, 0);
124 x = hb_font_get_glyph_h_advance (font, 17);
125 g_assert_cmpint (x, ==, 0);
127 extents.x_bearing = extents.y_bearing = 13;
128 extents.width = extents.height = 15;
129 hb_font_get_glyph_extents (font, 17, &extents);
130 g_assert_cmpint (extents.x_bearing, ==, 0);
131 g_assert_cmpint (extents.y_bearing, ==, 0);
132 g_assert_cmpint (extents.width, ==, 0);
133 g_assert_cmpint (extents.height, ==, 0);
136 g_assert (!hb_font_get_glyph (font, 17, 2, &glyph));
137 g_assert_cmpint (glyph, ==, 0);
140 x = hb_font_get_glyph_h_kerning (font, 17, 19);
141 g_assert_cmpint (x, ==, 0);
145 _test_fontfuncs_nil (hb_font_funcs_t *ffuncs)
153 blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
154 face = hb_face_create (blob, 0);
155 hb_blob_destroy (blob);
156 g_assert (!hb_face_is_immutable (face));
157 font = hb_font_create (face);
159 g_assert (hb_face_is_immutable (face));
160 hb_face_destroy (face);
163 hb_font_set_funcs (font, ffuncs, &freed, free_up);
164 g_assert_cmpint (freed, ==, 0);
166 _test_font_nil_funcs (font);
168 subfont = hb_font_create_sub_font (font);
171 g_assert_cmpint (freed, ==, 0);
172 hb_font_destroy (font);
173 g_assert_cmpint (freed, ==, 0);
175 _test_font_nil_funcs (subfont);
177 hb_font_destroy (subfont);
178 g_assert_cmpint (freed, ==, 1);
182 test_fontfuncs_empty (void)
184 g_assert (hb_font_funcs_get_empty ());
185 g_assert (hb_font_funcs_is_immutable (hb_font_funcs_get_empty ()));
186 _test_fontfuncs_nil (hb_font_funcs_get_empty ());
190 test_fontfuncs_nil (void)
192 hb_font_funcs_t *ffuncs;
194 ffuncs = hb_font_funcs_create ();
196 g_assert (!hb_font_funcs_is_immutable (ffuncs));
197 _test_fontfuncs_nil (hb_font_funcs_get_empty ());
199 hb_font_funcs_destroy (ffuncs);
203 contour_point_func1 (hb_font_t *font, void *font_data,
204 hb_codepoint_t glyph, unsigned int point_index,
205 hb_position_t *x, hb_position_t *y,
223 contour_point_func2 (hb_font_t *font, void *font_data,
224 hb_codepoint_t glyph, unsigned int point_index,
225 hb_position_t *x, hb_position_t *y,
234 return hb_font_get_glyph_contour_point (hb_font_get_parent (font),
235 glyph, point_index, x, y);
239 glyph_h_advance_func1 (hb_font_t *font, void *font_data,
240 hb_codepoint_t glyph,
250 test_fontfuncs_subclassing (void)
255 hb_font_funcs_t *ffuncs1;
256 hb_font_funcs_t *ffuncs2;
265 blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
266 face = hb_face_create (blob, 0);
267 hb_blob_destroy (blob);
268 font1 = hb_font_create (face);
269 hb_face_destroy (face);
270 hb_font_set_scale (font1, 10, 10);
273 ffuncs1 = hb_font_funcs_create ();
274 hb_font_funcs_set_glyph_contour_point_func (ffuncs1, contour_point_func1, NULL, NULL);
275 hb_font_funcs_set_glyph_h_advance_func (ffuncs1, glyph_h_advance_func1, NULL, NULL);
276 hb_font_set_funcs (font1, ffuncs1, NULL, NULL);
277 hb_font_funcs_destroy (ffuncs1);
280 g_assert (hb_font_get_glyph_contour_point_for_origin (font1, 1, 2, HB_DIRECTION_LTR, &x, &y));
281 g_assert_cmpint (x, ==, 2);
282 g_assert_cmpint (y, ==, 3);
283 g_assert (hb_font_get_glyph_contour_point_for_origin (font1, 2, 5, HB_DIRECTION_LTR, &x, &y));
284 g_assert_cmpint (x, ==, 4);
285 g_assert_cmpint (y, ==, 5);
286 g_assert (!hb_font_get_glyph_contour_point_for_origin (font1, 3, 7, HB_DIRECTION_RTL, &x, &y));
287 g_assert_cmpint (x, ==, 0);
288 g_assert_cmpint (y, ==, 0);
289 x = hb_font_get_glyph_h_advance (font1, 1);
290 g_assert_cmpint (x, ==, 8);
291 x = hb_font_get_glyph_h_advance (font1, 2);
292 g_assert_cmpint (x, ==, 0);
295 font2 = hb_font_create_sub_font (font1);
296 g_assert (hb_font_is_immutable (font1));
297 hb_font_destroy (font1);
299 /* setup font2 to override some funcs */
300 ffuncs2 = hb_font_funcs_create ();
301 hb_font_funcs_set_glyph_contour_point_func (ffuncs2, contour_point_func2, NULL, NULL);
302 hb_font_set_funcs (font2, ffuncs2, NULL, NULL);
303 hb_font_funcs_destroy (ffuncs2);
306 g_assert (hb_font_get_glyph_contour_point_for_origin (font2, 1, 2, HB_DIRECTION_LTR, &x, &y));
307 g_assert_cmpint (x, ==, 6);
308 g_assert_cmpint (y, ==, 7);
309 g_assert (hb_font_get_glyph_contour_point_for_origin (font2, 2, 5, HB_DIRECTION_RTL, &x, &y));
310 g_assert_cmpint (x, ==, 4);
311 g_assert_cmpint (y, ==, 5);
312 g_assert (!hb_font_get_glyph_contour_point_for_origin (font2, 3, 7, HB_DIRECTION_LTR, &x, &y));
313 g_assert_cmpint (x, ==, 0);
314 g_assert_cmpint (y, ==, 0);
315 x = hb_font_get_glyph_h_advance (font2, 1);
316 g_assert_cmpint (x, ==, 8);
317 x = hb_font_get_glyph_h_advance (font2, 2);
318 g_assert_cmpint (x, ==, 0);
321 font3 = hb_font_create_sub_font (font2);
322 g_assert (hb_font_is_immutable (font2));
323 hb_font_destroy (font2);
325 /* setup font3 to override scale */
326 hb_font_set_scale (font3, 20, 30);
329 g_assert (hb_font_get_glyph_contour_point_for_origin (font3, 1, 2, HB_DIRECTION_RTL, &x, &y));
330 g_assert_cmpint (x, ==, 6*2);
331 g_assert_cmpint (y, ==, 7*3);
332 g_assert (hb_font_get_glyph_contour_point_for_origin (font3, 2, 5, HB_DIRECTION_LTR, &x, &y));
333 g_assert_cmpint (x, ==, 4*2);
334 g_assert_cmpint (y, ==, 5*3);
335 g_assert (!hb_font_get_glyph_contour_point_for_origin (font3, 3, 7, HB_DIRECTION_LTR, &x, &y));
336 g_assert_cmpint (x, ==, 0*2);
337 g_assert_cmpint (y, ==, 0*3);
338 x = hb_font_get_glyph_h_advance (font3, 1);
339 g_assert_cmpint (x, ==, 8*2);
340 x = hb_font_get_glyph_h_advance (font3, 2);
341 g_assert_cmpint (x, ==, 0*2);
344 hb_font_destroy (font3);
349 test_font_empty (void)
351 g_assert (hb_font_get_empty ());
352 g_assert (hb_font_get_empty () == hb_font_create (hb_face_get_empty ()));
353 g_assert (hb_font_get_empty () == hb_font_create (NULL));
354 g_assert (hb_font_get_empty () == hb_font_create_sub_font (NULL));
355 g_assert (hb_font_is_immutable (hb_font_get_empty ()));
357 g_assert (hb_font_get_face (hb_font_get_empty ()) == hb_face_get_empty ());
358 g_assert (hb_font_get_parent (hb_font_get_empty ()) == NULL);
362 test_font_properties (void)
368 int x_scale, y_scale;
369 unsigned int x_ppem, y_ppem;
371 blob = hb_blob_create (test_data, sizeof (test_data), HB_MEMORY_MODE_READONLY, NULL, NULL);
372 face = hb_face_create (blob, 0);
373 hb_blob_destroy (blob);
374 font = hb_font_create (face);
375 hb_face_destroy (face);
378 g_assert (hb_font_get_face (font) == face);
379 g_assert (hb_font_get_parent (font) == NULL);
384 hb_font_get_scale (font, NULL, NULL);
385 x_scale = y_scale = 13;
386 hb_font_get_scale (font, &x_scale, NULL);
387 g_assert_cmpint (x_scale, ==, 0);
388 x_scale = y_scale = 13;
389 hb_font_get_scale (font, NULL, &y_scale);
390 g_assert_cmpint (y_scale, ==, 0);
391 x_scale = y_scale = 13;
392 hb_font_get_scale (font, &x_scale, &y_scale);
393 g_assert_cmpint (x_scale, ==, 0);
394 g_assert_cmpint (y_scale, ==, 0);
396 hb_font_set_scale (font, 17, 19);
398 x_scale = y_scale = 13;
399 hb_font_get_scale (font, &x_scale, &y_scale);
400 g_assert_cmpint (x_scale, ==, 17);
401 g_assert_cmpint (y_scale, ==, 19);
406 hb_font_get_ppem (font, NULL, NULL);
407 x_ppem = y_ppem = 13;
408 hb_font_get_ppem (font, &x_ppem, NULL);
409 g_assert_cmpint (x_ppem, ==, 0);
410 x_ppem = y_ppem = 13;
411 hb_font_get_ppem (font, NULL, &y_ppem);
412 g_assert_cmpint (y_ppem, ==, 0);
413 x_ppem = y_ppem = 13;
414 hb_font_get_ppem (font, &x_ppem, &y_ppem);
415 g_assert_cmpint (x_ppem, ==, 0);
416 g_assert_cmpint (y_ppem, ==, 0);
418 hb_font_set_ppem (font, 17, 19);
420 x_ppem = y_ppem = 13;
421 hb_font_get_ppem (font, &x_ppem, &y_ppem);
422 g_assert_cmpint (x_ppem, ==, 17);
423 g_assert_cmpint (y_ppem, ==, 19);
426 /* Check immutable */
428 g_assert (!hb_font_is_immutable (font));
429 hb_font_make_immutable (font);
430 g_assert (hb_font_is_immutable (font));
432 hb_font_set_scale (font, 10, 12);
433 x_scale = y_scale = 13;
434 hb_font_get_scale (font, &x_scale, &y_scale);
435 g_assert_cmpint (x_scale, ==, 17);
436 g_assert_cmpint (y_scale, ==, 19);
438 hb_font_set_ppem (font, 10, 12);
439 x_ppem = y_ppem = 13;
440 hb_font_get_ppem (font, &x_ppem, &y_ppem);
441 g_assert_cmpint (x_ppem, ==, 17);
442 g_assert_cmpint (y_ppem, ==, 19);
446 subfont = hb_font_create_sub_font (font);
447 hb_font_destroy (font);
449 g_assert (hb_font_get_parent (subfont) == font);
450 g_assert (hb_font_get_face (subfont) == face);
453 x_scale = y_scale = 13;
454 hb_font_get_scale (subfont, &x_scale, &y_scale);
455 g_assert_cmpint (x_scale, ==, 17);
456 g_assert_cmpint (y_scale, ==, 19);
457 hb_font_set_scale (subfont, 10, 12);
458 x_scale = y_scale = 13;
459 hb_font_get_scale (subfont, &x_scale, &y_scale);
460 g_assert_cmpint (x_scale, ==, 10);
461 g_assert_cmpint (y_scale, ==, 12);
462 x_scale = y_scale = 13;
463 hb_font_get_scale (font, &x_scale, &y_scale);
464 g_assert_cmpint (x_scale, ==, 17);
465 g_assert_cmpint (y_scale, ==, 19);
468 x_ppem = y_ppem = 13;
469 hb_font_get_ppem (subfont, &x_ppem, &y_ppem);
470 g_assert_cmpint (x_ppem, ==, 17);
471 g_assert_cmpint (y_ppem, ==, 19);
472 hb_font_set_ppem (subfont, 10, 12);
473 x_ppem = y_ppem = 13;
474 hb_font_get_ppem (subfont, &x_ppem, &y_ppem);
475 g_assert_cmpint (x_ppem, ==, 10);
476 g_assert_cmpint (y_ppem, ==, 12);
477 x_ppem = y_ppem = 13;
478 hb_font_get_ppem (font, &x_ppem, &y_ppem);
479 g_assert_cmpint (x_ppem, ==, 17);
480 g_assert_cmpint (y_ppem, ==, 19);
482 hb_font_destroy (subfont);
486 main (int argc, char **argv)
488 hb_test_init (&argc, &argv);
490 hb_test_add (test_face_empty);
491 hb_test_add (test_face_create);
492 hb_test_add (test_face_createfortables);
494 hb_test_add (test_fontfuncs_empty);
495 hb_test_add (test_fontfuncs_nil);
496 hb_test_add (test_fontfuncs_subclassing);
498 hb_test_add (test_font_empty);
499 hb_test_add (test_font_properties);
501 return hb_test_run();