HarfBuzz text shaping engine
http://harfbuzz.github.io/
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158 lines
5.6 KiB
158 lines
5.6 KiB
/* |
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* Copyright © 2020 Google, Inc. |
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* |
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* This is part of HarfBuzz, a text shaping library. |
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* |
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* Permission is hereby granted, without written agreement and without |
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* license or royalty fees, to use, copy, modify, and distribute this |
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* software and its documentation for any purpose, provided that the |
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* above copyright notice and the following two paragraphs appear in |
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* all copies of this software. |
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* |
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR |
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES |
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* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN |
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* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH |
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* DAMAGE. |
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* |
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* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, |
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS |
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* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO |
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* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. |
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* |
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* Google Author(s): Calder Kitagawa |
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*/ |
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#include "hb-test.h" |
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#include "hb-subset-test.h" |
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/* Unit tests for CBDT/CBLC subsetting */ |
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static void |
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test_subset_cbdt_noop (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.ttf"); |
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hb_set_t *codepoints = hb_set_create (); |
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hb_face_t *face_subset; |
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hb_set_add (codepoints, 0x38); |
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hb_set_add (codepoints, 0x39); |
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hb_set_add (codepoints, 0xAE); |
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hb_set_add (codepoints, 0x2049); |
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hb_set_add (codepoints, 0x20E3); |
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face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints)); |
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hb_set_destroy (codepoints); |
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hb_subset_test_check (face, face_subset, HB_TAG ('C','B','L','C')); |
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hb_subset_test_check (face, face_subset, HB_TAG ('C','B','D','T')); |
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hb_face_destroy (face_subset); |
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hb_face_destroy (face); |
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} |
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static void |
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test_subset_cbdt_keep_one (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.ttf"); |
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hb_face_t *face_expected = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.default.39.ttf"); |
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hb_set_t *codepoints = hb_set_create (); |
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hb_face_t *face_subset; |
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hb_set_add (codepoints, 0x39); |
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face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints)); |
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hb_set_destroy (codepoints); |
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','L','C')); |
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','D','T')); |
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hb_face_destroy (face_subset); |
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hb_face_destroy (face_expected); |
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hb_face_destroy (face); |
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} |
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static void |
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test_subset_cbdt_keep_one_last_subtable (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.ttf"); |
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hb_face_t *face_expected = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.default.2049.ttf"); |
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hb_set_t *codepoints = hb_set_create (); |
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hb_face_t *face_subset; |
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hb_set_add (codepoints, 0x2049); |
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face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints)); |
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hb_set_destroy (codepoints); |
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','L','C')); |
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','D','T')); |
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hb_face_destroy (face_subset); |
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hb_face_destroy (face_expected); |
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hb_face_destroy (face); |
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} |
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static void |
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test_subset_cbdt_keep_multiple_subtables (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.multiple_size_tables.ttf"); |
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hb_face_t *face_expected = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.multiple_size_tables.default.38,AE,2049.ttf"); |
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hb_set_t *codepoints = hb_set_create (); |
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hb_face_t *face_subset; |
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hb_set_add (codepoints, 0x38); |
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hb_set_add (codepoints, 0xAE); |
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hb_set_add (codepoints, 0x2049); |
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face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints)); |
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hb_set_destroy (codepoints); |
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','L','C')); |
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','D','T')); |
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hb_face_destroy (face_subset); |
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hb_face_destroy (face_expected); |
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hb_face_destroy (face); |
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} |
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static void |
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test_subset_cbdt_index_format_3 (void) |
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{ |
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hb_face_t *face = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.index_format3.ttf"); |
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hb_face_t *face_expected = hb_test_open_font_file ("fonts/NotoColorEmoji.subset.index_format3.default.38,AE,2049.ttf"); |
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hb_set_t *codepoints = hb_set_create (); |
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hb_face_t *face_subset; |
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hb_set_add (codepoints, 0x38); |
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hb_set_add (codepoints, 0xAE); |
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hb_set_add (codepoints, 0x2049); |
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face_subset = hb_subset_test_create_subset (face, hb_subset_test_create_input (codepoints)); |
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hb_set_destroy (codepoints); |
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','L','C')); |
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hb_subset_test_check (face_expected, face_subset, HB_TAG ('C','B','D','T')); |
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hb_face_destroy (face_subset); |
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hb_face_destroy (face_expected); |
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hb_face_destroy (face); |
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} |
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// TODO: add support/tests for index formats 2,4,5 (image formats are treated as |
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// opaque blobs when subsetting so don't need to be tested separately). |
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// TODO: add a test that keeps no codepoints. |
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int |
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main (int argc, char **argv) |
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{ |
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hb_test_init (&argc, &argv); |
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hb_test_add (test_subset_cbdt_noop); |
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hb_test_add (test_subset_cbdt_keep_one); |
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hb_test_add (test_subset_cbdt_keep_one_last_subtable); |
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// The following use manually crafted expectation files as they are not |
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// binary compatible with FontTools. |
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hb_test_add (test_subset_cbdt_keep_multiple_subtables); |
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// Can use FontTools after https://github.com/fonttools/fonttools/issues/1817 |
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// is resolved. |
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hb_test_add (test_subset_cbdt_index_format_3); |
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return hb_test_run(); |
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}
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