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[test] Add test for current hmtx logic

This commit is contained in:
Behdad Esfahbod 2022-02-14 15:02:31 -06:00
parent 431c948ed7
commit 379e526aa4
3 changed files with 101 additions and 0 deletions
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1
test/api/Makefile.am
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@ -30,6 +30,7 @@ noinst_PROGRAMS = $(TEST_PROGS)
TEST_PROGS = \
test-aat-layout \
test-baseline \
test-be-glyph-advance.c \
test-be-num-glyphs \
test-blob \
test-buffer \

1
test/api/meson.build
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@ -6,6 +6,7 @@ endif
tests = [
'test-aat-layout.c',
'test-baseline.c',
'test-be-glyph-advance.c',
'test-be-num-glyphs.c',
'test-blob.c',
'test-buffer.c',

99
test/api/test-be-glyph-advance.c Normal file
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@ -0,0 +1,99 @@
/*
* Copyright © 2022 Behdad Esfahbod
*
* This is part of HarfBuzz, a text shaping library.
*
* Permission is hereby granted, without written agreement and without
* license or royalty fees, to use, copy, modify, and distribute this
* software and its documentation for any purpose, provided that the
* above copyright notice and the following two paragraphs appear in
* all copies of this software.
*
* IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
* ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
* IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
* ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
* PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
*/
#include "hb-test.h"
#include <hb.h>
static void
test_maxp_and_hmtx (void)
{
hb_face_t *face;
hb_font_t *font;
const char maxp_data[] = "\x00\x00\x50\x00" // version
"\x00\x05" // numGlyphs
;
const char loca_data[18] = "";
const char hhea_data[36] =
"\x00\x01\x00\x00" /* FixedVersion<>version; * 0x00010000u for version 1.0. */
"\x02\x00" /* FWORD ascender; * Typographic ascent. */
"\x00\x10" /* FWORD descender; * Typographic descent. */
"\x00\x00" /* FWORD lineGap; * Typographic line gap. */
"\x00\x00" /* UFWORD advanceMax; * Maximum advance width/height value in metrics table. */
"\x00\x00" /* FWORD minLeadingBearing; * Minimum left/top sidebearing value in metrics table. */
"\x00\x00" /* FWORD minTrailingBearing; * Minimum right/bottom sidebearing value; */
"\x01\x00" /* FWORD maxExtent; * horizontal: Max(lsb + (xMax - xMin)), */
"\x00\x00" /* HBINT16 caretSlopeRise; * Used to calculate the slope of the,*/
"\x00\x00" /* HBINT16 caretSlopeRun; * 0 for vertical caret, 1 for horizontal. */
"\x00\x00" /* HBINT16 caretOffset; * The amount by which a slanted */
"\x00\x00" /* HBINT16 reserved1; * Set to 0. */
"\x00\x00" /* HBINT16 reserved2; * Set to 0. */
"\x00\x00" /* HBINT16 reserved3; * Set to 0. */
"\x00\x00" /* HBINT16 reserved4; * Set to 0. */
"\x00\x00" /* HBINT16 metricDataFormat; * 0 for current format. */
"\x00\x02" /* HBUINT16 numberOfLongMetrics; * Number of LongMetric entries in metric table. */
;
const char hmtx_data[18] =
"\x00\x01\x00\x02" /* glyph 0 advance lsb */
"\x00\x03\x00\x04" /* glyph 1 advance lsb */
"\x00\x05" /* glyph 2 lsb */
"\x00\x06" /* glyph 3 lsb */
"\x00\x07" /* glyph 4 lsb */
"\x00\x08" /* glyph 5 advance */
"\x00\x09" /* glyph 6 advance */
;
face = hb_face_builder_create ();
HB_FACE_ADD_TABLE (face, "maxp", maxp_data);
HB_FACE_ADD_TABLE (face, "loca", loca_data);
HB_FACE_ADD_TABLE (face, "hhea", hhea_data);
HB_FACE_ADD_TABLE (face, "hmtx", hmtx_data);
font = hb_font_create (face);
hb_face_destroy (face);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 0), ==, 1);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 1), ==, 3);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 2), ==, 3);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 3), ==, 3);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 4), ==, 3);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 5), ==, 3);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 6), ==, 3);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 7), ==, 0);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 8), ==, 0);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font, 9), ==, 0);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font,10), ==, 0);
g_assert_cmpuint (hb_font_get_glyph_h_advance (font,11), ==, 0);
hb_font_destroy (font);
}
int
main (int argc, char **argv)
{
hb_test_init (&argc, &argv);
hb_test_add (test_maxp_and_hmtx);
return hb_test_run();
}