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harfbuzz/test/api/test-buffer.c

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/*
* Copyright © 2011 Google, Inc.
*
* 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.
*
* Google Author(s): Behdad Esfahbod
*/
#include "hb-test.h"
/* Unit tests for hb-buffer.h */
static const char utf8[10] = "ab\360\240\200\200defg";
static const uint16_t utf16[8] = {'a', 'b', 0xD840, 0xDC00, 'd', 'e', 'f', 'g'};
static const uint32_t utf32[7] = {'a', 'b', 0x20000, 'd', 'e', 'f', 'g'};
typedef enum {
BUFFER_EMPTY,
BUFFER_ONE_BY_ONE,
BUFFER_UTF32,
BUFFER_UTF16,
BUFFER_UTF8,
BUFFER_NUM_TYPES,
} buffer_type_t;
static const char *buffer_names[] = {
"empty",
"one-by-one",
"utf32",
"utf16",
"utf8"
};
typedef struct
{
hb_buffer_t *buffer;
} fixture_t;
static void
fixture_init (fixture_t *fixture, gconstpointer user_data)
{
hb_buffer_t *b;
unsigned int i;
b = fixture->buffer = hb_buffer_create ();
switch (GPOINTER_TO_INT (user_data))
{
case BUFFER_EMPTY:
break;
case BUFFER_ONE_BY_ONE:
for (i = 1; i < G_N_ELEMENTS (utf32) - 1; i++)
hb_buffer_add (b, utf32[i], i);
break;
case BUFFER_UTF32:
hb_buffer_add_utf32 (b, utf32, G_N_ELEMENTS (utf32), 1, G_N_ELEMENTS (utf32) - 2);
break;
case BUFFER_UTF16:
hb_buffer_add_utf16 (b, utf16, G_N_ELEMENTS (utf16), 1, G_N_ELEMENTS (utf16) - 2);
break;
case BUFFER_UTF8:
hb_buffer_add_utf8 (b, utf8, G_N_ELEMENTS (utf8), 1, G_N_ELEMENTS (utf8) - 2);
break;
default:
g_assert_not_reached ();
}
}
static void
fixture_finish (fixture_t *fixture, gconstpointer user_data HB_UNUSED)
{
hb_buffer_destroy (fixture->buffer);
}
static void
test_buffer_properties (fixture_t *fixture, gconstpointer user_data HB_UNUSED)
{
hb_buffer_t *b = fixture->buffer;
hb_unicode_funcs_t *ufuncs;
/* test default properties */
g_assert (hb_buffer_get_unicode_funcs (b) == hb_unicode_funcs_get_default ());
g_assert (hb_buffer_get_direction (b) == HB_DIRECTION_INVALID);
g_assert (hb_buffer_get_script (b) == HB_SCRIPT_INVALID);
g_assert (hb_buffer_get_language (b) == NULL);
/* test property changes are retained */
ufuncs = hb_unicode_funcs_create (NULL);
hb_buffer_set_unicode_funcs (b, ufuncs);
hb_unicode_funcs_destroy (ufuncs);
g_assert (hb_buffer_get_unicode_funcs (b) == ufuncs);
hb_buffer_set_direction (b, HB_DIRECTION_RTL);
g_assert (hb_buffer_get_direction (b) == HB_DIRECTION_RTL);
hb_buffer_set_script (b, HB_SCRIPT_ARABIC);
g_assert (hb_buffer_get_script (b) == HB_SCRIPT_ARABIC);
hb_buffer_set_language (b, hb_language_from_string ("fa", -1));
g_assert (hb_buffer_get_language (b) == hb_language_from_string ("Fa", -1));
hb_buffer_set_flags (b, HB_BUFFER_FLAG_BOT);
g_assert (hb_buffer_get_flags (b) == HB_BUFFER_FLAG_BOT);
hb_buffer_set_replacement_codepoint (b, (unsigned int) -1);
g_assert (hb_buffer_get_replacement_codepoint (b) == (unsigned int) -1);
/* test clear_contents clears all these properties: */
hb_buffer_clear_contents (b);
g_assert (hb_buffer_get_unicode_funcs (b) == ufuncs);
g_assert (hb_buffer_get_direction (b) == HB_DIRECTION_INVALID);
g_assert (hb_buffer_get_script (b) == HB_SCRIPT_INVALID);
g_assert (hb_buffer_get_language (b) == NULL);
/* but not these: */
g_assert (hb_buffer_get_flags (b) != HB_BUFFER_FLAGS_DEFAULT);
g_assert (hb_buffer_get_replacement_codepoint (b) != HB_BUFFER_REPLACEMENT_CODEPOINT_DEFAULT);
/* test reset clears all properties */
hb_buffer_set_direction (b, HB_DIRECTION_RTL);
g_assert (hb_buffer_get_direction (b) == HB_DIRECTION_RTL);
hb_buffer_set_script (b, HB_SCRIPT_ARABIC);
g_assert (hb_buffer_get_script (b) == HB_SCRIPT_ARABIC);
hb_buffer_set_language (b, hb_language_from_string ("fa", -1));
g_assert (hb_buffer_get_language (b) == hb_language_from_string ("Fa", -1));
hb_buffer_set_flags (b, HB_BUFFER_FLAG_BOT);
g_assert (hb_buffer_get_flags (b) == HB_BUFFER_FLAG_BOT);
hb_buffer_set_replacement_codepoint (b, (unsigned int) -1);
g_assert (hb_buffer_get_replacement_codepoint (b) == (unsigned int) -1);
hb_buffer_reset (b);
g_assert (hb_buffer_get_unicode_funcs (b) == hb_unicode_funcs_get_default ());
g_assert (hb_buffer_get_direction (b) == HB_DIRECTION_INVALID);
g_assert (hb_buffer_get_script (b) == HB_SCRIPT_INVALID);
g_assert (hb_buffer_get_language (b) == NULL);
g_assert (hb_buffer_get_flags (b) == HB_BUFFER_FLAGS_DEFAULT);
g_assert (hb_buffer_get_replacement_codepoint (b) == HB_BUFFER_REPLACEMENT_CODEPOINT_DEFAULT);
}
static void
test_buffer_contents (fixture_t *fixture, gconstpointer user_data)
{
hb_buffer_t *b = fixture->buffer;
unsigned int i, len, len2;
buffer_type_t buffer_type = GPOINTER_TO_INT (user_data);
hb_glyph_info_t *glyphs;
if (buffer_type == BUFFER_EMPTY) {
g_assert_cmpint (hb_buffer_get_length (b), ==, 0);
return;
}
len = hb_buffer_get_length (b);
hb_buffer_get_glyph_infos (b, NULL); /* test NULL */
glyphs = hb_buffer_get_glyph_infos (b, &len2);
g_assert_cmpint (len, ==, len2);
g_assert_cmpint (len, ==, 5);
for (i = 0; i < len; i++) {
g_assert_cmphex (glyphs[i].mask, ==, 0);
g_assert_cmphex (glyphs[i].var1.u32, ==, 0);
g_assert_cmphex (glyphs[i].var2.u32, ==, 0);
}
for (i = 0; i < len; i++) {
unsigned int cluster;
cluster = 1+i;
if (i >= 2) {
if (buffer_type == BUFFER_UTF16)
cluster++;
else if (buffer_type == BUFFER_UTF8)
cluster += 3;
}
g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
g_assert_cmphex (glyphs[i].cluster, ==, cluster);
}
/* reverse, test, and reverse back */
hb_buffer_reverse (b);
for (i = 0; i < len; i++)
g_assert_cmphex (glyphs[i].codepoint, ==, utf32[len-i]);
hb_buffer_reverse (b);
for (i = 0; i < len; i++)
g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
/* reverse_clusters works same as reverse for now since each codepoint is
* in its own cluster */
hb_buffer_reverse_clusters (b);
for (i = 0; i < len; i++)
g_assert_cmphex (glyphs[i].codepoint, ==, utf32[len-i]);
hb_buffer_reverse_clusters (b);
for (i = 0; i < len; i++)
g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
/* now form a cluster and test again */
glyphs[2].cluster = glyphs[1].cluster;
/* reverse, test, and reverse back */
hb_buffer_reverse (b);
for (i = 0; i < len; i++)
g_assert_cmphex (glyphs[i].codepoint, ==, utf32[len-i]);
hb_buffer_reverse (b);
for (i = 0; i < len; i++)
g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
/* reverse_clusters twice still should return the original string,
* but when applied once, the 1-2 cluster should be retained. */
hb_buffer_reverse_clusters (b);
for (i = 0; i < len; i++) {
unsigned int j = len-1-i;
if (j == 1)
j = 2;
else if (j == 2)
j = 1;
g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+j]);
}
hb_buffer_reverse_clusters (b);
for (i = 0; i < len; i++)
g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
/* test setting length */
/* enlarge */
g_assert (hb_buffer_set_length (b, 10));
glyphs = hb_buffer_get_glyph_infos (b, NULL);
g_assert_cmpint (hb_buffer_get_length (b), ==, 10);
for (i = 0; i < 5; i++)
g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
for (i = 5; i < 10; i++)
g_assert_cmphex (glyphs[i].codepoint, ==, 0);
/* shrink */
g_assert (hb_buffer_set_length (b, 3));
glyphs = hb_buffer_get_glyph_infos (b, NULL);
g_assert_cmpint (hb_buffer_get_length (b), ==, 3);
for (i = 0; i < 3; i++)
g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
g_assert (hb_buffer_allocation_successful (b));
/* test reset clears content */
hb_buffer_reset (b);
g_assert_cmpint (hb_buffer_get_length (b), ==, 0);
}
static void
test_buffer_positions (fixture_t *fixture, gconstpointer user_data HB_UNUSED)
{
hb_buffer_t *b = fixture->buffer;
unsigned int i, len, len2;
hb_glyph_position_t *positions;
/* Without shaping, positions should all be zero */
len = hb_buffer_get_length (b);
hb_buffer_get_glyph_positions (b, NULL); /* test NULL */
positions = hb_buffer_get_glyph_positions (b, &len2);
g_assert_cmpint (len, ==, len2);
for (i = 0; i < len; i++) {
g_assert_cmpint (0, ==, positions[i].x_advance);
g_assert_cmpint (0, ==, positions[i].y_advance);
g_assert_cmpint (0, ==, positions[i].x_offset);
g_assert_cmpint (0, ==, positions[i].y_offset);
g_assert_cmpint (0, ==, positions[i].var.i32);
}
/* test reset clears content */
hb_buffer_reset (b);
g_assert_cmpint (hb_buffer_get_length (b), ==, 0);
}
static void
test_buffer_allocation (fixture_t *fixture, gconstpointer user_data HB_UNUSED)
{
hb_buffer_t *b = fixture->buffer;
g_assert_cmpint (hb_buffer_get_length (b), ==, 0);
g_assert (hb_buffer_pre_allocate (b, 100));
g_assert_cmpint (hb_buffer_get_length (b), ==, 0);
g_assert (hb_buffer_allocation_successful (b));
/* lets try a huge allocation, make sure it fails */
g_assert (!hb_buffer_pre_allocate (b, (unsigned int) -1));
g_assert_cmpint (hb_buffer_get_length (b), ==, 0);
g_assert (!hb_buffer_allocation_successful (b));
/* small one again */
g_assert (hb_buffer_pre_allocate (b, 50));
g_assert_cmpint (hb_buffer_get_length (b), ==, 0);
g_assert (!hb_buffer_allocation_successful (b));
hb_buffer_reset (b);
g_assert (hb_buffer_allocation_successful (b));
/* all allocation and size */
g_assert (!hb_buffer_pre_allocate (b, ((unsigned int) -1) / 20 + 1));
g_assert (!hb_buffer_allocation_successful (b));
hb_buffer_reset (b);
g_assert (hb_buffer_allocation_successful (b));
/* technically, this one can actually pass on 64bit machines, but
* I'm doubtful that any malloc allows 4GB allocations at a time.
* But let's only enable it on a 32-bit machine. */
if (sizeof (long) == 4) {
g_assert (!hb_buffer_pre_allocate (b, ((unsigned int) -1) / 20 - 1));
g_assert (!hb_buffer_allocation_successful (b));
}
hb_buffer_reset (b);
g_assert (hb_buffer_allocation_successful (b));
}
typedef struct {
const char utf8[8];
const uint32_t codepoints[8];
} utf8_conversion_test_t;
/* note: we skip the first and last byte when adding to buffer */
static const utf8_conversion_test_t utf8_conversion_tests[] = {
{"a\303\207", {(hb_codepoint_t) -1}},
{"a\303\207b", {0xC7}},
{"ab\303cd", {'b', (hb_codepoint_t) -1, 'c'}},
{"ab\303\302\301cd", {'b', (hb_codepoint_t) -1, (hb_codepoint_t) -1, (hb_codepoint_t) -1, 'c'}}
};
static void
test_buffer_utf8_conversion (void)
{
hb_buffer_t *b;
unsigned int chars, i, j, len;
b = hb_buffer_create ();
hb_buffer_set_replacement_codepoint (b, (hb_codepoint_t) -1);
for (i = 0; i < G_N_ELEMENTS (utf8_conversion_tests); i++)
{
unsigned int bytes;
hb_glyph_info_t *glyphs;
const utf8_conversion_test_t *test = &utf8_conversion_tests[i];
char *escaped;
escaped = g_strescape (test->utf8, NULL);
g_test_message ("UTF-8 test #%d: %s", i, escaped);
g_free (escaped);
bytes = strlen (test->utf8);
for (chars = 0; test->codepoints[chars]; chars++)
;
hb_buffer_clear_contents (b);
hb_buffer_add_utf8 (b, test->utf8, bytes, 1, bytes - 2);
glyphs = hb_buffer_get_glyph_infos (b, &len);
g_assert_cmpint (len, ==, chars);
for (j = 0; j < chars; j++)
g_assert_cmphex (glyphs[j].codepoint, ==, test->codepoints[j]);
}
hb_buffer_destroy (b);
}
/* Following test table is adapted from glib/glib/tests/utf8-validate.c
* with relicensing permission from Matthias Clasen. */
typedef struct {
const char *utf8;
int max_len;
unsigned int offset;
gboolean valid;
} utf8_validity_test_t;
static const utf8_validity_test_t utf8_validity_tests[] = {
/* some tests to check max_len handling */
/* length 1 */
{ "abcde", -1, 5, TRUE },
{ "abcde", 3, 3, TRUE },
{ "abcde", 5, 5, TRUE },
/* length 2 */
{ "\xc2\xa9\xc2\xa9\xc2\xa9", -1, 6, TRUE },
{ "\xc2\xa9\xc2\xa9\xc2\xa9", 1, 0, FALSE },
{ "\xc2\xa9\xc2\xa9\xc2\xa9", 2, 2, TRUE },
{ "\xc2\xa9\xc2\xa9\xc2\xa9", 3, 2, FALSE },
{ "\xc2\xa9\xc2\xa9\xc2\xa9", 4, 4, TRUE },
{ "\xc2\xa9\xc2\xa9\xc2\xa9", 5, 4, FALSE },
{ "\xc2\xa9\xc2\xa9\xc2\xa9", 6, 6, TRUE },
/* length 3 */
{ "\xe2\x89\xa0\xe2\x89\xa0", -1, 6, TRUE },
{ "\xe2\x89\xa0\xe2\x89\xa0", 1, 0, FALSE },
{ "\xe2\x89\xa0\xe2\x89\xa0", 2, 0, FALSE },
{ "\xe2\x89\xa0\xe2\x89\xa0", 3, 3, TRUE },
{ "\xe2\x89\xa0\xe2\x89\xa0", 4, 3, FALSE },
{ "\xe2\x89\xa0\xe2\x89\xa0", 5, 3, FALSE },
{ "\xe2\x89\xa0\xe2\x89\xa0", 6, 6, TRUE },
/* examples from https://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt */
/* greek 'kosme' */
{ "\xce\xba\xe1\xbd\xb9\xcf\x83\xce\xbc\xce\xb5", -1, 11, TRUE },
/* first sequence of each length */
{ "\x00", -1, 0, TRUE },
{ "\xc2\x80", -1, 2, TRUE },
{ "\xe0\xa0\x80", -1, 3, TRUE },
{ "\xf0\x90\x80\x80", -1, 4, TRUE },
{ "\xf8\x88\x80\x80\x80", -1, 0, FALSE },
{ "\xfc\x84\x80\x80\x80\x80", -1, 0, FALSE },
/* last sequence of each length */
{ "\x7f", -1, 1, TRUE },
{ "\xdf\xbf", -1, 2, TRUE },
{ "\xef\xbf\xbf", -1, 0, TRUE },
{ "\xf4\x8f\xbf\xbf", -1, 0, TRUE },
{ "\xf4\x90\xbf\xbf", -1, 0, FALSE },
{ "\xf7\xbf\xbf\xbf", -1, 0, FALSE },
{ "\xfb\xbf\xbf\xbf\xbf", -1, 0, FALSE },
{ "\xfd\xbf\xbf\xbf\xbf\xbf", -1, 0, FALSE },
/* other boundary conditions */
{ "\xed\x9f\xbf", -1, 3, TRUE },
{ "\xed\xa0\x80", -1, 0, FALSE },
{ "\xed\xbf\xbf", -1, 0, FALSE },
{ "\xee\x80\x80", -1, 3, TRUE },
{ "\xef\xbf\xbd", -1, 3, TRUE },
{ "\xf4\x8f\xbf\xbf", -1, 0, TRUE },
/* malformed sequences */
/* continuation bytes */
{ "\x80", -1, 0, FALSE },
{ "\xbf", -1, 0, FALSE },
{ "\x80\xbf", -1, 0, FALSE },
{ "\x80\xbf\x80", -1, 0, FALSE },
{ "\x80\xbf\x80\xbf", -1, 0, FALSE },
{ "\x80\xbf\x80\xbf\x80", -1, 0, FALSE },
{ "\x80\xbf\x80\xbf\x80\xbf", -1, 0, FALSE },
{ "\x80\xbf\x80\xbf\x80\xbf\x80", -1, 0, FALSE },
/* all possible continuation byte */
{ "\x80", -1, 0, FALSE },
{ "\x81", -1, 0, FALSE },
{ "\x82", -1, 0, FALSE },
{ "\x83", -1, 0, FALSE },
{ "\x84", -1, 0, FALSE },
{ "\x85", -1, 0, FALSE },
{ "\x86", -1, 0, FALSE },
{ "\x87", -1, 0, FALSE },
{ "\x88", -1, 0, FALSE },
{ "\x89", -1, 0, FALSE },
{ "\x8a", -1, 0, FALSE },
{ "\x8b", -1, 0, FALSE },
{ "\x8c", -1, 0, FALSE },
{ "\x8d", -1, 0, FALSE },
{ "\x8e", -1, 0, FALSE },
{ "\x8f", -1, 0, FALSE },
{ "\x90", -1, 0, FALSE },
{ "\x91", -1, 0, FALSE },
{ "\x92", -1, 0, FALSE },
{ "\x93", -1, 0, FALSE },
{ "\x94", -1, 0, FALSE },
{ "\x95", -1, 0, FALSE },
{ "\x96", -1, 0, FALSE },
{ "\x97", -1, 0, FALSE },
{ "\x98", -1, 0, FALSE },
{ "\x99", -1, 0, FALSE },
{ "\x9a", -1, 0, FALSE },
{ "\x9b", -1, 0, FALSE },
{ "\x9c", -1, 0, FALSE },
{ "\x9d", -1, 0, FALSE },
{ "\x9e", -1, 0, FALSE },
{ "\x9f", -1, 0, FALSE },
{ "\xa0", -1, 0, FALSE },
{ "\xa1", -1, 0, FALSE },
{ "\xa2", -1, 0, FALSE },
{ "\xa3", -1, 0, FALSE },
{ "\xa4", -1, 0, FALSE },
{ "\xa5", -1, 0, FALSE },
{ "\xa6", -1, 0, FALSE },
{ "\xa7", -1, 0, FALSE },
{ "\xa8", -1, 0, FALSE },
{ "\xa9", -1, 0, FALSE },
{ "\xaa", -1, 0, FALSE },
{ "\xab", -1, 0, FALSE },
{ "\xac", -1, 0, FALSE },
{ "\xad", -1, 0, FALSE },
{ "\xae", -1, 0, FALSE },
{ "\xaf", -1, 0, FALSE },
{ "\xb0", -1, 0, FALSE },
{ "\xb1", -1, 0, FALSE },
{ "\xb2", -1, 0, FALSE },
{ "\xb3", -1, 0, FALSE },
{ "\xb4", -1, 0, FALSE },
{ "\xb5", -1, 0, FALSE },
{ "\xb6", -1, 0, FALSE },
{ "\xb7", -1, 0, FALSE },
{ "\xb8", -1, 0, FALSE },
{ "\xb9", -1, 0, FALSE },
{ "\xba", -1, 0, FALSE },
{ "\xbb", -1, 0, FALSE },
{ "\xbc", -1, 0, FALSE },
{ "\xbd", -1, 0, FALSE },
{ "\xbe", -1, 0, FALSE },
{ "\xbf", -1, 0, FALSE },
/* lone start characters */
{ "\xc0\x20", -1, 0, FALSE },
{ "\xc1\x20", -1, 0, FALSE },
{ "\xc2\x20", -1, 0, FALSE },
{ "\xc3\x20", -1, 0, FALSE },
{ "\xc4\x20", -1, 0, FALSE },
{ "\xc5\x20", -1, 0, FALSE },
{ "\xc6\x20", -1, 0, FALSE },
{ "\xc7\x20", -1, 0, FALSE },
{ "\xc8\x20", -1, 0, FALSE },
{ "\xc9\x20", -1, 0, FALSE },
{ "\xca\x20", -1, 0, FALSE },
{ "\xcb\x20", -1, 0, FALSE },
{ "\xcc\x20", -1, 0, FALSE },
{ "\xcd\x20", -1, 0, FALSE },
{ "\xce\x20", -1, 0, FALSE },
{ "\xcf\x20", -1, 0, FALSE },
{ "\xd0\x20", -1, 0, FALSE },
{ "\xd1\x20", -1, 0, FALSE },
{ "\xd2\x20", -1, 0, FALSE },
{ "\xd3\x20", -1, 0, FALSE },
{ "\xd4\x20", -1, 0, FALSE },
{ "\xd5\x20", -1, 0, FALSE },
{ "\xd6\x20", -1, 0, FALSE },
{ "\xd7\x20", -1, 0, FALSE },
{ "\xd8\x20", -1, 0, FALSE },
{ "\xd9\x20", -1, 0, FALSE },
{ "\xda\x20", -1, 0, FALSE },
{ "\xdb\x20", -1, 0, FALSE },
{ "\xdc\x20", -1, 0, FALSE },
{ "\xdd\x20", -1, 0, FALSE },
{ "\xde\x20", -1, 0, FALSE },
{ "\xdf\x20", -1, 0, FALSE },
{ "\xe0\x20", -1, 0, FALSE },
{ "\xe1\x20", -1, 0, FALSE },
{ "\xe2\x20", -1, 0, FALSE },
{ "\xe3\x20", -1, 0, FALSE },
{ "\xe4\x20", -1, 0, FALSE },
{ "\xe5\x20", -1, 0, FALSE },
{ "\xe6\x20", -1, 0, FALSE },
{ "\xe7\x20", -1, 0, FALSE },
{ "\xe8\x20", -1, 0, FALSE },
{ "\xe9\x20", -1, 0, FALSE },
{ "\xea\x20", -1, 0, FALSE },
{ "\xeb\x20", -1, 0, FALSE },
{ "\xec\x20", -1, 0, FALSE },
{ "\xed\x20", -1, 0, FALSE },
{ "\xee\x20", -1, 0, FALSE },
{ "\xef\x20", -1, 0, FALSE },
{ "\xf0\x20", -1, 0, FALSE },
{ "\xf1\x20", -1, 0, FALSE },
{ "\xf2\x20", -1, 0, FALSE },
{ "\xf3\x20", -1, 0, FALSE },
{ "\xf4\x20", -1, 0, FALSE },
{ "\xf5\x20", -1, 0, FALSE },
{ "\xf6\x20", -1, 0, FALSE },
{ "\xf7\x20", -1, 0, FALSE },
{ "\xf8\x20", -1, 0, FALSE },
{ "\xf9\x20", -1, 0, FALSE },
{ "\xfa\x20", -1, 0, FALSE },
{ "\xfb\x20", -1, 0, FALSE },
{ "\xfc\x20", -1, 0, FALSE },
{ "\xfd\x20", -1, 0, FALSE },
/* missing continuation bytes */
{ "\x20\xc0", -1, 1, FALSE },
{ "\x20\xe0\x80", -1, 1, FALSE },
{ "\x20\xf0\x80\x80", -1, 1, FALSE },
{ "\x20\xf8\x80\x80\x80", -1, 1, FALSE },
{ "\x20\xfc\x80\x80\x80\x80", -1, 1, FALSE },
{ "\x20\xdf", -1, 1, FALSE },
{ "\x20\xef\xbf", -1, 1, FALSE },
{ "\x20\xf7\xbf\xbf", -1, 1, FALSE },
{ "\x20\xfb\xbf\xbf\xbf", -1, 1, FALSE },
{ "\x20\xfd\xbf\xbf\xbf\xbf", -1, 1, FALSE },
/* impossible bytes */
{ "\x20\xfe\x20", -1, 1, FALSE },
{ "\x20\xff\x20", -1, 1, FALSE },
/* overlong sequences */
{ "\x20\xc0\xaf\x20", -1, 1, FALSE },
{ "\x20\xe0\x80\xaf\x20", -1, 1, FALSE },
{ "\x20\xf0\x80\x80\xaf\x20", -1, 1, FALSE },
{ "\x20\xf8\x80\x80\x80\xaf\x20", -1, 1, FALSE },
{ "\x20\xfc\x80\x80\x80\x80\xaf\x20", -1, 1, FALSE },
{ "\x20\xc1\xbf\x20", -1, 1, FALSE },
{ "\x20\xe0\x9f\xbf\x20", -1, 1, FALSE },
{ "\x20\xf0\x8f\xbf\xbf\x20", -1, 1, FALSE },
{ "\x20\xf8\x87\xbf\xbf\xbf\x20", -1, 1, FALSE },
{ "\x20\xfc\x83\xbf\xbf\xbf\xbf\x20", -1, 1, FALSE },
{ "\x20\xc0\x80\x20", -1, 1, FALSE },
{ "\x20\xe0\x80\x80\x20", -1, 1, FALSE },
{ "\x20\xf0\x80\x80\x80\x20", -1, 1, FALSE },
{ "\x20\xf8\x80\x80\x80\x80\x20", -1, 1, FALSE },
{ "\x20\xfc\x80\x80\x80\x80\x80\x20", -1, 1, FALSE },
/* illegal code positions */
{ "\x20\xed\xa0\x80\x20", -1, 1, FALSE },
{ "\x20\xed\xad\xbf\x20", -1, 1, FALSE },
{ "\x20\xed\xae\x80\x20", -1, 1, FALSE },
{ "\x20\xed\xaf\xbf\x20", -1, 1, FALSE },
{ "\x20\xed\xb0\x80\x20", -1, 1, FALSE },
{ "\x20\xed\xbe\x80\x20", -1, 1, FALSE },
{ "\x20\xed\xbf\xbf\x20", -1, 1, FALSE },
{ "\x20\xed\xa0\x80\xed\xb0\x80\x20", -1, 1, FALSE },
{ "\x20\xed\xa0\x80\xed\xbf\xbf\x20", -1, 1, FALSE },
{ "\x20\xed\xad\xbf\xed\xb0\x80\x20", -1, 1, FALSE },
{ "\x20\xed\xad\xbf\xed\xbf\xbf\x20", -1, 1, FALSE },
{ "\x20\xed\xae\x80\xed\xb0\x80\x20", -1, 1, FALSE },
{ "\x20\xed\xae\x80\xed\xbf\xbf\x20", -1, 1, FALSE },
{ "\x20\xed\xaf\xbf\xed\xb0\x80\x20", -1, 1, FALSE },
{ "\x20\xed\xaf\xbf\xed\xbf\xbf\x20", -1, 1, FALSE },
#if 0 /* We don't consider U+FFFE / U+FFFF and similar invalid. */
{ "\x20\xef\xbf\xbe\x20", -1, 1, FALSE },
{ "\x20\xef\xbf\xbf\x20", -1, 1, FALSE },
#endif
{ "", -1, 0, TRUE }
};
static void
test_buffer_utf8_validity (void)
{
hb_buffer_t *b;
unsigned int i;
b = hb_buffer_create ();
hb_buffer_set_replacement_codepoint (b, (hb_codepoint_t) -1);
for (i = 0; i < G_N_ELEMENTS (utf8_validity_tests); i++)
{
const utf8_validity_test_t *test = &utf8_validity_tests[i];
unsigned int text_bytes, segment_bytes, j, len;
hb_glyph_info_t *glyphs;
char *escaped;
escaped = g_strescape (test->utf8, NULL);
g_test_message ("UTF-8 test #%d: %s", i, escaped);
g_free (escaped);
text_bytes = strlen (test->utf8);
if (test->max_len == -1)
segment_bytes = text_bytes;
else
segment_bytes = test->max_len;
hb_buffer_clear_contents (b);
hb_buffer_add_utf8 (b, test->utf8, text_bytes, 0, segment_bytes);
glyphs = hb_buffer_get_glyph_infos (b, &len);
for (j = 0; j < len; j++)
if (glyphs[j].codepoint == (hb_codepoint_t) -1)
break;
g_assert (test->valid ? j == len : j < len);
if (!test->valid)
g_assert (glyphs[j].cluster == test->offset);
}
hb_buffer_destroy (b);
}
typedef struct {
const uint16_t utf16[8];
const uint32_t codepoints[8];
} utf16_conversion_test_t;
/* note: we skip the first and last item from utf16 when adding to buffer */
static const utf16_conversion_test_t utf16_conversion_tests[] = {
{{0x41, 0x004D, 0x0430, 0x4E8C, 0xD800, 0xDF02, 0x61} , {0x004D, 0x0430, 0x4E8C, 0x10302}},
{{0x41, 0xD800, 0xDF02, 0x61}, {0x10302}},
{{0x41, 0xD800, 0xDF02}, {(hb_codepoint_t) -1}},
{{0x41, 0x61, 0xD800, 0xDF02}, {0x61, (hb_codepoint_t) -1}},
{{0x41, 0xD800, 0x61, 0xDF02}, {(hb_codepoint_t) -1, 0x61}},
{{0x41, 0xDF00, 0x61}, {(hb_codepoint_t) -1}},
{{0x41, 0x61}, {0}}
};
static void
test_buffer_utf16_conversion (void)
{
hb_buffer_t *b;
unsigned int i;
b = hb_buffer_create ();
hb_buffer_set_replacement_codepoint (b, (hb_codepoint_t) -1);
for (i = 0; i < G_N_ELEMENTS (utf16_conversion_tests); i++)
{
const utf16_conversion_test_t *test = &utf16_conversion_tests[i];
unsigned int u_len, chars, j, len;
hb_glyph_info_t *glyphs;
g_test_message ("UTF-16 test #%d", i);
for (u_len = 0; test->utf16[u_len]; u_len++)
;
for (chars = 0; test->codepoints[chars]; chars++)
;
hb_buffer_clear_contents (b);
hb_buffer_add_utf16 (b, test->utf16, u_len, 1, u_len - 2);
glyphs = hb_buffer_get_glyph_infos (b, &len);
g_assert_cmpint (len, ==, chars);
for (j = 0; j < chars; j++)
g_assert_cmphex (glyphs[j].codepoint, ==, test->codepoints[j]);
}
hb_buffer_destroy (b);
}
typedef struct {
const uint32_t utf32[8];
const uint32_t codepoints[8];
} utf32_conversion_test_t;
/* note: we skip the first and last item from utf32 when adding to buffer */
static const utf32_conversion_test_t utf32_conversion_tests[] = {
{{0x41, 0x004D, 0x0430, 0x4E8C, 0xD800, 0xDF02, 0x61} , {0x004D, 0x0430, 0x4E8C, (hb_codepoint_t) -3, (hb_codepoint_t) -3}},
{{0x41, 0x004D, 0x0430, 0x4E8C, 0x10302, 0x61} , {0x004D, 0x0430, 0x4E8C, 0x10302}},
{{0x41, 0xD800, 0xDF02, 0x61}, {(hb_codepoint_t) -3, (hb_codepoint_t) -3}},
{{0x41, 0xD800, 0xDF02}, {(hb_codepoint_t) -3}},
{{0x41, 0x61, 0xD800, 0xDF02}, {0x61, (hb_codepoint_t) -3}},
{{0x41, 0xD800, 0x61, 0xDF02}, {(hb_codepoint_t) -3, 0x61}},
{{0x41, 0xDF00, 0x61}, {(hb_codepoint_t) -3}},
{{0x41, 0x10FFFF, 0x61}, {0x10FFFF}},
{{0x41, 0x110000, 0x61}, {(hb_codepoint_t) -3}},
{{0x41, 0x61}, {0}}
};
static void
test_buffer_utf32_conversion (void)
{
hb_buffer_t *b;
unsigned int i;
b = hb_buffer_create ();
hb_buffer_set_replacement_codepoint (b, (hb_codepoint_t) -3);
for (i = 0; i < G_N_ELEMENTS (utf32_conversion_tests); i++)
{
const utf32_conversion_test_t *test = &utf32_conversion_tests[i];
unsigned int u_len, chars, j, len;
hb_glyph_info_t *glyphs;
g_test_message ("UTF-32 test #%d", i);
for (u_len = 0; test->utf32[u_len]; u_len++)
;
for (chars = 0; test->codepoints[chars]; chars++)
;
hb_buffer_clear_contents (b);
hb_buffer_add_utf32 (b, test->utf32, u_len, 1, u_len - 2);
glyphs = hb_buffer_get_glyph_infos (b, &len);
g_assert_cmpint (len, ==, chars);
for (j = 0; j < chars; j++)
g_assert_cmphex (glyphs[j].codepoint, ==, test->codepoints[j]);
}
hb_buffer_destroy (b);
}
static void
test_empty (hb_buffer_t *b)
{
g_assert_cmpint (hb_buffer_get_length (b), ==, 0);
g_assert (!hb_buffer_get_glyph_infos (b, NULL));
g_assert (!hb_buffer_get_glyph_positions (b, NULL));
}
static void
test_buffer_empty (void)
{
hb_buffer_t *b = hb_buffer_get_empty ();
g_assert (hb_buffer_get_empty ());
g_assert (hb_buffer_get_empty () == b);
g_assert (!hb_buffer_allocation_successful (b));
test_empty (b);
hb_buffer_add_utf32 (b, utf32, G_N_ELEMENTS (utf32), 1, G_N_ELEMENTS (utf32) - 2);
test_empty (b);
hb_buffer_reverse (b);
hb_buffer_reverse_clusters (b);
g_assert (!hb_buffer_set_length (b, 10));
test_empty (b);
g_assert (hb_buffer_set_length (b, 0));
test_empty (b);
g_assert (!hb_buffer_allocation_successful (b));
hb_buffer_reset (b);
test_empty (b);
g_assert (!hb_buffer_allocation_successful (b));
}
typedef struct {
const char *contents;
hb_buffer_serialize_format_t format;
unsigned int num_items;
hb_bool_t success;
} serialization_test_t;
static const serialization_test_t serialization_tests[] = {
{ "<U+0640=0|U+0635=1>", HB_BUFFER_SERIALIZE_FORMAT_TEXT, 2, 1 },
{ "[{\"u\":1600,\"cl\":0},{\"u\":1589,\"cl\":1}]", HB_BUFFER_SERIALIZE_FORMAT_JSON, 2, 1 },
/* Mixed glyphs/Unicodes -> parse fail */
{ "[{\"u\":1600,\"cl\":0},{\"g\":1589,\"cl\":1}]", HB_BUFFER_SERIALIZE_FORMAT_JSON, 0, 0 },
{ "<U+0640=0|uni0635=1>", HB_BUFFER_SERIALIZE_FORMAT_TEXT, 0, 0 },
};
static void
test_buffer_serialize_deserialize (void)
{
hb_buffer_t *b;
unsigned int i;
for (i = 0; i < G_N_ELEMENTS (serialization_tests); i++)
{
unsigned int consumed;
char round_trip[1024];
hb_bool_t retval;
b = hb_buffer_create ();
hb_buffer_set_replacement_codepoint (b, (hb_codepoint_t) -1);
const serialization_test_t *test = &serialization_tests[i];
g_test_message ("serialize test #%d", i);
retval = hb_buffer_deserialize_unicode (b, test->contents, -1, NULL, test->format);
// Expected parse failure, got one, don't round-trip
if (test->success != 0)
{
unsigned int num_glyphs = hb_buffer_get_length (b);
g_assert_cmpint (num_glyphs, ==, test->num_items);
hb_buffer_serialize_unicode (b, 0, num_glyphs, round_trip,
sizeof(round_trip), &consumed, test->format,
HB_BUFFER_SERIALIZE_FLAG_DEFAULT);
g_assert_cmpstr (round_trip, ==, test->contents);
}
hb_buffer_destroy (b);
}
char test[1024];
unsigned int consumed;
hb_buffer_t *indeterminate = hb_buffer_get_empty ();
hb_buffer_serialize (indeterminate, 0, (unsigned) -1,
test, sizeof(test), &consumed, NULL,
HB_BUFFER_SERIALIZE_FORMAT_JSON,
HB_BUFFER_SERIALIZE_FLAG_DEFAULT);
g_assert_cmpstr ( test, ==, "[]");
hb_buffer_serialize (indeterminate, 0, (unsigned) - 1,
test, sizeof(test), &consumed, NULL,
HB_BUFFER_SERIALIZE_FORMAT_TEXT,
HB_BUFFER_SERIALIZE_FLAG_DEFAULT);
g_assert_cmpstr ( test, ==, "!!");
}
int
main (int argc, char **argv)
{
unsigned int i;
hb_test_init (&argc, &argv);
for (i = 0; i < BUFFER_NUM_TYPES; i++)
{
const void *buffer_type = GINT_TO_POINTER (i);
const char *buffer_name = buffer_names[i];
hb_test_add_fixture_flavor (fixture, buffer_type, buffer_name, test_buffer_properties);
hb_test_add_fixture_flavor (fixture, buffer_type, buffer_name, test_buffer_contents);
hb_test_add_fixture_flavor (fixture, buffer_type, buffer_name, test_buffer_positions);
}
hb_test_add_fixture (fixture, GINT_TO_POINTER (BUFFER_EMPTY), test_buffer_allocation);
hb_test_add (test_buffer_utf8_conversion);
hb_test_add (test_buffer_utf8_validity);
hb_test_add (test_buffer_utf16_conversion);
hb_test_add (test_buffer_utf32_conversion);
hb_test_add (test_buffer_empty);
hb_test_add (test_buffer_serialize_deserialize);
return hb_test_run();
}
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