299 lines
8.8 KiB
C
299 lines
8.8 KiB
C
/*
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* Copyright © 2011 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): Behdad Esfahbod
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*/
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#include "hb-test.h"
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/* This file tests types defined in hb-buffer.h */
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static const char utf8[10] = "ab\360\240\200\200defg";
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static const uint16_t utf16[8] = {'a', 'b', 0xD840, 0xDC00, 'd', 'e', 'f', 'g'};
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static const uint32_t utf32[7] = {'a', 'b', 0x20000, 'd', 'e', 'f', 'g'};
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typedef enum {
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BUFFER_EMPTY,
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BUFFER_ONE_BY_ONE,
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BUFFER_UTF32,
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BUFFER_UTF16,
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BUFFER_UTF8,
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BUFFER_NUM_TYPES,
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} buffer_type_t;
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static const char *buffer_names[] = {
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"empty",
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"one-by-one",
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"utf32",
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"utf16",
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"utf8"
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};
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typedef struct
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{
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hb_buffer_t *b;
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} Fixture;
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static void
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fixture_init (Fixture *fixture, gconstpointer user_data)
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{
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unsigned int i;
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fixture->b = hb_buffer_create (0);
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switch (GPOINTER_TO_INT (user_data)) {
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case BUFFER_EMPTY:
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break;
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case BUFFER_ONE_BY_ONE:
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for (i = 1; i < G_N_ELEMENTS (utf32) - 1; i++)
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hb_buffer_add (fixture->b, utf32[i], 1, i);
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break;
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case BUFFER_UTF32:
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hb_buffer_add_utf32 (fixture->b, utf32, G_N_ELEMENTS (utf32), 1, G_N_ELEMENTS (utf32) - 2);
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break;
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case BUFFER_UTF16:
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hb_buffer_add_utf16 (fixture->b, utf16, G_N_ELEMENTS (utf16), 1, G_N_ELEMENTS (utf16) - 2);
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break;
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case BUFFER_UTF8:
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hb_buffer_add_utf8 (fixture->b, utf8, G_N_ELEMENTS (utf8), 1, G_N_ELEMENTS (utf8) - 2);
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break;
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default:
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g_assert_not_reached ();
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}
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}
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static void
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fixture_fini (Fixture *fixture, gconstpointer user_data)
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{
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hb_buffer_destroy (fixture->b);
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}
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static void
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test_buffer_properties (Fixture *fixture, gconstpointer user_data)
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{
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hb_unicode_funcs_t *ufuncs;
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/* test default properties */
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g_assert (hb_buffer_get_unicode_funcs (fixture->b) == hb_unicode_funcs_get_default ());
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g_assert (hb_buffer_get_direction (fixture->b) == HB_DIRECTION_INVALID);
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g_assert (hb_buffer_get_script (fixture->b) == HB_SCRIPT_INVALID);
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g_assert (hb_buffer_get_language (fixture->b) == NULL);
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/* test property changes are retained */
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ufuncs = hb_unicode_funcs_create (NULL);
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hb_buffer_set_unicode_funcs (fixture->b, ufuncs);
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hb_unicode_funcs_destroy (ufuncs);
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g_assert (hb_buffer_get_unicode_funcs (fixture->b) == ufuncs);
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hb_buffer_set_direction (fixture->b, HB_DIRECTION_RTL);
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g_assert (hb_buffer_get_direction (fixture->b) == HB_DIRECTION_RTL);
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hb_buffer_set_script (fixture->b, HB_SCRIPT_ARABIC);
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g_assert (hb_buffer_get_script (fixture->b) == HB_SCRIPT_ARABIC);
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hb_buffer_set_language (fixture->b, hb_language_from_string ("fa"));
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g_assert (hb_buffer_get_language (fixture->b) == hb_language_from_string ("Fa"));
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/* test reset clears properties */
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hb_buffer_reset (fixture->b);
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g_assert (hb_buffer_get_unicode_funcs (fixture->b) == hb_unicode_funcs_get_default ());
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g_assert (hb_buffer_get_direction (fixture->b) == HB_DIRECTION_INVALID);
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g_assert (hb_buffer_get_script (fixture->b) == HB_SCRIPT_INVALID);
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g_assert (hb_buffer_get_language (fixture->b) == NULL);
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}
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static void
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test_buffer_contents (Fixture *fixture, gconstpointer user_data)
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{
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unsigned int i, len, len2;
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buffer_type_t buffer_type = GPOINTER_TO_INT (user_data);
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hb_glyph_info_t *glyphs;
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if (buffer_type == BUFFER_EMPTY) {
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g_assert_cmpint (hb_buffer_get_length (fixture->b), ==, 0);
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return;
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}
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len = hb_buffer_get_length (fixture->b);
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glyphs = hb_buffer_get_glyph_infos (fixture->b, NULL); /* test NULL */
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glyphs = hb_buffer_get_glyph_infos (fixture->b, &len2);
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g_assert_cmpint (len, ==, len2);
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g_assert_cmpint (len, ==, 5);
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for (i = 0; i < len; i++) {
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g_assert_cmphex (glyphs[i].mask, ==, 1);
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g_assert_cmphex (glyphs[i].var1.u32, ==, 0);
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g_assert_cmphex (glyphs[i].var2.u32, ==, 0);
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}
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for (i = 0; i < len; i++) {
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unsigned int cluster;
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cluster = 1+i;
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if (i >= 2) {
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if (buffer_type == BUFFER_UTF16)
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cluster++;
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else if (buffer_type == BUFFER_UTF8)
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cluster += 3;
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}
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g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
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g_assert_cmphex (glyphs[i].cluster, ==, cluster);
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}
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/* reverse, test, and reverse back */
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hb_buffer_reverse (fixture->b);
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for (i = 0; i < len; i++)
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g_assert_cmphex (glyphs[i].codepoint, ==, utf32[len-i]);
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hb_buffer_reverse (fixture->b);
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for (i = 0; i < len; i++)
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g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
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/* reverse_clusters works same as reverse for now since each codepoint is
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* in its own cluster */
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hb_buffer_reverse_clusters (fixture->b);
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for (i = 0; i < len; i++)
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g_assert_cmphex (glyphs[i].codepoint, ==, utf32[len-i]);
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hb_buffer_reverse_clusters (fixture->b);
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for (i = 0; i < len; i++)
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g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
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/* now form a cluster and test again */
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glyphs[2].cluster = glyphs[1].cluster;
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/* reverse, test, and reverse back */
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hb_buffer_reverse (fixture->b);
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for (i = 0; i < len; i++)
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g_assert_cmphex (glyphs[i].codepoint, ==, utf32[len-i]);
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hb_buffer_reverse (fixture->b);
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for (i = 0; i < len; i++)
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g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
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/* reverse_clusters twice still should return the original string,
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* but when applied once, the 1-2 cluster should be retained. */
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hb_buffer_reverse_clusters (fixture->b);
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for (i = 0; i < len; i++) {
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unsigned int j = len-1-i;
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if (j == 1)
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j = 2;
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else if (j == 2)
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j = 1;
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g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+j]);
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}
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hb_buffer_reverse_clusters (fixture->b);
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for (i = 0; i < len; i++)
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g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
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/* test setting length */
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/* enlarge */
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g_assert (hb_buffer_set_length (fixture->b, 10));
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glyphs = hb_buffer_get_glyph_infos (fixture->b, NULL);
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g_assert_cmpint (hb_buffer_get_length (fixture->b), ==, 10);
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for (i = 0; i < 5; i++)
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g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
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for (i = 5; i < 10; i++)
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g_assert_cmphex (glyphs[i].codepoint, ==, 0);
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/* shrink */
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g_assert (hb_buffer_set_length (fixture->b, 3));
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glyphs = hb_buffer_get_glyph_infos (fixture->b, NULL);
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g_assert_cmpint (hb_buffer_get_length (fixture->b), ==, 3);
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for (i = 0; i < 3; i++)
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g_assert_cmphex (glyphs[i].codepoint, ==, utf32[1+i]);
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/* test reset clears content */
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hb_buffer_reset (fixture->b);
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g_assert_cmpint (hb_buffer_get_length (fixture->b), ==, 0);
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}
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static void
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test_buffer_positions (Fixture *fixture, gconstpointer user_data)
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{
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unsigned int i, len, len2;
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hb_glyph_position_t *positions;
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/* Without shaping, positions should all be zero */
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len = hb_buffer_get_length (fixture->b);
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positions = hb_buffer_get_glyph_positions (fixture->b, NULL); /* test NULL */
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positions = hb_buffer_get_glyph_positions (fixture->b, &len2);
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g_assert_cmpint (len, ==, len2);
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for (i = 0; i < len; i++) {
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g_assert_cmpint (0, ==, positions[i].x_advance);
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g_assert_cmpint (0, ==, positions[i].y_advance);
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g_assert_cmpint (0, ==, positions[i].x_offset);
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g_assert_cmpint (0, ==, positions[i].y_offset);
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g_assert_cmpint (0, ==, positions[i].var.i32);
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}
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/* test reset clears content */
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hb_buffer_reset (fixture->b);
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g_assert_cmpint (hb_buffer_get_length (fixture->b), ==, 0);
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}
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int
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main (int argc, char **argv)
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{
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int i;
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g_test_init (&argc, &argv, NULL);
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for (i = 0; i < BUFFER_NUM_TYPES; i++) {
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#define TEST_ADD(path, func) \
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G_STMT_START { \
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char *s = g_strdup_printf ("%s/%s", path, buffer_names[i]); \
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g_test_add (s, Fixture, GINT_TO_POINTER (i), fixture_init, func, fixture_fini); \
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g_free (s); \
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} G_STMT_END
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TEST_ADD ("/buffer/properties", test_buffer_properties);
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TEST_ADD ("/buffer/contents", test_buffer_contents);
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TEST_ADD ("/buffer/positions", test_buffer_positions);
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#undef TEST_ADD
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}
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/* XXX test invalid UTF-8 / UTF-16 text input (also overlong sequences) */
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/* XXX test pre_allocate(), allocation_successful(), and memory management */
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return g_test_run();
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}
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