Files
LookingGlass/client/tests/font_test.c
2026-07-31 13:25:17 +10:00

68 lines
1.9 KiB
C

/**
* Looking Glass
* Copyright © 2017-2026 The Looking Glass Authors
* https://looking-glass.io
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "font.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
static void testInvalidFontData(void)
{
const unsigned char emptySfnt[12] = {
0x00, 0x01, 0x00, 0x00,
};
assert(!font_isStbTruetypeCompatible(
emptySfnt, sizeof(emptySfnt), 0));
const unsigned char truncatedTableDirectory[12] = {
0x00, 0x01, 0x00, 0x00,
0x00, 0x01,
};
assert(!font_isStbTruetypeCompatible(
truncatedTableDirectory, sizeof(truncatedTableDirectory), 0));
}
static void testValidFontData(void)
{
FILE * file = fopen(FONT_TEST_FILE, "rb");
assert(file);
assert(fseek(file, 0, SEEK_END) == 0);
const long length = ftell(file);
assert(length > 0);
assert(fseek(file, 0, SEEK_SET) == 0);
void * data = malloc((size_t)length);
assert(data);
assert(fread(data, 1, (size_t)length, file) == (size_t)length);
assert(fclose(file) == 0);
assert(font_isStbTruetypeCompatible(data, (size_t)length, 0));
assert(!font_isStbTruetypeCompatible(data, (size_t)length, 1));
free(data);
}
int main(void)
{
testInvalidFontData();
testValidFontData();
return 0;
}