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/* test-sorted.c
*
* This test ensures that the ExifTagTable[] array is stored in sorted
* order. If that were not so, then it a binary search of the array would
* not give correct results.
*
* Copyright 2009-2022 Dan Fandrich <dan@coneharvesters.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* SPDX-License-Identifier: LGPL-2.0-or-later
*/
#include <libexif/exif-tag.h>
#include <stdio.h>
#include <string.h>
int
main (void)
{
int rc = 0;
unsigned int i, num;
ExifTag last = 0, current;
const char *name;
num = exif_tag_table_count() - 1; /* last entry is a NULL terminator */
for (i=0; i < num; ++i) {
current = exif_tag_table_get_tag(i);
if (current < last) {
printf("Tag 0x%04x in ExifTagTable[] is out of order\n",
current);
rc = 1;
}
name = exif_tag_table_get_name(i);
/* Ensure each tag has a name */
if (name == NULL) {
printf("Tag 0x%04x has a NULL name\n", current);
rc = 1;
}
/* Ensure each tag's name contains only valid characters */
if (strspn(name, "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890/") != strlen(name)) {
printf("Tag 0x%04x has an invalid name: %s\n", current, name);
rc = 1;
}
last = current;
}
return rc;
}
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