datauri_test.c

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/*
 * Copyright (C) 2026 Michael Brown <mbrown@fensystems.co.uk>.
 *
 * 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 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., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 * You can also choose to distribute this program under the terms of
 * the Unmodified Binary Distribution Licence (as given in the file
 * COPYING.UBDL), provided that you have satisfied its requirements.
 */
 
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
 
/** @file
 *
 * Data URI tests
 *
 */
 
/* Forcibly enable assertions */
#undef NDEBUG
 
#include <string.h>
#include <ipxe/uri.h>
#include <ipxe/datauri.h>
#include <ipxe/test.h>
 
/** Define inline data */
#define DATA(...) { __VA_ARGS__ }
 
/**
 * Report result of data URI test
 *
 * @v uristring         URI string
 * @v expected          Expected parsed data
 * @v expected_len      Length of expected parsed data
 * @v file              Test code file
 * @v line              Test code line
 */
static void datauri_okx ( const char *uristring, const void *expected,
                          size_t expected_len, const char *file,
                          unsigned int line ) {
        uint8_t actual[ strlen ( uristring ) /* more than enough */ ];
        struct uri *uri;
        int len;
 
        /* Parse URI */
        uri = parse_uri ( uristring );
        okx ( uri != NULL, file, line );
        okx ( uri->scheme != NULL, file, line );
        okx ( uri->opaque != NULL, file, line );
        okx ( strcmp ( uri->scheme, "data" ) == 0, file, line );
 
        /* Sanity check */
        okx ( datauri_max_len ( uri ) <= sizeof ( actual ), file, line );
        okx ( datauri_max_len ( uri ) >= expected_len, file, line );
 
        /* Parse data URI */
        len = datauri_parse ( uri, actual );
        okx ( len >= 0, file, line );
        okx ( ( ( size_t ) len ) == expected_len, file, line );
        okx ( memcmp ( actual, expected, expected_len ) == 0, file, line );
 
        /* Drop reference */
        uri_put ( uri );
}
#define datauri_ok( uristring, EXPECTED ) do {                          \
        static const uint8_t expected[] = EXPECTED;                     \
        datauri_okx ( uristring, expected, sizeof ( expected ),         \
                      __FILE__, __LINE__ );                             \
        } while ( 0 )
 
/**
 * Report result of data URI failure test
 *
 * @v uristring         URI string
 * @v file              Test code file
 * @v line              Test code line
 */
static void datauri_fail_okx ( const char *uristring, const char *file,
                               unsigned int line ) {
        uint8_t actual[ strlen ( uristring ) /* more than enough */ ];
        struct uri *uri;
        int len;
 
        /* Parse URI */
        uri = parse_uri ( uristring );
        okx ( uri != NULL, file, line );
        okx ( uri->scheme != NULL, file, line );
        okx ( uri->opaque != NULL, file, line );
        okx ( strcmp ( uri->scheme, "data" ) == 0, file, line );
 
        /* Sanity check */
        okx ( datauri_max_len ( uri ) <= sizeof ( actual ), file, line );
 
        /* Parse data URI */
        len = datauri_parse ( uri, actual );
        okx ( len < 0, file, line );
 
        /* Drop reference */
        uri_put ( uri );
}
#define datauri_fail_ok( uristring ) \
        datauri_fail_okx ( uristring, __FILE__, __LINE__ )
 
/**
 * Perform data URI self-test
 *
 */
static void datauri_test_exec ( void ) {
 
        /* Empty data */
        datauri_ok ( "data:,", DATA() );
        datauri_ok ( "data:;base64,", DATA() );
        datauri_ok ( "data:text/plain,", DATA() );
 
        /* Simple values */
        datauri_ok ( "data:,hello%20world%21",
                     DATA ( 'h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l',
                            'd', '!' ) );
        datauri_ok ( "data:text/plain,simple",
                     DATA ( 's', 'i', 'm', 'p', 'l', 'e' ) );
        datauri_ok ( "data:text/plain;charset=US-ASCII;base64,ZW5jb2RlZA==",
                     DATA ( 'e', 'n', 'c', 'o', 'd', 'e', 'd' ) );
        datauri_ok ( "data:application/octet-string;base64,d2l0aABudWw=",
                     DATA ( 'w', 'i', 't', 'h', 0x00, 'n', 'u', 'l' ) );
 
        /* Invalid values */
        datauri_fail_ok ( "data:" );
        datauri_fail_ok ( "data:;base64,INVALID===" );
}
 
/** Data URI self-test */
struct self_test datauri_test __self_test = {
        .name = "datauri",
        .exec = datauri_test_exec,
};