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// SPDX-License-Identifier: LGPL-2.1-or-later
/*
* Copyright 2011 The Chromium Authors, All Rights Reserved.
*
* utilfdt_test - Tests for utilfdt library
*/
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdint.h>
#include <stdarg.h>
#include <libfdt.h>
#include <util.h>
#include "tests.h"
#include "testdata.h"
static void check(const char *fmt, int expect_type, int expect_size)
{
int type;
int size;
if (utilfdt_decode_type(fmt, &type, &size))
FAIL("format '%s': valid format string returned failure", fmt);
if (expect_type != type)
FAIL("format '%s': expected type='%c', got type='%c'", fmt,
expect_type, type);
if (expect_size != size)
FAIL("format '%s': expected size=%d, got size=%d", fmt,
expect_size, size);
}
static void checkfail(const char *fmt)
{
int type;
int size;
if (!utilfdt_decode_type(fmt, &type, &size))
FAIL("format '%s': invalid format string returned success",
fmt);
}
/**
* Add the given modifier to each of the valid sizes, and check that we get
* correct values.
*
* \param modifier Modifer string to use as a prefix
* \param expected_size The size (in bytes) that we expect (ignored for
* strings)
*/
static void check_sizes(char *modifier, int expected_size)
{
char fmt[10], *ptr;
/* set up a string with a hole in it for the format character */
if (strlen(modifier) + 2 >= sizeof(fmt))
FAIL("modifier string '%s' too long", modifier);
strcpy(fmt, modifier);
ptr = fmt + strlen(fmt);
ptr[1] = '\0';
/* now try each format character in turn */
*ptr = 'i';
check(fmt, 'i', expected_size);
*ptr = 'u';
check(fmt, 'u', expected_size);
*ptr = 'x';
check(fmt, 'x', expected_size);
*ptr = 's';
check(fmt, 's', -1);
*ptr = 'r';
check(fmt, 'r', -1);
}
static void test_utilfdt_decode_type(void)
{
char fmt[10];
int ch;
/* check all the valid modifiers and sizes */
check_sizes("", -1);
check_sizes("b", 1);
check_sizes("hh", 1);
check_sizes("h", 2);
check_sizes("l", 4);
/* try every other character */
checkfail("");
for (ch = ' '; ch < 127; ch++) {
if (!strchr("iuxsr", ch)) {
*fmt = ch;
fmt[1] = '\0';
checkfail(fmt);
}
}
/* try a few modifiers at the end */
checkfail("sx");
checkfail("ihh");
checkfail("xb");
/* and one for the doomsday archives */
checkfail("He has all the virtues I dislike and none of the vices "
"I admire.");
}
int main(int argc, char *argv[])
{
test_utilfdt_decode_type();
PASS();
}
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