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// SPDX-FileCopyrightText: 2023, Alejandro Colomar <alx@kernel.org>
// SPDX-License-Identifier: BSD-3-Clause
#include <config.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h> // Required by <cmocka.h>
#include <stddef.h> // Required by <cmocka.h>
#include <setjmp.h> // Required by <cmocka.h>
#include <stdint.h> // Required by <cmocka.h>
#include <cmocka.h>
#include "sizeof.h"
#include "string/sprintf.h"
static void test_SNPRINTF_trunc(void **state);
static void test_SNPRINTF_ok(void **state);
int
main(void)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test(test_SNPRINTF_trunc),
cmocka_unit_test(test_SNPRINTF_ok),
};
return cmocka_run_group_tests(tests, NULL, NULL);
}
static void
test_SNPRINTF_trunc(void **state)
{
char buf[NITEMS("foo")];
// Test that we're not returning SIZE_MAX
assert_true(SNPRINTF(buf, "f%su", "oo") < 0);
assert_true(strcmp(buf, "foo") == 0);
assert_true(SNPRINTF(buf, "barbaz") == -1);
assert_true(strcmp(buf, "bar") == 0);
}
static void
test_SNPRINTF_ok(void **state)
{
char buf[NITEMS("foo")];
assert_true(SNPRINTF(buf, "%s", "foo") == strlen("foo"));
assert_true(strcmp(buf, "foo") == 0);
assert_true(SNPRINTF(buf, "%do", 1) == strlen("1o"));
assert_true(strcmp(buf, "1o") == 0);
assert_true(SNPRINTF(buf, "f") == strlen("f"));
assert_true(strcmp(buf, "f") == 0);
assert_true(SNPRINTF(buf, "") == strlen(""));
assert_true(strcmp(buf, "") == 0);
}
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