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// SPDX-License-Identifier: GPL-2.0-or-later
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include "../util/types.h"
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(a[0]))
/* create a uint128_t from four uint32_ts. w0 is the most significant value,
* w2 the least */
#define U128(w0, w1, w2, w3) { .words = { w0, w1, w2, w3 } }
static int test_rc;
static void check_str(nvme_uint128_t val, __u32 bytes_per_unit, const char *exp,
const char *res)
{
if (!strcmp(res, exp))
return;
printf("ERROR: printing {%08x.%08x.%08x.%08x} (bytes per unit %u), got '%s', expected '%s'\n",
val.words[3], val.words[2], val.words[1], val.words[0],
bytes_per_unit, res, exp);
test_rc = 1;
}
struct tostr_test {
nvme_uint128_t val;
__u32 bytes_per_unit;
const char *exp;
};
static struct tostr_test tostr_tests[] = {
{ U128(0, 0, 0, 0), 1, "0.00 B" },
{ U128(0, 0, 0, 1), 1, "1.00 B" },
{ U128(0, 0, 0, 10), 1, "10.00 B" },
{ U128(4, 3, 2, 1), 1, "316.91 RB" },
{ U128(0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff), 1,
"340282366.92 QB" },
{ U128(0, 0, 0, 0xae0dc2), 1000 * 512, "5.84 TB" },
{ U128(0, 0, 0, 0xf9c546), 1000 * 512, "8.38 TB" },
{ U128(0, 0, 0, 0x4c2aa594), 1000 * 512, "654.27 TB" },
{ U128(0, 0, 0, 0x5b013de8), 1000 * 512, "781.73 TB" },
};
void tostr_test(struct tostr_test *test)
{
char *str;
str = uint128_t_to_si_string(test->val, test->bytes_per_unit);
check_str(test->val, test->bytes_per_unit, test->exp, str);
}
int main(void)
{
unsigned int i;
test_rc = 0;
for (i = 0; i < ARRAY_SIZE(tostr_tests); i++)
tostr_test(&tostr_tests[i]);
return test_rc ? EXIT_FAILURE : EXIT_SUCCESS;
}
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