1// SPDX-License-Identifier: GPL-2.0
2#include <inttypes.h>
3#include <linux/compiler.h>
4#include <linux/types.h>
5#include <string.h>
6#include "tests.h"
7#include "units.h"
8#include "debug.h"
9
10static int test__unit_number__scnprint(struct test_suite *t __maybe_unused, int subtest __maybe_unused)
11{
12 struct {
13 u64 n;
14 const char *str;
15 } test[] = {
16 { 1, "1B" },
17 { 10*1024, "10K" },
18 { 20*1024*1024, "20M" },
19 { 30*1024*1024*1024ULL, "30G" },
20 { 0, "0B" },
21 { 0, NULL },
22 };
23 unsigned i = 0;
24
25 while (test[i].str) {
26 char buf[100];
27
28 unit_number__scnprintf(buf, sizeof(buf), test[i].n);
29
30 pr_debug("n %" PRIu64 ", str '%s', buf '%s'\n",
31 test[i].n, test[i].str, buf);
32
33 if (strcmp(test[i].str, buf))
34 return TEST_FAIL;
35
36 i++;
37 }
38
39 return TEST_OK;
40}
41
42DEFINE_SUITE("unit_number__scnprintf", unit_number__scnprint);
43

source code of linux/tools/perf/tests/unit_number__scnprintf.c