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