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 10 int test__unit_number__scnprint(struct test *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