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/* $OpenBSD */
/*
* Combined tests for fmt_scaled and scan_scaled.
* Ian Darwin, January 2001. Public domain.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <errno.h>
#include <util.h>
static int fmt_test(void);
static int scan_test(void);
static void print_errno(int e);
static int assert_int(int testnum, int checknum, int expect, int result);
static int assert_errno(int testnum, int checknum, int expect, int result);
static int assert_quad_t(int testnum, int checknum, quad_t expect, quad_t result);
static int assert_str(int testnum, int checknum, char * expect, char * result);
extern char *__progname;
static int verbose = 0;
__dead static void usage(int stat)
{
fprintf(stderr, "usage: %s [-v]\n", __progname);
exit(stat);
}
int
main(int argc, char **argv)
{
extern char *optarg;
extern int optind;
int i, ch;
while ((ch = getopt(argc, argv, "hv")) != -1) {
switch (ch) {
case 'v':
verbose = 1;
break;
case 'h':
usage(0);
case '?':
default:
usage(1);
}
}
argc -= optind;
argv += optind;
if (verbose)
printf("Starting fmt_test\n");
i = fmt_test();
if (verbose)
printf("Starting scan_test\n");
i += scan_test();
if (i) {
printf("*** %d errors in libutil/fmt_scaled tests ***\n", i);
} else {
if (verbose)
printf("Tests done; no unexpected errors\n");
}
return i;
}
/************** tests for fmt_scaled *******************/
static struct { /* the test cases */
quad_t input;
char *expect;
int err;
} ddata[] = {
{ 0, "0B", 0 },
{ 1, "1B", 0 },
{ -1, "-1B", 0 },
{ 100, "100B", 0},
{ -100, "-100B", 0},
{ 999, "999B", 0 },
{ 1000, "1000B", 0 },
{ 1023, "1023B", 0 },
{ -1023, "-1023B", 0 },
{ 1024, "1.0K", 0 },
{ 1025, "1.0K", 0 },
{ 1234, "1.2K", 0 },
{ -1234, "-1.2K", 0 },
{ 1484, "1.4K", 0 }, /* rouding boundary, down */
{ 1485, "1.5K", 0 }, /* rouding boundary, up */
{ -1484, "-1.4K", 0 }, /* rouding boundary, down */
{ -1485, "-1.5K", 0 }, /* rouding boundary, up */
{ 1536, "1.5K", 0 },
{ 1786, "1.7K", 0 },
{ 1800, "1.8K", 0 },
{ 2000, "2.0K", 0 },
{ 123456, "120K", 0 },
{ -102400, "-100K", 0},
{ -103423, "-101K", 0 },
{ 7299072, "7.0M", 0 },
{ 409478144L, "390M", 0 },
{ -409478144L, "-390M", 0 },
{ 999999999L, "953M", 0 },
{ 1499999999L, "1.4G", 0 },
{ 12475423744LL, "11.6G", 0},
{ 1LL<<61, "2.0E", 0 },
{ 1LL<<62, "4.0E", 0 },
{ 1LL<<63, "", ERANGE },
{ 1099512676352LL, "1.0T", 0}
};
# define DDATA_LENGTH (sizeof ddata/sizeof *ddata)
static int
fmt_test(void)
{
unsigned int i, e, errs = 0;
int ret;
char buf[FMT_SCALED_STRSIZE];
for (i = 0; i < DDATA_LENGTH; i++) {
strlcpy(buf, "UNSET", FMT_SCALED_STRSIZE);
ret = fmt_scaled(ddata[i].input, buf);
e = errno;
if (verbose) {
printf("%lld --> %s (%d)", ddata[i].input, buf, ret);
if (ret == -1)
print_errno(e);
printf("\n");
}
if (ret == -1)
errs += assert_int(i, 1, ret, ddata[i].err == 0 ? 0 : -1);
if (ddata[i].err)
errs += assert_errno(i, 2, ddata[i].err, errno);
else
errs += assert_str(i, 3, ddata[i].expect, buf);
}
return errs;
}
/************** tests for scan_scaled *******************/
#define IMPROBABLE (-42)
extern int errno;
struct { /* the test cases */
char *input;
quad_t result;
int err;
} sdata[] = {
{ "0", 0, 0 },
{ "123", 123, 0 },
{ "1k", 1024, 0 }, /* lower case */
{ "100.944", 100, 0 }, /* should --> 100 (truncates fraction) */
{ "10099", 10099LL, 0 },
{ "1M", 1048576LL, 0 },
{ "1.1M", 1153433LL, 0 }, /* fractions */
{ "1.111111111111111111M", 1165084LL, 0 }, /* fractions */
{ "1.55M", 1625292LL, 0 }, /* fractions */
{ "1.9M", 1992294LL, 0 }, /* fractions */
{ "-2K", -2048LL, 0 }, /* negatives */
{ "-2.2K", -2252LL, 0 }, /* neg with fract */
{ "4.5k", 4608, 0 },
{ "4.5555555555555555K", 4664, 0 },
{ "4.5555555555555555555K", 4664, 0 }, /* handle enough digits? */
{ "4.555555555555555555555555555555K", 4664, 0 }, /* ignores extra digits? */
{ "1G", 1073741824LL, 0 },
{ "G", 0, 0 }, /* should == 0G? */
{ "1234567890", 1234567890LL, 0 }, /* should work */
{ "1.5E", 1729382256910270464LL, 0 }, /* big */
{ "32948093840918378473209480483092", 0, ERANGE }, /* too big */
{ "329480938409.8378473209480483092", 0, ERANGE }, /* fraction too big */
{ "1.5Q", 0, ERANGE }, /* invalid multiplier (XXX ERANGE??) */
{ "1ab", 0, ERANGE }, /* ditto */
{ "5.0e3", 0, EINVAL }, /* digits after */
{ "5.0E3", 0, EINVAL }, /* ditto */
{ "1..0", 0, EINVAL }, /* bad format */
{ "", 0, 0 }, /* boundary */
{ "--1", -1, EINVAL },
{ "++42", -1, EINVAL },
{ NULL, 0, EFAULT } /* bad input */
/* { "9223372036854775808", -9223372036854775808LL, 0 }, */ /* XXX */
};
# define SDATA_LENGTH (sizeof sdata/sizeof *sdata)
static void
print_errno(int e)
{
switch(e) {
case EINVAL: printf("EINVAL"); break;
case EFAULT: printf("EFAULT"); break;
case EDOM: printf("EDOM"); break;
case ERANGE: printf("ERANGE"); break;
default: printf("errno %d", errno);
}
}
/** Print one result */
static void
print(char *input, quad_t result, int ret)
{
int e = errno;
printf("\"%10s\" --> %lld (%d)", input, result, ret);
if (ret == -1) {
printf(" -- ");
print_errno(e);
}
printf("\n");
}
static int
scan_test(void)
{
unsigned int i, errs = 0, e;
int ret;
quad_t result;
for (i = 0; i < SDATA_LENGTH; i++) {
result = IMPROBABLE;
/* printf("Calling scan_scaled(%s, ...)\n", sdata[i].input); */
ret = scan_scaled(sdata[i].input, &result);
e = errno; /* protect across printfs &c. */
if (verbose)
print(sdata[i].input, result, ret);
errno = e;
if (ret == -1)
errs += assert_int(i, 1, ret, sdata[i].err == 0 ? 0 : -1);
errno = e;
if (sdata[i].err)
errs += assert_errno(i, 2, sdata[i].err, errno);
else
errs += assert_quad_t(i, 3, sdata[i].result, result);
}
return errs;
}
/************** common testing stuff *******************/
static int
assert_int(int testnum, int check, int expect, int result)
{
if (expect == result)
return 0;
printf("** FAILURE: test %d check %d, expect %d, result %d **\n",
testnum, check, expect, result);
return 1;
}
static int
assert_errno(int testnum, int check, int expect, int result)
{
if (expect == result)
return 0;
printf("** FAILURE: test %d check %d, expect ",
testnum, check);
print_errno(expect);
printf(", got ");
print_errno(result);
printf(" **\n");
return 1;
}
static int
assert_quad_t(int testnum, int check, quad_t expect, quad_t result)
{
if (expect == result)
return 0;
printf("** FAILURE: test %d check %d, expect %lld, result %lld **\n",
testnum, check, expect, result);
return 1;
}
static int
assert_str(int testnum, int check, char * expect, char * result)
{
if (strcmp(expect, result) == 0)
return 0;
printf("** FAILURE: test %d check %d, expect %s, result %s **\n",
testnum, check, expect, result);
return 1;
}
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