minix/tests/lib/libc/gen/t_humanize_number.c
Lionel Sambuc 11be35a165 Importing NetBSD "Kyua" test framework
To do so, a few dependencies have been imported:

 * external/bsd/lutok
 * external/mit/lua
 * external/public-domain/sqlite
 * external/public-domain/xz

The Kyua framework is the new generation of ATF (Automated Test
Framework), it is composed of:

 * external/bsd/atf
 * external/bsd/kyua-atf-compat
 * external/bsd/kyua-cli
 * external/bsd/kyua-tester
 * tests

Kyua/ATF being written in C++, it depends on libstdc++ which is
provided by GCC. As this is not part of the sources, Kyua is only
compiled when the native GCC utils are installed.

To install Kyua do the following:

 * In a cross-build enviromnent, add the following to the build.sh
   commandline: -V MKBINUTILS=yes -V MKGCCCMDS=yes

WARNING:
  At this point the import is still experimental, and not supported
  on native builds (a.k.a make build).

Change-Id: I26aee23c5bbd2d64adcb7c1beb98fe0d479d7ada
2013-07-23 20:43:41 +02:00

312 lines
7.6 KiB
C

/* $NetBSD: t_humanize_number.c,v 1.8 2012/03/18 07:14:08 jruoho Exp $ */
/*-
* Copyright (c) 2010, 2011 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <atf-c.h>
#include <err.h>
#include <inttypes.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <util.h>
const struct hnopts {
size_t ho_len;
int64_t ho_num;
const char *ho_suffix;
int ho_scale;
int ho_flags;
int ho_retval; /* expected return value */
const char *ho_retstr; /* expected string in buffer */
} hnopts[] = {
/*
* Rev. 1.6 produces "10.0".
*/
{ 5, 10737418236ULL * 1024, "",
HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 3, "10T" },
{ 5, 10450000, "",
HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 3, "10M" },
{ 5, 10500000, "", /* just for reference */
HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 3, "10M" },
/*
* Trailing space. Rev. 1.7 produces "1 ".
*/
{ 5, 1, "", 0, HN_NOSPACE, 1, "1" },
{ 5, 1, "", 0, 0, 2, "1 " }, /* just for reference */
{ 5, 1, "", 0, HN_B, 3, "1 B" }, /* and more ... */
{ 5, 1, "", 0, HN_DECIMAL, 2, "1 " },
{ 5, 1, "", 0, HN_NOSPACE | HN_B, 2, "1B" },
{ 5, 1, "", 0, HN_B | HN_DECIMAL, 3, "1 B" },
{ 5, 1, "", 0, HN_NOSPACE | HN_B | HN_DECIMAL, 2, "1B" },
/*
* Space and HN_B. Rev. 1.7 produces "1B".
*/
{ 5, 1, "", HN_AUTOSCALE, HN_B, 3, "1 B" },
{ 5, 1000, "", /* just for reference */
HN_AUTOSCALE, HN_B, 3, "1 K" },
/*
* Truncated output. Rev. 1.7 produces "1.0 K".
*/
{ 6, 1000, "A", HN_AUTOSCALE, HN_DECIMAL, -1, "" },
/*
* Failure case reported by Greg Troxel <gdt@NetBSD.org>.
* Rev. 1.11 incorrectly returns 5 with filling the buffer
* with "1000".
*/
{ 5, 1048258238, "",
HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 4, "1.0G" },
/* Similar case it prints 1000 where it shouldn't */
{ 5, 1023488, "",
HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 4, "1.0M" },
{ 5, 1023999, "",
HN_AUTOSCALE, HN_B | HN_NOSPACE | HN_DECIMAL, 4, "1.0M" },
};
struct hnflags {
int hf_flags;
const char *hf_name;
};
const struct hnflags scale_flags[] = {
{ HN_GETSCALE, "HN_GETSCALE" },
{ HN_AUTOSCALE, "HN_AUTOSCALE" },
};
const struct hnflags normal_flags[] = {
{ HN_DECIMAL, "HN_DECIMAL" },
{ HN_NOSPACE, "HN_NOSPACE" },
{ HN_B, "HN_B" },
{ HN_DIVISOR_1000, "HN_DIVISOR_1000" },
};
const char *formatflags(char *, size_t, const struct hnflags *, size_t, int);
void newline(void);
void w_printf(const char *, ...) __printflike(1, 2);
int main(int, char *[]);
const char *
formatflags(char *buf, size_t buflen, const struct hnflags *hfs,
size_t hfslen, int flags)
{
const struct hnflags *hf;
char *p = buf;
ssize_t len = buflen;
unsigned int i, found;
int n;
if (flags == 0) {
snprintf(buf, buflen, "0");
return (buf);
}
for (i = found = 0; i < hfslen && flags & ~found; i++) {
hf = &hfs[i];
if (flags & hf->hf_flags) {
found |= hf->hf_flags;
n = snprintf(p, len, "|%s", hf->hf_name);
if (n >= len) {
p = buf;
len = buflen;
/* Print `flags' as number */
goto bad;
}
p += n;
len -= n;
}
}
flags &= ~found;
if (flags)
bad:
snprintf(p, len, "|0x%x", flags);
return (*buf == '|' ? buf + 1 : buf);
}
static int col, bol = 1;
void
newline(void)
{
fprintf(stderr, "\n");
col = 0;
bol = 1;
}
void
w_printf(const char *fmt, ...)
{
char buf[80];
va_list ap;
int n;
va_start(ap, fmt);
if (col >= 0) {
n = vsnprintf(buf, sizeof(buf), fmt, ap);
if (n >= (int)sizeof(buf)) {
col = -1;
goto overflow;
} else if (n == 0)
goto out;
if (!bol) {
if (col + n > 75)
fprintf(stderr, "\n "), col = 4;
else
fprintf(stderr, " "), col++;
}
fprintf(stderr, "%s", buf);
col += n;
bol = 0;
} else {
overflow:
vfprintf(stderr, fmt, ap);
}
out:
va_end(ap);
}
ATF_TC(humanize_number_basic);
ATF_TC_HEAD(humanize_number_basic, tc)
{
atf_tc_set_md_var(tc, "descr", "Test humanize_number(3)");
}
ATF_TC_BODY(humanize_number_basic, tc)
{
char fbuf[128];
const struct hnopts *ho;
char *buf = NULL;
size_t buflen = 0;
unsigned int i;
int rv = 0;
for (i = 0; i < __arraycount(hnopts); i++) {
ho = &hnopts[i];
if (buflen < ho->ho_len) {
buflen = ho->ho_len;
buf = realloc(buf, buflen);
if (buf == NULL)
atf_tc_fail("realloc(..., %zu) failed", buflen);
}
rv = humanize_number(buf, ho->ho_len, ho->ho_num,
ho->ho_suffix, ho->ho_scale, ho->ho_flags);
if (rv == ho->ho_retval &&
(rv == -1 || strcmp(buf, ho->ho_retstr) == 0))
continue;
w_printf("humanize_number(\"%s\", %zu, %" PRId64 ",",
ho->ho_retstr, ho->ho_len, ho->ho_num);
w_printf("\"%s\",", ho->ho_suffix);
w_printf("%s,", formatflags(fbuf, sizeof(fbuf), scale_flags,
sizeof(scale_flags) / sizeof(scale_flags[0]),
ho->ho_scale));
w_printf("%s)", formatflags(fbuf, sizeof(fbuf), normal_flags,
sizeof(normal_flags) / sizeof(normal_flags[0]),
ho->ho_flags));
w_printf("= %d,", ho->ho_retval);
w_printf("but got");
w_printf("%d/[%s]", rv, rv == -1 ? "" : buf);
newline();
atf_tc_fail_nonfatal("Failed for table entry %d", i);
}
}
ATF_TC(humanize_number_big);
ATF_TC_HEAD(humanize_number_big, tc)
{
atf_tc_set_md_var(tc, "descr", "Test humanize "
"big numbers (PR lib/44097)");
}
ATF_TC_BODY(humanize_number_big, tc)
{
char buf[1024];
int rv;
/*
* Seems to work.
*/
(void)memset(buf, 0, sizeof(buf));
rv = humanize_number(buf, 10, 10000, "", HN_AUTOSCALE, HN_NOSPACE);
ATF_REQUIRE(rv != -1);
ATF_CHECK_STREQ(buf, "10000");
/*
* A bogus value with large number.
*/
(void)memset(buf, 0, sizeof(buf));
rv = humanize_number(buf, 10, INT64_MAX, "", HN_AUTOSCALE, HN_NOSPACE);
ATF_REQUIRE(rv != -1);
ATF_REQUIRE(strcmp(buf, "0") != 0);
/*
* Large buffer with HN_AUTOSCALE. Entirely bogus.
*/
(void)memset(buf, 0, sizeof(buf));
rv = humanize_number(buf, sizeof(buf), 10000, "",
HN_AUTOSCALE, HN_NOSPACE);
ATF_REQUIRE(rv != -1);
ATF_REQUIRE(strcmp(buf, "0%d%s%d%s%s%s") != 0);
/*
* Tight buffer.
*
* The man page says that len must be at least 4.
* 3 works, but anything less that will not. This
* is because baselen starts with 2 for positive
* numbers.
*/
(void)memset(buf, 0, sizeof(buf));
rv = humanize_number(buf, 3, 1, "", HN_AUTOSCALE, HN_NOSPACE);
ATF_REQUIRE(rv != -1);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, humanize_number_basic);
ATF_TP_ADD_TC(tp, humanize_number_big);
return atf_no_error();
}