minix/tests/lib/libc/gen/t_randomid.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

93 lines
2.5 KiB
C

/* $NetBSD: t_randomid.c,v 1.3 2011/07/07 09:49:59 jruoho Exp $ */
/*-
* Copyright (c) 2010 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 <sys/types.h>
#include <assert.h>
#include <inttypes.h>
#include <randomid.h>
#include <stdio.h>
#include <string.h>
#define PERIOD 30000
uint64_t last[65536];
ATF_TC(randomid_basic);
ATF_TC_HEAD(randomid_basic, tc)
{
atf_tc_set_md_var(tc, "descr", "Check randomid(3)");
}
ATF_TC_BODY(randomid_basic, tc)
{
static randomid_t ctx = NULL;
uint64_t lowest, n, diff;
uint16_t id;
memset(last, 0, sizeof(last));
ctx = randomid_new(16, (long)3600);
lowest = UINT64_MAX;
for (n = 0; n < 1000000; n++) {
id = randomid(ctx);
if (last[id] > 0) {
diff = n - last[id];
if (diff <= lowest) {
if (lowest != UINT64_MAX)
printf("id %5d: last call at %9"PRIu64
", current call %9"PRIu64
" (diff %5"PRIu64"), "
"lowest %"PRIu64"\n",
id, last[id], n, diff, lowest);
ATF_REQUIRE_MSG(diff >= PERIOD,
"diff (%"PRIu64") less than minimum "
"period (%d)", diff, PERIOD);
lowest = diff;
}
}
last[id] = n;
}
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, randomid_basic);
return atf_no_error();
}