/*
* Automated Testing Framework (atf)
*
* 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 <string.h>
#include <unistd.h>

#include <atf-c.h>

#include "detail/test_helpers.h"

ATF_TC(getopt);
ATF_TC_HEAD(getopt, tc)
{
   atf_tc_set_md_var(tc, "descr", "Checks if getopt(3) global state is "
       "reset by the test program driver so that test cases can use "
       "getopt(3) again");
}
ATF_TC_BODY(getopt, tc)
{
   /* Provide an option that is unknown to the test program driver and
    * one that is, together with an argument that would be swallowed by
    * the test program option if it were recognized. */
   int argc = 4;
   char arg1[] = "progname";
   char arg2[] = "-Z";
   char arg3[] = "-s";
   char arg4[] = "foo";
   char *const argv[] = { arg1, arg2, arg3, arg4, NULL };

   int ch;
   bool zflag;

   /* Given that this obviously is a test program, and that we used the
    * same driver to start, we can test getopt(3) right here without doing
    * any fancy stuff. */
   zflag = false;
   while ((ch = getopt(argc, argv, ":Z")) != -1) {
       switch (ch) {
       case 'Z':
           zflag = true;
           break;

       case '?':
       default:
           if (optopt != 's')
               atf_tc_fail("Unexpected unknown option -%c found", optopt);
       }
   }

   ATF_REQUIRE(zflag);
   ATF_REQUIRE_EQ_MSG(1, argc - optind, "Invalid number of arguments left "
       "after the call to getopt(3)");
   ATF_CHECK_STREQ_MSG("foo", argv[optind], "The non-option argument is "
       "invalid");
}

/* ---------------------------------------------------------------------
* Tests cases for the header file.
* --------------------------------------------------------------------- */

HEADER_TC(include, "atf-c/tp.h");

/* ---------------------------------------------------------------------
* Main.
* --------------------------------------------------------------------- */

ATF_TP_ADD_TCS(tp)
{
   ATF_TP_ADD_TC(tp, getopt);

   /* Add the test cases for the header file. */
   ATF_TP_ADD_TC(tp, include);

   return atf_no_error();
}