/*
* Automated Testing Framework (atf)
*
* Copyright (c) 2008 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 <sys/types.h>
#include <sys/wait.h>

#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include <atf-c.h>

#include "detail/fs.h"
#include "detail/process.h"
#include "detail/test_helpers.h"
#include "detail/text.h"

/* ---------------------------------------------------------------------
* Auxiliary functions.
* --------------------------------------------------------------------- */

static
void
create_ctl_file(const char *name)
{
   atf_fs_path_t p;

   RE(atf_fs_path_init_fmt(&p, "%s", name));
   ATF_REQUIRE(open(atf_fs_path_cstring(&p),
                  O_CREAT | O_WRONLY | O_TRUNC, 0644) != -1);
   atf_fs_path_fini(&p);
}

static
bool
exists(const char *p)
{
   bool b;
   atf_fs_path_t pp;

   RE(atf_fs_path_init_fmt(&pp, "%s", p));
   RE(atf_fs_exists(&pp, &b));
   atf_fs_path_fini(&pp);

   return b;
}

static
void
init_and_run_h_tc(const char *name, void (*head)(atf_tc_t *),
                 void (*body)(const atf_tc_t *))
{
   atf_tc_t tc;
   const char *const config[] = { NULL };

   RE(atf_tc_init(&tc, name, head, body, NULL, config));
   run_h_tc(&tc, "output", "error", "result");
   atf_tc_fini(&tc);
}

/* ---------------------------------------------------------------------
* Helper test cases.
* --------------------------------------------------------------------- */

#define H_DEF(id, macro) \
   ATF_TC_HEAD(h_ ## id, tc) \
   { \
       atf_tc_set_md_var(tc, "descr", "Helper test case"); \
   } \
   ATF_TC_BODY(h_ ## id, tc) \
   { \
       create_ctl_file("before"); \
       macro; \
       create_ctl_file("after"); \
   }

#define H_CHECK_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_check_ ## id)
#define H_CHECK_BODY_NAME(id) ATF_TC_BODY_NAME(h_check_ ## id)
#define H_CHECK(id, condition) \
   H_DEF(check_ ## id, ATF_CHECK(condition))

#define H_CHECK_MSG_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_check_msg_ ## id)
#define H_CHECK_MSG_BODY_NAME(id) ATF_TC_BODY_NAME(h_check_msg_ ## id)
#define H_CHECK_MSG(id, condition, msg) \
   H_DEF(check_msg_ ## id, ATF_CHECK_MSG(condition, msg))

#define H_CHECK_EQ_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_check_eq_ ## id)
#define H_CHECK_EQ_BODY_NAME(id) ATF_TC_BODY_NAME(h_check_eq_ ## id)
#define H_CHECK_EQ(id, v1, v2) \
   H_DEF(check_eq_ ## id, ATF_CHECK_EQ(v1, v2))

#define H_CHECK_STREQ_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_check_streq_ ## id)
#define H_CHECK_STREQ_BODY_NAME(id) ATF_TC_BODY_NAME(h_check_streq_ ## id)
#define H_CHECK_STREQ(id, v1, v2) \
   H_DEF(check_streq_ ## id, ATF_CHECK_STREQ(v1, v2))

#define H_CHECK_MATCH_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_check_match_ ## id)
#define H_CHECK_MATCH_BODY_NAME(id) ATF_TC_BODY_NAME(h_check_match_ ## id)
#define H_CHECK_MATCH(id, v1, v2) \
   H_DEF(check_match_ ## id, ATF_CHECK_MATCH(v1, v2))

#define H_CHECK_EQ_MSG_HEAD_NAME(id) \
   ATF_TC_HEAD_NAME(h_check_eq_msg_ ## id)
#define H_CHECK_EQ_MSG_BODY_NAME(id) \
   ATF_TC_BODY_NAME(h_check_eq_msg_ ## id)
#define H_CHECK_EQ_MSG(id, v1, v2, msg) \
   H_DEF(check_eq_msg_ ## id, ATF_CHECK_EQ_MSG(v1, v2, msg))

#define H_CHECK_STREQ_MSG_HEAD_NAME(id) \
   ATF_TC_HEAD_NAME(h_check_streq_msg_ ## id)
#define H_CHECK_STREQ_MSG_BODY_NAME(id) \
   ATF_TC_BODY_NAME(h_check_streq_msg_ ## id)
#define H_CHECK_STREQ_MSG(id, v1, v2, msg) \
   H_DEF(check_streq_msg_ ## id, ATF_CHECK_STREQ_MSG(v1, v2, msg))

#define H_CHECK_MATCH_MSG_HEAD_NAME(id) \
   ATF_TC_HEAD_NAME(h_check_match_msg_ ## id)
#define H_CHECK_MATCH_MSG_BODY_NAME(id) \
   ATF_TC_BODY_NAME(h_check_match_msg_ ## id)
#define H_CHECK_MATCH_MSG(id, v1, v2, msg) \
   H_DEF(check_match_msg_ ## id, ATF_CHECK_MATCH_MSG(v1, v2, msg))

#define H_CHECK_ERRNO_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_check_errno_ ## id)
#define H_CHECK_ERRNO_BODY_NAME(id) ATF_TC_BODY_NAME(h_check_errno_ ## id)
#define H_CHECK_ERRNO(id, exp_errno, bool_expr) \
   H_DEF(check_errno_ ## id, ATF_CHECK_ERRNO(exp_errno, bool_expr))

#define H_REQUIRE_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_require_ ## id)
#define H_REQUIRE_BODY_NAME(id) ATF_TC_BODY_NAME(h_require_ ## id)
#define H_REQUIRE(id, condition) \
   H_DEF(require_ ## id, ATF_REQUIRE(condition))

#define H_REQUIRE_MSG_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_require_msg_ ## id)
#define H_REQUIRE_MSG_BODY_NAME(id) ATF_TC_BODY_NAME(h_require_msg_ ## id)
#define H_REQUIRE_MSG(id, condition, msg) \
   H_DEF(require_msg_ ## id, ATF_REQUIRE_MSG(condition, msg))

#define H_REQUIRE_EQ_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_require_eq_ ## id)
#define H_REQUIRE_EQ_BODY_NAME(id) ATF_TC_BODY_NAME(h_require_eq_ ## id)
#define H_REQUIRE_EQ(id, v1, v2) \
   H_DEF(require_eq_ ## id, ATF_REQUIRE_EQ(v1, v2))

#define H_REQUIRE_STREQ_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_require_streq_ ## id)
#define H_REQUIRE_STREQ_BODY_NAME(id) ATF_TC_BODY_NAME(h_require_streq_ ## id)
#define H_REQUIRE_STREQ(id, v1, v2) \
   H_DEF(require_streq_ ## id, ATF_REQUIRE_STREQ(v1, v2))

#define H_REQUIRE_MATCH_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_require_match_ ## id)
#define H_REQUIRE_MATCH_BODY_NAME(id) ATF_TC_BODY_NAME(h_require_match_ ## id)
#define H_REQUIRE_MATCH(id, v1, v2) \
   H_DEF(require_match_ ## id, ATF_REQUIRE_MATCH(v1, v2))

#define H_REQUIRE_EQ_MSG_HEAD_NAME(id) \
   ATF_TC_HEAD_NAME(h_require_eq_msg_ ## id)
#define H_REQUIRE_EQ_MSG_BODY_NAME(id) \
   ATF_TC_BODY_NAME(h_require_eq_msg_ ## id)
#define H_REQUIRE_EQ_MSG(id, v1, v2, msg) \
   H_DEF(require_eq_msg_ ## id, ATF_REQUIRE_EQ_MSG(v1, v2, msg))

#define H_REQUIRE_STREQ_MSG_HEAD_NAME(id) \
   ATF_TC_HEAD_NAME(h_require_streq_msg_ ## id)
#define H_REQUIRE_STREQ_MSG_BODY_NAME(id) \
   ATF_TC_BODY_NAME(h_require_streq_msg_ ## id)
#define H_REQUIRE_STREQ_MSG(id, v1, v2, msg) \
   H_DEF(require_streq_msg_ ## id, ATF_REQUIRE_STREQ_MSG(v1, v2, msg))

#define H_REQUIRE_MATCH_MSG_HEAD_NAME(id) \
   ATF_TC_HEAD_NAME(h_require_match_msg_ ## id)
#define H_REQUIRE_MATCH_MSG_BODY_NAME(id) \
   ATF_TC_BODY_NAME(h_require_match_msg_ ## id)
#define H_REQUIRE_MATCH_MSG(id, v1, v2, msg) \
   H_DEF(require_match_msg_ ## id, ATF_REQUIRE_MATCH_MSG(v1, v2, msg))

#define H_REQUIRE_ERRNO_HEAD_NAME(id) ATF_TC_HEAD_NAME(h_require_errno_ ## id)
#define H_REQUIRE_ERRNO_BODY_NAME(id) ATF_TC_BODY_NAME(h_require_errno_ ## id)
#define H_REQUIRE_ERRNO(id, exp_errno, bool_expr) \
   H_DEF(require_errno_ ## id, ATF_REQUIRE_ERRNO(exp_errno, bool_expr))

/* ---------------------------------------------------------------------
* Test cases for the ATF_{CHECK,REQUIRE}_ERRNO macros.
* --------------------------------------------------------------------- */

static int
errno_fail_stub(const int raised_errno)
{
   errno = raised_errno;
   return -1;
}

static int
errno_ok_stub(void)
{
   return 0;
}

H_CHECK_ERRNO(no_error, -1, errno_ok_stub() == -1);
H_CHECK_ERRNO(errno_ok, 2, errno_fail_stub(2) == -1);
H_CHECK_ERRNO(errno_fail, 3, errno_fail_stub(4) == -1);

H_REQUIRE_ERRNO(no_error, -1, errno_ok_stub() == -1);
H_REQUIRE_ERRNO(errno_ok, 2, errno_fail_stub(2) == -1);
H_REQUIRE_ERRNO(errno_fail, 3, errno_fail_stub(4) == -1);

ATF_TC(check_errno);
ATF_TC_HEAD(check_errno, tc)
{
   atf_tc_set_md_var(tc, "descr", "Tests the ATF_CHECK_ERRNO macro");
}
ATF_TC_BODY(check_errno, tc)
{
   struct test {
       void (*head)(atf_tc_t *);
       void (*body)(const atf_tc_t *);
       bool ok;
       const char *exp_regex;
   } *t, tests[] = {
       { H_CHECK_ERRNO_HEAD_NAME(no_error),
         H_CHECK_ERRNO_BODY_NAME(no_error),
         false, "Expected true value in errno_ok_stub\\(\\) == -1" },
       { H_CHECK_ERRNO_HEAD_NAME(errno_ok),
         H_CHECK_ERRNO_BODY_NAME(errno_ok),
         true, NULL },
       { H_CHECK_ERRNO_HEAD_NAME(errno_fail),
         H_CHECK_ERRNO_BODY_NAME(errno_fail),
         false, "Expected errno 3, got 4, in errno_fail_stub\\(4\\) == -1" },
       { NULL, NULL, false, NULL }
   };

   for (t = &tests[0]; t->head != NULL; t++) {
       init_and_run_h_tc("h_check_errno", t->head, t->body);

       ATF_REQUIRE(exists("before"));
       ATF_REQUIRE(exists("after"));

       if (t->ok) {
           ATF_REQUIRE(atf_utils_grep_file("^passed", "result"));
       } else {
           ATF_REQUIRE(atf_utils_grep_file("^failed", "result"));
           ATF_REQUIRE(atf_utils_grep_file(
               "macros_test.c:[0-9]+: %s$", "error", t->exp_regex));
       }

       ATF_REQUIRE(unlink("before") != -1);
       ATF_REQUIRE(unlink("after") != -1);
   }
}

ATF_TC(require_errno);
ATF_TC_HEAD(require_errno, tc)
{
   atf_tc_set_md_var(tc, "descr", "Tests the ATF_REQUIRE_ERRNO macro");
}
ATF_TC_BODY(require_errno, tc)
{
   struct test {
       void (*head)(atf_tc_t *);
       void (*body)(const atf_tc_t *);
       bool ok;
       const char *exp_regex;
   } *t, tests[] = {
       { H_REQUIRE_ERRNO_HEAD_NAME(no_error),
         H_REQUIRE_ERRNO_BODY_NAME(no_error),
         false, "Expected true value in errno_ok_stub\\(\\) == -1" },
       { H_REQUIRE_ERRNO_HEAD_NAME(errno_ok),
         H_REQUIRE_ERRNO_BODY_NAME(errno_ok),
         true, NULL },
       { H_REQUIRE_ERRNO_HEAD_NAME(errno_fail),
         H_REQUIRE_ERRNO_BODY_NAME(errno_fail),
         false, "Expected errno 3, got 4, in errno_fail_stub\\(4\\) == -1" },
       { NULL, NULL, false, NULL }
   };

   for (t = &tests[0]; t->head != NULL; t++) {
       init_and_run_h_tc("h_require_errno", t->head, t->body);

       ATF_REQUIRE(exists("before"));
       if (t->ok) {
           ATF_REQUIRE(atf_utils_grep_file("^passed", "result"));
           ATF_REQUIRE(exists("after"));
       } else {
           ATF_REQUIRE(atf_utils_grep_file(
               "^failed: .*macros_test.c:[0-9]+: %s$", "result",
               t->exp_regex));
           ATF_REQUIRE(!exists("after"));
       }

       ATF_REQUIRE(unlink("before") != -1);
       if (t->ok)
           ATF_REQUIRE(unlink("after") != -1);
   }
}

/* ---------------------------------------------------------------------
* Test cases for the ATF_CHECK and ATF_CHECK_MSG macros.
* --------------------------------------------------------------------- */

H_CHECK(0, 0);
H_CHECK(1, 1);
H_CHECK_MSG(0, 0, "expected a false value");
H_CHECK_MSG(1, 1, "expected a true value");

ATF_TC(check);
ATF_TC_HEAD(check, tc)
{
   atf_tc_set_md_var(tc, "descr", "Tests the ATF_CHECK and "
                     "ATF_CHECK_MSG macros");
}
ATF_TC_BODY(check, tc)
{
   struct test {
       void (*head)(atf_tc_t *);
       void (*body)(const atf_tc_t *);
       bool value;
       const char *msg;
       bool ok;
   } *t, tests[] = {
       { H_CHECK_HEAD_NAME(0), H_CHECK_BODY_NAME(0), 0,
         "0 not met", false },
       { H_CHECK_HEAD_NAME(1), H_CHECK_BODY_NAME(1), 1,
         "1 not met", true },
       { H_CHECK_MSG_HEAD_NAME(0), H_CHECK_MSG_BODY_NAME(0), 0,
         "expected a false value", false },
       { H_CHECK_MSG_HEAD_NAME(1), H_CHECK_MSG_BODY_NAME(1), 1,
         "expected a true value", true },
       { NULL, NULL, false, NULL, false }
   };

   for (t = &tests[0]; t->head != NULL; t++) {
       printf("Checking with a %d value\n", t->value);

       init_and_run_h_tc("h_check", t->head, t->body);

       ATF_REQUIRE(exists("before"));
       ATF_REQUIRE(exists("after"));

       if (t->ok) {
           ATF_REQUIRE(atf_utils_grep_file("^passed", "result"));
       } else {
           ATF_REQUIRE(atf_utils_grep_file("^failed", "result"));
           ATF_REQUIRE(atf_utils_grep_file("Check failed: .*"
               "macros_test.c:[0-9]+: %s$", "error", t->msg));
       }

       ATF_REQUIRE(unlink("before") != -1);
       ATF_REQUIRE(unlink("after") != -1);
   }
}

/* ---------------------------------------------------------------------
* Test cases for the ATF_CHECK_*EQ_ macros.
* --------------------------------------------------------------------- */

struct check_eq_test {
   void (*head)(atf_tc_t *);
   void (*body)(const atf_tc_t *);
   const char *v1;
   const char *v2;
   const char *msg;
   bool ok;
};

static
void
do_check_eq_tests(const struct check_eq_test *tests)
{
   const struct check_eq_test *t;

   for (t = &tests[0]; t->head != NULL; t++) {
       printf("Checking with %s, %s and expecting %s\n", t->v1, t->v2,
              t->ok ? "true" : "false");

       init_and_run_h_tc("h_check", t->head, t->body);

       ATF_CHECK(exists("before"));
       ATF_CHECK(exists("after"));

       if (t->ok) {
           ATF_REQUIRE(atf_utils_grep_file("^passed", "result"));
       } else {
           ATF_REQUIRE(atf_utils_grep_file("^failed", "result"));
           ATF_CHECK(atf_utils_grep_file("Check failed: .*"
               "macros_test.c:[0-9]+: %s$", "error", t->msg));
       }

       ATF_CHECK(unlink("before") != -1);
       ATF_CHECK(unlink("after") != -1);
   }
}

H_CHECK_EQ(1_1, 1, 1);
H_CHECK_EQ(1_2, 1, 2);
H_CHECK_EQ(2_1, 2, 1);
H_CHECK_EQ(2_2, 2, 2);
H_CHECK_EQ_MSG(1_1, 1, 1, "1 does not match 1");
H_CHECK_EQ_MSG(1_2, 1, 2, "1 does not match 2");
H_CHECK_EQ_MSG(2_1, 2, 1, "2 does not match 1");
H_CHECK_EQ_MSG(2_2, 2, 2, "2 does not match 2");

ATF_TC(check_eq);
ATF_TC_HEAD(check_eq, tc)
{
   atf_tc_set_md_var(tc, "descr", "Tests the ATF_CHECK_EQ and "
                     "ATF_CHECK_EQ_MSG macros");
}
ATF_TC_BODY(check_eq, tc)
{
   struct check_eq_test tests[] = {
       { H_CHECK_EQ_HEAD_NAME(1_1), H_CHECK_EQ_BODY_NAME(1_1),
         "1", "1", "1 != 1", true },
       { H_CHECK_EQ_HEAD_NAME(1_2), H_CHECK_EQ_BODY_NAME(1_2),
         "1", "2", "1 != 2", false },
       { H_CHECK_EQ_HEAD_NAME(2_1), H_CHECK_EQ_BODY_NAME(2_1),
         "2", "1", "2 != 1", false },
       { H_CHECK_EQ_HEAD_NAME(2_2), H_CHECK_EQ_BODY_NAME(2_2),
         "2", "2", "2 != 2", true },
       { H_CHECK_EQ_MSG_HEAD_NAME(1_1), H_CHECK_EQ_MSG_BODY_NAME(1_1),
         "1", "1", "1 != 1: 1 does not match 1", true },
       { H_CHECK_EQ_MSG_HEAD_NAME(1_2), H_CHECK_EQ_MSG_BODY_NAME(1_2),
         "1", "2", "1 != 2: 1 does not match 2", false },
       { H_CHECK_EQ_MSG_HEAD_NAME(2_1), H_CHECK_EQ_MSG_BODY_NAME(2_1),
         "2", "1", "2 != 1: 2 does not match 1", false },
       { H_CHECK_EQ_MSG_HEAD_NAME(2_2), H_CHECK_EQ_MSG_BODY_NAME(2_2),
         "2", "2", "2 != 2: 2 does not match 2", true },
       { NULL, NULL, 0, 0, "", false }
   };
   do_check_eq_tests(tests);
}

H_CHECK_STREQ(1_1, "1", "1");
H_CHECK_STREQ(1_2, "1", "2");
H_CHECK_STREQ(2_1, "2", "1");
H_CHECK_STREQ(2_2, "2", "2");
H_CHECK_STREQ_MSG(1_1, "1", "1", "1 does not match 1");
H_CHECK_STREQ_MSG(1_2, "1", "2", "1 does not match 2");
H_CHECK_STREQ_MSG(2_1, "2", "1", "2 does not match 1");
H_CHECK_STREQ_MSG(2_2, "2", "2", "2 does not match 2");
#define CHECK_STREQ_VAR1 "5"
#define CHECK_STREQ_VAR2 "9"
const char *check_streq_var1 = CHECK_STREQ_VAR1;
const char *check_streq_var2 = CHECK_STREQ_VAR2;
H_CHECK_STREQ(vars, check_streq_var1, check_streq_var2);

ATF_TC(check_streq);
ATF_TC_HEAD(check_streq, tc)
{
   atf_tc_set_md_var(tc, "descr", "Tests the ATF_CHECK_STREQ and "
                     "ATF_CHECK_STREQ_MSG macros");
}
ATF_TC_BODY(check_streq, tc)
{
   struct check_eq_test tests[] = {
       { H_CHECK_STREQ_HEAD_NAME(1_1), H_CHECK_STREQ_BODY_NAME(1_1),
         "1", "1", "\"1\" != \"1\" \\(1 != 1\\)", true },
       { H_CHECK_STREQ_HEAD_NAME(1_2), H_CHECK_STREQ_BODY_NAME(1_2),
         "1", "2", "\"1\" != \"2\" \\(1 != 2\\)", false },
       { H_CHECK_STREQ_HEAD_NAME(2_1), H_CHECK_STREQ_BODY_NAME(2_1),
         "2", "1", "\"2\" != \"1\" \\(2 != 1\\)", false },
       { H_CHECK_STREQ_HEAD_NAME(2_2), H_CHECK_STREQ_BODY_NAME(2_2),
         "2", "2", "\"2\" != \"2\" \\(2 != 2\\)", true },
       { H_CHECK_STREQ_MSG_HEAD_NAME(1_1),
         H_CHECK_STREQ_MSG_BODY_NAME(1_1),
         "1", "1", "\"1\" != \"1\" \\(1 != 1\\): 1 does not match 1", true },
       { H_CHECK_STREQ_MSG_HEAD_NAME(1_2),
         H_CHECK_STREQ_MSG_BODY_NAME(1_2),
         "1", "2", "\"1\" != \"2\" \\(1 != 2\\): 1 does not match 2", false },
       { H_CHECK_STREQ_MSG_HEAD_NAME(2_1),
         H_CHECK_STREQ_MSG_BODY_NAME(2_1),
         "2", "1", "\"2\" != \"1\" \\(2 != 1\\): 2 does not match 1", false },
       { H_CHECK_STREQ_MSG_HEAD_NAME(2_2),
         H_CHECK_STREQ_MSG_BODY_NAME(2_2),
         "2", "2", "\"2\" != \"2\" \\(2 != 2\\): 2 does not match 2", true },
       { H_CHECK_STREQ_HEAD_NAME(vars), H_CHECK_STREQ_BODY_NAME(vars),
         check_streq_var1, check_streq_var2,
         "check_streq_var1 != check_streq_var2 \\("
         CHECK_STREQ_VAR1 " != " CHECK_STREQ_VAR2 "\\)", false },
       { NULL, NULL, 0, 0, "", false }
   };
   do_check_eq_tests(tests);
}

/* ---------------------------------------------------------------------
* Test cases for the ATF_CHECK_MATCH and ATF_CHECK_MATCH_MSG macros.
* --------------------------------------------------------------------- */

H_CHECK_MATCH(yes, "hello [a-z]+", "abc hello world");
H_CHECK_MATCH(no, "hello [a-z]+", "abc hello WORLD");
H_CHECK_MATCH_MSG(yes, "hello [a-z]+", "abc hello world", "lowercase");
H_CHECK_MATCH_MSG(no, "hello [a-z]+", "abc hello WORLD", "uppercase");

ATF_TC(check_match);
ATF_TC_HEAD(check_match, tc)
{
   atf_tc_set_md_var(tc, "descr", "Tests the ATF_CHECK_MATCH and "
                     "ATF_CHECK_MATCH_MSG macros");
}
ATF_TC_BODY(check_match, tc)
{
   struct check_eq_test tests[] = {
       { H_CHECK_MATCH_HEAD_NAME(yes), H_CHECK_MATCH_BODY_NAME(yes),
         "hello [a-z]+", "abc hello world", "", true },
       { H_CHECK_MATCH_HEAD_NAME(no), H_CHECK_MATCH_BODY_NAME(no),
         "hello [a-z]+", "abc hello WORLD",
         "'hello \\[a-z\\]\\+' not matched in 'abc hello WORLD'", false },
       { H_CHECK_MATCH_MSG_HEAD_NAME(yes), H_CHECK_MATCH_MSG_BODY_NAME(yes),
         "hello [a-z]+", "abc hello world", "", true },
       { H_CHECK_MATCH_MSG_HEAD_NAME(no), H_CHECK_MATCH_MSG_BODY_NAME(no),
         "hello [a-z]+", "abc hello WORLD",
         "'hello \\[a-z\\]\\+' not matched in 'abc hello WORLD': uppercase",
         false },
       { NULL, NULL, 0, 0, "", false }
   };
   do_check_eq_tests(tests);
}

/* ---------------------------------------------------------------------
* Test cases for the ATF_REQUIRE and ATF_REQUIRE_MSG macros.
* --------------------------------------------------------------------- */

H_REQUIRE(0, 0);
H_REQUIRE(1, 1);
H_REQUIRE_MSG(0, 0, "expected a false value");
H_REQUIRE_MSG(1, 1, "expected a true value");

ATF_TC(require);
ATF_TC_HEAD(require, tc)
{
   atf_tc_set_md_var(tc, "descr", "Tests the ATF_REQUIRE and "
                     "ATF_REQUIRE_MSG macros");
}
ATF_TC_BODY(require, tc)
{
   struct test {
       void (*head)(atf_tc_t *);
       void (*body)(const atf_tc_t *);
       bool value;
       const char *msg;
       bool ok;
   } *t, tests[] = {
       { H_REQUIRE_HEAD_NAME(0), H_REQUIRE_BODY_NAME(0), 0,
         "0 not met", false },
       { H_REQUIRE_HEAD_NAME(1), H_REQUIRE_BODY_NAME(1), 1,
         "1 not met", true },
       { H_REQUIRE_MSG_HEAD_NAME(0), H_REQUIRE_MSG_BODY_NAME(0), 0,
         "expected a false value", false },
       { H_REQUIRE_MSG_HEAD_NAME(1), H_REQUIRE_MSG_BODY_NAME(1), 1,
         "expected a true value", true },
       { NULL, NULL, false, NULL, false }
   };

   for (t = &tests[0]; t->head != NULL; t++) {
       printf("Checking with a %d value\n", t->value);

       init_and_run_h_tc("h_require", t->head, t->body);

       ATF_REQUIRE(exists("before"));
       if (t->ok) {
           ATF_REQUIRE(atf_utils_grep_file("^passed", "result"));
           ATF_REQUIRE(exists("after"));
       } else {
           ATF_REQUIRE(atf_utils_grep_file(
               "^failed: .*macros_test.c:[0-9]+: %s$", "result", t->msg));
           ATF_REQUIRE(!exists("after"));
       }

       ATF_REQUIRE(unlink("before") != -1);
       if (t->ok)
           ATF_REQUIRE(unlink("after") != -1);
   }
}

/* ---------------------------------------------------------------------
* Test cases for the ATF_REQUIRE_*EQ_ macros.
* --------------------------------------------------------------------- */

struct require_eq_test {
   void (*head)(atf_tc_t *);
   void (*body)(const atf_tc_t *);
   const char *v1;
   const char *v2;
   const char *msg;
   bool ok;
};

static
void
do_require_eq_tests(const struct require_eq_test *tests)
{
   const struct require_eq_test *t;

   for (t = &tests[0]; t->head != NULL; t++) {
       printf("Checking with %s, %s and expecting %s\n", t->v1, t->v2,
              t->ok ? "true" : "false");

       init_and_run_h_tc("h_require", t->head, t->body);

       ATF_REQUIRE(exists("before"));
       if (t->ok) {
           ATF_REQUIRE(atf_utils_grep_file("^passed", "result"));
           ATF_REQUIRE(exists("after"));
       } else {
           ATF_REQUIRE(atf_utils_grep_file("^failed: .*macros_test.c"
               ":[0-9]+: %s$", "result", t->msg));
           ATF_REQUIRE(!exists("after"));
       }

       ATF_REQUIRE(unlink("before") != -1);
       if (t->ok)
           ATF_REQUIRE(unlink("after") != -1);
   }
}

H_REQUIRE_EQ(1_1, 1, 1);
H_REQUIRE_EQ(1_2, 1, 2);
H_REQUIRE_EQ(2_1, 2, 1);
H_REQUIRE_EQ(2_2, 2, 2);
H_REQUIRE_EQ_MSG(1_1, 1, 1, "1 does not match 1");
H_REQUIRE_EQ_MSG(1_2, 1, 2, "1 does not match 2");
H_REQUIRE_EQ_MSG(2_1, 2, 1, "2 does not match 1");
H_REQUIRE_EQ_MSG(2_2, 2, 2, "2 does not match 2");

ATF_TC(require_eq);
ATF_TC_HEAD(require_eq, tc)
{
   atf_tc_set_md_var(tc, "descr", "Tests the ATF_REQUIRE_EQ and "
                     "ATF_REQUIRE_EQ_MSG macros");
}
ATF_TC_BODY(require_eq, tc)
{
   struct require_eq_test tests[] = {
       { H_REQUIRE_EQ_HEAD_NAME(1_1), H_REQUIRE_EQ_BODY_NAME(1_1),
         "1", "1", "1 != 1", true },
       { H_REQUIRE_EQ_HEAD_NAME(1_2), H_REQUIRE_EQ_BODY_NAME(1_2),
         "1", "2", "1 != 2", false },
       { H_REQUIRE_EQ_HEAD_NAME(2_1), H_REQUIRE_EQ_BODY_NAME(2_1),
         "2", "1", "2 != 1", false },
       { H_REQUIRE_EQ_HEAD_NAME(2_2), H_REQUIRE_EQ_BODY_NAME(2_2),
         "2", "2", "2 != 2", true },
       { H_REQUIRE_EQ_MSG_HEAD_NAME(1_1), H_REQUIRE_EQ_MSG_BODY_NAME(1_1),
         "1", "1", "1 != 1: 1 does not match 1", true },
       { H_REQUIRE_EQ_MSG_HEAD_NAME(1_2), H_REQUIRE_EQ_MSG_BODY_NAME(1_2),
         "1", "2", "1 != 2: 1 does not match 2", false },
       { H_REQUIRE_EQ_MSG_HEAD_NAME(2_1), H_REQUIRE_EQ_MSG_BODY_NAME(2_1),
         "2", "1", "2 != 1: 2 does not match 1", false },
       { H_REQUIRE_EQ_MSG_HEAD_NAME(2_2), H_REQUIRE_EQ_MSG_BODY_NAME(2_2),
         "2", "2", "2 != 2: 2 does not match 2", true },
       { NULL, NULL, 0, 0, "", false }
   };
   do_require_eq_tests(tests);
}

H_REQUIRE_STREQ(1_1, "1", "1");
H_REQUIRE_STREQ(1_2, "1", "2");
H_REQUIRE_STREQ(2_1, "2", "1");
H_REQUIRE_STREQ(2_2, "2", "2");
H_REQUIRE_STREQ_MSG(1_1, "1", "1", "1 does not match 1");
H_REQUIRE_STREQ_MSG(1_2, "1", "2", "1 does not match 2");
H_REQUIRE_STREQ_MSG(2_1, "2", "1", "2 does not match 1");
H_REQUIRE_STREQ_MSG(2_2, "2", "2", "2 does not match 2");
#define REQUIRE_STREQ_VAR1 "5"
#define REQUIRE_STREQ_VAR2 "9"
const char *require_streq_var1 = REQUIRE_STREQ_VAR1;
const char *require_streq_var2 = REQUIRE_STREQ_VAR2;
H_REQUIRE_STREQ(vars, require_streq_var1, require_streq_var2);

ATF_TC(require_streq);
ATF_TC_HEAD(require_streq, tc)
{
   atf_tc_set_md_var(tc, "descr", "Tests the ATF_REQUIRE_STREQ and "
                     "ATF_REQUIRE_STREQ_MSG macros");
}
ATF_TC_BODY(require_streq, tc)
{
   struct require_eq_test tests[] = {
       { H_REQUIRE_STREQ_HEAD_NAME(1_1), H_REQUIRE_STREQ_BODY_NAME(1_1),
         "1", "1", "\"1\" != \"1\" \\(1 != 1\\)", true },
       { H_REQUIRE_STREQ_HEAD_NAME(1_2), H_REQUIRE_STREQ_BODY_NAME(1_2),
         "1", "2", "\"1\" != \"2\" \\(1 != 2\\)", false },
       { H_REQUIRE_STREQ_HEAD_NAME(2_1), H_REQUIRE_STREQ_BODY_NAME(2_1),
         "2", "1", "\"2\" != \"1\" \\(2 != 1\\)", false },
       { H_REQUIRE_STREQ_HEAD_NAME(2_2), H_REQUIRE_STREQ_BODY_NAME(2_2),
         "2", "2", "\"2\" != \"2\" \\(2 != 2\\)", true },
       { H_REQUIRE_STREQ_MSG_HEAD_NAME(1_1),
         H_REQUIRE_STREQ_MSG_BODY_NAME(1_1),
         "1", "1", "\"1\" != \"1\" \\(1 != 1\\): 1 does not match 1", true },
       { H_REQUIRE_STREQ_MSG_HEAD_NAME(1_2),
         H_REQUIRE_STREQ_MSG_BODY_NAME(1_2),
         "1", "2", "\"1\" != \"2\" \\(1 != 2\\): 1 does not match 2", false },
       { H_REQUIRE_STREQ_MSG_HEAD_NAME(2_1),
         H_REQUIRE_STREQ_MSG_BODY_NAME(2_1),
         "2", "1", "\"2\" != \"1\" \\(2 != 1\\): 2 does not match 1", false },
       { H_REQUIRE_STREQ_MSG_HEAD_NAME(2_2),
         H_REQUIRE_STREQ_MSG_BODY_NAME(2_2),
         "2", "2", "\"2\" != \"2\" \\(2 != 2\\): 2 does not match 2", true },
       { H_REQUIRE_STREQ_HEAD_NAME(vars), H_REQUIRE_STREQ_BODY_NAME(vars),
         require_streq_var1, require_streq_var2,
         "require_streq_var1 != require_streq_var2 \\("
         REQUIRE_STREQ_VAR1 " != " REQUIRE_STREQ_VAR2 "\\)", false },
       { NULL, NULL, 0, 0, "", false }
   };
   do_require_eq_tests(tests);
}

/* ---------------------------------------------------------------------
* Test cases for the ATF_REQUIRE_MATCH and ATF_REQUIRE_MATCH_MSG macros.
* --------------------------------------------------------------------- */

H_REQUIRE_MATCH(yes, "hello [a-z]+", "abc hello world");
H_REQUIRE_MATCH(no, "hello [a-z]+", "abc hello WORLD");
H_REQUIRE_MATCH_MSG(yes, "hello [a-z]+", "abc hello world", "lowercase");
H_REQUIRE_MATCH_MSG(no, "hello [a-z]+", "abc hello WORLD", "uppercase");

ATF_TC(require_match);
ATF_TC_HEAD(require_match, tc)
{
   atf_tc_set_md_var(tc, "descr", "Tests the ATF_REQUIRE_MATCH and "
                     "ATF_REQUIRE_MATCH_MSG macros");
}
ATF_TC_BODY(require_match, tc)
{
   struct require_eq_test tests[] = {
       { H_REQUIRE_MATCH_HEAD_NAME(yes), H_REQUIRE_MATCH_BODY_NAME(yes),
         "hello [a-z]+", "abc hello world", "", true },
       { H_REQUIRE_MATCH_HEAD_NAME(no), H_REQUIRE_MATCH_BODY_NAME(no),
         "hello [a-z]+", "abc hello WORLD",
         "'hello \\[a-z\\]\\+' not matched in 'abc hello WORLD'", false },
       { H_REQUIRE_MATCH_MSG_HEAD_NAME(yes),
         H_REQUIRE_MATCH_MSG_BODY_NAME(yes),
         "hello [a-z]+", "abc hello world", "", true },
       { H_REQUIRE_MATCH_MSG_HEAD_NAME(no), H_REQUIRE_MATCH_MSG_BODY_NAME(no),
         "hello [a-z]+", "abc hello WORLD",
         "'hello \\[a-z\\]\\+' not matched in 'abc hello WORLD': uppercase",
         false },
       { NULL, NULL, 0, 0, "", false }
   };
   do_require_eq_tests(tests);
}

/* ---------------------------------------------------------------------
* Miscellaneous test cases covering several macros.
* --------------------------------------------------------------------- */

static
bool
aux_bool(const char *fmt ATF_DEFS_ATTRIBUTE_UNUSED)
{
   return false;
}

static
const char *
aux_str(const char *fmt ATF_DEFS_ATTRIBUTE_UNUSED)
{
   return "foo";
}

H_CHECK(msg, aux_bool("%d"));
H_REQUIRE(msg, aux_bool("%d"));
H_CHECK_STREQ(msg, aux_str("%d"), "");
H_REQUIRE_STREQ(msg, aux_str("%d"), "");

ATF_TC(msg_embedded_fmt);
ATF_TC_HEAD(msg_embedded_fmt, tc)
{
   atf_tc_set_md_var(tc, "descr", "Tests that format strings passed "
                     "as part of the automatically-generated messages "
                     "do not get expanded");
}
ATF_TC_BODY(msg_embedded_fmt, tc)
{
   struct test {
       void (*head)(atf_tc_t *);
       void (*body)(const atf_tc_t *);
       bool fatal;
       const char *msg;
   } *t, tests[] = {
      {  H_CHECK_HEAD_NAME(msg), H_CHECK_BODY_NAME(msg), false,
         "aux_bool\\(\"%d\"\\) not met" },
      {  H_REQUIRE_HEAD_NAME(msg), H_REQUIRE_BODY_NAME(msg), true,
         "aux_bool\\(\"%d\"\\) not met" },
      {  H_CHECK_STREQ_HEAD_NAME(msg), H_CHECK_STREQ_BODY_NAME(msg), false,
         "aux_str\\(\"%d\"\\) != \"\" \\(foo != \\)" },
      {  H_REQUIRE_STREQ_HEAD_NAME(msg), H_REQUIRE_STREQ_BODY_NAME(msg), true,
         "aux_str\\(\"%d\"\\) != \"\" \\(foo != \\)" },
      { NULL, NULL, false, NULL }
   };

   for (t = &tests[0]; t->head != NULL; t++) {
       printf("Checking with an expected '%s' message\n", t->msg);

       init_and_run_h_tc("h_check", t->head, t->body);

       if (t->fatal) {
           bool matched =
               atf_utils_grep_file(
                   "^failed: .*macros_test.c:[0-9]+: %s$", "result", t->msg);
           ATF_CHECK_MSG(matched, "couldn't find error string in result");
       } else {
           bool matched = atf_utils_grep_file("Check failed: .*"
               "macros_test.c:[0-9]+: %s$", "error", t->msg);
           ATF_CHECK_MSG(matched, "couldn't find error string in output");
       }
   }
}

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

HEADER_TC(include, "atf-c/macros.h");
BUILD_TC(use, "macros_h_test.c",
        "Tests that the macros provided by the atf-c/macros.h file "
        "do not cause syntax errors when used",
        "Build of macros_h_test.c failed; some macros in atf-c/macros.h "
        "are broken");

ATF_TC(detect_unused_tests);
ATF_TC_HEAD(detect_unused_tests, tc)
{
   atf_tc_set_md_var(tc, "descr",
                     "Tests that defining an unused test case raises a "
                     "warning (and thus an error)");
}
ATF_TC_BODY(detect_unused_tests, tc)
{
   const char* validate_compiler =
       "struct test_struct { int dummy; };\n"
       "#define define_unused static struct test_struct unused\n"
       "define_unused;\n";

   atf_utils_create_file("compiler_test.c", "%s", validate_compiler);
   if (build_check_c_o("compiler_test.c"))
       atf_tc_expect_fail("Compiler does not raise a warning on an unused "
                          "static global variable declared by a macro");

#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
       atf_tc_expect_fail("PR 49187");
#endif

   if (build_check_c_o_srcdir(tc, "unused_test.c"))
       atf_tc_fail("Build of unused_test.c passed; unused test cases are "
                   "not properly detected");
}

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

ATF_TP_ADD_TCS(tp)
{
   ATF_TP_ADD_TC(tp, check);
   ATF_TP_ADD_TC(tp, check_eq);
   ATF_TP_ADD_TC(tp, check_streq);
   ATF_TP_ADD_TC(tp, check_errno);
   ATF_TP_ADD_TC(tp, check_match);

   ATF_TP_ADD_TC(tp, require);
   ATF_TP_ADD_TC(tp, require_eq);
   ATF_TP_ADD_TC(tp, require_streq);
   ATF_TP_ADD_TC(tp, require_errno);
   ATF_TP_ADD_TC(tp, require_match);

   ATF_TP_ADD_TC(tp, msg_embedded_fmt);

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

   return atf_no_error();
}