/*
 * Ensure lmdb backend is disabled
 *
 *  Copyright (C) Mathieu Parent <math.parent@gmail.com> 2019
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/*
 * Ensure lmdb backend is disabled
 *
 * Setup and tear down code copied  from ldb_lmdb_test.c
 */

/*
 * from cmocka.c:
 * These headers or their equivalents should be included prior to
 * including
 * this header file.
 *
 * #include <stdarg.h>
 * #include <stddef.h>
 * #include <setjmp.h>
 *
 * This allows test applications to use custom definitions of C standard
 * library functions and types.
 *
 */
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#include <setjmp.h>
#include <cmocka.h>

#include <errno.h>
#include <unistd.h>
#include <talloc.h>
#include <tevent.h>
#include <ldb.h>

#define TEST_BE  "mdb"

struct ldbtest_ctx {
	struct tevent_context *ev;
	struct ldb_context *ldb;

	const char *dbfile;
	const char *lockfile;   /* lockfile is separate */

	const char *dbpath;
};

static void unlink_old_db(struct ldbtest_ctx *test_ctx)
{
	int ret;

	errno = 0;
	ret = unlink(test_ctx->lockfile);
	if (ret == -1 && errno != ENOENT) {
		fail();
	}

	errno = 0;
	ret = unlink(test_ctx->dbfile);
	if (ret == -1 && errno != ENOENT) {
		fail();
	}
}

static int ldbtest_noconn_setup(void **state)
{
	struct ldbtest_ctx *test_ctx;

	test_ctx = talloc_zero(NULL, struct ldbtest_ctx);
	assert_non_null(test_ctx);

	test_ctx->ev = tevent_context_init(test_ctx);
	assert_non_null(test_ctx->ev);

	test_ctx->ldb = ldb_init(test_ctx, test_ctx->ev);
	assert_non_null(test_ctx->ldb);

	test_ctx->dbfile = talloc_strdup(test_ctx, "apitest.ldb");
	assert_non_null(test_ctx->dbfile);

	test_ctx->lockfile = talloc_asprintf(test_ctx, "%s-lock",
					     test_ctx->dbfile);
	assert_non_null(test_ctx->lockfile);

	test_ctx->dbpath = talloc_asprintf(test_ctx,
			TEST_BE"://%s", test_ctx->dbfile);
	assert_non_null(test_ctx->dbpath);

	unlink_old_db(test_ctx);
	*state = test_ctx;
	return 0;
}

static int ldbtest_noconn_teardown(void **state)
{
	struct ldbtest_ctx *test_ctx = talloc_get_type_abort(*state,
							struct ldbtest_ctx);

	unlink_old_db(test_ctx);
	talloc_free(test_ctx);
	return 0;
}

static int ldbtest_setup(void **state)
{
	struct ldbtest_ctx *test_ctx;
	int ret;

	ldbtest_noconn_setup((void **) &test_ctx);

	ret = ldb_connect(test_ctx->ldb, test_ctx->dbpath, 0, NULL);
	assert_int_equal(ret, LDB_ERR_OTHER);

	*state = test_ctx;
	return 0;
}

static int ldbtest_teardown(void **state)
{
	struct ldbtest_ctx *test_ctx = talloc_get_type_abort(*state,
							struct ldbtest_ctx);
	ldbtest_noconn_teardown((void **) &test_ctx);
	return 0;
}

static void test_ldb_lmdb_not_found(void **state)
{
	// Actual test in ldbtest_setup
	assert_int_equal(0, 0);
}

int main(int argc, const char **argv)
{
	const struct CMUnitTest tests[] = {
		cmocka_unit_test_setup_teardown(
			test_ldb_lmdb_not_found,
			ldbtest_setup,
			ldbtest_teardown),
	};

	return cmocka_run_group_tests(tests, NULL, NULL);
}