/*

 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.

 *

 * This code 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

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

#include "precompiled.hpp"

#include "memory/metaspace/spaceManager.hpp"

using metaspace::SpaceManager;

// The test function is only available in debug builds

#ifdef ASSERT

#include "unittest.hpp"

static void test_adjust_initial_chunk_size(bool is_class) {

  const size_t smallest = SpaceManager::smallest_chunk_size(is_class);

  const size_t normal   = SpaceManager::small_chunk_size(is_class);

  const size_t medium   = SpaceManager::medium_chunk_size(is_class);

#define do_test(value, expected, is_class_value)                                 \

    do {                                                                         \

      size_t v = value;                                                          \

      size_t e = expected;                                                       \

      assert(SpaceManager::adjust_initial_chunk_size(v, (is_class_value)) == e,  \

             "Expected: " SIZE_FORMAT " got: " SIZE_FORMAT, e, v);               \

    } while (0)

    // Smallest (specialized)

    do_test(1,            smallest, is_class);

    do_test(smallest - 1, smallest, is_class);

    do_test(smallest,     smallest, is_class);

    // Small

    do_test(smallest + 1, normal, is_class);

    do_test(normal - 1,   normal, is_class);

    do_test(normal,       normal, is_class);

    // Medium

    do_test(normal + 1, medium, is_class);

    do_test(medium - 1, medium, is_class);

    do_test(medium,     medium, is_class);

    // Humongous

    do_test(medium + 1, medium + 1, is_class);

#undef test_adjust_initial_chunk_size

}

TEST(SpaceManager, adjust_initial_chunk_size) {

  test_adjust_initial_chunk_size(true);

  test_adjust_initial_chunk_size(false);

}

#endif // ASSERT