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/**
* Copyright (C) 2012 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
/** Unit tests for RecordId. */
#include "mongo/db/record_id.h"
#include "mongo/unittest/unittest.h"
namespace mongo {
namespace {
TEST(RecordId, HashEqual) {
RecordId locA(1, 2);
RecordId locB;
locB = locA;
ASSERT_EQUALS(locA, locB);
RecordId::Hasher hasher;
ASSERT_EQUALS(hasher(locA), hasher(locB));
}
TEST(RecordId, HashNotEqual) {
RecordId original(1, 2);
RecordId diffFile(10, 2);
RecordId diffOfs(1, 20);
RecordId diffBoth(10, 20);
RecordId reversed(2, 1);
ASSERT_NOT_EQUALS(original, diffFile);
ASSERT_NOT_EQUALS(original, diffOfs);
ASSERT_NOT_EQUALS(original, diffBoth);
ASSERT_NOT_EQUALS(original, reversed);
// Unequal DiskLocs need not produce unequal hashes. But unequal hashes are likely, and
// assumed here for sanity checking of the custom hash implementation.
RecordId::Hasher hasher;
ASSERT_NOT_EQUALS(hasher(original), hasher(diffFile));
ASSERT_NOT_EQUALS(hasher(original), hasher(diffOfs));
ASSERT_NOT_EQUALS(hasher(original), hasher(diffBoth));
ASSERT_NOT_EQUALS(hasher(original), hasher(reversed));
}
} // namespace
} // namespace mongo
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