1
2 /**
3 * Copyright (C) 2018-present MongoDB, Inc.
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the Server Side Public License, version 1,
7 * as published by MongoDB, Inc.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * Server Side Public License for more details.
13 *
14 * You should have received a copy of the Server Side Public License
15 * along with this program. If not, see
16 * <http://www.mongodb.com/licensing/server-side-public-license>.
17 *
18 * As a special exception, the copyright holders give permission to link the
19 * code of portions of this program with the OpenSSL library under certain
20 * conditions as described in each individual source file and distribute
21 * linked combinations including the program with the OpenSSL library. You
22 * must comply with the Server Side Public License in all respects for
23 * all of the code used other than as permitted herein. If you modify file(s)
24 * with this exception, you may extend this exception to your version of the
25 * file(s), but you are not obligated to do so. If you do not wish to do so,
26 * delete this exception statement from your version. If you delete this
27 * exception statement from all source files in the program, then also delete
28 * it in the license file.
29 */
30
31 /** Unit tests for RecordId. */
32
33 #include "mongo/db/record_id.h"
34
35 #include "mongo/unittest/unittest.h"
36
37 namespace mongo {
38 namespace {
39
TEST(RecordId,HashEqual)40 TEST(RecordId, HashEqual) {
41 RecordId locA(1, 2);
42 RecordId locB;
43 locB = locA;
44 ASSERT_EQUALS(locA, locB);
45 RecordId::Hasher hasher;
46 ASSERT_EQUALS(hasher(locA), hasher(locB));
47 }
48
TEST(RecordId,HashNotEqual)49 TEST(RecordId, HashNotEqual) {
50 RecordId original(1, 2);
51 RecordId diffFile(10, 2);
52 RecordId diffOfs(1, 20);
53 RecordId diffBoth(10, 20);
54 RecordId reversed(2, 1);
55 ASSERT_NOT_EQUALS(original, diffFile);
56 ASSERT_NOT_EQUALS(original, diffOfs);
57 ASSERT_NOT_EQUALS(original, diffBoth);
58 ASSERT_NOT_EQUALS(original, reversed);
59
60 // Unequal DiskLocs need not produce unequal hashes. But unequal hashes are likely, and
61 // assumed here for sanity checking of the custom hash implementation.
62 RecordId::Hasher hasher;
63 ASSERT_NOT_EQUALS(hasher(original), hasher(diffFile));
64 ASSERT_NOT_EQUALS(hasher(original), hasher(diffOfs));
65 ASSERT_NOT_EQUALS(hasher(original), hasher(diffBoth));
66 ASSERT_NOT_EQUALS(hasher(original), hasher(reversed));
67 }
68
69 } // namespace
70 } // namespace mongo
71