/Users/deen/code/yugabyte-db/src/yb/util/hash_util-test.cc
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1 | | // Licensed to the Apache Software Foundation (ASF) under one |
2 | | // or more contributor license agreements. See the NOTICE file |
3 | | // distributed with this work for additional information |
4 | | // regarding copyright ownership. The ASF licenses this file |
5 | | // to you under the Apache License, Version 2.0 (the |
6 | | // "License"); you may not use this file except in compliance |
7 | | // with the License. You may obtain a copy of the License at |
8 | | // |
9 | | // http://www.apache.org/licenses/LICENSE-2.0 |
10 | | // |
11 | | // Unless required by applicable law or agreed to in writing, |
12 | | // software distributed under the License is distributed on an |
13 | | // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
14 | | // KIND, either express or implied. See the License for the |
15 | | // specific language governing permissions and limitations |
16 | | // under the License. |
17 | | // |
18 | | // The following only applies to changes made to this file as part of YugaByte development. |
19 | | // |
20 | | // Portions Copyright (c) YugaByte, Inc. |
21 | | // |
22 | | // Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
23 | | // in compliance with the License. You may obtain a copy of the License at |
24 | | // |
25 | | // http://www.apache.org/licenses/LICENSE-2.0 |
26 | | // |
27 | | // Unless required by applicable law or agreed to in writing, software distributed under the License |
28 | | // is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
29 | | // or implied. See the License for the specific language governing permissions and limitations |
30 | | // under the License. |
31 | | // |
32 | | #include <stddef.h> |
33 | | #include <stdint.h> |
34 | | #include <string.h> |
35 | | |
36 | | #include <iosfwd> |
37 | | #include <string> |
38 | | #include <type_traits> |
39 | | |
40 | | #include <gtest/gtest.h> |
41 | | |
42 | | #include "yb/gutil/hash/hash.h" |
43 | | #include "yb/gutil/integral_types.h" |
44 | | #include "yb/gutil/port.h" |
45 | | #include "yb/gutil/type_traits.h" |
46 | | #include "yb/util/hash_util.h" |
47 | | |
48 | | namespace yb { |
49 | | |
50 | | // Test Murmur2 Hash64 returns the expected values for inputs. These tests are |
51 | | // duplicated on the Java side to ensure that hash computations are stable |
52 | | // across both platforms. |
53 | 1 | TEST(HashUtilTest, TestMurmur2Hash64) { |
54 | 1 | uint64_t hash; |
55 | | |
56 | 1 | hash = HashUtil::MurmurHash2_64("ab", 2, 0); |
57 | 1 | ASSERT_EQ(7115271465109541368, hash); |
58 | | |
59 | 1 | hash = HashUtil::MurmurHash2_64("abcdefg", 7, 0); |
60 | 1 | ASSERT_EQ(2601573339036254301, hash); |
61 | | |
62 | 1 | hash = HashUtil::MurmurHash2_64("quick brown fox", 15, 42); |
63 | 1 | ASSERT_EQ(3575930248840144026, hash); |
64 | 1 | } |
65 | | |
66 | | } // namespace yb |