1 /*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "dedupe_set.h"
18
19 #include <algorithm>
20 #include <cstdio>
21 #include <vector>
22
23 #include "base/array_ref.h"
24 #include "dedupe_set-inl.h"
25 #include "gtest/gtest.h"
26 #include "thread-current-inl.h"
27
28 namespace art {
29
30 class DedupeSetTestHashFunc {
31 public:
operator ()(const ArrayRef<const uint8_t> & array) const32 size_t operator()(const ArrayRef<const uint8_t>& array) const {
33 size_t hash = 0;
34 for (uint8_t c : array) {
35 hash += c;
36 hash += hash << 10;
37 hash += hash >> 6;
38 }
39 return hash;
40 }
41 };
42
43 class DedupeSetTestAlloc {
44 public:
Copy(const ArrayRef<const uint8_t> & src)45 const std::vector<uint8_t>* Copy(const ArrayRef<const uint8_t>& src) {
46 return new std::vector<uint8_t>(src.begin(), src.end());
47 }
48
Destroy(const std::vector<uint8_t> * key)49 void Destroy(const std::vector<uint8_t>* key) {
50 delete key;
51 }
52 };
53
TEST(DedupeSetTest,Test)54 TEST(DedupeSetTest, Test) {
55 Thread* self = Thread::Current();
56 DedupeSetTestAlloc alloc;
57 DedupeSet<ArrayRef<const uint8_t>,
58 std::vector<uint8_t>,
59 DedupeSetTestAlloc,
60 size_t,
61 DedupeSetTestHashFunc> deduplicator("test", alloc);
62 const std::vector<uint8_t>* array1;
63 {
64 uint8_t raw_test1[] = { 10u, 20u, 30u, 45u };
65 ArrayRef<const uint8_t> test1(raw_test1);
66 array1 = deduplicator.Add(self, test1);
67 ASSERT_NE(array1, nullptr);
68 ASSERT_TRUE(std::equal(test1.begin(), test1.end(), array1->begin()));
69 }
70
71 const std::vector<uint8_t>* array2;
72 {
73 uint8_t raw_test2[] = { 10u, 20u, 30u, 45u };
74 ArrayRef<const uint8_t> test2(raw_test2);
75 array2 = deduplicator.Add(self, test2);
76 ASSERT_EQ(array2, array1);
77 ASSERT_TRUE(std::equal(test2.begin(), test2.end(), array2->begin()));
78 }
79
80 const std::vector<uint8_t>* array3;
81 {
82 uint8_t raw_test3[] = { 10u, 22u, 30u, 47u };
83 ArrayRef<const uint8_t> test3(raw_test3);
84 array3 = deduplicator.Add(self, test3);
85 ASSERT_NE(array3, nullptr);
86 ASSERT_NE(array3, array1);
87 ASSERT_TRUE(std::equal(test3.begin(), test3.end(), array3->begin()));
88 }
89 }
90
91 } // namespace art
92