1 /*
2 * Copyright (C) 2015 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 "memory_region.h"
18
19 #include "gtest/gtest.h"
20
21 namespace art {
22
TEST(MemoryRegion,LoadUnaligned)23 TEST(MemoryRegion, LoadUnaligned) {
24 const size_t n = 8;
25 uint8_t data[n] = { 0, 1, 2, 3, 4, 5, 6, 7 };
26 MemoryRegion region(&data, n);
27
28 ASSERT_EQ(0, region.LoadUnaligned<char>(0));
29 ASSERT_EQ(1u
30 + (2u << kBitsPerByte)
31 + (3u << 2 * kBitsPerByte)
32 + (4u << 3 * kBitsPerByte),
33 region.LoadUnaligned<uint32_t>(1));
34 ASSERT_EQ(5 + (6 << kBitsPerByte), region.LoadUnaligned<int16_t>(5));
35 ASSERT_EQ(7u, region.LoadUnaligned<unsigned char>(7));
36 }
37
TEST(MemoryRegion,StoreUnaligned)38 TEST(MemoryRegion, StoreUnaligned) {
39 const size_t n = 8;
40 uint8_t data[n] = { 0, 0, 0, 0, 0, 0, 0, 0 };
41 MemoryRegion region(&data, n);
42
43 region.StoreUnaligned<unsigned char>(0u, 7);
44 region.StoreUnaligned<int16_t>(1, 6 + (5 << kBitsPerByte));
45 region.StoreUnaligned<uint32_t>(3,
46 4u
47 + (3u << kBitsPerByte)
48 + (2u << 2 * kBitsPerByte)
49 + (1u << 3 * kBitsPerByte));
50 region.StoreUnaligned<char>(7, 0);
51
52 uint8_t expected[n] = { 7, 6, 5, 4, 3, 2, 1, 0 };
53 for (size_t i = 0; i < n; ++i) {
54 ASSERT_EQ(expected[i], data[i]);
55 }
56 }
57
58 } // namespace art
59