Josh Gao | f4a94c4 | 2017-11-13 16:16:27 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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 <vector> |
| 18 | |
| 19 | #include <gtest/gtest.h> |
| 20 | |
| 21 | #include <android-base/file.h> |
| 22 | #include <android-base/test_utils.h> |
| 23 | #include <unwindstack/Memory.h> |
| 24 | |
| 25 | namespace unwindstack { |
| 26 | |
| 27 | class MemoryOfflineTest : public ::testing::Test { |
| 28 | protected: |
| 29 | void SetUp() override { |
| 30 | for (size_t i = 0; i < 1024; ++i) { |
| 31 | data.push_back(i & 0xff); |
| 32 | } |
| 33 | |
| 34 | ASSERT_TRUE(android::base::WriteFully(temp_file.fd, &offset, sizeof(offset))); |
| 35 | ASSERT_TRUE(android::base::WriteFully(temp_file.fd, data.data(), data.size())); |
| 36 | |
| 37 | memory = std::make_unique<MemoryOffline>(); |
| 38 | ASSERT_TRUE(memory != nullptr); |
| 39 | |
| 40 | ASSERT_TRUE(memory->Init(temp_file.path, 0)); |
| 41 | } |
| 42 | |
| 43 | TemporaryFile temp_file; |
| 44 | uint64_t offset = 4096; |
| 45 | std::vector<char> data; |
| 46 | std::unique_ptr<MemoryOffline> memory; |
| 47 | }; |
| 48 | |
| 49 | TEST_F(MemoryOfflineTest, read_boundaries) { |
| 50 | char buf = '\0'; |
| 51 | ASSERT_EQ(0U, memory->Read(offset - 1, &buf, 1)); |
| 52 | ASSERT_EQ(0U, memory->Read(offset + data.size(), &buf, 1)); |
| 53 | ASSERT_EQ(1U, memory->Read(offset, &buf, 1)); |
| 54 | ASSERT_EQ(buf, data.front()); |
| 55 | ASSERT_EQ(1U, memory->Read(offset + data.size() - 1, &buf, 1)); |
| 56 | ASSERT_EQ(buf, data.back()); |
| 57 | } |
| 58 | |
| 59 | TEST_F(MemoryOfflineTest, read_values) { |
| 60 | std::vector<char> buf; |
| 61 | buf.resize(2 * data.size()); |
| 62 | ASSERT_EQ(data.size(), memory->Read(offset, buf.data(), buf.size())); |
| 63 | buf.resize(data.size()); |
| 64 | ASSERT_EQ(buf, data); |
| 65 | } |
| 66 | |
| 67 | } // namespace unwindstack |