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/*
* Copyright (C) 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <vector>
#include <gtest/gtest.h>
#include <android-base/file.h>
#include <unwindstack/Memory.h>
namespace unwindstack {
class MemoryOfflineTest : public ::testing::Test {
protected:
void SetUp() override {
for (size_t i = 0; i < 1024; ++i) {
data.push_back(i & 0xff);
}
ASSERT_TRUE(android::base::WriteFully(temp_file.fd, &offset, sizeof(offset)));
ASSERT_TRUE(android::base::WriteFully(temp_file.fd, data.data(), data.size()));
memory = std::make_unique<MemoryOffline>();
ASSERT_TRUE(memory != nullptr);
ASSERT_TRUE(memory->Init(temp_file.path, 0));
}
TemporaryFile temp_file;
uint64_t offset = 4096;
std::vector<char> data;
std::unique_ptr<MemoryOffline> memory;
};
TEST_F(MemoryOfflineTest, read_boundaries) {
char buf = '\0';
ASSERT_EQ(0U, memory->Read(offset - 1, &buf, 1));
ASSERT_EQ(0U, memory->Read(offset + data.size(), &buf, 1));
ASSERT_EQ(1U, memory->Read(offset, &buf, 1));
ASSERT_EQ(buf, data.front());
ASSERT_EQ(1U, memory->Read(offset + data.size() - 1, &buf, 1));
ASSERT_EQ(buf, data.back());
}
TEST_F(MemoryOfflineTest, read_values) {
std::vector<char> buf;
buf.resize(2 * data.size());
ASSERT_EQ(data.size(), memory->Read(offset, buf.data(), buf.size()));
buf.resize(data.size());
ASSERT_EQ(buf, data);
}
} // namespace unwindstack
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