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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 <stdint.h>
#include <string.h>
#include <vector>
#include <gtest/gtest.h>
#include <unwindstack/Memory.h>
namespace unwindstack {
TEST(MemoryLocalTest, read) {
std::vector<uint8_t> src(1024);
memset(src.data(), 0x4c, 1024);
MemoryLocal local;
std::vector<uint8_t> dst(1024);
ASSERT_TRUE(local.Read(reinterpret_cast<uint64_t>(src.data()), dst.data(), 1024));
ASSERT_EQ(0, memcmp(src.data(), dst.data(), 1024));
for (size_t i = 0; i < 1024; i++) {
ASSERT_EQ(0x4cU, dst[i]);
}
memset(src.data(), 0x23, 512);
ASSERT_TRUE(local.Read(reinterpret_cast<uint64_t>(src.data()), dst.data(), 1024));
ASSERT_EQ(0, memcmp(src.data(), dst.data(), 1024));
for (size_t i = 0; i < 512; i++) {
ASSERT_EQ(0x23U, dst[i]);
}
for (size_t i = 512; i < 1024; i++) {
ASSERT_EQ(0x4cU, dst[i]);
}
}
TEST(MemoryLocalTest, read_illegal) {
MemoryLocal local;
std::vector<uint8_t> dst(100);
ASSERT_FALSE(local.Read(0, dst.data(), 1));
ASSERT_FALSE(local.Read(0, dst.data(), 100));
}
TEST(MemoryLocalTest, read_overflow) {
MemoryLocal local;
// On 32 bit this test doesn't necessarily cause an overflow. The 64 bit
// version will always go through the overflow check.
std::vector<uint8_t> dst(100);
uint64_t value;
ASSERT_FALSE(local.Read(reinterpret_cast<uint64_t>(&value), dst.data(), SIZE_MAX));
}
} // namespace unwindstack
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