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/*
* Copyright (C) 2018 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 <vector>
#include <gtest/gtest.h>
#include <unwindstack/Memory.h>
#include "MemoryFake.h"
namespace unwindstack {
class MemoryRangesTest : public ::testing::Test {
protected:
void SetUp() override {
MemoryFake* memory = new MemoryFake;
process_memory_.reset(memory);
memory->SetMemoryBlock(1000, 5000, 0x15);
memory->SetMemoryBlock(6000, 12000, 0x26);
memory->SetMemoryBlock(14000, 20000, 0x37);
memory->SetMemoryBlock(20000, 22000, 0x48);
ranges_.reset(new MemoryRanges);
ranges_->Insert(new MemoryRange(process_memory_, 15000, 100, 4000));
ranges_->Insert(new MemoryRange(process_memory_, 10000, 2000, 2000));
ranges_->Insert(new MemoryRange(process_memory_, 3000, 1000, 0));
ranges_->Insert(new MemoryRange(process_memory_, 19000, 1000, 6000));
ranges_->Insert(new MemoryRange(process_memory_, 20000, 1000, 7000));
}
std::shared_ptr<Memory> process_memory_;
std::unique_ptr<MemoryRanges> ranges_;
};
TEST_F(MemoryRangesTest, read) {
std::vector<uint8_t> dst(2000);
size_t bytes = ranges_->Read(0, dst.data(), dst.size());
ASSERT_EQ(1000UL, bytes);
for (size_t i = 0; i < bytes; i++) {
ASSERT_EQ(0x15U, dst[i]) << "Failed at byte " << i;
}
bytes = ranges_->Read(2000, dst.data(), dst.size());
ASSERT_EQ(2000UL, bytes);
for (size_t i = 0; i < bytes; i++) {
ASSERT_EQ(0x26U, dst[i]) << "Failed at byte " << i;
}
bytes = ranges_->Read(4000, dst.data(), dst.size());
ASSERT_EQ(100UL, bytes);
for (size_t i = 0; i < bytes; i++) {
ASSERT_EQ(0x37U, dst[i]) << "Failed at byte " << i;
}
}
TEST_F(MemoryRangesTest, read_fail) {
std::vector<uint8_t> dst(4096);
ASSERT_EQ(0UL, ranges_->Read(1000, dst.data(), dst.size()));
ASSERT_EQ(0UL, ranges_->Read(5000, dst.data(), dst.size()));
ASSERT_EQ(0UL, ranges_->Read(8000, dst.data(), dst.size()));
}
TEST_F(MemoryRangesTest, read_across_ranges) {
// The MemoryRanges object does not support reading across a range,
// so this will only read in the first range.
std::vector<uint8_t> dst(4096);
size_t bytes = ranges_->Read(6000, dst.data(), dst.size());
ASSERT_EQ(1000UL, bytes);
for (size_t i = 0; i < bytes; i++) {
ASSERT_EQ(0x37U, dst[i]) << "Failed at byte " << i;
}
}
} // namespace unwindstack
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