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//
// Copyright (C) 2015 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.
//
#ifndef UPDATE_ENGINE_FAKE_EXTENT_WRITER_H_
#define UPDATE_ENGINE_FAKE_EXTENT_WRITER_H_
#include <memory>
#include <vector>
#include <brillo/secure_blob.h>
#include "update_engine/extent_writer.h"
namespace chromeos_update_engine {
// FakeExtentWriter is a concrete ExtentWriter subclass that keeps track of all
// the written data, useful for testing.
class FakeExtentWriter : public ExtentWriter {
public:
FakeExtentWriter() = default;
~FakeExtentWriter() override = default;
// ExtentWriter overrides.
bool Init(FileDescriptorPtr /* fd */,
const std::vector<Extent>& /* extents */,
uint32_t /* block_size */) override {
init_called_ = true;
return true;
};
bool Write(const void* bytes, size_t count) override {
if (!init_called_ || end_called_)
return false;
written_data_.insert(written_data_.end(),
reinterpret_cast<const uint8_t*>(bytes),
reinterpret_cast<const uint8_t*>(bytes) + count);
return true;
}
bool EndImpl() override {
end_called_ = true;
return true;
}
// Fake methods.
bool InitCalled() { return init_called_; }
bool EndCalled() { return end_called_; }
brillo::Blob WrittenData() { return written_data_; }
private:
bool init_called_{false};
bool end_called_{false};
brillo::Blob written_data_;
DISALLOW_COPY_AND_ASSIGN(FakeExtentWriter);
};
} // namespace chromeos_update_engine
#endif // UPDATE_ENGINE_FAKE_EXTENT_WRITER_H_