//
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// Copyright (C) 2009 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#ifndef UPDATE_ENGINE_FAKE_FILE_WRITER_H_
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#define UPDATE_ENGINE_FAKE_FILE_WRITER_H_
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#include <vector>
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#include <base/macros.h>
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#include <brillo/secure_blob.h>
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#include "update_engine/payload_consumer/file_writer.h"
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// FakeFileWriter is an implementation of FileWriter. It will succeed
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// calls to Open(), Close(), but not do any work. All calls to Write()
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// will append the passed data to an internal vector.
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namespace chromeos_update_engine {
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class FakeFileWriter : public FileWriter {
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public:
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FakeFileWriter() : was_opened_(false), was_closed_(false) {}
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virtual int Open(const char* path, int flags, mode_t mode) {
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CHECK(!was_opened_);
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CHECK(!was_closed_);
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was_opened_ = true;
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return 0;
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}
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virtual ssize_t Write(const void* bytes, size_t count) {
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CHECK(was_opened_);
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CHECK(!was_closed_);
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const char* char_bytes = reinterpret_cast<const char*>(bytes);
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bytes_.insert(bytes_.end(), char_bytes, char_bytes + count);
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return count;
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}
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virtual int Close() {
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CHECK(was_opened_);
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CHECK(!was_closed_);
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was_closed_ = true;
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return 0;
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}
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const brillo::Blob& bytes() { return bytes_; }
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private:
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// The internal store of all bytes that have been written
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brillo::Blob bytes_;
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// These are just to ensure FileWriter methods are called properly.
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bool was_opened_;
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bool was_closed_;
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DISALLOW_COPY_AND_ASSIGN(FakeFileWriter);
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};
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} // namespace chromeos_update_engine
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#endif // UPDATE_ENGINE_FAKE_FILE_WRITER_H_
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