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// Copyright 2017 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef _BSDIFF_FAKE_PATCH_WRITER_H_
#define _BSDIFF_FAKE_PATCH_WRITER_H_
#include <gtest/gtest.h>
#include <vector>
#include "bsdiff/patch_writer_interface.h"
namespace bsdiff {
// A fake PatchWriterInterface derived class with easy access to the data passed
// to it.
class FakePatchWriter : public PatchWriterInterface {
public:
FakePatchWriter() = default;
~FakePatchWriter() override = default;
// PatchWriterInterface overrides.
bool Init(size_t new_size) override {
EXPECT_FALSE(initialized_);
initialized_ = true;
new_size_ = new_size;
return true;
}
bool AddControlEntry(const ControlEntry& entry) override {
EXPECT_TRUE(initialized_);
EXPECT_FALSE(closed_);
entries_.push_back(entry);
return true;
}
bool WriteDiffStream(const uint8_t* data, size_t size) override {
diff_stream_.insert(diff_stream_.end(), data, data + size);
return true;
}
bool WriteExtraStream(const uint8_t* data, size_t size) override {
extra_stream_.insert(extra_stream_.end(), data, data + size);
return true;
}
bool Close() override {
EXPECT_FALSE(closed_) << "Close() already called";
closed_ = true;
return true;
}
// Fake getter methods.
const std::vector<ControlEntry>& entries() const { return entries_; }
const std::vector<uint8_t>& diff_stream() const { return diff_stream_; }
const std::vector<uint8_t>& extra_stream() const { return extra_stream_; }
size_t new_size() const { return new_size_; }
private:
// The list of ControlEntry passed to this class.
std::vector<ControlEntry> entries_;
std::vector<uint8_t> diff_stream_;
std::vector<uint8_t> extra_stream_;
// The size of the new file for the patch we are writing.
size_t new_size_{0};
// Whether this class was initialized.
bool initialized_{false};
// Whether the patch was closed.
bool closed_{false};
};
} // namespace bsdiff
#endif // _BSDIFF_FAKE_PATCH_WRITER_H_
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