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RocksDB for Erlang

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rocksdb deps rocksdb table block_based mock_block_based_table.h
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deps/rocksdb/table/block_based/mock_block_based_table.h 

//  Copyright (c) 2019-present, Facebook, Inc.  All rights reserved.

//  This source code is licensed under both the GPLv2 (found in the

//  COPYING file in the root directory) and Apache 2.0 License

//  (found in the LICENSE.Apache file in the root directory).

#pragma once



#include <memory>



#include "rocksdb/filter_policy.h"

#include "table/block_based/block_based_table_reader.h"

#include "table/block_based/filter_policy_internal.h"



namespace ROCKSDB_NAMESPACE {

namespace mock {



class MockBlockBasedTable : public BlockBasedTable {

 public:

  explicit MockBlockBasedTable(Rep* rep)

      : BlockBasedTable(rep, nullptr /* block_cache_tracer */) {}

};



class MockBlockBasedTableTester {

  static constexpr int kMockLevel = 0;



 public:

  Options options_;

  ImmutableOptions ioptions_;

  EnvOptions env_options_;

  BlockBasedTableOptions table_options_;

  InternalKeyComparator icomp_;

  std::unique_ptr<BlockBasedTable> table_;



  explicit MockBlockBasedTableTester(const FilterPolicy* filter_policy)

      : MockBlockBasedTableTester(

            std::shared_ptr<const FilterPolicy>(filter_policy)){};



  explicit MockBlockBasedTableTester(

      std::shared_ptr<const FilterPolicy> filter_policy)

      : ioptions_(options_),

        env_options_(options_),

        icomp_(options_.comparator) {

    table_options_.filter_policy = std::move(filter_policy);



    constexpr bool skip_filters = false;

    constexpr bool immortal_table = false;

    table_.reset(new MockBlockBasedTable(new BlockBasedTable::Rep(

        ioptions_, env_options_, table_options_, icomp_, skip_filters,

        12345 /*file_size*/, kMockLevel, immortal_table)));

  }



  FilterBitsBuilder* GetBuilder() const {

    FilterBuildingContext context(table_options_);

    context.column_family_name = "mock_cf";

    context.compaction_style = ioptions_.compaction_style;

    context.level_at_creation = kMockLevel;

    context.info_log = ioptions_.logger;

    return BloomFilterPolicy::GetBuilderFromContext(context);

  }

};



}  // namespace mock

}  // namespace ROCKSDB_NAMESPACE