fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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469 lines
19 KiB
469 lines
19 KiB
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// Copyright (c) 2012 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include "table/block_based/block_based_filter_block.h"
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#include "rocksdb/filter_policy.h"
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#include "table/block_based/block_based_table_reader.h"
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#include "test_util/testharness.h"
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#include "test_util/testutil.h"
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#include "util/coding.h"
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#include "util/hash.h"
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#include "util/string_util.h"
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namespace rocksdb {
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// For testing: emit an array with one hash value per key
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class TestHashFilter : public FilterPolicy {
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public:
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const char* Name() const override { return "TestHashFilter"; }
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void CreateFilter(const Slice* keys, int n, std::string* dst) const override {
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for (int i = 0; i < n; i++) {
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uint32_t h = Hash(keys[i].data(), keys[i].size(), 1);
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PutFixed32(dst, h);
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}
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}
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bool KeyMayMatch(const Slice& key, const Slice& filter) const override {
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uint32_t h = Hash(key.data(), key.size(), 1);
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for (unsigned int i = 0; i + 4 <= filter.size(); i += 4) {
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if (h == DecodeFixed32(filter.data() + i)) {
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return true;
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}
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}
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return false;
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}
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};
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class MockBlockBasedTable : public BlockBasedTable {
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public:
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explicit MockBlockBasedTable(Rep* rep)
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: BlockBasedTable(rep, nullptr /* block_cache_tracer */) {}
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};
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class FilterBlockTest : public testing::Test {
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public:
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Options options_;
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ImmutableCFOptions ioptions_;
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EnvOptions env_options_;
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BlockBasedTableOptions table_options_;
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InternalKeyComparator icomp_;
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std::unique_ptr<BlockBasedTable> table_;
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FilterBlockTest()
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: ioptions_(options_),
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env_options_(options_),
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icomp_(options_.comparator) {
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table_options_.filter_policy.reset(new TestHashFilter);
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constexpr bool skip_filters = false;
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constexpr int level = 0;
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constexpr bool immortal_table = false;
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table_.reset(new MockBlockBasedTable(
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new BlockBasedTable::Rep(ioptions_, env_options_, table_options_,
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icomp_, skip_filters, level, immortal_table)));
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}
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};
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TEST_F(FilterBlockTest, EmptyBuilder) {
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BlockBasedFilterBlockBuilder builder(nullptr, table_options_);
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Slice slice(builder.Finish());
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ASSERT_EQ("\\x00\\x00\\x00\\x00\\x0b", EscapeString(slice));
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CachableEntry<BlockContents> block(
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new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
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true /* own_value */);
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BlockBasedFilterBlockReader reader(table_.get(), std::move(block));
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ASSERT_TRUE(reader.KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader.KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/100000,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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}
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TEST_F(FilterBlockTest, SingleChunk) {
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BlockBasedFilterBlockBuilder builder(nullptr, table_options_);
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ASSERT_EQ(0, builder.NumAdded());
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builder.StartBlock(100);
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builder.Add("foo");
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builder.Add("bar");
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builder.Add("box");
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builder.StartBlock(200);
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builder.Add("box");
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builder.StartBlock(300);
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builder.Add("hello");
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ASSERT_EQ(5, builder.NumAdded());
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Slice slice(builder.Finish());
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CachableEntry<BlockContents> block(
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new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
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true /* own_value */);
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BlockBasedFilterBlockReader reader(table_.get(), std::move(block));
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ASSERT_TRUE(reader.KeyMayMatch("foo", /*prefix_extractor=*/nullptr,
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/*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
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/*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader.KeyMayMatch("bar", /*prefix_extractor=*/nullptr,
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/*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
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/*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader.KeyMayMatch("box", /*prefix_extractor=*/nullptr,
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/*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
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/*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader.KeyMayMatch("hello", /*prefix_extractor=*/nullptr,
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/*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
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/*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader.KeyMayMatch("foo", /*prefix_extractor=*/nullptr,
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/*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
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/*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"missing", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"other", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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}
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TEST_F(FilterBlockTest, MultiChunk) {
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BlockBasedFilterBlockBuilder builder(nullptr, table_options_);
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// First filter
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builder.StartBlock(0);
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builder.Add("foo");
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builder.StartBlock(2000);
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builder.Add("bar");
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// Second filter
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builder.StartBlock(3100);
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builder.Add("box");
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// Third filter is empty
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// Last filter
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builder.StartBlock(9000);
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builder.Add("box");
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builder.Add("hello");
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Slice slice(builder.Finish());
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CachableEntry<BlockContents> block(
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new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
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true /* own_value */);
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BlockBasedFilterBlockReader reader(table_.get(), std::move(block));
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// Check first filter
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ASSERT_TRUE(reader.KeyMayMatch("foo", /*prefix_extractor=*/nullptr,
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/*block_offset=*/uint64_t{0},
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
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/*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader.KeyMayMatch("bar", /*prefix_extractor=*/nullptr,
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/*block_offset=*/2000,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
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/*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"box", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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// Check second filter
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ASSERT_TRUE(reader.KeyMayMatch("box", /*prefix_extractor=*/nullptr,
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/*block_offset=*/3100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
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/*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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// Check third filter (empty)
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ASSERT_TRUE(!reader.KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"box", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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// Check last filter
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ASSERT_TRUE(reader.KeyMayMatch("box", /*prefix_extractor=*/nullptr,
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/*block_offset=*/9000,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
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/*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader.KeyMayMatch("hello", /*prefix_extractor=*/nullptr,
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/*block_offset=*/9000,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr,
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/*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader.KeyMayMatch(
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"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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}
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// Test for block based filter block
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// use new interface in FilterPolicy to create filter builder/reader
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class BlockBasedFilterBlockTest : public testing::Test {
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public:
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Options options_;
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ImmutableCFOptions ioptions_;
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EnvOptions env_options_;
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BlockBasedTableOptions table_options_;
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InternalKeyComparator icomp_;
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std::unique_ptr<BlockBasedTable> table_;
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BlockBasedFilterBlockTest()
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: ioptions_(options_),
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env_options_(options_),
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icomp_(options_.comparator) {
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table_options_.filter_policy.reset(NewBloomFilterPolicy(10));
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constexpr bool skip_filters = false;
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constexpr int level = 0;
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constexpr bool immortal_table = false;
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table_.reset(new MockBlockBasedTable(
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new BlockBasedTable::Rep(ioptions_, env_options_, table_options_,
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icomp_, skip_filters, level, immortal_table)));
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}
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};
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TEST_F(BlockBasedFilterBlockTest, BlockBasedEmptyBuilder) {
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FilterBlockBuilder* builder =
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new BlockBasedFilterBlockBuilder(nullptr, table_options_);
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Slice slice(builder->Finish());
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ASSERT_EQ("\\x00\\x00\\x00\\x00\\x0b", EscapeString(slice));
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CachableEntry<BlockContents> block(
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new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
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true /* own_value */);
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FilterBlockReader* reader =
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new BlockBasedFilterBlockReader(table_.get(), std::move(block));
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ASSERT_TRUE(reader->KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader->KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/10000,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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delete builder;
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delete reader;
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}
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TEST_F(BlockBasedFilterBlockTest, BlockBasedSingleChunk) {
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FilterBlockBuilder* builder =
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new BlockBasedFilterBlockBuilder(nullptr, table_options_);
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builder->StartBlock(100);
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builder->Add("foo");
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builder->Add("bar");
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builder->Add("box");
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builder->StartBlock(200);
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builder->Add("box");
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builder->StartBlock(300);
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builder->Add("hello");
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Slice slice(builder->Finish());
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CachableEntry<BlockContents> block(
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new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
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true /* own_value */);
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FilterBlockReader* reader =
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new BlockBasedFilterBlockReader(table_.get(), std::move(block));
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ASSERT_TRUE(reader->KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader->KeyMayMatch(
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"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader->KeyMayMatch(
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"box", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader->KeyMayMatch(
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"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader->KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader->KeyMayMatch(
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"missing", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader->KeyMayMatch(
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"other", /*prefix_extractor=*/nullptr, /*block_offset=*/100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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delete builder;
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delete reader;
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}
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TEST_F(BlockBasedFilterBlockTest, BlockBasedMultiChunk) {
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FilterBlockBuilder* builder =
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new BlockBasedFilterBlockBuilder(nullptr, table_options_);
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// First filter
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builder->StartBlock(0);
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builder->Add("foo");
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builder->StartBlock(2000);
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builder->Add("bar");
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// Second filter
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builder->StartBlock(3100);
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builder->Add("box");
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// Third filter is empty
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// Last filter
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builder->StartBlock(9000);
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builder->Add("box");
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builder->Add("hello");
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Slice slice(builder->Finish());
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CachableEntry<BlockContents> block(
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new BlockContents(slice), nullptr /* cache */, nullptr /* cache_handle */,
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true /* own_value */);
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FilterBlockReader* reader =
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new BlockBasedFilterBlockReader(table_.get(), std::move(block));
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// Check first filter
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ASSERT_TRUE(reader->KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(reader->KeyMayMatch(
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"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/2000,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader->KeyMayMatch(
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"box", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader->KeyMayMatch(
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"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/uint64_t{0},
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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// Check second filter
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ASSERT_TRUE(reader->KeyMayMatch(
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"box", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader->KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader->KeyMayMatch(
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"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader->KeyMayMatch(
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"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/3100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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// Check third filter (empty)
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ASSERT_TRUE(!reader->KeyMayMatch(
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"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
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/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
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/*lookup_context=*/nullptr));
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ASSERT_TRUE(!reader->KeyMayMatch(
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|
"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
|
|
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
|
|
/*lookup_context=*/nullptr));
|
|
ASSERT_TRUE(!reader->KeyMayMatch(
|
|
"box", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
|
|
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
|
|
/*lookup_context=*/nullptr));
|
|
ASSERT_TRUE(!reader->KeyMayMatch(
|
|
"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/4100,
|
|
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
|
|
/*lookup_context=*/nullptr));
|
|
|
|
// Check last filter
|
|
ASSERT_TRUE(reader->KeyMayMatch(
|
|
"box", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
|
|
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
|
|
/*lookup_context=*/nullptr));
|
|
ASSERT_TRUE(reader->KeyMayMatch(
|
|
"hello", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
|
|
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
|
|
/*lookup_context=*/nullptr));
|
|
ASSERT_TRUE(!reader->KeyMayMatch(
|
|
"foo", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
|
|
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
|
|
/*lookup_context=*/nullptr));
|
|
ASSERT_TRUE(!reader->KeyMayMatch(
|
|
"bar", /*prefix_extractor=*/nullptr, /*block_offset=*/9000,
|
|
/*no_io=*/false, /*const_ikey_ptr=*/nullptr, /*get_context=*/nullptr,
|
|
/*lookup_context=*/nullptr));
|
|
|
|
delete builder;
|
|
delete reader;
|
|
}
|
|
|
|
} // namespace rocksdb
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|
|
|