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rocksdb/db/db_iter_test.cc

2858 lines
96 KiB

// Copyright (c) 2011-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).
#include <string>
#include <vector>
#include <algorithm>
#include <utility>
#include "db/db_iter.h"
#include "db/dbformat.h"
#include "rocksdb/comparator.h"
#include "rocksdb/options.h"
#include "rocksdb/perf_context.h"
#include "rocksdb/slice.h"
#include "rocksdb/statistics.h"
#include "table/iterator_wrapper.h"
#include "table/merging_iterator.h"
#include "util/string_util.h"
#include "util/sync_point.h"
#include "util/testharness.h"
#include "utilities/merge_operators.h"
namespace rocksdb {
static uint64_t TestGetTickerCount(const Options& options,
Tickers ticker_type) {
return options.statistics->getTickerCount(ticker_type);
}
class TestIterator : public InternalIterator {
public:
explicit TestIterator(const Comparator* comparator)
: initialized_(false),
valid_(false),
sequence_number_(0),
iter_(0),
cmp(comparator) {}
Support for SingleDelete() Summary: This patch fixes #7460559. It introduces SingleDelete as a new database operation. This operation can be used to delete keys that were never overwritten (no put following another put of the same key). If an overwritten key is single deleted the behavior is undefined. Single deletion of a non-existent key has no effect but multiple consecutive single deletions are not allowed (see limitations). In contrast to the conventional Delete() operation, the deletion entry is removed along with the value when the two are lined up in a compaction. Note: The semantics are similar to @igor's prototype that allowed to have this behavior on the granularity of a column family ( https://reviews.facebook.net/D42093 ). This new patch, however, is more aggressive when it comes to removing tombstones: It removes the SingleDelete together with the value whenever there is no snapshot between them while the older patch only did this when the sequence number of the deletion was older than the earliest snapshot. Most of the complex additions are in the Compaction Iterator, all other changes should be relatively straightforward. The patch also includes basic support for single deletions in db_stress and db_bench. Limitations: - Not compatible with cuckoo hash tables - Single deletions cannot be used in combination with merges and normal deletions on the same key (other keys are not affected by this) - Consecutive single deletions are currently not allowed (and older version of this patch supported this so it could be resurrected if needed) Test Plan: make all check Reviewers: yhchiang, sdong, rven, anthony, yoshinorim, igor Reviewed By: igor Subscribers: maykov, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D43179
9 years ago
void AddPut(std::string argkey, std::string argvalue) {
Add(argkey, kTypeValue, argvalue);
}
void AddDeletion(std::string argkey) {
Add(argkey, kTypeDeletion, std::string());
}
Support for SingleDelete() Summary: This patch fixes #7460559. It introduces SingleDelete as a new database operation. This operation can be used to delete keys that were never overwritten (no put following another put of the same key). If an overwritten key is single deleted the behavior is undefined. Single deletion of a non-existent key has no effect but multiple consecutive single deletions are not allowed (see limitations). In contrast to the conventional Delete() operation, the deletion entry is removed along with the value when the two are lined up in a compaction. Note: The semantics are similar to @igor's prototype that allowed to have this behavior on the granularity of a column family ( https://reviews.facebook.net/D42093 ). This new patch, however, is more aggressive when it comes to removing tombstones: It removes the SingleDelete together with the value whenever there is no snapshot between them while the older patch only did this when the sequence number of the deletion was older than the earliest snapshot. Most of the complex additions are in the Compaction Iterator, all other changes should be relatively straightforward. The patch also includes basic support for single deletions in db_stress and db_bench. Limitations: - Not compatible with cuckoo hash tables - Single deletions cannot be used in combination with merges and normal deletions on the same key (other keys are not affected by this) - Consecutive single deletions are currently not allowed (and older version of this patch supported this so it could be resurrected if needed) Test Plan: make all check Reviewers: yhchiang, sdong, rven, anthony, yoshinorim, igor Reviewed By: igor Subscribers: maykov, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D43179
9 years ago
void AddSingleDeletion(std::string argkey) {
Add(argkey, kTypeSingleDeletion, std::string());
}
void AddMerge(std::string argkey, std::string argvalue) {
Add(argkey, kTypeMerge, argvalue);
}
void Add(std::string argkey, ValueType type, std::string argvalue) {
Add(argkey, type, argvalue, sequence_number_++);
}
void Add(std::string argkey, ValueType type, std::string argvalue,
size_t seq_num, bool update_iter = false) {
valid_ = true;
ParsedInternalKey internal_key(argkey, seq_num, type);
data_.push_back(
std::pair<std::string, std::string>(std::string(), argvalue));
AppendInternalKey(&data_.back().first, internal_key);
if (update_iter && valid_ && cmp.Compare(data_.back().first, key()) < 0) {
// insert a key smaller than current key
Finish();
// data_[iter_] is not anymore the current element of the iterator.
// Increment it to reposition it to the right position.
iter_++;
}
}
// should be called before operations with iterator
void Finish() {
initialized_ = true;
std::sort(data_.begin(), data_.end(),
[this](std::pair<std::string, std::string> a,
std::pair<std::string, std::string> b) {
return (cmp.Compare(a.first, b.first) < 0);
});
}
virtual bool Valid() const override {
assert(initialized_);
return valid_;
}
virtual void SeekToFirst() override {
assert(initialized_);
valid_ = (data_.size() > 0);
iter_ = 0;
}
virtual void SeekToLast() override {
assert(initialized_);
valid_ = (data_.size() > 0);
iter_ = data_.size() - 1;
}
virtual void Seek(const Slice& target) override {
assert(initialized_);
SeekToFirst();
if (!valid_) {
return;
}
while (iter_ < data_.size() &&
(cmp.Compare(data_[iter_].first, target) < 0)) {
++iter_;
}
if (iter_ == data_.size()) {
valid_ = false;
}
}
virtual void SeekForPrev(const Slice& target) override {
assert(initialized_);
SeekForPrevImpl(target, &cmp);
}
virtual void Next() override {
assert(initialized_);
if (data_.empty() || (iter_ == data_.size() - 1)) {
valid_ = false;
} else {
++iter_;
}
}
virtual void Prev() override {
assert(initialized_);
if (iter_ == 0) {
valid_ = false;
} else {
--iter_;
}
}
virtual Slice key() const override {
assert(initialized_);
return data_[iter_].first;
}
virtual Slice value() const override {
assert(initialized_);
return data_[iter_].second;
}
virtual Status status() const override {
assert(initialized_);
return Status::OK();
}
Introduce FullMergeV2 (eliminate memcpy from merge operators) Summary: This diff update the code to pin the merge operator operands while the merge operation is done, so that we can eliminate the memcpy cost, to do that we need a new public API for FullMerge that replace the std::deque<std::string> with std::vector<Slice> This diff is stacked on top of D56493 and D56511 In this diff we - Update FullMergeV2 arguments to be encapsulated in MergeOperationInput and MergeOperationOutput which will make it easier to add new arguments in the future - Replace std::deque<std::string> with std::vector<Slice> to pass operands - Replace MergeContext std::deque with std::vector (based on a simple benchmark I ran https://gist.github.com/IslamAbdelRahman/78fc86c9ab9f52b1df791e58943fb187) - Allow FullMergeV2 output to be an existing operand ``` [Everything in Memtable | 10K operands | 10 KB each | 1 operand per key] DEBUG_LEVEL=0 make db_bench -j64 && ./db_bench --benchmarks="mergerandom,readseq,readseq,readseq,readseq,readseq" --merge_operator="max" --merge_keys=10000 --num=10000 --disable_auto_compactions --value_size=10240 --write_buffer_size=1000000000 [FullMergeV2] readseq : 0.607 micros/op 1648235 ops/sec; 16121.2 MB/s readseq : 0.478 micros/op 2091546 ops/sec; 20457.2 MB/s readseq : 0.252 micros/op 3972081 ops/sec; 38850.5 MB/s readseq : 0.237 micros/op 4218328 ops/sec; 41259.0 MB/s readseq : 0.247 micros/op 4043927 ops/sec; 39553.2 MB/s [master] readseq : 3.935 micros/op 254140 ops/sec; 2485.7 MB/s readseq : 3.722 micros/op 268657 ops/sec; 2627.7 MB/s readseq : 3.149 micros/op 317605 ops/sec; 3106.5 MB/s readseq : 3.125 micros/op 320024 ops/sec; 3130.1 MB/s readseq : 4.075 micros/op 245374 ops/sec; 2400.0 MB/s ``` ``` [Everything in Memtable | 10K operands | 10 KB each | 10 operand per key] DEBUG_LEVEL=0 make db_bench -j64 && ./db_bench --benchmarks="mergerandom,readseq,readseq,readseq,readseq,readseq" --merge_operator="max" --merge_keys=1000 --num=10000 --disable_auto_compactions --value_size=10240 --write_buffer_size=1000000000 [FullMergeV2] readseq : 3.472 micros/op 288018 ops/sec; 2817.1 MB/s readseq : 2.304 micros/op 434027 ops/sec; 4245.2 MB/s readseq : 1.163 micros/op 859845 ops/sec; 8410.0 MB/s readseq : 1.192 micros/op 838926 ops/sec; 8205.4 MB/s readseq : 1.250 micros/op 800000 ops/sec; 7824.7 MB/s [master] readseq : 24.025 micros/op 41623 ops/sec; 407.1 MB/s readseq : 18.489 micros/op 54086 ops/sec; 529.0 MB/s readseq : 18.693 micros/op 53495 ops/sec; 523.2 MB/s readseq : 23.621 micros/op 42335 ops/sec; 414.1 MB/s readseq : 18.775 micros/op 53262 ops/sec; 521.0 MB/s ``` ``` [Everything in Block cache | 10K operands | 10 KB each | 1 operand per key] [FullMergeV2] $ DEBUG_LEVEL=0 make db_bench -j64 && ./db_bench --benchmarks="readseq,readseq,readseq,readseq,readseq" --merge_operator="max" --num=100000 --db="/dev/shm/merge-random-10K-10KB" --cache_size=1000000000 --use_existing_db --disable_auto_compactions readseq : 14.741 micros/op 67837 ops/sec; 663.5 MB/s readseq : 1.029 micros/op 971446 ops/sec; 9501.6 MB/s readseq : 0.974 micros/op 1026229 ops/sec; 10037.4 MB/s readseq : 0.965 micros/op 1036080 ops/sec; 10133.8 MB/s readseq : 0.943 micros/op 1060657 ops/sec; 10374.2 MB/s [master] readseq : 16.735 micros/op 59755 ops/sec; 584.5 MB/s readseq : 3.029 micros/op 330151 ops/sec; 3229.2 MB/s readseq : 3.136 micros/op 318883 ops/sec; 3119.0 MB/s readseq : 3.065 micros/op 326245 ops/sec; 3191.0 MB/s readseq : 3.014 micros/op 331813 ops/sec; 3245.4 MB/s ``` ``` [Everything in Block cache | 10K operands | 10 KB each | 10 operand per key] DEBUG_LEVEL=0 make db_bench -j64 && ./db_bench --benchmarks="readseq,readseq,readseq,readseq,readseq" --merge_operator="max" --num=100000 --db="/dev/shm/merge-random-10-operands-10K-10KB" --cache_size=1000000000 --use_existing_db --disable_auto_compactions [FullMergeV2] readseq : 24.325 micros/op 41109 ops/sec; 402.1 MB/s readseq : 1.470 micros/op 680272 ops/sec; 6653.7 MB/s readseq : 1.231 micros/op 812347 ops/sec; 7945.5 MB/s readseq : 1.091 micros/op 916590 ops/sec; 8965.1 MB/s readseq : 1.109 micros/op 901713 ops/sec; 8819.6 MB/s [master] readseq : 27.257 micros/op 36687 ops/sec; 358.8 MB/s readseq : 4.443 micros/op 225073 ops/sec; 2201.4 MB/s readseq : 5.830 micros/op 171526 ops/sec; 1677.7 MB/s readseq : 4.173 micros/op 239635 ops/sec; 2343.8 MB/s readseq : 4.150 micros/op 240963 ops/sec; 2356.8 MB/s ``` Test Plan: COMPILE_WITH_ASAN=1 make check -j64 Reviewers: yhchiang, andrewkr, sdong Reviewed By: sdong Subscribers: lovro, andrewkr, dhruba Differential Revision: https://reviews.facebook.net/D57075
8 years ago
virtual bool IsKeyPinned() const override { return true; }
virtual bool IsValuePinned() const override { return true; }
private:
bool initialized_;
bool valid_;
size_t sequence_number_;
size_t iter_;
InternalKeyComparator cmp;
std::vector<std::pair<std::string, std::string>> data_;
};
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
class DBIteratorTest : public testing::Test {
public:
Env* env_;
DBIteratorTest() : env_(Env::Default()) {}
};
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIteratorPrevNext) {
Options options;
ImmutableCFOptions cf_options = ImmutableCFOptions(options);
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddDeletion("a");
internal_iter->AddDeletion("a");
internal_iter->AddDeletion("a");
internal_iter->AddDeletion("a");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->Finish();
ReadOptions ro;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "val_b");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "val_b");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
}
// Test to check the SeekToLast() with iterate_upper_bound not set
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("c", "val_c");
internal_iter->Finish();
ReadOptions ro;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
}
// Test to check the SeekToLast() with iterate_upper_bound set
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("c", "val_c");
internal_iter->AddPut("d", "val_d");
internal_iter->AddPut("e", "val_e");
internal_iter->AddPut("f", "val_f");
internal_iter->Finish();
Slice prefix("d");
ReadOptions ro;
ro.iterate_upper_bound = &prefix;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
}
// Test to check the SeekToLast() iterate_upper_bound set to a key that
// is not Put yet
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("c", "val_c");
internal_iter->AddPut("d", "val_d");
internal_iter->Finish();
Slice prefix("z");
ReadOptions ro;
ro.iterate_upper_bound = &prefix;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "d");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "d");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
}
// Test to check the SeekToLast() with iterate_upper_bound set to the
// first key
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("b", "val_b");
internal_iter->Finish();
Slice prefix("a");
ReadOptions ro;
ro.iterate_upper_bound = &prefix;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(!db_iter->Valid());
}
// Test case to check SeekToLast with iterate_upper_bound set
// (same key put may times - SeekToLast should start with the
// maximum sequence id of the upper bound)
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("c", "val_c");
internal_iter->AddPut("c", "val_c");
internal_iter->AddPut("c", "val_c");
internal_iter->AddPut("c", "val_c");
internal_iter->AddPut("c", "val_c");
internal_iter->AddPut("c", "val_c");
internal_iter->AddPut("c", "val_c");
internal_iter->Finish();
Slice prefix("c");
ReadOptions ro;
ro.iterate_upper_bound = &prefix;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 7,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
SetPerfLevel(kEnableCount);
ASSERT_TRUE(GetPerfLevel() == kEnableCount);
get_perf_context()->Reset();
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(static_cast<int>(get_perf_context()->internal_key_skipped_count), 7);
ASSERT_EQ(db_iter->key().ToString(), "b");
SetPerfLevel(kDisable);
}
// Test to check the SeekToLast() with the iterate_upper_bound set
// (Checking the value of the key which has sequence ids greater than
// and less that the iterator's sequence id)
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a1");
internal_iter->AddPut("a", "val_a2");
internal_iter->AddPut("b", "val_b1");
internal_iter->AddPut("c", "val_c1");
internal_iter->AddPut("c", "val_c2");
internal_iter->AddPut("c", "val_c3");
internal_iter->AddPut("b", "val_b2");
internal_iter->AddPut("d", "val_d1");
internal_iter->Finish();
Slice prefix("c");
ReadOptions ro;
ro.iterate_upper_bound = &prefix;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 4,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "val_b1");
}
// Test to check the SeekToLast() with the iterate_upper_bound set to the
// key that is deleted
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddDeletion("a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("c", "val_c");
internal_iter->Finish();
Slice prefix("a");
ReadOptions ro;
ro.iterate_upper_bound = &prefix;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(!db_iter->Valid());
}
// Test to check the SeekToLast() with the iterate_upper_bound set
// (Deletion cases)
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddDeletion("b");
internal_iter->AddPut("c", "val_c");
internal_iter->Finish();
Slice prefix("c");
ReadOptions ro;
ro.iterate_upper_bound = &prefix;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
}
// Test to check the SeekToLast() with iterate_upper_bound set
// (Deletion cases - Lot of internal keys after the upper_bound
// is deleted)
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddDeletion("c");
internal_iter->AddDeletion("d");
internal_iter->AddDeletion("e");
internal_iter->AddDeletion("f");
internal_iter->AddDeletion("g");
internal_iter->AddDeletion("h");
internal_iter->Finish();
Slice prefix("c");
ReadOptions ro;
ro.iterate_upper_bound = &prefix;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 7,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
SetPerfLevel(kEnableCount);
ASSERT_TRUE(GetPerfLevel() == kEnableCount);
get_perf_context()->Reset();
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(static_cast<int>(get_perf_context()->internal_delete_skipped_count), 1);
ASSERT_EQ(db_iter->key().ToString(), "b");
SetPerfLevel(kDisable);
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddDeletion("a");
internal_iter->AddDeletion("a");
internal_iter->AddDeletion("a");
internal_iter->AddDeletion("a");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->Finish();
ReadOptions ro;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "val_b");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->Finish();
ReadOptions ro;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 2,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "val_b");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "val_b");
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddPut("c", "val_c");
internal_iter->Finish();
ReadOptions ro;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "val_c");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "val_b");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "val_c");
}
}
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIteratorEmpty) {
Options options;
ImmutableCFOptions cf_options = ImmutableCFOptions(options);
ReadOptions ro;
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 0,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 0,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(!db_iter->Valid());
}
}
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIteratorUseSkipCountSkips) {
ReadOptions ro;
Options options;
options.statistics = rocksdb::CreateDBStatistics();
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
for (size_t i = 0; i < 200; ++i) {
internal_iter->AddPut("a", "a");
internal_iter->AddPut("b", "b");
internal_iter->AddPut("c", "c");
}
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(
NewDBIterator(env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 2, options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "c");
ASSERT_EQ(TestGetTickerCount(options, NUMBER_OF_RESEEKS_IN_ITERATION), 1u);
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "b");
ASSERT_EQ(TestGetTickerCount(options, NUMBER_OF_RESEEKS_IN_ITERATION), 2u);
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "a");
ASSERT_EQ(TestGetTickerCount(options, NUMBER_OF_RESEEKS_IN_ITERATION), 3u);
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_EQ(TestGetTickerCount(options, NUMBER_OF_RESEEKS_IN_ITERATION), 3u);
}
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIteratorUseSkip) {
ReadOptions ro;
Options options;
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
ImmutableCFOptions cf_options = ImmutableCFOptions(options);
{
for (size_t i = 0; i < 200; ++i) {
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("b", "merge_1");
internal_iter->AddMerge("a", "merge_2");
for (size_t k = 0; k < 200; ++k) {
internal_iter->AddPut("c", ToString(k));
}
internal_iter->Finish();
options.statistics = rocksdb::CreateDBStatistics();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, i + 2,
options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), ToString(i));
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_2");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
}
{
for (size_t i = 0; i < 200; ++i) {
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("b", "merge_1");
internal_iter->AddMerge("a", "merge_2");
for (size_t k = 0; k < 200; ++k) {
internal_iter->AddDeletion("c");
}
internal_iter->AddPut("c", "200");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, i + 2,
options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_2");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("b", "merge_1");
internal_iter->AddMerge("a", "merge_2");
for (size_t i = 0; i < 200; ++i) {
internal_iter->AddDeletion("c");
}
internal_iter->AddPut("c", "200");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 202,
options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "200");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_2");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
}
{
for (size_t i = 0; i < 200; ++i) {
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
for (size_t k = 0; k < 200; ++k) {
internal_iter->AddDeletion("c");
}
internal_iter->AddPut("c", "200");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, i,
options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(!db_iter->Valid());
db_iter->SeekToFirst();
ASSERT_TRUE(!db_iter->Valid());
}
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
for (size_t i = 0; i < 200; ++i) {
internal_iter->AddDeletion("c");
}
internal_iter->AddPut("c", "200");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 200,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "200");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "200");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
}
{
for (size_t i = 0; i < 200; ++i) {
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("b", "merge_1");
internal_iter->AddMerge("a", "merge_2");
for (size_t k = 0; k < 200; ++k) {
internal_iter->AddPut("d", ToString(k));
}
for (size_t k = 0; k < 200; ++k) {
internal_iter->AddPut("c", ToString(k));
}
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, i + 2,
options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "d");
ASSERT_EQ(db_iter->value().ToString(), ToString(i));
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_2");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
}
{
for (size_t i = 0; i < 200; ++i) {
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("b", "b");
internal_iter->AddMerge("a", "a");
for (size_t k = 0; k < 200; ++k) {
internal_iter->AddMerge("c", ToString(k));
}
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, i + 2,
options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
std::string merge_result = "0";
for (size_t j = 1; j <= i; ++j) {
merge_result += "," + ToString(j);
}
ASSERT_EQ(db_iter->value().ToString(), merge_result);
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "b");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "a");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
}
}
TEST_F(DBIteratorTest, DBIteratorSkipInternalKeys) {
Options options;
ImmutableCFOptions cf_options = ImmutableCFOptions(options);
ReadOptions ro;
// Basic test case ... Make sure explicityly passing the default value works.
// Skipping internal keys is disabled by default, when the value is 0.
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddDeletion("b");
internal_iter->AddDeletion("b");
internal_iter->AddPut("c", "val_c");
internal_iter->AddPut("c", "val_c");
internal_iter->AddDeletion("c");
internal_iter->AddPut("d", "val_d");
internal_iter->Finish();
ro.max_skippable_internal_keys = 0;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "d");
ASSERT_EQ(db_iter->value().ToString(), "val_d");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().ok());
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "d");
ASSERT_EQ(db_iter->value().ToString(), "val_d");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().ok());
}
// Test to make sure that the request will *not* fail as incomplete if
// num_internal_keys_skipped is *equal* to max_skippable_internal_keys
// threshold. (It will fail as incomplete only when the threshold is
// exceeded.)
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddDeletion("b");
internal_iter->AddDeletion("b");
internal_iter->AddPut("c", "val_c");
internal_iter->Finish();
ro.max_skippable_internal_keys = 2;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "val_c");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().ok());
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "val_c");
db_iter->Prev();
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().ok());
}
// Fail the request as incomplete when num_internal_keys_skipped >
// max_skippable_internal_keys
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddDeletion("b");
internal_iter->AddDeletion("b");
internal_iter->AddDeletion("b");
internal_iter->AddPut("c", "val_c");
internal_iter->Finish();
ro.max_skippable_internal_keys = 2;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "val_c");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
}
// Test that the num_internal_keys_skipped counter resets after a successful
// read.
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddDeletion("b");
internal_iter->AddDeletion("b");
internal_iter->AddPut("c", "val_c");
internal_iter->AddDeletion("d");
internal_iter->AddDeletion("d");
internal_iter->AddDeletion("d");
internal_iter->AddPut("e", "val_e");
internal_iter->Finish();
ro.max_skippable_internal_keys = 2;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "val_c");
db_iter->Next(); // num_internal_keys_skipped counter resets here.
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
}
// Test that the num_internal_keys_skipped counter resets after a successful
// read.
// Reverse direction
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddDeletion("b");
internal_iter->AddDeletion("b");
internal_iter->AddDeletion("b");
internal_iter->AddPut("c", "val_c");
internal_iter->AddDeletion("d");
internal_iter->AddDeletion("d");
internal_iter->AddPut("e", "val_e");
internal_iter->Finish();
ro.max_skippable_internal_keys = 2;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "e");
ASSERT_EQ(db_iter->value().ToString(), "val_e");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "val_c");
db_iter->Prev(); // num_internal_keys_skipped counter resets here.
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
}
// Test that skipping separate keys is handled
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddDeletion("b");
internal_iter->AddDeletion("c");
internal_iter->AddDeletion("d");
internal_iter->AddPut("e", "val_e");
internal_iter->Finish();
ro.max_skippable_internal_keys = 2;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "e");
ASSERT_EQ(db_iter->value().ToString(), "val_e");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
}
// Test if alternating puts and deletes of the same key are handled correctly.
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddPut("b", "val_b");
internal_iter->AddDeletion("b");
internal_iter->AddPut("c", "val_c");
internal_iter->AddDeletion("c");
internal_iter->AddPut("d", "val_d");
internal_iter->AddDeletion("d");
internal_iter->AddPut("e", "val_e");
internal_iter->Finish();
ro.max_skippable_internal_keys = 2;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "e");
ASSERT_EQ(db_iter->value().ToString(), "val_e");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
}
// Test for large number of skippable internal keys with *default*
// max_sequential_skip_in_iterations.
{
for (size_t i = 1; i <= 200; ++i) {
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
for (size_t j = 1; j <= i; ++j) {
internal_iter->AddPut("b", "val_b");
internal_iter->AddDeletion("b");
}
internal_iter->AddPut("c", "val_c");
internal_iter->Finish();
ro.max_skippable_internal_keys = i;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 2 * i + 1,
options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Next();
if ((options.max_sequential_skip_in_iterations + 1) >=
ro.max_skippable_internal_keys) {
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
} else {
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "val_c");
}
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "val_c");
db_iter->Prev();
if ((options.max_sequential_skip_in_iterations + 1) >=
ro.max_skippable_internal_keys) {
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
} else {
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
}
}
}
// Test for large number of skippable internal keys with a *non-default*
// max_sequential_skip_in_iterations.
{
for (size_t i = 1; i <= 200; ++i) {
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
for (size_t j = 1; j <= i; ++j) {
internal_iter->AddPut("b", "val_b");
internal_iter->AddDeletion("b");
}
internal_iter->AddPut("c", "val_c");
internal_iter->Finish();
options.max_sequential_skip_in_iterations = 1000;
ro.max_skippable_internal_keys = i;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 2 * i + 1,
options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "val_a");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "val_c");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_TRUE(db_iter->status().IsIncomplete());
}
}
}
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIterator1) {
ReadOptions ro;
Options options;
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "0");
internal_iter->AddPut("b", "0");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("a", "1");
internal_iter->AddMerge("b", "2");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(
NewDBIterator(env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 1, options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "0");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
Support for SingleDelete() Summary: This patch fixes #7460559. It introduces SingleDelete as a new database operation. This operation can be used to delete keys that were never overwritten (no put following another put of the same key). If an overwritten key is single deleted the behavior is undefined. Single deletion of a non-existent key has no effect but multiple consecutive single deletions are not allowed (see limitations). In contrast to the conventional Delete() operation, the deletion entry is removed along with the value when the two are lined up in a compaction. Note: The semantics are similar to @igor's prototype that allowed to have this behavior on the granularity of a column family ( https://reviews.facebook.net/D42093 ). This new patch, however, is more aggressive when it comes to removing tombstones: It removes the SingleDelete together with the value whenever there is no snapshot between them while the older patch only did this when the sequence number of the deletion was older than the earliest snapshot. Most of the complex additions are in the Compaction Iterator, all other changes should be relatively straightforward. The patch also includes basic support for single deletions in db_stress and db_bench. Limitations: - Not compatible with cuckoo hash tables - Single deletions cannot be used in combination with merges and normal deletions on the same key (other keys are not affected by this) - Consecutive single deletions are currently not allowed (and older version of this patch supported this so it could be resurrected if needed) Test Plan: make all check Reviewers: yhchiang, sdong, rven, anthony, yoshinorim, igor Reviewed By: igor Subscribers: maykov, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D43179
9 years ago
db_iter->Next();
ASSERT_FALSE(db_iter->Valid());
}
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIterator2) {
ReadOptions ro;
Options options;
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "0");
internal_iter->AddPut("b", "0");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("a", "1");
internal_iter->AddMerge("b", "2");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(
NewDBIterator(env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 0, options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "0");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
}
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIterator3) {
ReadOptions ro;
Options options;
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "0");
internal_iter->AddPut("b", "0");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("a", "1");
internal_iter->AddMerge("b", "2");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(
NewDBIterator(env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 2, options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "0");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
}
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIterator4) {
ReadOptions ro;
Options options;
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "0");
internal_iter->AddPut("b", "0");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("a", "1");
internal_iter->AddMerge("b", "2");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(
NewDBIterator(env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 4, options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "0,1");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "2");
db_iter->Next();
ASSERT_TRUE(!db_iter->Valid());
}
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIterator5) {
ReadOptions ro;
Options options;
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
ImmutableCFOptions cf_options = ImmutableCFOptions(options);
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddPut("a", "put_1");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 0,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddPut("a", "put_1");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 1,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1,merge_2");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddPut("a", "put_1");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 2,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1,merge_2,merge_3");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddPut("a", "put_1");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 3,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "put_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddPut("a", "put_1");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 4,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "put_1,merge_4");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddPut("a", "put_1");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 5,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "put_1,merge_4,merge_5");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddPut("a", "put_1");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 6,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "put_1,merge_4,merge_5,merge_6");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
// put, singledelete, merge
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "val_a");
internal_iter->AddSingleDeletion("a");
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddPut("b", "val_b");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 10,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->Seek("b");
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
}
}
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIterator6) {
ReadOptions ro;
Options options;
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
ImmutableCFOptions cf_options = ImmutableCFOptions(options);
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddDeletion("a");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 0,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddDeletion("a");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 1,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1,merge_2");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddDeletion("a");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 2,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1,merge_2,merge_3");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddDeletion("a");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 3,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddDeletion("a");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 4,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_4");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddDeletion("a");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 5,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_4,merge_5");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("a", "merge_3");
internal_iter->AddDeletion("a");
internal_iter->AddMerge("a", "merge_4");
internal_iter->AddMerge("a", "merge_5");
internal_iter->AddMerge("a", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 6,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_4,merge_5,merge_6");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
}
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIterator7) {
ReadOptions ro;
Options options;
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
ImmutableCFOptions cf_options = ImmutableCFOptions(options);
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddPut("b", "val");
internal_iter->AddMerge("b", "merge_2");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_3");
internal_iter->AddMerge("c", "merge_4");
internal_iter->AddMerge("c", "merge_5");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_6");
internal_iter->AddMerge("b", "merge_7");
internal_iter->AddMerge("b", "merge_8");
internal_iter->AddMerge("b", "merge_9");
internal_iter->AddMerge("b", "merge_10");
internal_iter->AddMerge("b", "merge_11");
internal_iter->AddDeletion("c");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 0,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddPut("b", "val");
internal_iter->AddMerge("b", "merge_2");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_3");
internal_iter->AddMerge("c", "merge_4");
internal_iter->AddMerge("c", "merge_5");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_6");
internal_iter->AddMerge("b", "merge_7");
internal_iter->AddMerge("b", "merge_8");
internal_iter->AddMerge("b", "merge_9");
internal_iter->AddMerge("b", "merge_10");
internal_iter->AddMerge("b", "merge_11");
internal_iter->AddDeletion("c");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 2,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "val,merge_2");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddPut("b", "val");
internal_iter->AddMerge("b", "merge_2");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_3");
internal_iter->AddMerge("c", "merge_4");
internal_iter->AddMerge("c", "merge_5");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_6");
internal_iter->AddMerge("b", "merge_7");
internal_iter->AddMerge("b", "merge_8");
internal_iter->AddMerge("b", "merge_9");
internal_iter->AddMerge("b", "merge_10");
internal_iter->AddMerge("b", "merge_11");
internal_iter->AddDeletion("c");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 4,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_3");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddPut("b", "val");
internal_iter->AddMerge("b", "merge_2");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_3");
internal_iter->AddMerge("c", "merge_4");
internal_iter->AddMerge("c", "merge_5");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_6");
internal_iter->AddMerge("b", "merge_7");
internal_iter->AddMerge("b", "merge_8");
internal_iter->AddMerge("b", "merge_9");
internal_iter->AddMerge("b", "merge_10");
internal_iter->AddMerge("b", "merge_11");
internal_iter->AddDeletion("c");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 5,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "merge_4");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_3");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddPut("b", "val");
internal_iter->AddMerge("b", "merge_2");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_3");
internal_iter->AddMerge("c", "merge_4");
internal_iter->AddMerge("c", "merge_5");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_6");
internal_iter->AddMerge("b", "merge_7");
internal_iter->AddMerge("b", "merge_8");
internal_iter->AddMerge("b", "merge_9");
internal_iter->AddMerge("b", "merge_10");
internal_iter->AddMerge("b", "merge_11");
internal_iter->AddDeletion("c");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 6,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "merge_4,merge_5");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_3");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddPut("b", "val");
internal_iter->AddMerge("b", "merge_2");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_3");
internal_iter->AddMerge("c", "merge_4");
internal_iter->AddMerge("c", "merge_5");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_6");
internal_iter->AddMerge("b", "merge_7");
internal_iter->AddMerge("b", "merge_8");
internal_iter->AddMerge("b", "merge_9");
internal_iter->AddMerge("b", "merge_10");
internal_iter->AddMerge("b", "merge_11");
internal_iter->AddDeletion("c");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 7,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "merge_4,merge_5");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddPut("b", "val");
internal_iter->AddMerge("b", "merge_2");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_3");
internal_iter->AddMerge("c", "merge_4");
internal_iter->AddMerge("c", "merge_5");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_6");
internal_iter->AddMerge("b", "merge_7");
internal_iter->AddMerge("b", "merge_8");
internal_iter->AddMerge("b", "merge_9");
internal_iter->AddMerge("b", "merge_10");
internal_iter->AddMerge("b", "merge_11");
internal_iter->AddDeletion("c");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 9,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "merge_4,merge_5");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_6,merge_7");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddPut("b", "val");
internal_iter->AddMerge("b", "merge_2");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_3");
internal_iter->AddMerge("c", "merge_4");
internal_iter->AddMerge("c", "merge_5");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_6");
internal_iter->AddMerge("b", "merge_7");
internal_iter->AddMerge("b", "merge_8");
internal_iter->AddMerge("b", "merge_9");
internal_iter->AddMerge("b", "merge_10");
internal_iter->AddMerge("b", "merge_11");
internal_iter->AddDeletion("c");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 13,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "merge_4,merge_5");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(),
"merge_6,merge_7,merge_8,merge_9,merge_10,merge_11");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddPut("b", "val");
internal_iter->AddMerge("b", "merge_2");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_3");
internal_iter->AddMerge("c", "merge_4");
internal_iter->AddMerge("c", "merge_5");
internal_iter->AddDeletion("b");
internal_iter->AddMerge("b", "merge_6");
internal_iter->AddMerge("b", "merge_7");
internal_iter->AddMerge("b", "merge_8");
internal_iter->AddMerge("b", "merge_9");
internal_iter->AddMerge("b", "merge_10");
internal_iter->AddMerge("b", "merge_11");
internal_iter->AddDeletion("c");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, cf_options, BytewiseComparator(), internal_iter, 14,
options.max_sequential_skip_in_iterations, nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(),
"merge_6,merge_7,merge_8,merge_9,merge_10,merge_11");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1");
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
}
}
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
TEST_F(DBIteratorTest, DBIterator8) {
ReadOptions ro;
Options options;
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddDeletion("a");
internal_iter->AddPut("a", "0");
internal_iter->AddPut("b", "0");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 10, options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "0");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "0");
}
// TODO(3.13): fix the issue of Seek() then Prev() which might not necessary
// return the biggest element smaller than the seek key.
TEST_F(DBIteratorTest, DBIterator9) {
ReadOptions ro;
Options options;
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
{
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddMerge("a", "merge_1");
internal_iter->AddMerge("a", "merge_2");
internal_iter->AddMerge("b", "merge_3");
internal_iter->AddMerge("b", "merge_4");
internal_iter->AddMerge("d", "merge_5");
internal_iter->AddMerge("d", "merge_6");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 10, options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_3,merge_4");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "d");
ASSERT_EQ(db_iter->value().ToString(), "merge_5,merge_6");
db_iter->Seek("b");
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_3,merge_4");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "merge_1,merge_2");
db_iter->SeekForPrev("b");
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_3,merge_4");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "d");
ASSERT_EQ(db_iter->value().ToString(), "merge_5,merge_6");
db_iter->Seek("c");
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "d");
ASSERT_EQ(db_iter->value().ToString(), "merge_5,merge_6");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_3,merge_4");
db_iter->SeekForPrev("c");
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "merge_3,merge_4");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "d");
ASSERT_EQ(db_iter->value().ToString(), "merge_5,merge_6");
}
}
// TODO(3.13): fix the issue of Seek() then Prev() which might not necessary
// return the biggest element smaller than the seek key.
TEST_F(DBIteratorTest, DBIterator10) {
ReadOptions ro;
Options options;
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "1");
internal_iter->AddPut("b", "2");
internal_iter->AddPut("c", "3");
internal_iter->AddPut("d", "4");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 10, options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
db_iter->Seek("c");
ASSERT_TRUE(db_iter->Valid());
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "2");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "3");
db_iter->SeekForPrev("c");
ASSERT_TRUE(db_iter->Valid());
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "d");
ASSERT_EQ(db_iter->value().ToString(), "4");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "3");
}
TEST_F(DBIteratorTest, SeekToLastOccurrenceSeq0) {
ReadOptions ro;
Options options;
options.merge_operator = nullptr;
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "1");
internal_iter->AddPut("b", "2");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 10, 0 /* force seek */, nullptr /*read_callback*/));
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "1");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "2");
db_iter->Next();
ASSERT_FALSE(db_iter->Valid());
}
Support for SingleDelete() Summary: This patch fixes #7460559. It introduces SingleDelete as a new database operation. This operation can be used to delete keys that were never overwritten (no put following another put of the same key). If an overwritten key is single deleted the behavior is undefined. Single deletion of a non-existent key has no effect but multiple consecutive single deletions are not allowed (see limitations). In contrast to the conventional Delete() operation, the deletion entry is removed along with the value when the two are lined up in a compaction. Note: The semantics are similar to @igor's prototype that allowed to have this behavior on the granularity of a column family ( https://reviews.facebook.net/D42093 ). This new patch, however, is more aggressive when it comes to removing tombstones: It removes the SingleDelete together with the value whenever there is no snapshot between them while the older patch only did this when the sequence number of the deletion was older than the earliest snapshot. Most of the complex additions are in the Compaction Iterator, all other changes should be relatively straightforward. The patch also includes basic support for single deletions in db_stress and db_bench. Limitations: - Not compatible with cuckoo hash tables - Single deletions cannot be used in combination with merges and normal deletions on the same key (other keys are not affected by this) - Consecutive single deletions are currently not allowed (and older version of this patch supported this so it could be resurrected if needed) Test Plan: make all check Reviewers: yhchiang, sdong, rven, anthony, yoshinorim, igor Reviewed By: igor Subscribers: maykov, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D43179
9 years ago
TEST_F(DBIteratorTest, DBIterator11) {
ReadOptions ro;
Support for SingleDelete() Summary: This patch fixes #7460559. It introduces SingleDelete as a new database operation. This operation can be used to delete keys that were never overwritten (no put following another put of the same key). If an overwritten key is single deleted the behavior is undefined. Single deletion of a non-existent key has no effect but multiple consecutive single deletions are not allowed (see limitations). In contrast to the conventional Delete() operation, the deletion entry is removed along with the value when the two are lined up in a compaction. Note: The semantics are similar to @igor's prototype that allowed to have this behavior on the granularity of a column family ( https://reviews.facebook.net/D42093 ). This new patch, however, is more aggressive when it comes to removing tombstones: It removes the SingleDelete together with the value whenever there is no snapshot between them while the older patch only did this when the sequence number of the deletion was older than the earliest snapshot. Most of the complex additions are in the Compaction Iterator, all other changes should be relatively straightforward. The patch also includes basic support for single deletions in db_stress and db_bench. Limitations: - Not compatible with cuckoo hash tables - Single deletions cannot be used in combination with merges and normal deletions on the same key (other keys are not affected by this) - Consecutive single deletions are currently not allowed (and older version of this patch supported this so it could be resurrected if needed) Test Plan: make all check Reviewers: yhchiang, sdong, rven, anthony, yoshinorim, igor Reviewed By: igor Subscribers: maykov, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D43179
9 years ago
Options options;
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "0");
internal_iter->AddPut("b", "0");
internal_iter->AddSingleDeletion("b");
internal_iter->AddMerge("a", "1");
internal_iter->AddMerge("b", "2");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(
NewDBIterator(env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 1, options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
Support for SingleDelete() Summary: This patch fixes #7460559. It introduces SingleDelete as a new database operation. This operation can be used to delete keys that were never overwritten (no put following another put of the same key). If an overwritten key is single deleted the behavior is undefined. Single deletion of a non-existent key has no effect but multiple consecutive single deletions are not allowed (see limitations). In contrast to the conventional Delete() operation, the deletion entry is removed along with the value when the two are lined up in a compaction. Note: The semantics are similar to @igor's prototype that allowed to have this behavior on the granularity of a column family ( https://reviews.facebook.net/D42093 ). This new patch, however, is more aggressive when it comes to removing tombstones: It removes the SingleDelete together with the value whenever there is no snapshot between them while the older patch only did this when the sequence number of the deletion was older than the earliest snapshot. Most of the complex additions are in the Compaction Iterator, all other changes should be relatively straightforward. The patch also includes basic support for single deletions in db_stress and db_bench. Limitations: - Not compatible with cuckoo hash tables - Single deletions cannot be used in combination with merges and normal deletions on the same key (other keys are not affected by this) - Consecutive single deletions are currently not allowed (and older version of this patch supported this so it could be resurrected if needed) Test Plan: make all check Reviewers: yhchiang, sdong, rven, anthony, yoshinorim, igor Reviewed By: igor Subscribers: maykov, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D43179
9 years ago
db_iter->SeekToFirst();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "0");
db_iter->Next();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
db_iter->Next();
ASSERT_FALSE(db_iter->Valid());
}
TEST_F(DBIteratorTest, DBIterator12) {
ReadOptions ro;
Support for SingleDelete() Summary: This patch fixes #7460559. It introduces SingleDelete as a new database operation. This operation can be used to delete keys that were never overwritten (no put following another put of the same key). If an overwritten key is single deleted the behavior is undefined. Single deletion of a non-existent key has no effect but multiple consecutive single deletions are not allowed (see limitations). In contrast to the conventional Delete() operation, the deletion entry is removed along with the value when the two are lined up in a compaction. Note: The semantics are similar to @igor's prototype that allowed to have this behavior on the granularity of a column family ( https://reviews.facebook.net/D42093 ). This new patch, however, is more aggressive when it comes to removing tombstones: It removes the SingleDelete together with the value whenever there is no snapshot between them while the older patch only did this when the sequence number of the deletion was older than the earliest snapshot. Most of the complex additions are in the Compaction Iterator, all other changes should be relatively straightforward. The patch also includes basic support for single deletions in db_stress and db_bench. Limitations: - Not compatible with cuckoo hash tables - Single deletions cannot be used in combination with merges and normal deletions on the same key (other keys are not affected by this) - Consecutive single deletions are currently not allowed (and older version of this patch supported this so it could be resurrected if needed) Test Plan: make all check Reviewers: yhchiang, sdong, rven, anthony, yoshinorim, igor Reviewed By: igor Subscribers: maykov, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D43179
9 years ago
Options options;
options.merge_operator = nullptr;
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("a", "1");
internal_iter->AddPut("b", "2");
internal_iter->AddPut("c", "3");
internal_iter->AddSingleDeletion("b");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(
NewDBIterator(env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 10, 0, nullptr /*read_callback*/));
Support for SingleDelete() Summary: This patch fixes #7460559. It introduces SingleDelete as a new database operation. This operation can be used to delete keys that were never overwritten (no put following another put of the same key). If an overwritten key is single deleted the behavior is undefined. Single deletion of a non-existent key has no effect but multiple consecutive single deletions are not allowed (see limitations). In contrast to the conventional Delete() operation, the deletion entry is removed along with the value when the two are lined up in a compaction. Note: The semantics are similar to @igor's prototype that allowed to have this behavior on the granularity of a column family ( https://reviews.facebook.net/D42093 ). This new patch, however, is more aggressive when it comes to removing tombstones: It removes the SingleDelete together with the value whenever there is no snapshot between them while the older patch only did this when the sequence number of the deletion was older than the earliest snapshot. Most of the complex additions are in the Compaction Iterator, all other changes should be relatively straightforward. The patch also includes basic support for single deletions in db_stress and db_bench. Limitations: - Not compatible with cuckoo hash tables - Single deletions cannot be used in combination with merges and normal deletions on the same key (other keys are not affected by this) - Consecutive single deletions are currently not allowed (and older version of this patch supported this so it could be resurrected if needed) Test Plan: make all check Reviewers: yhchiang, sdong, rven, anthony, yoshinorim, igor Reviewed By: igor Subscribers: maykov, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D43179
9 years ago
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), "3");
db_iter->Prev();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "1");
db_iter->Prev();
ASSERT_FALSE(db_iter->Valid());
}
TEST_F(DBIteratorTest, DBIterator13) {
ReadOptions ro;
Options options;
options.merge_operator = nullptr;
std::string key;
key.resize(9);
key.assign(9, static_cast<char>(0));
key[0] = 'b';
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut(key, "0");
internal_iter->AddPut(key, "1");
internal_iter->AddPut(key, "2");
internal_iter->AddPut(key, "3");
internal_iter->AddPut(key, "4");
internal_iter->AddPut(key, "5");
internal_iter->AddPut(key, "6");
internal_iter->AddPut(key, "7");
internal_iter->AddPut(key, "8");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(
NewDBIterator(env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 2, 3, nullptr /*read_callback*/));
db_iter->Seek("b");
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), key);
ASSERT_EQ(db_iter->value().ToString(), "2");
}
TEST_F(DBIteratorTest, DBIterator14) {
ReadOptions ro;
Options options;
options.merge_operator = nullptr;
std::string key("b");
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddPut("b", "0");
internal_iter->AddPut("b", "1");
internal_iter->AddPut("b", "2");
internal_iter->AddPut("b", "3");
internal_iter->AddPut("a", "4");
internal_iter->AddPut("a", "5");
internal_iter->AddPut("a", "6");
internal_iter->AddPut("c", "7");
internal_iter->AddPut("c", "8");
internal_iter->AddPut("c", "9");
internal_iter->Finish();
std::unique_ptr<Iterator> db_iter(
NewDBIterator(env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 4, 1, nullptr /*read_callback*/));
db_iter->Seek("b");
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "b");
ASSERT_EQ(db_iter->value().ToString(), "3");
db_iter->SeekToFirst();
ASSERT_EQ(db_iter->key().ToString(), "a");
ASSERT_EQ(db_iter->value().ToString(), "4");
}
class DBIterWithMergeIterTest : public testing::Test {
public:
DBIterWithMergeIterTest()
: env_(Env::Default()), icomp_(BytewiseComparator()) {
options_.merge_operator = nullptr;
internal_iter1_ = new TestIterator(BytewiseComparator());
internal_iter1_->Add("a", kTypeValue, "1", 3u);
internal_iter1_->Add("f", kTypeValue, "2", 5u);
internal_iter1_->Add("g", kTypeValue, "3", 7u);
internal_iter1_->Finish();
internal_iter2_ = new TestIterator(BytewiseComparator());
internal_iter2_->Add("a", kTypeValue, "4", 6u);
internal_iter2_->Add("b", kTypeValue, "5", 1u);
internal_iter2_->Add("c", kTypeValue, "6", 2u);
internal_iter2_->Add("d", kTypeValue, "7", 3u);
internal_iter2_->Finish();
std::vector<InternalIterator*> child_iters;
child_iters.push_back(internal_iter1_);
child_iters.push_back(internal_iter2_);
InternalKeyComparator icomp(BytewiseComparator());
InternalIterator* merge_iter =
NewMergingIterator(&icomp_, &child_iters[0], 2u);
db_iter_.reset(NewDBIterator(
env_, ro_, ImmutableCFOptions(options_), BytewiseComparator(),
merge_iter, 8 /* read data earlier than seqId 8 */,
3 /* max iterators before reseek */, nullptr /*read_callback*/));
}
Env* env_;
ReadOptions ro_;
Options options_;
TestIterator* internal_iter1_;
TestIterator* internal_iter2_;
InternalKeyComparator icomp_;
Iterator* merge_iter_;
std::unique_ptr<Iterator> db_iter_;
};
TEST_F(DBIterWithMergeIterTest, InnerMergeIterator1) {
db_iter_->SeekToFirst();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "a");
ASSERT_EQ(db_iter_->value().ToString(), "4");
db_iter_->Next();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "b");
ASSERT_EQ(db_iter_->value().ToString(), "5");
db_iter_->Next();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "c");
ASSERT_EQ(db_iter_->value().ToString(), "6");
db_iter_->Next();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "d");
ASSERT_EQ(db_iter_->value().ToString(), "7");
db_iter_->Next();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "f");
ASSERT_EQ(db_iter_->value().ToString(), "2");
db_iter_->Next();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "g");
ASSERT_EQ(db_iter_->value().ToString(), "3");
db_iter_->Next();
ASSERT_FALSE(db_iter_->Valid());
}
TEST_F(DBIterWithMergeIterTest, InnerMergeIterator2) {
// Test Prev() when one child iterator is at its end.
db_iter_->SeekForPrev("g");
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "g");
ASSERT_EQ(db_iter_->value().ToString(), "3");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "f");
ASSERT_EQ(db_iter_->value().ToString(), "2");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "d");
ASSERT_EQ(db_iter_->value().ToString(), "7");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "c");
ASSERT_EQ(db_iter_->value().ToString(), "6");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "b");
ASSERT_EQ(db_iter_->value().ToString(), "5");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "a");
ASSERT_EQ(db_iter_->value().ToString(), "4");
}
TEST_F(DBIterWithMergeIterTest, InnerMergeIteratorDataRace1) {
// Test Prev() when one child iterator is at its end but more rows
// are added.
db_iter_->Seek("f");
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "f");
ASSERT_EQ(db_iter_->value().ToString(), "2");
// Test call back inserts a key in the end of the mem table after
// MergeIterator::Prev() realized the mem table iterator is at its end
// and before an SeekToLast() is called.
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"MergeIterator::Prev:BeforeSeekToLast",
[&](void* arg) { internal_iter2_->Add("z", kTypeValue, "7", 12u); });
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "d");
ASSERT_EQ(db_iter_->value().ToString(), "7");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "c");
ASSERT_EQ(db_iter_->value().ToString(), "6");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "b");
ASSERT_EQ(db_iter_->value().ToString(), "5");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "a");
ASSERT_EQ(db_iter_->value().ToString(), "4");
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(DBIterWithMergeIterTest, InnerMergeIteratorDataRace2) {
// Test Prev() when one child iterator is at its end but more rows
// are added.
db_iter_->Seek("f");
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "f");
ASSERT_EQ(db_iter_->value().ToString(), "2");
// Test call back inserts entries for update a key in the end of the
// mem table after MergeIterator::Prev() realized the mem tableiterator is at
// its end and before an SeekToLast() is called.
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"MergeIterator::Prev:BeforeSeekToLast", [&](void* arg) {
internal_iter2_->Add("z", kTypeValue, "7", 12u);
internal_iter2_->Add("z", kTypeValue, "7", 11u);
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "d");
ASSERT_EQ(db_iter_->value().ToString(), "7");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "c");
ASSERT_EQ(db_iter_->value().ToString(), "6");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "b");
ASSERT_EQ(db_iter_->value().ToString(), "5");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "a");
ASSERT_EQ(db_iter_->value().ToString(), "4");
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(DBIterWithMergeIterTest, InnerMergeIteratorDataRace3) {
// Test Prev() when one child iterator is at its end but more rows
// are added and max_skipped is triggered.
db_iter_->Seek("f");
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "f");
ASSERT_EQ(db_iter_->value().ToString(), "2");
// Test call back inserts entries for update a key in the end of the
// mem table after MergeIterator::Prev() realized the mem table iterator is at
// its end and before an SeekToLast() is called.
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"MergeIterator::Prev:BeforeSeekToLast", [&](void* arg) {
internal_iter2_->Add("z", kTypeValue, "7", 16u, true);
internal_iter2_->Add("z", kTypeValue, "7", 15u, true);
internal_iter2_->Add("z", kTypeValue, "7", 14u, true);
internal_iter2_->Add("z", kTypeValue, "7", 13u, true);
internal_iter2_->Add("z", kTypeValue, "7", 12u, true);
internal_iter2_->Add("z", kTypeValue, "7", 11u, true);
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "d");
ASSERT_EQ(db_iter_->value().ToString(), "7");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "c");
ASSERT_EQ(db_iter_->value().ToString(), "6");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "b");
ASSERT_EQ(db_iter_->value().ToString(), "5");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "a");
ASSERT_EQ(db_iter_->value().ToString(), "4");
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(DBIterWithMergeIterTest, InnerMergeIteratorDataRace4) {
// Test Prev() when one child iterator has more rows inserted
// between Seek() and Prev() when changing directions.
internal_iter2_->Add("z", kTypeValue, "9", 4u);
db_iter_->Seek("g");
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "g");
ASSERT_EQ(db_iter_->value().ToString(), "3");
// Test call back inserts entries for update a key before "z" in
// mem table after MergeIterator::Prev() calls mem table iterator's
// Seek() and before calling Prev()
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"MergeIterator::Prev:BeforePrev", [&](void* arg) {
IteratorWrapper* it = reinterpret_cast<IteratorWrapper*>(arg);
if (it->key().starts_with("z")) {
internal_iter2_->Add("x", kTypeValue, "7", 16u, true);
internal_iter2_->Add("x", kTypeValue, "7", 15u, true);
internal_iter2_->Add("x", kTypeValue, "7", 14u, true);
internal_iter2_->Add("x", kTypeValue, "7", 13u, true);
internal_iter2_->Add("x", kTypeValue, "7", 12u, true);
internal_iter2_->Add("x", kTypeValue, "7", 11u, true);
}
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "f");
ASSERT_EQ(db_iter_->value().ToString(), "2");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "d");
ASSERT_EQ(db_iter_->value().ToString(), "7");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "c");
ASSERT_EQ(db_iter_->value().ToString(), "6");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "b");
ASSERT_EQ(db_iter_->value().ToString(), "5");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "a");
ASSERT_EQ(db_iter_->value().ToString(), "4");
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(DBIterWithMergeIterTest, InnerMergeIteratorDataRace5) {
internal_iter2_->Add("z", kTypeValue, "9", 4u);
// Test Prev() when one child iterator has more rows inserted
// between Seek() and Prev() when changing directions.
db_iter_->Seek("g");
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "g");
ASSERT_EQ(db_iter_->value().ToString(), "3");
// Test call back inserts entries for update a key before "z" in
// mem table after MergeIterator::Prev() calls mem table iterator's
// Seek() and before calling Prev()
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"MergeIterator::Prev:BeforePrev", [&](void* arg) {
IteratorWrapper* it = reinterpret_cast<IteratorWrapper*>(arg);
if (it->key().starts_with("z")) {
internal_iter2_->Add("x", kTypeValue, "7", 16u, true);
internal_iter2_->Add("x", kTypeValue, "7", 15u, true);
}
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "f");
ASSERT_EQ(db_iter_->value().ToString(), "2");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "d");
ASSERT_EQ(db_iter_->value().ToString(), "7");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "c");
ASSERT_EQ(db_iter_->value().ToString(), "6");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "b");
ASSERT_EQ(db_iter_->value().ToString(), "5");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "a");
ASSERT_EQ(db_iter_->value().ToString(), "4");
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(DBIterWithMergeIterTest, InnerMergeIteratorDataRace6) {
internal_iter2_->Add("z", kTypeValue, "9", 4u);
// Test Prev() when one child iterator has more rows inserted
// between Seek() and Prev() when changing directions.
db_iter_->Seek("g");
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "g");
ASSERT_EQ(db_iter_->value().ToString(), "3");
// Test call back inserts an entry for update a key before "z" in
// mem table after MergeIterator::Prev() calls mem table iterator's
// Seek() and before calling Prev()
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"MergeIterator::Prev:BeforePrev", [&](void* arg) {
IteratorWrapper* it = reinterpret_cast<IteratorWrapper*>(arg);
if (it->key().starts_with("z")) {
internal_iter2_->Add("x", kTypeValue, "7", 16u, true);
}
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "f");
ASSERT_EQ(db_iter_->value().ToString(), "2");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "d");
ASSERT_EQ(db_iter_->value().ToString(), "7");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "c");
ASSERT_EQ(db_iter_->value().ToString(), "6");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "b");
ASSERT_EQ(db_iter_->value().ToString(), "5");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "a");
ASSERT_EQ(db_iter_->value().ToString(), "4");
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(DBIterWithMergeIterTest, InnerMergeIteratorDataRace7) {
internal_iter1_->Add("u", kTypeValue, "10", 4u);
internal_iter1_->Add("v", kTypeValue, "11", 4u);
internal_iter1_->Add("w", kTypeValue, "12", 4u);
internal_iter2_->Add("z", kTypeValue, "9", 4u);
// Test Prev() when one child iterator has more rows inserted
// between Seek() and Prev() when changing directions.
db_iter_->Seek("g");
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "g");
ASSERT_EQ(db_iter_->value().ToString(), "3");
// Test call back inserts entries for update a key before "z" in
// mem table after MergeIterator::Prev() calls mem table iterator's
// Seek() and before calling Prev()
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"MergeIterator::Prev:BeforePrev", [&](void* arg) {
IteratorWrapper* it = reinterpret_cast<IteratorWrapper*>(arg);
if (it->key().starts_with("z")) {
internal_iter2_->Add("x", kTypeValue, "7", 16u, true);
internal_iter2_->Add("x", kTypeValue, "7", 15u, true);
internal_iter2_->Add("x", kTypeValue, "7", 14u, true);
internal_iter2_->Add("x", kTypeValue, "7", 13u, true);
internal_iter2_->Add("x", kTypeValue, "7", 12u, true);
internal_iter2_->Add("x", kTypeValue, "7", 11u, true);
}
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "f");
ASSERT_EQ(db_iter_->value().ToString(), "2");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "d");
ASSERT_EQ(db_iter_->value().ToString(), "7");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "c");
ASSERT_EQ(db_iter_->value().ToString(), "6");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "b");
ASSERT_EQ(db_iter_->value().ToString(), "5");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "a");
ASSERT_EQ(db_iter_->value().ToString(), "4");
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(DBIterWithMergeIterTest, InnerMergeIteratorDataRace8) {
// internal_iter1_: a, f, g
// internal_iter2_: a, b, c, d, adding (z)
internal_iter2_->Add("z", kTypeValue, "9", 4u);
// Test Prev() when one child iterator has more rows inserted
// between Seek() and Prev() when changing directions.
db_iter_->Seek("g");
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "g");
ASSERT_EQ(db_iter_->value().ToString(), "3");
// Test call back inserts two keys before "z" in mem table after
// MergeIterator::Prev() calls mem table iterator's Seek() and
// before calling Prev()
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"MergeIterator::Prev:BeforePrev", [&](void* arg) {
IteratorWrapper* it = reinterpret_cast<IteratorWrapper*>(arg);
if (it->key().starts_with("z")) {
internal_iter2_->Add("x", kTypeValue, "7", 16u, true);
internal_iter2_->Add("y", kTypeValue, "7", 17u, true);
}
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "f");
ASSERT_EQ(db_iter_->value().ToString(), "2");
db_iter_->Prev();
ASSERT_TRUE(db_iter_->Valid());
ASSERT_EQ(db_iter_->key().ToString(), "d");
ASSERT_EQ(db_iter_->value().ToString(), "7");
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(DBIteratorTest, SeekPrefixTombstones) {
ReadOptions ro;
Options options;
options.prefix_extractor.reset(NewNoopTransform());
TestIterator* internal_iter = new TestIterator(BytewiseComparator());
internal_iter->AddDeletion("b");
internal_iter->AddDeletion("c");
internal_iter->AddDeletion("d");
internal_iter->AddDeletion("e");
internal_iter->AddDeletion("f");
internal_iter->AddDeletion("g");
internal_iter->Finish();
ro.prefix_same_as_start = true;
std::unique_ptr<Iterator> db_iter(NewDBIterator(
env_, ro, ImmutableCFOptions(options), BytewiseComparator(),
internal_iter, 10, options.max_sequential_skip_in_iterations,
nullptr /*read_callback*/));
int skipped_keys = 0;
get_perf_context()->Reset();
db_iter->SeekForPrev("z");
skipped_keys =
static_cast<int>(get_perf_context()->internal_key_skipped_count);
ASSERT_EQ(skipped_keys, 0);
get_perf_context()->Reset();
db_iter->Seek("a");
skipped_keys =
static_cast<int>(get_perf_context()->internal_key_skipped_count);
ASSERT_EQ(skipped_keys, 0);
}
} // namespace rocksdb
rocksdb: switch to gtest Summary: Our existing test notation is very similar to what is used in gtest. It makes it easy to adopt what is different. In this diff I modify existing [[ https://code.google.com/p/googletest/wiki/Primer#Test_Fixtures:_Using_the_Same_Data_Configuration_for_Multiple_Te | test fixture ]] classes to inherit from `testing::Test`. Also for unit tests that use fixture class, `TEST` is replaced with `TEST_F` as required in gtest. There are several custom `main` functions in our existing tests. To make this transition easier, I modify all `main` functions to fallow gtest notation. But eventually we can remove them and use implementation of `main` that gtest provides. ```lang=bash % cat ~/transform #!/bin/sh files=$(git ls-files '*test\.cc') for file in $files do if grep -q "rocksdb::test::RunAllTests()" $file then if grep -Eq '^class \w+Test {' $file then perl -pi -e 's/^(class \w+Test) {/${1}: public testing::Test {/g' $file perl -pi -e 's/^(TEST)/${1}_F/g' $file fi perl -pi -e 's/(int main.*\{)/${1}::testing::InitGoogleTest(&argc, argv);/g' $file perl -pi -e 's/rocksdb::test::RunAllTests/RUN_ALL_TESTS/g' $file fi done % sh ~/transform % make format ``` Second iteration of this diff contains only scripted changes. Third iteration contains manual changes to fix last errors and make it compilable. Test Plan: Build and notice no errors. ```lang=bash % USE_CLANG=1 make check -j55 ``` Tests are still testing. Reviewers: meyering, sdong, rven, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D35157
10 years ago
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}