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Fix db_test

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Summary: Added deletion of DBIterators in DBIterator's tests

Test Plan: make valgrind_check

Reviewers: igor, sdong

Reviewed By: sdong

Subscribers: leveldb

Differential Revision: https://reviews.facebook.net/D20043
main
Stanislau Hlebik 10 years ago
parent 0418e66e2a
commit 1c9f190ae3
3 changed files with 1338 additions and 947 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 4
      Makefile
  2. 1334
      db/db_iter_test.cc
  3. 947
      db/db_test.cc

4
Makefile
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@ -69,6 +69,7 @@ VALGRIND_OPTS = --error-exitcode=$(VALGRIND_ERROR) --leak-check=full
TESTS = \
db_test \
db_iter_test \
block_hash_index_test \
autovector_test \
column_family_test \
@ -322,6 +323,9 @@ crc32c_test: util/crc32c_test.o $(LIBOBJECTS) $(TESTHARNESS)
db_test: db/db_test.o $(LIBOBJECTS) $(TESTHARNESS)
$(CXX) db/db_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
db_iter_test: db/db_iter_test.o $(LIBOBJECTS) $(TESTHARNESS)
$(CXX) db/db_iter_test.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS)
log_write_bench: util/log_write_bench.o $(LIBOBJECTS) $(TESTHARNESS)
$(CXX) util/log_write_bench.o $(LIBOBJECTS) $(TESTHARNESS) $(EXEC_LDFLAGS) -o $@ $(LDFLAGS) $(COVERAGEFLAGS) -pg

1334
db/db_iter_test.cc
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File diff suppressed because it is too large Load Diff

947
db/db_test.cc
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@ -15,7 +15,6 @@
#include <utility>
#include "db/dbformat.h"
#include "db/db_iter.h"
#include "db/db_impl.h"
#include "db/filename.h"
#include "db/version_set.h"
@ -1164,952 +1163,6 @@ TEST(DBTest, ReadOnlyDB) {
delete iter;
}
class TestIterator : public Iterator {
public:
explicit TestIterator(const Comparator* comparator)
: initialized_(false),
valid_(false),
sequence_number_(0),
iter_(0),
cmp(comparator) {}
void AddMerge(std::string key, std::string value) {
Add(key, kTypeMerge, value);
}
void AddDeletion(std::string key) { Add(key, kTypeDeletion, std::string()); }
void AddPut(std::string key, std::string value) {
Add(key, kTypeValue, value);
}
void Add(std::string key, ValueType type, std::string value) {
valid_ = true;
ParsedInternalKey internal_key(key, sequence_number_++, type);
data_.push_back(std::pair<std::string, std::string>(std::string(), value));
AppendInternalKey(&data_.back().first, internal_key);
}
// 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 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();
}
private:
bool initialized_;
bool valid_;
size_t sequence_number_;
size_t iter_;
InternalKeyComparator cmp;
std::vector<std::pair<std::string, std::string>> data_;
};
TEST(DBTest, DBIteratorPrevNext) {
Options options;
TestIterator internal_iter(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();
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 10);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 10);
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());
}
{
Options options;
TestIterator internal_iter(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();
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 2);
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");
}
{
Options options;
TestIterator internal_iter(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();
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 10);
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");
}
}
TEST(DBTest, DBIteratorEmpty) {
Options options = CurrentOptions();
TestIterator internal_iter(BytewiseComparator());
internal_iter.Finish();
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 0);
db_iter->SeekToLast();
ASSERT_TRUE(!db_iter->Valid());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 0);
db_iter->SeekToFirst();
ASSERT_TRUE(!db_iter->Valid());
}
}
TEST(DBTest, DBIteratorUseSkipCountSkips) {
Options options = CurrentOptions();
options.statistics = rocksdb::CreateDBStatistics();
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
TestIterator internal_iter(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();
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 2);
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), 1);
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), 2);
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), 3);
db_iter->Prev();
ASSERT_TRUE(!db_iter->Valid());
ASSERT_EQ(TestGetTickerCount(options, NUMBER_OF_RESEEKS_IN_ITERATION), 3);
}
TEST(DBTest, DBIteratorUseSkip) {
Options options = CurrentOptions();
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
{
TestIterator internal_iter(BytewiseComparator());
internal_iter.AddMerge("b", "merge_1");
internal_iter.AddMerge("a", "merge_2");
for (size_t i = 0; i < 200; ++i) {
internal_iter.AddPut("c", std::to_string(i));
}
internal_iter.Finish();
for (size_t i = 0; i < 200; ++i) {
options.statistics = rocksdb::CreateDBStatistics();
auto db_iter = NewDBIterator(env_, options, BytewiseComparator(),
&internal_iter, i + 2);
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "c");
ASSERT_EQ(db_iter->value().ToString(), std::to_string(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());
}
}
{
TestIterator internal_iter(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();
for (size_t i = 0; i < 200; ++i) {
auto db_iter = NewDBIterator(env_, options, BytewiseComparator(),
&internal_iter, i + 2);
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());
}
{
auto db_iter = NewDBIterator(env_, options, BytewiseComparator(),
&internal_iter, 202);
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());
}
}
{
TestIterator internal_iter(BytewiseComparator());
for (size_t i = 0; i < 200; ++i) {
internal_iter.AddDeletion("c");
}
internal_iter.AddPut("c", "200");
internal_iter.Finish();
for (size_t i = 0; i < 200; ++i) {
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, i);
db_iter->SeekToLast();
ASSERT_TRUE(!db_iter->Valid());
db_iter->SeekToFirst();
ASSERT_TRUE(!db_iter->Valid());
}
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 200);
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());
}
{
TestIterator internal_iter(BytewiseComparator());
internal_iter.AddMerge("b", "merge_1");
internal_iter.AddMerge("a", "merge_2");
for (size_t i = 0; i < 200; ++i) {
internal_iter.AddPut("d", std::to_string(i));
}
for (size_t i = 0; i < 200; ++i) {
internal_iter.AddPut("c", std::to_string(i));
}
internal_iter.Finish();
for (size_t i = 0; i < 200; ++i) {
auto db_iter = NewDBIterator(env_, options, BytewiseComparator(),
&internal_iter, i + 2);
db_iter->SeekToLast();
ASSERT_TRUE(db_iter->Valid());
ASSERT_EQ(db_iter->key().ToString(), "d");
ASSERT_EQ(db_iter->value().ToString(), std::to_string(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());
}
}
{
TestIterator internal_iter(BytewiseComparator());
internal_iter.AddMerge("b", "b");
internal_iter.AddMerge("a", "a");
for (size_t i = 0; i < 200; ++i) {
internal_iter.AddMerge("c", std::to_string(i));
}
internal_iter.Finish();
for (size_t i = 0; i < 200; ++i) {
auto db_iter = NewDBIterator(env_, options, BytewiseComparator(),
&internal_iter, i + 2);
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 += "," + std::to_string(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(DBTest, DBIterator) {
Options options = CurrentOptions();
options.merge_operator = MergeOperators::CreateFromStringId("stringappend");
TestIterator internal_iter(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();
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 1);
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");
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 0);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 2);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 4);
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());
}
{
TestIterator internal_iter(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();
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 0);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 1);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 2);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 3);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 4);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 5);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 6);
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());
}
}
{
TestIterator internal_iter(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();
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 0);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 1);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 2);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 3);
db_iter->SeekToLast();
ASSERT_TRUE(!db_iter->Valid());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 4);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 5);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 6);
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());
}
}
{
TestIterator internal_iter(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();
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 0);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 2);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 4);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 5);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 6);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 7);
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());
}
{
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 9);
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());
}
{
auto db_iter = NewDBIterator(env_, options, BytewiseComparator(),
&internal_iter, 13);
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());
}
{
auto db_iter = NewDBIterator(env_, options, BytewiseComparator(),
&internal_iter, 14);
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());
}
}
{
Options options = CurrentOptions();
TestIterator internal_iter(BytewiseComparator());
internal_iter.AddDeletion("a");
internal_iter.AddPut("a", "0");
internal_iter.AddPut("b", "0");
internal_iter.Finish();
auto db_iter =
NewDBIterator(env_, options, BytewiseComparator(), &internal_iter, 10);
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");
}
}
// Make sure that when options.block_cache is set, after a new table is
// created its index/filter blocks are added to block cache.
TEST(DBTest, IndexAndFilterBlocksOfNewTableAddedToCache) {

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