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version_set_test.cc
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "db/version_set.h"
#include "util/logging.h"
#include "util/testharness.h"
#include "util/testutil.h"
namespace leveldb {
class FindFileTest {
public:
FindFileTest() : disjoint_sorted_files_(true) {}
~FindFileTest() {
for (int i = 0; i < files_.size(); i++) {
delete files_[i];
}
}
void Add(const char* smallest, const char* largest,
SequenceNumber smallest_seq = 100,
SequenceNumber largest_seq = 100) {
FileMetaData* f = new FileMetaData;
f->number = files_.size() + 1;
f->smallest = InternalKey(smallest, smallest_seq, kTypeValue);
f->largest = InternalKey(largest, largest_seq, kTypeValue);
files_.push_back(f);
}
int Find(const char* key) {
InternalKey target(key, 100, kTypeValue);
InternalKeyComparator cmp(BytewiseComparator());
return FindFile(cmp, files_, target.Encode());
}
bool Overlaps(const char* smallest, const char* largest) {
InternalKeyComparator cmp(BytewiseComparator());
Slice s(smallest != nullptr ? smallest : "");
Slice l(largest != nullptr ? largest : "");
return SomeFileOverlapsRange(cmp, disjoint_sorted_files_, files_,
(smallest != nullptr ? &s : nullptr),
(largest != nullptr ? &l : nullptr));
}
bool disjoint_sorted_files_;
private:
std::vector<FileMetaData*> files_;
};
TEST(FindFileTest, Empty) {
ASSERT_EQ(0, Find("foo"));
ASSERT_TRUE(!Overlaps("a", "z"));
ASSERT_TRUE(!Overlaps(nullptr, "z"));
ASSERT_TRUE(!Overlaps("a", nullptr));
ASSERT_TRUE(!Overlaps(nullptr, nullptr));
}
TEST(FindFileTest, Single) {
Add("p", "q");
ASSERT_EQ(0, Find("a"));
ASSERT_EQ(0, Find("p"));
ASSERT_EQ(0, Find("p1"));
ASSERT_EQ(0, Find("q"));
ASSERT_EQ(1, Find("q1"));
ASSERT_EQ(1, Find("z"));
ASSERT_TRUE(!Overlaps("a", "b"));
ASSERT_TRUE(!Overlaps("z1", "z2"));
ASSERT_TRUE(Overlaps("a", "p"));
ASSERT_TRUE(Overlaps("a", "q"));
ASSERT_TRUE(Overlaps("a", "z"));
ASSERT_TRUE(Overlaps("p", "p1"));
ASSERT_TRUE(Overlaps("p", "q"));
ASSERT_TRUE(Overlaps("p", "z"));
ASSERT_TRUE(Overlaps("p1", "p2"));
ASSERT_TRUE(Overlaps("p1", "z"));
ASSERT_TRUE(Overlaps("q", "q"));
ASSERT_TRUE(Overlaps("q", "q1"));
ASSERT_TRUE(!Overlaps(nullptr, "j"));
ASSERT_TRUE(!Overlaps("r", nullptr));
ASSERT_TRUE(Overlaps(nullptr, "p"));
ASSERT_TRUE(Overlaps(nullptr, "p1"));
ASSERT_TRUE(Overlaps("q", nullptr));
ASSERT_TRUE(Overlaps(nullptr, nullptr));
}
TEST(FindFileTest, Multiple) {
Add("150", "200");
Add("200", "250");
Add("300", "350");
Add("400", "450");
ASSERT_EQ(0, Find("100"));
ASSERT_EQ(0, Find("150"));
ASSERT_EQ(0, Find("151"));
ASSERT_EQ(0, Find("199"));
ASSERT_EQ(0, Find("200"));
ASSERT_EQ(1, Find("201"));
ASSERT_EQ(1, Find("249"));
ASSERT_EQ(1, Find("250"));
ASSERT_EQ(2, Find("251"));
ASSERT_EQ(2, Find("299"));
ASSERT_EQ(2, Find("300"));
ASSERT_EQ(2, Find("349"));
ASSERT_EQ(2, Find("350"));
ASSERT_EQ(3, Find("351"));
ASSERT_EQ(3, Find("400"));
ASSERT_EQ(3, Find("450"));
ASSERT_EQ(4, Find("451"));
ASSERT_TRUE(!Overlaps("100", "149"));
ASSERT_TRUE(!Overlaps("251", "299"));
ASSERT_TRUE(!Overlaps("451", "500"));
ASSERT_TRUE(!Overlaps("351", "399"));
ASSERT_TRUE(Overlaps("100", "150"));
ASSERT_TRUE(Overlaps("100", "200"));
ASSERT_TRUE(Overlaps("100", "300"));
ASSERT_TRUE(Overlaps("100", "400"));
ASSERT_TRUE(Overlaps("100", "500"));
ASSERT_TRUE(Overlaps("375", "400"));
ASSERT_TRUE(Overlaps("450", "450"));
ASSERT_TRUE(Overlaps("450", "500"));
}
TEST(FindFileTest, MultipleNullBoundaries) {
Add("150", "200");
Add("200", "250");
Add("300", "350");
Add("400", "450");
ASSERT_TRUE(!Overlaps(nullptr, "149"));
ASSERT_TRUE(!Overlaps("451", nullptr));
ASSERT_TRUE(Overlaps(nullptr, nullptr));
ASSERT_TRUE(Overlaps(nullptr, "150"));
ASSERT_TRUE(Overlaps(nullptr, "199"));
ASSERT_TRUE(Overlaps(nullptr, "200"));
ASSERT_TRUE(Overlaps(nullptr, "201"));
ASSERT_TRUE(Overlaps(nullptr, "400"));
ASSERT_TRUE(Overlaps(nullptr, "800"));
ASSERT_TRUE(Overlaps("100", nullptr));
ASSERT_TRUE(Overlaps("200", nullptr));
ASSERT_TRUE(Overlaps("449", nullptr));
ASSERT_TRUE(Overlaps("450", nullptr));
}
TEST(FindFileTest, OverlapSequenceChecks) {
Add("200", "200", 5000, 3000);
ASSERT_TRUE(!Overlaps("199", "199"));
ASSERT_TRUE(!Overlaps("201", "300"));
ASSERT_TRUE(Overlaps("200", "200"));
ASSERT_TRUE(Overlaps("190", "200"));
ASSERT_TRUE(Overlaps("200", "210"));
}
TEST(FindFileTest, OverlappingFiles) {
Add("150", "600");
Add("400", "500");
disjoint_sorted_files_ = false;
ASSERT_TRUE(!Overlaps("100", "149"));
ASSERT_TRUE(!Overlaps("601", "700"));
ASSERT_TRUE(Overlaps("100", "150"));
ASSERT_TRUE(Overlaps("100", "200"));
ASSERT_TRUE(Overlaps("100", "300"));
ASSERT_TRUE(Overlaps("100", "400"));
ASSERT_TRUE(Overlaps("100", "500"));
ASSERT_TRUE(Overlaps("375", "400"));
ASSERT_TRUE(Overlaps("450", "450"));
ASSERT_TRUE(Overlaps("450", "500"));
ASSERT_TRUE(Overlaps("450", "700"));
ASSERT_TRUE(Overlaps("600", "700"));
}
void AddBoundaryInputs(const InternalKeyComparator& icmp,
const std::vector<FileMetaData*>& level_files,
std::vector<FileMetaData*>* compaction_files);
class AddBoundaryInputsTest {
public:
std::vector<FileMetaData*> level_files_;
std::vector<FileMetaData*> compaction_files_;
std::vector<FileMetaData*> all_files_;
InternalKeyComparator icmp_;
AddBoundaryInputsTest() : icmp_(BytewiseComparator()) {}
~AddBoundaryInputsTest() {
for (size_t i = 0; i < all_files_.size(); ++i) {
delete all_files_[i];
}
all_files_.clear();
}
FileMetaData* CreateFileMetaData(uint64_t number, InternalKey smallest,
InternalKey largest) {
FileMetaData* f = new FileMetaData();
f->number = number;
f->smallest = smallest;
f->largest = largest;
all_files_.push_back(f);
return f;
}
};
TEST(AddBoundaryInputsTest, TestEmptyFileSets) {
AddBoundaryInputs(icmp_, level_files_, &compaction_files_);
ASSERT_TRUE(compaction_files_.empty());
ASSERT_TRUE(level_files_.empty());
}
TEST(AddBoundaryInputsTest, TestEmptyLevelFiles) {
FileMetaData* f1 =
CreateFileMetaData(1, InternalKey("100", 2, kTypeValue),
InternalKey(InternalKey("100", 1, kTypeValue)));
compaction_files_.push_back(f1);
AddBoundaryInputs(icmp_, level_files_, &compaction_files_);
ASSERT_EQ(1, compaction_files_.size());
ASSERT_EQ(f1, compaction_files_[0]);
ASSERT_TRUE(level_files_.empty());
}
TEST(AddBoundaryInputsTest, TestEmptyCompactionFiles) {
FileMetaData* f1 =
CreateFileMetaData(1, InternalKey("100", 2, kTypeValue),
InternalKey(InternalKey("100", 1, kTypeValue)));
level_files_.push_back(f1);
AddBoundaryInputs(icmp_, level_files_, &compaction_files_);
ASSERT_TRUE(compaction_files_.empty());
ASSERT_EQ(1, level_files_.size());
ASSERT_EQ(f1, level_files_[0]);
}
TEST(AddBoundaryInputsTest, TestNoBoundaryFiles) {
FileMetaData* f1 =
CreateFileMetaData(1, InternalKey("100", 2, kTypeValue),
InternalKey(InternalKey("100", 1, kTypeValue)));
FileMetaData* f2 =
CreateFileMetaData(1, InternalKey("200", 2, kTypeValue),
InternalKey(InternalKey("200", 1, kTypeValue)));
FileMetaData* f3 =
CreateFileMetaData(1, InternalKey("300", 2, kTypeValue),
InternalKey(InternalKey("300", 1, kTypeValue)));
level_files_.push_back(f3);
level_files_.push_back(f2);
level_files_.push_back(f1);
compaction_files_.push_back(f2);
compaction_files_.push_back(f3);
AddBoundaryInputs(icmp_, level_files_, &compaction_files_);
ASSERT_EQ(2, compaction_files_.size());
}
TEST(AddBoundaryInputsTest, TestOneBoundaryFiles) {
FileMetaData* f1 =
CreateFileMetaData(1, InternalKey("100", 3, kTypeValue),
InternalKey(InternalKey("100", 2, kTypeValue)));
FileMetaData* f2 =
CreateFileMetaData(1, InternalKey("100", 1, kTypeValue),
InternalKey(InternalKey("200", 3, kTypeValue)));
FileMetaData* f3 =
CreateFileMetaData(1, InternalKey("300", 2, kTypeValue),
InternalKey(InternalKey("300", 1, kTypeValue)));
level_files_.push_back(f3);
level_files_.push_back(f2);
level_files_.push_back(f1);
compaction_files_.push_back(f1);
AddBoundaryInputs(icmp_, level_files_, &compaction_files_);
ASSERT_EQ(2, compaction_files_.size());
ASSERT_EQ(f1, compaction_files_[0]);
ASSERT_EQ(f2, compaction_files_[1]);
}
TEST(AddBoundaryInputsTest, TestTwoBoundaryFiles) {
FileMetaData* f1 =
CreateFileMetaData(1, InternalKey("100", 6, kTypeValue),
InternalKey(InternalKey("100", 5, kTypeValue)));
FileMetaData* f2 =
CreateFileMetaData(1, InternalKey("100", 2, kTypeValue),
InternalKey(InternalKey("300", 1, kTypeValue)));
FileMetaData* f3 =
CreateFileMetaData(1, InternalKey("100", 4, kTypeValue),
InternalKey(InternalKey("100", 3, kTypeValue)));
level_files_.push_back(f2);
level_files_.push_back(f3);
level_files_.push_back(f1);
compaction_files_.push_back(f1);
AddBoundaryInputs(icmp_, level_files_, &compaction_files_);
ASSERT_EQ(3, compaction_files_.size());
ASSERT_EQ(f1, compaction_files_[0]);
ASSERT_EQ(f3, compaction_files_[1]);
ASSERT_EQ(f2, compaction_files_[2]);
}
TEST(AddBoundaryInputsTest, TestDisjoinFilePointers) {
FileMetaData* f1 =
CreateFileMetaData(1, InternalKey("100", 6, kTypeValue),
InternalKey(InternalKey("100", 5, kTypeValue)));
FileMetaData* f2 =
CreateFileMetaData(1, InternalKey("100", 6, kTypeValue),
InternalKey(InternalKey("100", 5, kTypeValue)));
FileMetaData* f3 =
CreateFileMetaData(1, InternalKey("100", 2, kTypeValue),
InternalKey(InternalKey("300", 1, kTypeValue)));
FileMetaData* f4 =
CreateFileMetaData(1, InternalKey("100", 4, kTypeValue),
InternalKey(InternalKey("100", 3, kTypeValue)));
level_files_.push_back(f2);
level_files_.push_back(f3);
level_files_.push_back(f4);
compaction_files_.push_back(f1);
AddBoundaryInputs(icmp_, level_files_, &compaction_files_);
ASSERT_EQ(3, compaction_files_.size());
ASSERT_EQ(f1, compaction_files_[0]);
ASSERT_EQ(f4, compaction_files_[1]);
ASSERT_EQ(f3, compaction_files_[2]);
}
} // namespace leveldb
int main(int argc, char** argv) { return leveldb::test::RunAllTests(); }