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