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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/searchlib/memoryindex/field_index_remover.h>
#include <vespa/searchlib/memoryindex/i_field_index_remove_listener.h>
#include <vespa/searchlib/memoryindex/word_store.h>
#include <vespa/vespalib/gtest/gtest.h>
#include <vespa/vespalib/test/insertion_operators.h>
#include <algorithm>
#include <vespa/log/log.h>
LOG_SETUP("document_remover_test");
using namespace search;
using namespace search::memoryindex;
struct WordFieldPair {
vespalib::string _word;
uint32_t _fieldId;
WordFieldPair(vespalib::stringref word, uint32_t fieldId) noexcept
: _word(word), _fieldId(fieldId)
{}
bool operator<(const WordFieldPair &rhs) const noexcept {
if (_word != rhs._word) {
return _word < rhs._word;
}
return _fieldId < rhs._fieldId;
}
};
using WordFieldVector = std::vector<WordFieldPair>;
std::ostream &
operator<<(std::ostream &os, const WordFieldPair &val)
{
os << "{" << val._word << "," << val._fieldId << "}";
return os;
}
struct MockRemoveListener : public IFieldIndexRemoveListener {
WordFieldVector _words;
uint32_t _expDocId;
uint32_t _fieldId;
virtual void remove(const vespalib::stringref word, uint32_t docId) override {
EXPECT_EQ(_expDocId, docId);
_words.emplace_back(word, _fieldId);
}
void reset(uint32_t expDocId) {
_words.clear();
_expDocId = expDocId;
}
vespalib::string getWords() {
std::sort(_words.begin(), _words.end());
std::ostringstream oss;
oss << _words;
return oss.str();
}
void setFieldId(uint32_t fieldId) { _fieldId = fieldId; }
};
struct FieldIndexRemoverTest : public ::testing::Test {
MockRemoveListener _listener;
std::vector<std::unique_ptr<WordStore>> _wordStores;
std::vector<std::map<vespalib::string, vespalib::datastore::EntryRef>> _wordToRefMaps;
std::vector<std::unique_ptr<FieldIndexRemover>> _removers;
FieldIndexRemoverTest();
~FieldIndexRemoverTest() override;
vespalib::datastore::EntryRef getWordRef(const vespalib::string &word, uint32_t fieldId) {
auto &wordToRefMap = _wordToRefMaps[fieldId];
WordStore &wordStore = *_wordStores[fieldId];
auto itr = wordToRefMap.find(word);
if (itr == wordToRefMap.end()) {
vespalib::datastore::EntryRef ref = wordStore.addWord(word);
wordToRefMap[word] = ref;
return ref;
}
return itr->second;
}
FieldIndexRemoverTest &insert(const vespalib::string &word, uint32_t fieldId, uint32_t docId) {
assert(fieldId < _wordStores.size());
_removers[fieldId]->insert(getWordRef(word, fieldId), docId);
return *this;
}
void flush() {
for (auto &remover : _removers) {
remover->flush();
}
}
vespalib::string remove(uint32_t docId) {
_listener.reset(docId);
uint32_t fieldId = 0;
for (auto &remover : _removers) {
_listener.setFieldId(fieldId);
remover->remove(docId, _listener);
++fieldId;
}
return _listener.getWords();
}
};
FieldIndexRemoverTest::FieldIndexRemoverTest()
: _listener(),
_wordStores(),
_wordToRefMaps(),
_removers()
{
uint32_t numFields = 4;
for (uint32_t fieldId = 0; fieldId < numFields; ++fieldId) {
_wordStores.push_back(std::make_unique<WordStore>());
_removers.push_back(std::make_unique<FieldIndexRemover>(*_wordStores.back()));
}
_wordToRefMaps.resize(numFields);
}
FieldIndexRemoverTest::~FieldIndexRemoverTest() = default;
TEST_F(FieldIndexRemoverTest, word_field_id_pairs_for_multiple_doc_ids_can_be_inserted)
{
insert("a", 1, 10).insert("a", 1, 20).insert("a", 1, 30);
insert("a", 2, 10).insert("a", 2, 20);
insert("b", 1, 20).insert("b", 1, 30);
insert("b", 2, 10).insert("b", 2, 30);
insert("c", 1, 10);
insert("c", 2, 20);
insert("c", 3, 30);
flush();
EXPECT_EQ("[{a,1},{a,2},{b,2},{c,1}]", remove(10));
EXPECT_EQ("[{a,1},{a,2},{b,1},{c,2}]", remove(20));
EXPECT_EQ("[{a,1},{b,1},{b,2},{c,3}]", remove(30));
}
TEST_F(FieldIndexRemoverTest, we_can_insert_after_flush)
{
insert("a", 1, 10).insert("b", 1, 10);
flush();
insert("b", 1, 20).insert("b", 2, 20);
flush();
EXPECT_EQ("[{a,1},{b,1}]", remove(10));
EXPECT_EQ("[{b,1},{b,2}]", remove(20));
}
GTEST_MAIN_RUN_ALL_TESTS()
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