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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/searchlib/query/streaming/equiv_query_node.h>
#include <vespa/searchlib/fef/matchdata.h>
#include <vespa/searchlib/fef/simpletermdata.h>
#include <vespa/searchlib/fef/test/indexenvironment.h>
#include <vespa/searchlib/query/streaming/phrase_query_node.h>
#include <vespa/searchlib/query/streaming/query.h>
#include <vespa/searchlib/query/streaming/queryterm.h>
#include <vespa/searchlib/query/tree/querybuilder.h>
#include <vespa/searchlib/query/tree/simplequery.h>
#include <vespa/searchlib/query/tree/stackdumpcreator.h>
#include <vespa/vespalib/gtest/gtest.h>
using search::fef::MatchData;
using search::fef::SimpleTermData;
using search::fef::TermFieldHandle;
using search::fef::TermFieldMatchDataPosition;
using search::fef::test::IndexEnvironment;
using search::query::QueryBuilder;
using search::query::Node;
using search::query::SimpleQueryNodeTypes;
using search::query::StackDumpCreator;
using search::query::Weight;
using search::streaming::EquivQueryNode;
using search::streaming::HitList;
using search::streaming::PhraseQueryNode;
using search::streaming::Query;
using search::streaming::QueryNodeResultFactory;
using search::streaming::QueryTerm;
using search::streaming::QueryTermList;
class AllowRewrite : public QueryNodeResultFactory
{
public:
bool allow_float_terms_rewrite(vespalib::stringref) const noexcept override { return true; }
};
class EquivQueryNodeTest : public ::testing::Test
{
public:
EquivQueryNodeTest();
~EquivQueryNodeTest();
void assert_tfmd_pos(const vespalib::string label,
const TermFieldMatchDataPosition &tfmd_pos,
uint32_t exp_element_id,
uint32_t exp_position,
int32_t exp_element_weight,
uint32_t exp_element_length);
vespalib::string make_simple_equiv_stack_dump();
};
EquivQueryNodeTest::EquivQueryNodeTest()
: ::testing::Test()
{
}
EquivQueryNodeTest::~EquivQueryNodeTest() = default;
void
EquivQueryNodeTest::assert_tfmd_pos(const vespalib::string label,
const TermFieldMatchDataPosition &tfmd_pos,
uint32_t exp_element_id,
uint32_t exp_position,
int32_t exp_element_weight,
uint32_t exp_element_length)
{
SCOPED_TRACE(label);
EXPECT_EQ(exp_element_id, tfmd_pos.getElementId());
EXPECT_EQ(exp_position, tfmd_pos.getPosition());
EXPECT_EQ(exp_element_weight, tfmd_pos.getElementWeight());
EXPECT_EQ(exp_element_length, tfmd_pos.getElementLen());
}
vespalib::string
EquivQueryNodeTest::make_simple_equiv_stack_dump()
{
QueryBuilder<SimpleQueryNodeTypes> builder;
builder.addEquiv(3, 0, Weight(0));
{
builder.addStringTerm("2", "", 0, Weight(0));
builder.addStringTerm("2.5", "", 0, Weight(0));
builder.addStringTerm("3", "", 0, Weight(0));
}
Node::UP node = builder.build();
return StackDumpCreator::create(*node);
}
TEST_F(EquivQueryNodeTest, test_equiv_evaluate_and_unpack)
{
auto stack_dump = make_simple_equiv_stack_dump();
QueryNodeResultFactory empty;
Query q(empty, stack_dump);
auto& eqn = dynamic_cast<EquivQueryNode&>(q.getRoot());
auto& terms = eqn.get_terms();
EXPECT_EQ(3, terms.size());
for (auto& qt : terms) {
qt->resizeFieldId(1);
}
/*
* Populate hit lists in query terms, emulating the result of
* having performed a streaming search.
*/
constexpr uint32_t field0 = 0;
constexpr uint32_t field1 = 1;
constexpr uint32_t elem0 = 0;
constexpr uint32_t elem1 = 1;
constexpr int32_t weight1 = 1;
constexpr int32_t weight2 = 2;
constexpr uint32_t pos5 = 5;
constexpr uint32_t pos6 = 6;
constexpr uint32_t pos3 = 3;
constexpr uint32_t pos4 = 4;
constexpr uint32_t field0_len = 100;
constexpr uint32_t field1_len = 200;
constexpr uint32_t field0_element0_len = 10;
constexpr uint32_t field0_element1_len = 30;
constexpr uint32_t field1_element0_len = 31;
// field 0
terms[0]->add(field0, elem0, weight1, pos5);
terms[1]->add(field0, elem0, weight1, pos6);
terms[2]->add(field0, elem1, weight1, pos3);
// field 1
terms[1]->add(field1, elem0, weight1, pos4);
terms[2]->add(field1, elem0, weight2, pos4);
terms[0]->set_element_length(0, field0_element0_len);
terms[1]->set_element_length(0, field0_element0_len);
terms[1]->set_element_length(1, field1_element0_len);
terms[2]->set_element_length(0, field0_element1_len);
terms[2]->set_element_length(1, field1_element0_len);
/*
* evaluateHits() should get the union of the hits for each query term
* but without duplicates.
*/
HitList hits;
eqn.evaluateHits(hits);
auto exp_hits = HitList{{field0,elem0,weight1,pos5},{field0,elem0,weight1,pos6},{field0,elem1,weight1,pos3},{field1,elem0,weight2,pos4}};
exp_hits[0].set_element_length(field0_element0_len);
exp_hits[1].set_element_length(field0_element0_len);
exp_hits[2].set_element_length(field0_element1_len);
exp_hits[3].set_element_length(field1_element0_len);
ASSERT_EQ(exp_hits, hits);
EXPECT_TRUE(eqn.evaluate());
/*
* Verify that unpack_match_data() gives the expected term field
* match data information.
*/
SimpleTermData td;
constexpr TermFieldHandle handle0 = 27;
constexpr TermFieldHandle handle1 = 29;
constexpr TermFieldHandle handle_max = std::max(handle0, handle1);
td.addField(0).setHandle(handle0);
td.addField(1).setHandle(handle1);
terms[0]->resizeFieldId(field0);
terms[0]->getFieldInfo(field0).setFieldLength(field0_len);
terms[1]->resizeFieldId(field1);
terms[1]->getFieldInfo(field0).setFieldLength(field0_len);
terms[1]->getFieldInfo(field1).setFieldLength(field1_len);
terms[2]->resizeFieldId(field1);
terms[2]->getFieldInfo(field0).setFieldLength(field0_len);
terms[2]->getFieldInfo(field1).setFieldLength(field1_len);
auto md = MatchData::makeTestInstance(handle_max + 1, handle_max + 1);
auto tfmd0 = md->resolveTermField(handle0);
auto tfmd1 = md->resolveTermField(handle1);
tfmd0->setNeedInterleavedFeatures(true);
tfmd1->setNeedInterleavedFeatures(true);
IndexEnvironment ie;
eqn.unpack_match_data(2, td, *md, ie);
EXPECT_EQ(2, tfmd0->getDocId());
EXPECT_EQ(3, tfmd0->getNumOccs());
EXPECT_EQ(3, tfmd0->end() - tfmd0->begin());
auto itr = tfmd0->begin();
assert_tfmd_pos("tmfd0[0]", *itr, elem0, pos5, weight1, field0_element0_len);
++itr;
assert_tfmd_pos("tmfd0[1]", *itr, elem0, pos6, weight1, field0_element0_len);
++itr;
assert_tfmd_pos("tmfd0[2]", *itr, elem1, pos3, weight1, field0_element1_len);
EXPECT_EQ(field0_len, tfmd0->getFieldLength());
EXPECT_EQ(2, tfmd1->getDocId());
EXPECT_EQ(1, tfmd1->getNumOccs());
EXPECT_EQ(1, tfmd1->end() - tfmd1->begin());
itr = tfmd1->begin();
assert_tfmd_pos("tmfd1[0]", *itr, elem0, pos4, weight2, field1_element0_len);
EXPECT_EQ(field1_len, tfmd1->getFieldLength());
}
TEST_F(EquivQueryNodeTest, test_equiv_flattening)
{
auto stack_dump = make_simple_equiv_stack_dump();
AllowRewrite allow_rewrite;
Query q(allow_rewrite, stack_dump);
auto& eqn = dynamic_cast<EquivQueryNode&>(q.getRoot());
auto& terms = eqn.get_terms();
// Query is flattened to equiv("2", "2.5", phrase("2","5"), "3")
EXPECT_EQ(4, terms.size());
EXPECT_EQ("2", terms[0]->getTermString());
EXPECT_EQ("2.5", terms[1]->getTermString());
auto phrase = dynamic_cast<PhraseQueryNode*>(terms[2].get());
EXPECT_NE(phrase, nullptr);
EXPECT_EQ(2, phrase->get_terms().size());
EXPECT_EQ("2", phrase->get_terms()[0]->getTermString());
EXPECT_EQ("5", phrase->get_terms()[1]->getTermString());
EXPECT_EQ("3", terms[3]->getTermString());
}
GTEST_MAIN_RUN_ALL_TESTS()
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