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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
// Unit tests for predicate_zstar_compressed_posting_list.
#include <vespa/searchlib/predicate/predicate_zstar_compressed_posting_list.h>
#include <vespa/searchlib/predicate/predicate_index.h>
#include <vespa/vespalib/btree/btreeroot.hpp>
#include <vespa/vespalib/btree/btreeiterator.hpp>
#include <vespa/vespalib/btree/btreestore.hpp>
#include <vespa/vespalib/testkit/testapp.h>
#include <vespa/log/log.h>
LOG_SETUP("predicate_zstar_compressed_posting_list_test");
using namespace search;
using namespace search::predicate;
using std::vector;
namespace {
struct DummyDocIdLimitProvider : public DocIdLimitProvider {
virtual uint32_t getDocIdLimit() const override { return 10000; }
virtual uint32_t getCommittedDocIdLimit() const override { return 10000; }
};
vespalib::GenerationHandler generation_handler;
vespalib::GenerationHolder generation_holder;
DummyDocIdLimitProvider limit_provider;
SimpleIndexConfig config;
const uint64_t hash = 0x123;
TEST("require that empty posting list starts at 0.") {
PredicateIndex index(generation_holder, limit_provider, config, 8);
vespalib::datastore::EntryRef ref;
PredicateZstarCompressedPostingList<PredicateIndex::BTreeIterator>
posting_list(index.getIntervalStore(), index.getIntervalIndex().getBTreePostingList(ref));
EXPECT_EQUAL(0u, posting_list.getDocId());
EXPECT_EQUAL(0u, posting_list.getInterval());
EXPECT_FALSE(posting_list.next(0));
}
TEST("require that posting list can iterate.") {
PredicateIndex index(generation_holder, limit_provider, config, 8);
const auto &interval_index = index.getIntervalIndex();
vector<vector<Interval>> intervals =
{{{0x00010000}},
{{0x00010000}, {0x0000ffff}},
{{0x00010000}, {0x00000003}, {0x00040003}, {0x00060005}}};
for (size_t i = 0; i < intervals.size(); ++i) {
PredicateTreeAnnotations annotations(1);
annotations.interval_map[hash] = intervals[i];
index.indexDocument(i + 1, annotations);
}
index.commit();
auto it = interval_index.lookup(hash);
ASSERT_TRUE(it.valid());
auto ref = it.getData();
PredicateZstarCompressedPostingList<PredicateIndex::BTreeIterator>
posting_list(index.getIntervalStore(), interval_index.getBTreePostingList(ref));
EXPECT_EQUAL(0u, posting_list.getDocId());
EXPECT_EQUAL(0u, posting_list.getInterval());
EXPECT_TRUE(posting_list.next(0));
EXPECT_EQUAL(1u, posting_list.getDocId());
EXPECT_EQUAL(0x00010000u, posting_list.getInterval());
ASSERT_TRUE(posting_list.nextInterval());
EXPECT_EQUAL(0x00020001u, posting_list.getInterval());
ASSERT_FALSE(posting_list.nextInterval());
EXPECT_TRUE(posting_list.next(1));
EXPECT_EQUAL(2u, posting_list.getDocId());
EXPECT_EQUAL(0x00010000u, posting_list.getInterval());
ASSERT_TRUE(posting_list.nextInterval());
EXPECT_EQUAL(0xffff0001u, posting_list.getInterval());
ASSERT_FALSE(posting_list.nextInterval());
ASSERT_TRUE(posting_list.next(2));
EXPECT_EQUAL(3u, posting_list.getDocId());
EXPECT_EQUAL(0x00010000u, posting_list.getInterval());
ASSERT_TRUE(posting_list.nextInterval());
EXPECT_EQUAL(0x00030001u, posting_list.getInterval());
ASSERT_TRUE(posting_list.nextInterval());
EXPECT_EQUAL(0x00040003u, posting_list.getInterval());
ASSERT_TRUE(posting_list.nextInterval());
EXPECT_EQUAL(0x00050004u, posting_list.getInterval());
ASSERT_TRUE(posting_list.nextInterval());
EXPECT_EQUAL(0x00060005u, posting_list.getInterval());
ASSERT_TRUE(posting_list.nextInterval());
EXPECT_EQUAL(0x00070006u, posting_list.getInterval());
ASSERT_FALSE(posting_list.nextInterval());
ASSERT_FALSE(posting_list.next(4));
}
} // namespace
TEST_MAIN() { TEST_RUN_ALL(); }
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