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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
// Unit tests for sourceselector.
#include <vespa/searchlib/attribute/fixedsourceselector.h>
#include <vespa/searchlib/index/dummyfileheadercontext.h>
#include <vespa/vespalib/testkit/testapp.h>
#include <vespa/fastos/file.h>
#include <vespa/log/log.h>
LOG_SETUP("sourceselector_test");
using std::unique_ptr;
using std::string;
using namespace search;
using namespace search::queryeval;
using search::common::FileHeaderContext;
using search::index::DummyFileHeaderContext;
namespace {
template <typename T, size_t N> size_t arraysize(const T (&)[N]) { return N; }
const uint32_t maxDocId = 4096;
struct DocSource { uint32_t docId; uint8_t source; };
const DocSource docs[] = { {0,1}, {1, 0}, {2, 2}, {4, 3}, {8, 9}, {16, 178},
{32, 1}, {64, 2}, {128, 3}, {256,4}, {512, 2},
{1024, 1}, {2048,5}, {maxDocId,1} };
const string index_dir = "test_data";
const string base_file_name = "test_data/sourcelist";
const string base_file_name2 = "test_data/sourcelist2";
const uint32_t default_source = 7;
const uint32_t base_id = 42;
class Test : public vespalib::TestApp
{
public:
int Main() override;
private:
void testSourceSelector(const DocSource *docSource, size_t sz, uint8_t defaultSource, ISourceSelector & selector);
void testFixed(const DocSource *docSource, size_t sz);
template <typename SelectorType>
void requireThatSelectorCanCloneAndSubtract();
void requireThatSelectorCanCloneAndSubtract();
template <typename SelectorType>
void requireThatSelectorCanSaveAndLoad();
void requireThatSelectorCanSaveAndLoad();
template <typename SelectorType>
void requireThatCompleteSourceRangeIsHandled();
void requireThatCompleteSourceRangeIsHandled();
template <typename SelectorType>
void requireThatSourcesAreCountedCorrectly();
void requireThatSourcesAreCountedCorrectly();
};
int
Test::Main()
{
TEST_INIT("sourceselector_test");
if (_argc > 0) {
DummyFileHeaderContext::setCreator(_argv[0]);
}
testFixed(docs, arraysize(docs));
TEST_DO(requireThatSelectorCanCloneAndSubtract());
TEST_DO(requireThatSelectorCanSaveAndLoad());
TEST_DO(requireThatCompleteSourceRangeIsHandled());
TEST_DO(requireThatSourcesAreCountedCorrectly());
TEST_DONE();
}
void setSources(ISourceSelector &selector) {
for (size_t i = 0; i < arraysize(docs); ++i) {
selector.setSource(docs[i].docId, docs[i].source);
}
}
void Test::testFixed(const DocSource *docSource, size_t sz)
{
FixedSourceSelector selector(default_source, base_file_name, 10);
EXPECT_EQUAL(default_source, selector.getDefaultSource());
EXPECT_EQUAL(10u, selector.getDocIdLimit());
// EXPECT_EQUAL(default_source, selector.createIterator()->getSource(maxDocId + 1));
setSources(selector);
testSourceSelector(docSource, sz, selector.getDefaultSource(), selector);
EXPECT_EQUAL(maxDocId+1, selector.getDocIdLimit());
}
void Test::testSourceSelector(const DocSource *docSource, size_t sz,
uint8_t defaultSource, ISourceSelector &selector)
{
{
auto it(selector.createIterator());
for (size_t i = 0; i < sz; ++i) {
EXPECT_EQUAL(docSource[i].source, it->getSource(docSource[i].docId));
}
}
{
auto it(selector.createIterator());
for (size_t i = 0, j = 0; i <= docSource[sz - 1].docId; ++i) {
if (i != docSource[j].docId) {
EXPECT_EQUAL(defaultSource, it->getSource(i));
} else {
EXPECT_EQUAL(docSource[j].source, it->getSource(i));
++j;
}
}
}
}
template <typename SelectorType>
void
Test::requireThatSelectorCanCloneAndSubtract()
{
SelectorType selector(default_source, base_file_name);
setSources(selector);
selector.setBaseId(base_id);
const uint32_t diff = 3;
typename SelectorType::UP
new_selector(selector.cloneAndSubtract(base_file_name2, diff));
EXPECT_EQUAL(default_source - diff, new_selector->getDefaultSource());
EXPECT_EQUAL(base_id + diff, new_selector->getBaseId());
EXPECT_EQUAL(maxDocId+1, new_selector->getDocIdLimit());
auto it(new_selector->createIterator());
for(size_t i = 0; i < arraysize(docs); ++i) {
if (docs[i].source > diff) {
EXPECT_EQUAL(docs[i].source - diff, it->getSource(docs[i].docId));
} else {
EXPECT_EQUAL(0, it->getSource(docs[i].docId));
}
}
}
void
Test::requireThatSelectorCanCloneAndSubtract()
{
requireThatSelectorCanCloneAndSubtract<FixedSourceSelector>();
}
template <typename SelectorType>
void
Test::requireThatSelectorCanSaveAndLoad()
{
SelectorType selector(default_source, base_file_name2);
setSources(selector);
selector.setBaseId(base_id);
selector.setSource(maxDocId + 1, default_source);
FastOS_FileInterface::EmptyAndRemoveDirectory(index_dir.c_str());
FastOS_FileInterface::MakeDirIfNotPresentOrExit(index_dir.c_str());
SourceSelector::SaveInfo::UP save_info =
selector.extractSaveInfo(base_file_name);
save_info->save(TuneFileAttributes(), DummyFileHeaderContext());
typename SelectorType::UP
selector2(SelectorType::load(base_file_name));
testSourceSelector(docs, arraysize(docs), default_source, *selector2);
EXPECT_EQUAL(base_id, selector2->getBaseId());
EXPECT_EQUAL(maxDocId + 2, selector2->getDocIdLimit());
FastOS_FileInterface::EmptyAndRemoveDirectory(index_dir.c_str());
}
void
Test::requireThatSelectorCanSaveAndLoad()
{
requireThatSelectorCanSaveAndLoad<FixedSourceSelector>();
}
template <typename SelectorType>
void
Test::requireThatCompleteSourceRangeIsHandled()
{
SelectorType selector(default_source, base_file_name);
for (uint32_t i = 0; i < ISourceSelector::SOURCE_LIMIT; ++i) {
selector.setSource(i, i);
}
auto itr = selector.createIterator();
for (uint32_t i = 0; i < ISourceSelector::SOURCE_LIMIT; ++i) {
EXPECT_EQUAL((queryeval::Source)i, itr->getSource(i));
}
}
void
Test::requireThatCompleteSourceRangeIsHandled()
{
requireThatCompleteSourceRangeIsHandled<FixedSourceSelector>();
}
template <typename SelectorType>
void
Test::requireThatSourcesAreCountedCorrectly()
{
SelectorType selector(default_source, base_file_name);
for (uint32_t i = 0; i < 256; ++i) {
selector.setSource(i, i%16);
}
SourceSelector::Histogram hist = selector.getDistribution();
for (uint32_t i = 0; i < 16; ++i) {
EXPECT_EQUAL(16u, hist[i]);
}
for (uint32_t i = 16; i < 256; ++i) {
EXPECT_EQUAL(0u, hist[i]);
}
}
void
Test::requireThatSourcesAreCountedCorrectly()
{
requireThatSourcesAreCountedCorrectly<FixedSourceSelector>();
}
} // namespace
TEST_APPHOOK(Test);
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