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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/searchlib/docstore/logdocumentstore.h>
#include <vespa/searchlib/docstore/value.h>
#include <vespa/vespalib/stllike/cache_stats.h>
#include <vespa/document/repo/documenttyperepo.h>
#include <vespa/document/fieldvalue/document.h>
using namespace search;
using CompressionConfig = vespalib::compression::CompressionConfig;
document::DocumentTypeRepo repo;
struct NullDataStore : IDataStore {
NullDataStore() : IDataStore("") {}
~NullDataStore() override;
ssize_t read(uint32_t, vespalib::DataBuffer &) const override { return 0; }
void read(const LidVector &, IBufferVisitor &) const override { }
void write(uint64_t, uint32_t, const void *, size_t) override {}
void remove(uint64_t, uint32_t) override {}
void flush(uint64_t) override {}
uint64_t initFlush(uint64_t syncToken) override { return syncToken; }
size_t memoryUsed() const override { return 0; }
size_t memoryMeta() const override { return 0; }
size_t getDiskFootprint() const override { return 0; }
size_t getDiskBloat() const override { return 0; }
size_t getMaxSpreadAsBloat() const override { return 0; }
uint64_t lastSyncToken() const override { return 0; }
uint64_t tentativeLastSyncToken() const override { return 0; }
vespalib::system_time getLastFlushTime() const override { return vespalib::system_time(); }
void accept(IDataStoreVisitor &, IDataStoreVisitorProgress &, bool) override { }
double getVisitCost() const override { return 1.0; }
DataStoreStorageStats getStorageStats() const override {
return DataStoreStorageStats(0, 0, 0.0, 0, 0, 0);
}
vespalib::MemoryUsage getMemoryUsage() const override { return vespalib::MemoryUsage(); }
std::vector<DataStoreFileChunkStats>
getFileChunkStats() const override {
std::vector<DataStoreFileChunkStats> result;
return result;
}
void compactLidSpace(uint32_t wantedDocLidLimit) override { (void) wantedDocLidLimit; }
bool canShrinkLidSpace() const override { return false; }
size_t getEstimatedShrinkLidSpaceGain() const override { return 0; }
void shrinkLidSpace() override {}
};
NullDataStore::~NullDataStore() = default;
TEST_FFF("require that uncache docstore lookups are counted",
DocumentStore::Config(CompressionConfig::NONE, 0),
NullDataStore(), DocumentStore(f1, f2))
{
EXPECT_EQUAL(0u, f3.getCacheStats().misses);
f3.read(1, repo);
EXPECT_EQUAL(1u, f3.getCacheStats().misses);
}
TEST_FFF("require that cached docstore lookups are counted",
DocumentStore::Config(CompressionConfig::NONE, 100000),
NullDataStore(), DocumentStore(f1, f2))
{
EXPECT_EQUAL(0u, f3.getCacheStats().misses);
f3.read(1, repo);
EXPECT_EQUAL(1u, f3.getCacheStats().misses);
}
TEST("require that DocumentStore::Config equality operator detects inequality") {
using C = DocumentStore::Config;
EXPECT_TRUE(C() == C());
EXPECT_TRUE(C(CompressionConfig::NONE, 100000) == C(CompressionConfig::NONE, 100000));
EXPECT_FALSE(C(CompressionConfig::NONE, 100000) == C(CompressionConfig::NONE, 100001));
EXPECT_FALSE(C(CompressionConfig::NONE, 100000) == C(CompressionConfig::LZ4, 100000));
}
TEST("require that LogDocumentStore::Config equality operator detects inequality") {
using C = LogDocumentStore::Config;
using LC = LogDataStore::Config;
using DC = DocumentStore::Config;
EXPECT_TRUE(C() == C());
EXPECT_FALSE(C() != C());
EXPECT_FALSE(C(DC(CompressionConfig::NONE, 100000), LC()) == C());
EXPECT_FALSE(C(DC(), LC().setMaxBucketSpread(7)) == C());
}
using search::docstore::Value;
vespalib::stringref S1("this is a string long enough to be compressed and is just used for sanity checking of compression"
"Adding some repeatble sequences like aaaaaaaaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbb to ensure compression"
"xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz xyz");
Value createValue(vespalib::stringref s, CompressionConfig cfg) {
Value v(7);
vespalib::DataBuffer input;
input.writeBytes(s.data(), s.size());
v.set(std::move(input), s.size(), cfg);
return v;
}
void verifyValue(vespalib::stringref s, const Value & v) {
Value::Result result = v.decompressed();
ASSERT_TRUE(result.second);
EXPECT_EQUAL(s.size(), v.getUncompressedSize());
EXPECT_EQUAL(7u, v.getSyncToken());
EXPECT_EQUAL(0, memcmp(s.data(), result.first.getData(), result.first.getDataLen()));
}
TEST("require that Value and cache entries have expected size") {
using pair = std::pair<DocumentIdT, Value>;
using Node = vespalib::hash_node<pair>;
EXPECT_EQUAL(48ul, sizeof(Value));
EXPECT_EQUAL(56ul, sizeof(pair));
EXPECT_EQUAL(64ul, sizeof(Node));
}
TEST("require that Value can store uncompressed data") {
Value v = createValue(S1, CompressionConfig::NONE);
verifyValue(S1, v);
}
TEST("require that Value can be moved") {
Value v = createValue(S1, CompressionConfig::NONE);
Value m = std::move(v);
verifyValue(S1, m);
}
TEST("require that Value can be copied") {
Value v = createValue(S1, CompressionConfig::NONE);
Value copy(v);
verifyValue(S1, v);
verifyValue(S1, copy);
}
TEST("require that Value can store lz4 compressed data") {
Value v = createValue(S1, CompressionConfig::LZ4);
EXPECT_EQUAL(CompressionConfig::LZ4, v.getCompression());
EXPECT_EQUAL(164u, v.size());
verifyValue(S1, v);
}
TEST("require that Value can store zstd compressed data") {
Value v = createValue(S1, CompressionConfig::ZSTD);
EXPECT_EQUAL(CompressionConfig::ZSTD, v.getCompression());
EXPECT_EQUAL(128u, v.size());
verifyValue(S1, v);
}
TEST("require that Value is shrunk to fit compressed data") {
Value v = createValue(S1, CompressionConfig::ZSTD);
EXPECT_EQUAL(CompressionConfig::ZSTD, v.getCompression());
EXPECT_EQUAL(128u, v.size());
EXPECT_EQUAL(128u, v.capacity());
EXPECT_EQUAL(297u, v.getUncompressedSize());
verifyValue(S1, v);
}
TEST("require that Value can detect if output not equal to input") {
Value v = createValue(S1, CompressionConfig::NONE);
const_cast<uint8_t *>(static_cast<const uint8_t *>(v.get()))[8] ^= 0xff;
EXPECT_FALSE(v.decompressed().second);
}
TEST_MAIN() { TEST_RUN_ALL(); }
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