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lmdbal/test/storagecursor.cpp

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#include <gtest/gtest.h>
#include "base.h"
#include "storage.h"
#include "cursor.h"
class StorageCursorTest : public ::testing::Test {
protected:
StorageCursorTest():
::testing::Test(),
table (db->getStorage<uint64_t, std::string>("table1")),
emptyTable (db->getStorage<uint64_t, std::string>("empty")) {}
~StorageCursorTest() {}
static void SetUpTestSuite() {
if (db == nullptr) {
db = new LMDBAL::Base("testBase");
db->addStorage<uint64_t, std::string>("table1");
db->addStorage<uint64_t, std::string>("empty");
db->open();
}
}
static void TearDownTestSuite() {
db->close();
db->removeDirectory();
delete db;
db = nullptr;
cursor = nullptr;
emptyCursor = nullptr;
}
static LMDBAL::Base* db;
static LMDBAL::Cursor<uint64_t, std::string>* cursor;
static LMDBAL::Cursor<uint64_t, std::string>* emptyCursor;
static LMDBAL::TransactionID transaction;
LMDBAL::Storage<uint64_t, std::string>* table;
LMDBAL::Storage<uint64_t, std::string>* emptyTable;
};
LMDBAL::Base* StorageCursorTest::db = nullptr;
LMDBAL::Cursor<uint64_t, std::string>* StorageCursorTest::cursor = nullptr;
LMDBAL::Cursor<uint64_t, std::string>* StorageCursorTest::emptyCursor = nullptr;
LMDBAL::TransactionID StorageCursorTest::transaction = nullptr;
static const std::map<uint64_t, std::string> data({
{245665783, "bothering nerds"},
{3458, "resilent pick forefront"},
{105190, "apportunity legal bat"},
{6510, "outside"},
{7438537, "damocles plush apparently rusty"},
{19373572, "local guidence"},
{138842, "forgetting tusks prepare"},
{981874, "butchered soaking pawn"},
{19302, "tanned inmate"},
{178239, "custody speaks neurotic"},
});
TEST_F(StorageCursorTest, PopulatingTheTable) {
uint32_t amount = table->addRecords(data);
EXPECT_EQ(amount, data.size());
}
TEST_F(StorageCursorTest, Creation) {
cursor = table->createCursor();
emptyCursor = emptyTable->createCursor();
EXPECT_THROW(cursor->first(), LMDBAL::CursorNotReady);
EXPECT_THROW(cursor->last(), LMDBAL::CursorNotReady);
EXPECT_THROW(cursor->next(), LMDBAL::CursorNotReady);
EXPECT_THROW(cursor->prev(), LMDBAL::CursorNotReady);
EXPECT_THROW(cursor->current(), LMDBAL::CursorNotReady);
cursor->open();
}
TEST_F(StorageCursorTest, FirstPrivate) {
std::pair<uint64_t, std::string> element = cursor->first();
std::map<uint64_t, std::string>::const_iterator reference = data.begin();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
TEST_F(StorageCursorTest, NextPrivate) {
std::map<uint64_t, std::string>::const_iterator reference = data.begin();
reference++;
for (; reference != data.end(); ++reference) {
std::pair<uint64_t, std::string> element = cursor->next();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
EXPECT_THROW(cursor->next(), LMDBAL::NotFound);
std::pair<uint64_t, std::string> element = cursor->first();
reference = data.begin();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
TEST_F(StorageCursorTest, LastPrivate) {
std::pair<uint64_t, std::string> element = cursor->last();
std::map<uint64_t, std::string>::const_reverse_iterator reference = data.rbegin();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
TEST_F(StorageCursorTest, PrevPrivate) {
std::map<uint64_t, std::string>::const_reverse_iterator reference = data.rbegin();
reference++;
for (; reference != data.rend(); ++reference) {
std::pair<uint64_t, std::string> element = cursor->prev();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
EXPECT_THROW(cursor->prev(), LMDBAL::NotFound);
std::pair<uint64_t, std::string> element = cursor->last();
reference = data.rbegin();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
TEST_F(StorageCursorTest, CurrentPrivate) {
std::pair<uint64_t, std::string> element = cursor->first();
std::map<uint64_t, std::string>::const_iterator reference = data.begin();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
element = cursor->current();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
cursor->next();
element = cursor->current();
++reference;
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
cursor->next();
cursor->next();
cursor->prev();
element = cursor->current();
++reference;
++reference;
--reference;
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
TEST_F(StorageCursorTest, Destruction) {
cursor->close();
EXPECT_THROW(cursor->first(), LMDBAL::CursorNotReady);
EXPECT_THROW(cursor->last(), LMDBAL::CursorNotReady);
EXPECT_THROW(cursor->next(), LMDBAL::CursorNotReady);
EXPECT_THROW(cursor->prev(), LMDBAL::CursorNotReady);
EXPECT_THROW(cursor->current(), LMDBAL::CursorNotReady);
EXPECT_THROW(emptyTable->destroyCursor(cursor), LMDBAL::Unknown);
table->destroyCursor(cursor);
cursor = table->createCursor();
}
TEST_F(StorageCursorTest, FirstPublic) {
transaction = db->beginReadOnlyTransaction();
cursor->open(transaction);
std::pair<uint64_t, std::string> element = cursor->first();
std::map<uint64_t, std::string>::const_iterator reference = data.begin();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
TEST_F(StorageCursorTest, NextPublic) {
std::map<uint64_t, std::string>::const_iterator reference = data.begin();
reference++;
for (; reference != data.end(); ++reference) {
std::pair<uint64_t, std::string> element = cursor->next();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
EXPECT_THROW(cursor->next(), LMDBAL::NotFound);
std::pair<uint64_t, std::string> element = cursor->first();
reference = data.begin();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
TEST_F(StorageCursorTest, LastPublic) {
std::pair<uint64_t, std::string> element = cursor->last();
std::map<uint64_t, std::string>::const_reverse_iterator reference = data.rbegin();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
TEST_F(StorageCursorTest, PrevPublic) {
std::map<uint64_t, std::string>::const_reverse_iterator reference = data.rbegin();
reference++;
for (; reference != data.rend(); ++reference) {
std::pair<uint64_t, std::string> element = cursor->prev();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
EXPECT_THROW(cursor->prev(), LMDBAL::NotFound);
std::pair<uint64_t, std::string> element = cursor->last();
reference = data.rbegin();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
TEST_F(StorageCursorTest, CurrentPublic) {
std::pair<uint64_t, std::string> element = cursor->first();
std::map<uint64_t, std::string>::const_iterator reference = data.begin();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
element = cursor->current();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
cursor->next();
element = cursor->current();
++reference;
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
cursor->next();
cursor->next();
cursor->prev();
element = cursor->current();
++reference;
++reference;
--reference;
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
}
TEST_F(StorageCursorTest, CornerCases) {
db->abortTransaction(transaction);
EXPECT_THROW(cursor->current(), LMDBAL::Unknown);
cursor->close();
emptyCursor->open();
EXPECT_THROW(emptyCursor->first(), LMDBAL::NotFound);
EXPECT_THROW(emptyCursor->last(), LMDBAL::NotFound);
EXPECT_THROW(emptyCursor->next(), LMDBAL::NotFound);
EXPECT_THROW(emptyCursor->prev(), LMDBAL::NotFound);
EXPECT_THROW(emptyCursor->current(), LMDBAL::Unknown);
emptyCursor->close();
cursor->open();
EXPECT_THROW(cursor->current(), LMDBAL::Unknown); //yeah, nice thing to write in the doc
std::map<uint64_t, std::string>::const_reverse_iterator breference = data.rbegin();
std::pair<uint64_t, std::string> element(cursor->prev());
EXPECT_EQ(element.first, breference->first); //nice thing to write in the doc, again!
EXPECT_EQ(element.second, breference->second);
element = cursor->current();
EXPECT_EQ(element.first, breference->first);
EXPECT_EQ(element.second, breference->second);
EXPECT_THROW(cursor->next(), LMDBAL::NotFound);
cursor->close();
cursor->open();
element = cursor->next();
std::map<uint64_t, std::string>::const_iterator reference = data.begin();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
element = cursor->current();
EXPECT_EQ(element.first, reference->first);
EXPECT_EQ(element.second, reference->second);
EXPECT_THROW(cursor->prev(), LMDBAL::NotFound);
}