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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();
}
}
int getTableCursorsSize() const {
return table->cursors.size();
}
static void TearDownTestSuite() {
cursor.drop();
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transaction.terminate();
db->close();
db->removeDirectory();
delete db;
db = nullptr;
}
static LMDBAL::Base* db;
static LMDBAL::Cursor<uint64_t, std::string> cursor;
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static LMDBAL::Transaction 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;
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LMDBAL::Transaction StorageCursorTest::transaction = LMDBAL::Transaction();
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) {
EXPECT_EQ(getTableCursorsSize(), 0);
cursor = table->createCursor();
EXPECT_EQ(getTableCursorsSize(), 1);
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) {
EXPECT_EQ(getTableCursorsSize(), 1);
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) {
EXPECT_EQ(getTableCursorsSize(), 1);
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) {
EXPECT_EQ(getTableCursorsSize(), 1);
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) {
EXPECT_EQ(getTableCursorsSize(), 1);
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) {
EXPECT_EQ(getTableCursorsSize(), 1);
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, SettingPrivate) {
EXPECT_EQ(getTableCursorsSize(), 1);
EXPECT_FALSE(cursor.set(6684));
EXPECT_EQ(cursor.current().second, "tanned inmate");
std::map<uint64_t, std::string>::const_iterator reference = data.begin();
std::advance(reference, 5);
EXPECT_TRUE(cursor.set(reference->first));
EXPECT_EQ(cursor.current().second, reference->second);
++reference;
cursor.next();
EXPECT_EQ(cursor.current().second, reference->second);
++reference;
cursor.next();
EXPECT_EQ(cursor.current().second, reference->second);
--reference;
cursor.prev();
EXPECT_EQ(cursor.current().second, reference->second);
--reference;
cursor.prev();
EXPECT_EQ(cursor.current().second, reference->second);
--reference;
cursor.prev();
EXPECT_EQ(cursor.current().second, reference->second);
}
TEST_F(StorageCursorTest, Destruction) {
EXPECT_EQ(getTableCursorsSize(), 1);
cursor.close();
EXPECT_EQ(getTableCursorsSize(), 1);
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 = LMDBAL::Cursor<uint64_t, std::string>();
EXPECT_EQ(getTableCursorsSize(), 0);
cursor = table->createCursor();
EXPECT_EQ(getTableCursorsSize(), 1);
}
TEST_F(StorageCursorTest, FirstPublic) {
EXPECT_EQ(getTableCursorsSize(), 1);
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) {
EXPECT_EQ(getTableCursorsSize(), 1);
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) {
EXPECT_EQ(getTableCursorsSize(), 1);
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) {
EXPECT_EQ(getTableCursorsSize(), 1);
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) {
EXPECT_EQ(getTableCursorsSize(), 1);
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, SettingPublic) {
EXPECT_EQ(getTableCursorsSize(), 1);
EXPECT_FALSE(cursor.set(557));
EXPECT_EQ(cursor.current().second, "resilent pick forefront");
std::map<uint64_t, std::string>::const_iterator reference = data.begin();
std::advance(reference, 3);
EXPECT_TRUE(cursor.set(reference->first));
EXPECT_EQ(cursor.current().second, reference->second);
++reference;
cursor.next();
EXPECT_EQ(cursor.current().second, reference->second);
++reference;
cursor.next();
EXPECT_EQ(cursor.current().second, reference->second);
--reference;
cursor.prev();
EXPECT_EQ(cursor.current().second, reference->second);
--reference;
cursor.prev();
EXPECT_EQ(cursor.current().second, reference->second);
--reference;
cursor.prev();
EXPECT_EQ(cursor.current().second, reference->second);
}
TEST_F(StorageCursorTest, CursorRAIIBehaviour) {
int initialiCursorsAmount = getTableCursorsSize();
{
LMDBAL::Cursor<uint64_t, std::string> cur = table->createCursor();
EXPECT_EQ(initialiCursorsAmount + 1, getTableCursorsSize());
cur.open(transaction);
EXPECT_NO_THROW(cur.first());
}
EXPECT_EQ(initialiCursorsAmount, getTableCursorsSize());
LMDBAL::Cursor<uint64_t, std::string> cur;
EXPECT_EQ(initialiCursorsAmount, getTableCursorsSize());
EXPECT_EQ(cur.empty(), true);
cur = table->createCursor();
EXPECT_EQ(cur.empty(), false);
EXPECT_EQ(initialiCursorsAmount + 1, getTableCursorsSize());
EXPECT_THROW(emptyTable->destroyCursor(cur), LMDBAL::Unknown);
table->destroyCursor(cur);
EXPECT_EQ(cur.empty(), true);
EXPECT_EQ(initialiCursorsAmount, getTableCursorsSize());
cur = table->createCursor();
EXPECT_EQ(initialiCursorsAmount + 1, getTableCursorsSize());
EXPECT_EQ(cur.empty(), false);
cur.drop();
EXPECT_EQ(cur.empty(), true);
EXPECT_EQ(initialiCursorsAmount, getTableCursorsSize());
EXPECT_NO_THROW(cur.drop());
EXPECT_THROW(table->destroyCursor(cur), LMDBAL::Unknown);
}
TEST_F(StorageCursorTest, CornerCases) {
EXPECT_EQ(getTableCursorsSize(), 1);
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transaction.terminate();
EXPECT_THROW(cursor.current(), LMDBAL::Unknown);
cursor.close();
LMDBAL::Cursor<uint64_t, std::string> emptyCursor = emptyTable->createCursor();
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);
}