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#include <QtTest>
#include <iostream>
#include <QDebug>
#include <QString>
#include <QtConcurrent/QtConcurrentRun>
#include "common/storage.h"
class StorageTest : public QObject
{
Q_OBJECT
private:
//This should point to a directory on disk and not a ramdisk (since we're measuring performance)
QString testDataPath;
QString dbName;
const char *keyPrefix = "key";
void populate(int count)
{
Storage storage(testDataPath, dbName, Storage::ReadWrite);
for (int i = 0; i < count; i++) {
//This should perhaps become an implementation detail of the db?
if (i % 10000 == 0) {
if (i > 0) {
storage.commitTransaction();
}
storage.startTransaction();
}
storage.write(keyPrefix + std::to_string(i), keyPrefix + std::to_string(i));
}
storage.commitTransaction();
}
bool verify(Storage &storage, int i)
{
bool success = true;
bool keyMatch = true;
const auto reference = keyPrefix + std::to_string(i);
storage.read(keyPrefix + std::to_string(i),
[&keyMatch, &reference](const std::string &value) -> bool {
if (value != reference) {
qDebug() << "Mismatch while reading";
keyMatch = false;
}
return keyMatch;
},
[&success](const Storage::Error &) { success = false; }
);
return success && keyMatch;
}
private Q_SLOTS:
void initTestCase()
{
testDataPath = "./testdb";
dbName = "test";
}
void cleanupTestCase()
{
Storage storage(testDataPath, dbName);
storage.removeFromDisk();
}
void testRead()
{
const int count = 100;
populate(count);
//ensure we can read everything back correctly
{
Storage storage(testDataPath, dbName);
for (int i = 0; i < count; i++) {
QVERIFY(verify(storage, i));
}
}
Storage storage(testDataPath, dbName);
storage.removeFromDisk();
}
void testScan()
{
const int count = 100;
populate(count);
//ensure we can scan for values
{
int hit = 0;
Storage store(testDataPath, dbName);
store.scan("", [&](void *keyValue, int keySize, void *dataValue, int dataSize) -> bool {
if (std::string(static_cast<char*>(keyValue), keySize) == "key50") {
hit++;
}
return true;
});
QCOMPARE(hit, 1);
}
//ensure we can read a single value
{
int hit = 0;
bool foundInvalidValue = false;
Storage store(testDataPath, dbName);
store.scan("key50", [&](void *keyValue, int keySize, void *dataValue, int dataSize) -> bool {
if (std::string(static_cast<char*>(keyValue), keySize) != "key50") {
foundInvalidValue = true;
}
hit++;
return true;
});
QVERIFY(!foundInvalidValue);
QCOMPARE(hit, 1);
}
Storage storage(testDataPath, dbName);
storage.removeFromDisk();
}
void testConcurrentRead()
{
const int count = 10000;
populate(count);
//Try to concurrently read
QList<QFuture<void> > futures;
const int concurrencyLevel = 4;
for (int num = 0; num < concurrencyLevel; num++) {
futures << QtConcurrent::run([this, count](){
Storage storage(testDataPath, dbName);
for (int i = 0; i < count; i++) {
if (!verify(storage, i)) {
qWarning() << "invalid value";
break;
}
}
});
}
for(auto future : futures) {
future.waitForFinished();
}
Storage storage(testDataPath, dbName);
storage.removeFromDisk();
}
};
QTEST_MAIN(StorageTest)
#include "storagetest.moc"
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