keepassxc/tests/TestKdbx4.cpp
Carlo Teubner f15ee90429 TestKdbx4Format: use MockClock
Otherwise, assertions in TestKdbx4::testCustomData() may fail on rare
occasions, because the customData in a cloned entry won't be identical
to its original, because of its potentially-updated LastModified
property.

Originally noticed in
https://github.com/keepassxreboot/keepassxc/pull/7783#issuecomment-1101404487.
2022-04-18 15:09:44 -04:00

513 lines
22 KiB
C++

/*
* Copyright (C) 2018 KeePassXC Team <team@keepassxc.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 or (at your option)
* version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "TestKdbx4.h"
#include "config-keepassx-tests.h"
#include "core/Metadata.h"
#include "format/KdbxXmlReader.h"
#include "format/KdbxXmlWriter.h"
#include "format/KeePass2.h"
#include "format/KeePass2Reader.h"
#include "format/KeePass2Writer.h"
#include "keys/FileKey.h"
#include "keys/PasswordKey.h"
#include "mock/MockChallengeResponseKey.h"
#include "mock/MockClock.h"
#include <QTest>
int main(int argc, char* argv[])
{
QCoreApplication app(argc, argv);
QCoreApplication::setAttribute(Qt::AA_Use96Dpi, true);
QTEST_SET_MAIN_SOURCE_PATH
TestKdbx4Argon2 argon2Test;
TestKdbx4AesKdf aesKdfTest;
TestKdbx4Format kdbx4Test;
return QTest::qExec(&argon2Test, argc, argv) || QTest::qExec(&aesKdfTest, argc, argv)
|| QTest::qExec(&kdbx4Test, argc, argv);
}
void TestKdbx4Argon2::initTestCaseImpl()
{
m_xmlDb->changeKdf(fastKdf(KeePass2::uuidToKdf(KeePass2::KDF_ARGON2D)));
m_kdbxSourceDb->changeKdf(fastKdf(KeePass2::uuidToKdf(KeePass2::KDF_ARGON2D)));
}
QSharedPointer<Database>
TestKdbx4Argon2::readXml(const QString& path, bool strictMode, bool& hasError, QString& errorString)
{
KdbxXmlReader reader(KeePass2::FILE_VERSION_4);
reader.setStrictMode(strictMode);
auto db = reader.readDatabase(path);
hasError = reader.hasError();
errorString = reader.errorString();
return db;
}
QSharedPointer<Database> TestKdbx4Argon2::readXml(QBuffer* buf, bool strictMode, bool& hasError, QString& errorString)
{
KdbxXmlReader reader(KeePass2::FILE_VERSION_4);
reader.setStrictMode(strictMode);
auto db = reader.readDatabase(buf);
hasError = reader.hasError();
errorString = reader.errorString();
return db;
}
void TestKdbx4Argon2::writeXml(QBuffer* buf, Database* db, bool& hasError, QString& errorString)
{
KdbxXmlWriter writer(KeePass2::FILE_VERSION_4);
writer.writeDatabase(buf, db);
hasError = writer.hasError();
errorString = writer.errorString();
}
void TestKdbx4Argon2::readKdbx(QIODevice* device,
QSharedPointer<const CompositeKey> key,
QSharedPointer<Database> db,
bool& hasError,
QString& errorString)
{
KeePass2Reader reader;
reader.readDatabase(device, key, db.data());
hasError = reader.hasError();
if (hasError) {
errorString = reader.errorString();
}
QCOMPARE(reader.version(), KeePass2::FILE_VERSION_4);
}
void TestKdbx4Argon2::writeKdbx(QIODevice* device, Database* db, bool& hasError, QString& errorString)
{
if (db->kdf()->uuid() == KeePass2::KDF_AES_KDBX3) {
db->changeKdf(fastKdf(KeePass2::uuidToKdf(KeePass2::KDF_ARGON2D)));
}
KeePass2Writer writer;
hasError = writer.writeDatabase(device, db);
hasError = writer.hasError();
if (hasError) {
errorString = writer.errorString();
}
QCOMPARE(writer.version(), KeePass2::FILE_VERSION_4);
}
void TestKdbx4AesKdf::initTestCaseImpl()
{
m_xmlDb->changeKdf(fastKdf(KeePass2::uuidToKdf(KeePass2::KDF_AES_KDBX4)));
m_kdbxSourceDb->changeKdf(fastKdf(KeePass2::uuidToKdf(KeePass2::KDF_AES_KDBX4)));
}
Q_DECLARE_METATYPE(QUuid)
void TestKdbx4Format::init()
{
MockClock::setup(new MockClock());
}
void TestKdbx4Format::cleanup()
{
MockClock::teardown();
}
void TestKdbx4Format::testFormat400()
{
QString filename = QString(KEEPASSX_TEST_DATA_DIR).append("/Format400.kdbx");
auto key = QSharedPointer<CompositeKey>::create();
key->addKey(QSharedPointer<PasswordKey>::create("t"));
KeePass2Reader reader;
auto db = QSharedPointer<Database>::create();
reader.readDatabase(filename, key, db.data());
QCOMPARE(reader.version(), KeePass2::FILE_VERSION_4);
QVERIFY(db.data());
QVERIFY(!reader.hasError());
QCOMPARE(db->rootGroup()->name(), QString("Format400"));
QCOMPARE(db->metadata()->name(), QString("Format400"));
QCOMPARE(db->rootGroup()->entries().size(), 1);
auto entry = db->rootGroup()->entries().at(0);
QCOMPARE(entry->title(), QString("Format400"));
QCOMPARE(entry->username(), QString("Format400"));
QCOMPARE(entry->attributes()->keys().size(), 6);
QCOMPARE(entry->attributes()->value("Format400"), QString("Format400"));
QCOMPARE(entry->attachments()->keys().size(), 1);
QCOMPARE(entry->attachments()->value("Format400"), QByteArray("Format400\n"));
}
void TestKdbx4Format::testFormat400Upgrade()
{
QFETCH(QUuid, kdfUuid);
QFETCH(QUuid, cipherUuid);
QFETCH(bool, addCustomData);
QFETCH(quint32, expectedVersion);
QScopedPointer<Database> sourceDb(new Database());
sourceDb->changeKdf(fastKdf(sourceDb->kdf()));
sourceDb->metadata()->setName("Wubba lubba dub dub");
QCOMPARE(sourceDb->kdf()->uuid(), KeePass2::KDF_AES_KDBX3); // default is legacy AES-KDF
auto key = QSharedPointer<CompositeKey>::create();
key->addKey(QSharedPointer<PasswordKey>::create("I am in great pain, please help me!"));
sourceDb->setKey(key, true, true);
QBuffer buffer;
buffer.open(QBuffer::ReadWrite);
// upgrade to KDBX 4 by changing KDF and Cipher
sourceDb->changeKdf(fastKdf(KeePass2::uuidToKdf(kdfUuid)));
sourceDb->setCipher(cipherUuid);
// CustomData in meta should not cause any version change
sourceDb->metadata()->customData()->set("CustomPublicData", "Hey look, I turned myself into a pickle!");
if (addCustomData) {
// this, however, should
sourceDb->rootGroup()->customData()->set("CustomGroupData",
"I just killed my family! I don't care who they were!");
}
KeePass2Writer writer;
writer.writeDatabase(&buffer, sourceDb.data());
if (writer.hasError()) {
QFAIL(qPrintable(QString("Error while writing database: %1").arg(writer.errorString())));
}
// read buffer back
buffer.seek(0);
KeePass2Reader reader;
auto targetDb = QSharedPointer<Database>::create();
reader.readDatabase(&buffer, key, targetDb.data());
if (reader.hasError()) {
QFAIL(qPrintable(QString("Error while reading database: %1").arg(reader.errorString())));
}
QVERIFY(targetDb->rootGroup());
QCOMPARE(targetDb->metadata()->name(), sourceDb->metadata()->name());
QCOMPARE(reader.version(), expectedVersion);
QCOMPARE(targetDb->cipher(), cipherUuid);
QCOMPARE(targetDb->metadata()->customData()->value("CustomPublicData"),
sourceDb->metadata()->customData()->value("CustomPublicData"));
QCOMPARE(targetDb->rootGroup()->customData()->value("CustomGroupData"),
sourceDb->rootGroup()->customData()->value("CustomGroupData"));
}
// clang-format off
void TestKdbx4Format::testFormat400Upgrade_data()
{
QTest::addColumn<QUuid>("kdfUuid");
QTest::addColumn<QUuid>("cipherUuid");
QTest::addColumn<bool>("addCustomData");
QTest::addColumn<quint32>("expectedVersion");
auto constexpr kdbx3 = KeePass2::FILE_VERSION_3_1;
auto constexpr kdbx4 = KeePass2::FILE_VERSION_4;
QTest::newRow("Argon2d + AES") << KeePass2::KDF_ARGON2D << KeePass2::CIPHER_AES256 << false << kdbx4;
QTest::newRow("Argon2id + AES") << KeePass2::KDF_ARGON2ID << KeePass2::CIPHER_AES256 << false << kdbx4;
QTest::newRow("AES-KDF + AES") << KeePass2::KDF_AES_KDBX4 << KeePass2::CIPHER_AES256 << false << kdbx4;
QTest::newRow("AES-KDF (legacy) + AES") << KeePass2::KDF_AES_KDBX3 << KeePass2::CIPHER_AES256 << false << kdbx3;
QTest::newRow("Argon2d + AES + CustomData") << KeePass2::KDF_ARGON2D << KeePass2::CIPHER_AES256 << true << kdbx4;
QTest::newRow("Argon2id + AES + CustomData") << KeePass2::KDF_ARGON2ID << KeePass2::CIPHER_AES256 << true << kdbx4;
QTest::newRow("AES-KDF + AES + CustomData") << KeePass2::KDF_AES_KDBX4 << KeePass2::CIPHER_AES256 << true << kdbx4;
QTest::newRow("AES-KDF (legacy) + AES + CustomData") << KeePass2::KDF_AES_KDBX3 << KeePass2::CIPHER_AES256 << true << kdbx4;
QTest::newRow("Argon2d + ChaCha20") << KeePass2::KDF_ARGON2D << KeePass2::CIPHER_CHACHA20 << false << kdbx4;
QTest::newRow("Argon2id + ChaCha20") << KeePass2::KDF_ARGON2ID << KeePass2::CIPHER_CHACHA20 << false << kdbx4;
QTest::newRow("AES-KDF + ChaCha20") << KeePass2::KDF_AES_KDBX4 << KeePass2::CIPHER_CHACHA20 << false << kdbx4;
QTest::newRow("AES-KDF (legacy) + ChaCha20") << KeePass2::KDF_AES_KDBX3 << KeePass2::CIPHER_CHACHA20 << false << kdbx3;
QTest::newRow("Argon2d + ChaCha20 + CustomData") << KeePass2::KDF_ARGON2D << KeePass2::CIPHER_CHACHA20 << true << kdbx4;
QTest::newRow("Argon2id + ChaCha20 + CustomData") << KeePass2::KDF_ARGON2ID << KeePass2::CIPHER_CHACHA20 << true << kdbx4;
QTest::newRow("AES-KDF + ChaCha20 + CustomData") << KeePass2::KDF_AES_KDBX4 << KeePass2::CIPHER_CHACHA20 << true << kdbx4;
QTest::newRow("AES-KDF (legacy) + ChaCha20 + CustomData") << KeePass2::KDF_AES_KDBX3 << KeePass2::CIPHER_CHACHA20 << true << kdbx4;
QTest::newRow("Argon2d + Twofish") << KeePass2::KDF_ARGON2D << KeePass2::CIPHER_TWOFISH << false << kdbx4;
QTest::newRow("Argon2id + Twofish") << KeePass2::KDF_ARGON2ID << KeePass2::CIPHER_TWOFISH << false << kdbx4;
QTest::newRow("AES-KDF + Twofish") << KeePass2::KDF_AES_KDBX4 << KeePass2::CIPHER_TWOFISH << false << kdbx4;
QTest::newRow("AES-KDF (legacy) + Twofish") << KeePass2::KDF_AES_KDBX3 << KeePass2::CIPHER_TWOFISH << false << kdbx3;
QTest::newRow("Argon2d + Twofish + CustomData") << KeePass2::KDF_ARGON2D << KeePass2::CIPHER_TWOFISH << true << kdbx4;
QTest::newRow("Argon2id + Twofish + CustomData") << KeePass2::KDF_ARGON2ID << KeePass2::CIPHER_TWOFISH << true << kdbx4;
QTest::newRow("AES-KDF + Twofish + CustomData") << KeePass2::KDF_AES_KDBX4 << KeePass2::CIPHER_TWOFISH << true << kdbx4;
QTest::newRow("AES-KDF (legacy) + Twofish + CustomData") << KeePass2::KDF_AES_KDBX3 << KeePass2::CIPHER_TWOFISH << true << kdbx4;
}
// clang-format on
void TestKdbx4Format::testFormat410Upgrade()
{
Database db;
db.changeKdf(fastKdf(db.kdf()));
QCOMPARE(db.kdf()->uuid(), KeePass2::KDF_AES_KDBX3);
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_3_1);
auto group1 = new Group();
group1->setUuid(QUuid::createUuid());
group1->setParent(db.rootGroup());
auto group2 = new Group();
group2->setUuid(QUuid::createUuid());
group2->setParent(db.rootGroup());
auto entry = new Entry();
entry->setUuid(QUuid::createUuid());
entry->setGroup(group1);
// Groups with tags
group1->setTags("tag");
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_4_1);
group1->setTags("");
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_3_1);
// PasswordQuality flag set
entry->setExcludeFromReports(true);
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_4_1);
entry->setExcludeFromReports(false);
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_3_1);
// Previous parent group set on group
group1->setPreviousParentGroup(group2);
QCOMPARE(group1->previousParentGroup(), group2);
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_4_1);
group1->setPreviousParentGroup(nullptr);
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_3_1);
// Previous parent group set on entry
entry->setPreviousParentGroup(group2);
QCOMPARE(entry->previousParentGroup(), group2);
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_4_1);
entry->setPreviousParentGroup(nullptr);
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_3_1);
// Custom icons with name or modification date
Metadata::CustomIconData customIcon;
auto iconUuid = QUuid::createUuid();
db.metadata()->addCustomIcon(iconUuid, customIcon);
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_3_1);
customIcon.name = "abc";
db.metadata()->removeCustomIcon(iconUuid);
db.metadata()->addCustomIcon(iconUuid, customIcon);
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_4_1);
customIcon.name.clear();
customIcon.lastModified = Clock::currentDateTimeUtc();
db.metadata()->removeCustomIcon(iconUuid);
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_3_1);
db.metadata()->addCustomIcon(iconUuid, customIcon);
QCOMPARE(KeePass2Writer::kdbxVersionRequired(&db), KeePass2::FILE_VERSION_4_1);
}
void TestKdbx4Format::testUpgradeMasterKeyIntegrity()
{
QFETCH(QString, upgradeAction);
QFETCH(quint32, expectedVersion);
// prepare composite key
auto passwordKey = QSharedPointer<PasswordKey>::create("turXpGMQiUE6CkPvWacydAKsnp4cxz");
QByteArray fileKeyBytes("Ma6hHov98FbPeyAL22XhcgmpJk8xjQ");
QBuffer fileKeyBuffer(&fileKeyBytes);
fileKeyBuffer.open(QBuffer::ReadOnly);
auto fileKey = QSharedPointer<FileKey>::create();
fileKey->load(&fileKeyBuffer);
auto crKey = QSharedPointer<MockChallengeResponseKey>::create(QByteArray("azdJnbVCFE76vV6t9RJ2DS6xvSS93k"));
auto compositeKey = QSharedPointer<CompositeKey>::create();
compositeKey->addKey(passwordKey);
compositeKey->addKey(fileKey);
compositeKey->addChallengeResponseKey(crKey);
QScopedPointer<Database> db(new Database());
db->changeKdf(fastKdf(db->kdf()));
QCOMPARE(db->kdf()->uuid(), KeePass2::KDF_AES_KDBX3); // default is legacy AES-KDF
db->setKey(compositeKey);
// upgrade the database by a specific method
if (upgradeAction == "none") {
// do nothing
} else if (upgradeAction == "meta-customdata") {
db->metadata()->customData()->set("abc", "def");
} else if (upgradeAction == "kdf-aes-kdbx3") {
db->changeKdf(fastKdf(KeePass2::uuidToKdf(KeePass2::KDF_AES_KDBX3)));
} else if (upgradeAction == "kdf-argon2") {
db->changeKdf(fastKdf(KeePass2::uuidToKdf(KeePass2::KDF_ARGON2D)));
} else if (upgradeAction == "kdf-aes-kdbx4") {
db->changeKdf(fastKdf(KeePass2::uuidToKdf(KeePass2::KDF_AES_KDBX4)));
} else if (upgradeAction == "public-customdata") {
db->publicCustomData().insert("abc", "def");
} else if (upgradeAction == "rootgroup-customdata") {
db->rootGroup()->customData()->set("abc", "def");
} else if (upgradeAction == "group-customdata") {
auto group = new Group();
group->setParent(db->rootGroup());
group->setUuid(QUuid::createUuid());
group->customData()->set("abc", "def");
} else if (upgradeAction == "rootentry-customdata") {
auto entry = new Entry();
entry->setGroup(db->rootGroup());
entry->setUuid(QUuid::createUuid());
entry->customData()->set("abc", "def");
} else if (upgradeAction == "entry-customdata") {
auto group = new Group();
group->setParent(db->rootGroup());
group->setUuid(QUuid::createUuid());
auto entry = new Entry();
entry->setGroup(group);
entry->setUuid(QUuid::createUuid());
entry->customData()->set("abc", "def");
} else {
QFAIL(qPrintable(QString("Unknown action: %s").arg(upgradeAction)));
}
QBuffer buffer;
buffer.open(QBuffer::ReadWrite);
KeePass2Writer writer;
QVERIFY(writer.writeDatabase(&buffer, db.data()));
// paranoid check that we cannot decrypt the database without a key
buffer.seek(0);
KeePass2Reader reader;
auto db2 = QSharedPointer<Database>::create();
reader.readDatabase(&buffer, QSharedPointer<CompositeKey>::create(), db2.data());
QVERIFY(reader.hasError());
// check that we can read back the database with the original composite key,
// i.e., no components have been lost on the way
buffer.seek(0);
db2 = QSharedPointer<Database>::create();
reader.readDatabase(&buffer, compositeKey, db2.data());
if (reader.hasError()) {
QFAIL(qPrintable(reader.errorString()));
}
QCOMPARE(reader.version(), expectedVersion);
if (expectedVersion >= KeePass2::FILE_VERSION_4) {
QVERIFY(db2->kdf()->uuid() != KeePass2::KDF_AES_KDBX3);
}
}
void TestKdbx4Format::testUpgradeMasterKeyIntegrity_data()
{
QTest::addColumn<QString>("upgradeAction");
QTest::addColumn<quint32>("expectedVersion");
QTest::newRow("Upgrade: none") << QString("none") << KeePass2::FILE_VERSION_3_1;
QTest::newRow("Upgrade: none (meta-customdata)") << QString("meta-customdata") << KeePass2::FILE_VERSION_3_1;
QTest::newRow("Upgrade: none (explicit kdf-aes-kdbx3)") << QString("kdf-aes-kdbx3") << KeePass2::FILE_VERSION_3_1;
QTest::newRow("Upgrade (explicit): kdf-argon2") << QString("kdf-argon2") << KeePass2::FILE_VERSION_4;
QTest::newRow("Upgrade (explicit): kdf-aes-kdbx4") << QString("kdf-aes-kdbx4") << KeePass2::FILE_VERSION_4;
QTest::newRow("Upgrade (implicit): public-customdata") << QString("public-customdata") << KeePass2::FILE_VERSION_4;
QTest::newRow("Upgrade (implicit): rootgroup-customdata")
<< QString("rootgroup-customdata") << KeePass2::FILE_VERSION_4;
QTest::newRow("Upgrade (implicit): group-customdata") << QString("group-customdata") << KeePass2::FILE_VERSION_4;
QTest::newRow("Upgrade (implicit): rootentry-customdata")
<< QString("rootentry-customdata") << KeePass2::FILE_VERSION_4;
QTest::newRow("Upgrade (implicit): entry-customdata") << QString("entry-customdata") << KeePass2::FILE_VERSION_4;
}
void TestKdbx4Format::testCustomData()
{
Database db;
// test public custom data
QVariantMap publicCustomData;
publicCustomData.insert("CD1", 123);
publicCustomData.insert("CD2", true);
publicCustomData.insert("CD3", "abcäöü");
db.setPublicCustomData(publicCustomData);
publicCustomData.insert("CD4", QByteArray::fromHex("ababa123ff"));
db.publicCustomData().insert("CD4", publicCustomData.value("CD4"));
QCOMPARE(db.publicCustomData(), publicCustomData);
const QString customDataKey1 = "CD1";
const QString customDataKey2 = "CD2";
const QString customData1 = "abcäöü";
const QString customData2 = "Hello World";
// test custom database data
db.metadata()->customData()->set(customDataKey1, customData1);
db.metadata()->customData()->set(customDataKey2, customData2);
auto lastModified = db.metadata()->customData()->value(CustomData::LastModified);
const int dataSize = customDataKey1.toUtf8().size() + customDataKey2.toUtf8().size() + customData1.toUtf8().size()
+ customData2.toUtf8().size() + lastModified.toUtf8().size()
+ CustomData::LastModified.toUtf8().size();
QCOMPARE(db.metadata()->customData()->size(), 3);
QCOMPARE(db.metadata()->customData()->dataSize(), dataSize);
// test custom root group data
Group* root = db.rootGroup();
root->customData()->set(customDataKey1, customData1);
root->customData()->set(customDataKey2, customData2);
QCOMPARE(root->customData()->size(), 3);
QCOMPARE(root->customData()->dataSize(), dataSize);
// test copied custom group data
auto* group = new Group();
group->setParent(root);
group->setUuid(QUuid::createUuid());
group->customData()->copyDataFrom(root->customData());
QCOMPARE(*group->customData(), *root->customData());
// test copied custom entry data
auto* entry = new Entry();
entry->setGroup(group);
entry->setUuid(QUuid::createUuid());
entry->customData()->copyDataFrom(group->customData());
QCOMPARE(*entry->customData(), *root->customData());
// test custom data deletion
entry->customData()->set("additional item", "foobar");
QCOMPARE(entry->customData()->size(), 4);
entry->customData()->remove("additional item");
QCOMPARE(entry->customData()->size(), 3);
QCOMPARE(entry->customData()->dataSize(), dataSize);
// test custom data on cloned groups
QScopedPointer<Group> clonedGroup(group->clone());
QCOMPARE(*clonedGroup->customData(), *group->customData());
// test custom data on cloned entries
QScopedPointer<Entry> clonedEntry(entry->clone(Entry::CloneNoFlags));
QCOMPARE(*clonedEntry->customData(), *entry->customData());
QBuffer buffer;
buffer.open(QBuffer::ReadWrite);
KeePass2Writer writer;
writer.writeDatabase(&buffer, &db);
// read buffer back
buffer.seek(0);
KeePass2Reader reader;
auto newDb = QSharedPointer<Database>::create();
reader.readDatabase(&buffer, QSharedPointer<CompositeKey>::create(), newDb.data());
// test all custom data are read back successfully from KDBX
QCOMPARE(newDb->publicCustomData(), publicCustomData);
QCOMPARE(newDb->metadata()->customData()->value(customDataKey1), customData1);
QCOMPARE(newDb->metadata()->customData()->value(customDataKey2), customData2);
QCOMPARE(newDb->rootGroup()->customData()->value(customDataKey1), customData1);
QCOMPARE(newDb->rootGroup()->customData()->value(customDataKey2), customData2);
auto* newGroup = newDb->rootGroup()->children()[0];
QCOMPARE(newGroup->customData()->value(customDataKey1), customData1);
QCOMPARE(newGroup->customData()->value(customDataKey2), customData2);
auto* newEntry = newDb->rootGroup()->children()[0]->entries()[0];
QCOMPARE(newEntry->customData()->value(customDataKey1), customData1);
QCOMPARE(newEntry->customData()->value(customDataKey2), customData2);
}