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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include <QTest>
#include <QObject>
#include <QPair>
#include <QScopeGuard>
#include <private/qwinregistry_p.h>
#include <qt_windows.h>
using namespace Qt::StringLiterals;
static constexpr const wchar_t TEST_KEY[] = LR"(SOFTWARE\tst_qwinregistrykey)";
static const QPair<QStringView, QString> TEST_STRING = qMakePair(u"string", u"string"_s);
static const QPair<QStringView, QString> TEST_STRING_NULL = qMakePair(u"string_null", QString());
static const QPair<QStringView, QStringList> TEST_STRINGLIST = qMakePair(u"stringlist", QStringList{ u"element1"_s, u"element2"_s, u"element3"_s });
static const QPair<QStringView, QStringList> TEST_STRINGLIST_NULL = qMakePair(u"stringlist_null", QStringList());
static const QPair<QStringView, quint32> TEST_DWORD = qMakePair(u"dword", 123);
static const QPair<QStringView, quint64> TEST_QWORD = qMakePair(u"qword", 456);
static const QPair<QStringView, QByteArray> TEST_BINARY = qMakePair(u"binary", "binary\0"_ba);
static const QPair<QStringView, QVariant> TEST_NOT_EXIST = qMakePair(u"not_exist", QVariant());
[[nodiscard]] static inline bool write(const HKEY key, const QStringView name, const QVariant &value)
{
DWORD type = REG_NONE;
QByteArray buf = {};
switch (value.typeId()) {
case QMetaType::QStringList: {
// If none of the elements contains '\0', we can use REG_MULTI_SZ, the
// native registry string list type. Otherwise we use REG_BINARY.
type = REG_MULTI_SZ;
const QStringList list = value.toStringList();
for (auto it = list.constBegin(); it != list.constEnd(); ++it) {
if ((*it).length() == 0 || it->contains(QChar::Null)) {
type = REG_BINARY;
break;
}
}
if (type == REG_BINARY) {
const QString str = value.toString();
buf = QByteArray(reinterpret_cast<const char *>(str.data()), str.length() * 2);
} else {
for (auto it = list.constBegin(); it != list.constEnd(); ++it) {
const QString &str = *it;
buf += QByteArray(reinterpret_cast<const char *>(str.utf16()), (str.length() + 1) * 2);
}
// According to Microsoft Docs, REG_MULTI_SZ requires double '\0'.
buf.append((char)0);
buf.append((char)0);
}
break;
}
case QMetaType::Int:
case QMetaType::UInt: {
type = REG_DWORD;
quint32 num = value.toUInt();
buf = QByteArray(reinterpret_cast<const char *>(&num), sizeof(quint32));
break;
}
case QMetaType::LongLong:
case QMetaType::ULongLong: {
type = REG_QWORD;
quint64 num = value.toULongLong();
buf = QByteArray(reinterpret_cast<const char *>(&num), sizeof(quint64));
break;
}
case QMetaType::QByteArray:
default: {
// If the string does not contain '\0', we can use REG_SZ, the native registry
// string type. Otherwise we use REG_BINARY.
const QString str = value.toString();
type = str.contains(QChar::Null) ? REG_BINARY : REG_SZ;
int length = str.length();
if (type == REG_SZ)
++length;
buf = QByteArray(reinterpret_cast<const char *>(str.utf16()), sizeof(wchar_t) * length);
break;
}
}
const LONG ret = RegSetValueExW(key, reinterpret_cast<const wchar_t *>(name.utf16()),
0, type, reinterpret_cast<LPBYTE>(buf.data()), buf.size());
return ret == ERROR_SUCCESS;
}
class tst_qwinregistrykey : public QObject
{
Q_OBJECT
private Q_SLOTS:
void initTestCase();
void cleanupTestCase();
void qwinregistrykey();
private:
bool m_available = false;
};
void tst_qwinregistrykey::initTestCase()
{
HKEY key = nullptr;
const LONG ret = RegCreateKeyExW(HKEY_CURRENT_USER, TEST_KEY, 0, nullptr, 0,
KEY_READ | KEY_WRITE, nullptr, &key, nullptr);
if (ret != ERROR_SUCCESS)
return;
const auto cleanup = qScopeGuard([key](){ RegCloseKey(key); });
if (!write(key, TEST_STRING.first, TEST_STRING.second))
return;
if (!write(key, TEST_STRING_NULL.first, TEST_STRING_NULL.second))
return;
if (!write(key, TEST_STRINGLIST.first, TEST_STRINGLIST.second))
return;
if (!write(key, TEST_STRINGLIST_NULL.first, TEST_STRINGLIST_NULL.second))
return;
if (!write(key, TEST_DWORD.first, TEST_DWORD.second))
return;
if (!write(key, TEST_QWORD.first, TEST_QWORD.second))
return;
if (!write(key, TEST_BINARY.first, TEST_BINARY.second))
return;
m_available = true;
}
void tst_qwinregistrykey::cleanupTestCase()
{
HKEY key = nullptr;
const LONG ret = RegOpenKeyExW(HKEY_CURRENT_USER, TEST_KEY, 0, KEY_READ | KEY_WRITE, &key);
if (ret != ERROR_SUCCESS)
return;
#define C_STR(View) reinterpret_cast<const wchar_t *>(View.utf16())
RegDeleteValueW(key, C_STR(TEST_STRING.first));
RegDeleteValueW(key, C_STR(TEST_STRING_NULL.first));
RegDeleteValueW(key, C_STR(TEST_STRINGLIST.first));
RegDeleteValueW(key, C_STR(TEST_STRINGLIST_NULL.first));
RegDeleteValueW(key, C_STR(TEST_DWORD.first));
RegDeleteValueW(key, C_STR(TEST_QWORD.first));
RegDeleteValueW(key, C_STR(TEST_BINARY.first));
#undef C_STR
RegCloseKey(key);
RegDeleteKeyW(HKEY_CURRENT_USER, TEST_KEY);
}
void tst_qwinregistrykey::qwinregistrykey()
{
if (!m_available)
QSKIP("The test data is not ready.");
QWinRegistryKey registry(HKEY_CURRENT_USER, TEST_KEY);
QVERIFY(registry.isValid());
QVERIFY(registry.handle() != nullptr);
{
const auto value = registry.value<QString>(TEST_STRING.first);
QVERIFY(value.has_value());
QCOMPARE(value.value_or(QString()), TEST_STRING.second);
}
{
const auto value = registry.value<QString>(TEST_STRING_NULL.first);
QVERIFY(value.has_value());
QCOMPARE(value.value_or(QString()), TEST_STRING_NULL.second);
}
{
const auto value = registry.value<QStringList>(TEST_STRINGLIST.first);
QVERIFY(value.has_value());
QCOMPARE(value.value_or(QStringList()), TEST_STRINGLIST.second);
}
{
const auto value = registry.value<QStringList>(TEST_STRINGLIST_NULL.first);
QVERIFY(value.has_value());
QCOMPARE(value.value_or(QStringList()), TEST_STRINGLIST_NULL.second);
}
{
const auto value = registry.value<quint32>(TEST_DWORD.first);
QVERIFY(value.has_value());
QCOMPARE(value.value_or(0), TEST_DWORD.second);
}
{
const auto value = registry.value<quint64>(TEST_QWORD.first);
QVERIFY(value.has_value());
QCOMPARE(value.value_or(0), TEST_QWORD.second);
}
{
const auto value = registry.value<QByteArray>(TEST_BINARY.first);
QVERIFY(value.has_value());
QCOMPARE(value.value_or(QByteArray()), TEST_BINARY.second);
}
{
const auto value = registry.value<QVariant>(TEST_NOT_EXIST.first);
QVERIFY(!value.has_value());
QCOMPARE(value.value_or(QVariant()), QVariant());
}
{
const QString value = registry.stringValue(TEST_STRING.first);
QVERIFY(!value.isEmpty());
QCOMPARE(value, TEST_STRING.second);
}
QVERIFY(registry.stringValue(TEST_NOT_EXIST.first).isEmpty());
{
const auto value = registry.dwordValue(TEST_DWORD.first);
QVERIFY(value.second);
QCOMPARE(value.first, TEST_DWORD.second);
}
{
const auto value = registry.dwordValue(TEST_NOT_EXIST.first);
QVERIFY(!value.second);
QCOMPARE(value.first, DWORD(0));
}
}
QTEST_MAIN(tst_qwinregistrykey)
#include "tst_qwinregistrykey.moc"
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