qt5base-lts/tests/auto/other/toolsupport/tst_toolsupport.cpp

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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include <QtTest>
// Don't do this at home. This is test code, not production.
#define protected public
#define private public
#include <private/qdatetime_p.h>
#include <private/qfile_p.h>
#include <private/qfileinfo_p.h>
#include <private/qobject_p.h>
#include <qobject.h>
#if defined(Q_CC_GNU) || defined(Q_CC_MSVC)
#define RUN_MEMBER_OFFSET_TEST 1
#else
#define RUN_MEMBER_OFFSET_TEST 0
#endif
#if RUN_MEMBER_OFFSET_TEST
template <typename T, typename K>
size_t pmm_to_offsetof(T K:: *pmm)
{
#ifdef Q_CC_MSVC
// Even on 64 bit MSVC uses 4 byte offsets.
quint32 ret;
#else
size_t ret;
#endif
Q_STATIC_ASSERT(sizeof(ret) == sizeof(pmm));
memcpy(&ret, &pmm, sizeof(ret));
return ret;
}
#endif
class tst_toolsupport : public QObject
{
Q_OBJECT
private slots:
void offsets();
void offsets_data();
};
void tst_toolsupport::offsets()
{
QFETCH(size_t, actual);
QFETCH(int, expected32);
QFETCH(int, expected64);
size_t expect = sizeof(void *) == 4 ? expected32 : expected64;
QCOMPARE(actual, expect);
}
void tst_toolsupport::offsets_data()
{
QTest::addColumn<size_t>("actual");
QTest::addColumn<int>("expected32");
QTest::addColumn<int>("expected64");
{
QTestData &data = QTest::newRow("sizeof(QObjectData)")
<< sizeof(QObjectData);
data << 28 << 48; // vptr + 3 ptr + 2 int + ptr
}
#if RUN_MEMBER_OFFSET_TEST
{
QTestData &data = QTest::newRow("QObjectPrivate::extraData")
<< pmm_to_offsetof(&QObjectPrivate::extraData);
data << 28 << 48; // sizeof(QObjectData)
}
{
QTestData &data = QTest::newRow("QFileInfoPrivate::fileEntry")
<< pmm_to_offsetof(&QFileInfoPrivate::fileEntry);
data << 4 << 8;
}
{
QTestData &data = QTest::newRow("QFileSystemEntry::filePath")
<< pmm_to_offsetof(&QFileSystemEntry::m_filePath);
data << 0 << 0;
}
{
#ifdef Q_OS_WIN
QTest::newRow("QDateTimePrivate::m_msecs")
<< pmm_to_offsetof(&QDateTimePrivate::m_msecs) << 8 << 8;
QTest::newRow("QDateTimePrivate::m_spec")
<< pmm_to_offsetof(&QDateTimePrivate::m_spec) << 16 << 16;
QTest::newRow("QDateTimePrivate::m_offsetFromUtc")
<< pmm_to_offsetof(&QDateTimePrivate::m_offsetFromUtc) << 20 << 20;
QTest::newRow("QDateTimePrivate::m_timeZone")
<< pmm_to_offsetof(&QDateTimePrivate::m_timeZone) << 24 << 24;
QTest::newRow("QDateTimePrivate::m_status")
<< pmm_to_offsetof(&QDateTimePrivate::m_status) << 28 << 32;
#else
QTest::newRow("QDateTimePrivate::m_msecs")
<< pmm_to_offsetof(&QDateTimePrivate::m_msecs) << 4 << 8;
QTest::newRow("QDateTimePrivate::m_spec")
<< pmm_to_offsetof(&QDateTimePrivate::m_spec) << 12 << 16;
QTest::newRow("QDateTimePrivate::m_offsetFromUtc")
<< pmm_to_offsetof(&QDateTimePrivate::m_offsetFromUtc) << 16 << 20;
QTest::newRow("QDateTimePrivate::m_timeZone")
<< pmm_to_offsetof(&QDateTimePrivate::m_timeZone) << 20 << 24;
QTest::newRow("QDateTimePrivate::m_status")
<< pmm_to_offsetof(&QDateTimePrivate::m_status) << 24 << 32;
#endif
}
#endif // RUN_MEMBER_OFFSET_TEST
}
QTEST_APPLESS_MAIN(tst_toolsupport);
#include "tst_toolsupport.moc"