qt5base-lts/tests/auto/other/toolsupport/tst_toolsupport.cpp
Thiago Macieira 1a161c8ede QDateTimePrivate: merge the time spec, DST status and validity flags
Storing them in a single byte is the first step towards the Short
QDateTime Optimization.

The bump in the "private version" by 10 is to accommodate possible
changes in the Qt 5.7 branch.

Change-Id: Id5480807d25e49e78b79ffff144a59420457bcf0
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2016-06-10 17:56:18 +00:00

149 lines
4.4 KiB
C++

/****************************************************************************
**
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#include <QtTest>
//
// Note:
//
// When this test here fails and the change leading to the failure
// intentionally changed a private class, adjust the test here and bump
// the TypeInformationVersion field in src/corelib/global/qhooks.cpp
// in the same commit as the modification to the private class.
//
// 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_LINUX
{
QTestData &data = QTest::newRow("QFilePrivate::fileName")
<< pmm_to_offsetof(&QFilePrivate::fileName);
data << 168 << 248;
}
#endif
{
QTest::newRow("QDateTimePrivate::m_msecs")
<< pmm_to_offsetof(&QDateTimePrivate::m_msecs) << 0 << 0;
QTest::newRow("QDateTimePrivate::m_status")
<< pmm_to_offsetof(&QDateTimePrivate::m_status) << 8 << 8;
QTest::newRow("QDateTimePrivate::m_offsetFromUtc")
<< pmm_to_offsetof(&QDateTimePrivate::m_offsetFromUtc) << 12 << 12;
QTest::newRow("QDateTimePrivate::m_timeZone")
<< pmm_to_offsetof(&QDateTimePrivate::m_timeZone) << 20 << 24;
}
#endif // RUN_MEMBER_OFFSET_TEST
}
QTEST_APPLESS_MAIN(tst_toolsupport);
#include "tst_toolsupport.moc"