c0c6dd2b02
Change-Id: I851e0b1c3f80a7b33a38cb1ab2665dc0f3c73adc Reviewed-on: http://codereview.qt.nokia.com/1248 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: Gabriel de Dietrich <gabriel.dietrich-de@nokia.com>
129 lines
4.2 KiB
C++
129 lines
4.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtTest/QtTest>
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class tst_QFlags: public QObject
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{
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Q_OBJECT
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private slots:
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void testFlag() const;
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void testFlagZeroFlag() const;
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void testFlagMultiBits() const;
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void constExpr();
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};
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void tst_QFlags::testFlag() const
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{
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Qt::MouseButtons btn = Qt::LeftButton | Qt::RightButton;
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QVERIFY(btn.testFlag(Qt::LeftButton));
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QVERIFY(!btn.testFlag(Qt::MidButton));
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btn = 0;
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QVERIFY(!btn.testFlag(Qt::LeftButton));
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}
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void tst_QFlags::testFlagZeroFlag() const
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{
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{
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Qt::MouseButtons btn = Qt::LeftButton | Qt::RightButton;
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/* Qt::NoButton has the value 0. */
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QVERIFY(!btn.testFlag(Qt::NoButton));
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}
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{
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/* A zero enum set should test true with zero. */
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QVERIFY(Qt::MouseButtons().testFlag(Qt::NoButton));
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}
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{
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Qt::MouseButtons btn = Qt::NoButton;
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QVERIFY(btn.testFlag(Qt::NoButton));
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}
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}
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void tst_QFlags::testFlagMultiBits() const
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{
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/* Qt::Window is 0x00000001
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* Qt::Dialog is 0x00000002 | Window
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*/
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{
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const Qt::WindowFlags onlyWindow(Qt::Window);
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QVERIFY(!onlyWindow.testFlag(Qt::Dialog));
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}
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{
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const Qt::WindowFlags hasDialog(Qt::Dialog);
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QVERIFY(hasDialog.testFlag(Qt::Dialog));
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}
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}
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template <int N, typename T> bool verifyConstExpr(T n) { return n == N; }
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void tst_QFlags::constExpr()
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{
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#ifdef Q_COMPILER_CONSTEXPR
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Qt::MouseButtons btn = Qt::LeftButton | Qt::RightButton;
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switch (btn) {
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case Qt::LeftButton: QVERIFY(false); break;
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case Qt::RightButton: QVERIFY(false); break;
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case Qt::LeftButton | Qt::RightButton: QVERIFY(true); break;
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default: QVERIFY(false);
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}
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QVERIFY(verifyConstExpr<(Qt::LeftButton | Qt::RightButton) & Qt::LeftButton>(Qt::LeftButton));
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QVERIFY(verifyConstExpr<(Qt::LeftButton | Qt::RightButton) & Qt::MiddleButton>(0));
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QVERIFY(verifyConstExpr<(Qt::LeftButton | Qt::RightButton) | Qt::MiddleButton>(Qt::LeftButton | Qt::RightButton | Qt::MiddleButton));
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QVERIFY(verifyConstExpr<~(Qt::LeftButton | Qt::RightButton)>(~(Qt::LeftButton | Qt::RightButton)));
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QVERIFY(verifyConstExpr<Qt::MouseButtons(Qt::LeftButton) ^ Qt::RightButton>(Qt::LeftButton ^ Qt::RightButton));
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QVERIFY(verifyConstExpr<Qt::MouseButtons(0)>(0));
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QVERIFY(verifyConstExpr<Qt::MouseButtons(Qt::RightButton) & 0xff>(Qt::RightButton));
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QVERIFY(verifyConstExpr<Qt::MouseButtons(Qt::RightButton) | 0xff>(0xff));
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QVERIFY(!verifyConstExpr<Qt::RightButton>(!Qt::MouseButtons(Qt::LeftButton)));
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#endif
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}
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QTEST_MAIN(tst_QFlags)
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#include "tst_qflags.moc"
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