3 files changed, 133 insertions, 0 deletions
diff --git a/tests/auto/corelib/global/qflags/.gitignore b/tests/auto/corelib/global/qflags/.gitignore
new file mode 100644
index 0000000000..52e998ad15
--- /dev/null
+++ b/tests/auto/corelib/global/qflags/.gitignore
@@ -0,0 +1 @@
+tst_qflags
diff --git a/tests/auto/corelib/global/qflags/qflags.pro b/tests/auto/corelib/global/qflags/qflags.pro
new file mode 100644
index 0000000000..097a218a5a
--- /dev/null
+++ b/tests/auto/corelib/global/qflags/qflags.pro
@@ -0,0 +1,4 @@
+load(qttest_p4)
+SOURCES += tst_qflags.cpp
+QT = core
+CONFIG += parallel_test
diff --git a/tests/auto/corelib/global/qflags/tst_qflags.cpp b/tests/auto/corelib/global/qflags/tst_qflags.cpp
new file mode 100644
index 0000000000..85e64a6d63
--- /dev/null
+++ b/tests/auto/corelib/global/qflags/tst_qflags.cpp
@@ -0,0 +1,128 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <QtTest/QtTest>
+
+class tst_QFlags: public QObject
+{
+    Q_OBJECT
+private slots:
+    void testFlag() const;
+    void testFlagZeroFlag() const;
+    void testFlagMultiBits() const;
+    void constExpr();
+};
+
+void tst_QFlags::testFlag() const
+{
+    Qt::MouseButtons btn = Qt::LeftButton | Qt::RightButton;
+
+    QVERIFY(btn.testFlag(Qt::LeftButton));
+    QVERIFY(!btn.testFlag(Qt::MidButton));
+
+    btn = 0;
+    QVERIFY(!btn.testFlag(Qt::LeftButton));
+}
+
+void tst_QFlags::testFlagZeroFlag() const
+{
+    {
+        Qt::MouseButtons btn = Qt::LeftButton | Qt::RightButton;
+        /* Qt::NoButton has the value 0. */
+
+        QVERIFY(!btn.testFlag(Qt::NoButton));
+    }
+
+    {
+        /* A zero enum set should test true with zero. */
+        QVERIFY(Qt::MouseButtons().testFlag(Qt::NoButton));
+    }
+
+    {
+        Qt::MouseButtons btn = Qt::NoButton;
+        QVERIFY(btn.testFlag(Qt::NoButton));
+    }
+}
+
+void tst_QFlags::testFlagMultiBits() const
+{
+    /* Qt::Window is 0x00000001
+     * Qt::Dialog is 0x00000002 | Window
+     */
+    {
+        const Qt::WindowFlags onlyWindow(Qt::Window);
+        QVERIFY(!onlyWindow.testFlag(Qt::Dialog));
+    }
+
+    {
+        const Qt::WindowFlags hasDialog(Qt::Dialog);
+        QVERIFY(hasDialog.testFlag(Qt::Dialog));
+    }
+}
+
+template <int N, typename T> bool verifyConstExpr(T n) { return n == N; }
+
+void tst_QFlags::constExpr()
+{
+#ifdef Q_COMPILER_CONSTEXPR
+    Qt::MouseButtons btn = Qt::LeftButton | Qt::RightButton;
+    switch (btn) {
+        case Qt::LeftButton: QVERIFY(false); break;
+        case Qt::RightButton: QVERIFY(false); break;
+        case Qt::LeftButton | Qt::RightButton: QVERIFY(true); break;
+        default: QVERIFY(false);
+    }
+
+    QVERIFY(verifyConstExpr<(Qt::LeftButton | Qt::RightButton) & Qt::LeftButton>(Qt::LeftButton));
+    QVERIFY(verifyConstExpr<(Qt::LeftButton | Qt::RightButton) & Qt::MiddleButton>(0));
+    QVERIFY(verifyConstExpr<(Qt::LeftButton | Qt::RightButton) | Qt::MiddleButton>(Qt::LeftButton | Qt::RightButton | Qt::MiddleButton));
+    QVERIFY(verifyConstExpr<~(Qt::LeftButton | Qt::RightButton)>(~(Qt::LeftButton | Qt::RightButton)));
+    QVERIFY(verifyConstExpr<Qt::MouseButtons(Qt::LeftButton) ^ Qt::RightButton>(Qt::LeftButton ^ Qt::RightButton));
+    QVERIFY(verifyConstExpr<Qt::MouseButtons(0)>(0));
+    QVERIFY(verifyConstExpr<Qt::MouseButtons(Qt::RightButton) & 0xff>(Qt::RightButton));
+    QVERIFY(verifyConstExpr<Qt::MouseButtons(Qt::RightButton) | 0xff>(0xff));
+
+    QVERIFY(!verifyConstExpr<Qt::RightButton>(!Qt::MouseButtons(Qt::LeftButton)));
+#endif
+}
+
+
+QTEST_MAIN(tst_QFlags)
+#include "tst_qflags.moc"