Add user configurable mask generation

Created a QMaskGenerator abstract base class to serve as a basis for
user specific mask generators. Added the possibility to override the
default mask generation in QWebSocket.

Change-Id: Iaa02b44193f854d103b5f352617789175fe61f89
Reviewed-by: Kurt Pattyn <pattyn.kurt@gmail.com>

3 files changed, 174 insertions, 1 deletions

diff --git a/tests/auto/auto.pro b/tests/auto/auto.pro
index 34b232b..31900a4 100644
--- a/tests/auto/auto.pro
+++ b/tests/auto/auto.pro
@@ -7,7 +7,8 @@ contains(QT_CONFIG, private_tests): SUBDIRS += \
    websocketprotocol \
    dataprocessor \
    websocketframe \
-   handshakerequest
+   handshakerequest \
+   qdefaultmaskgenerator
 
 SUBDIRS += \
     qwebsocket \
diff --git a/tests/auto/qdefaultmaskgenerator/qdefaultmaskgenerator.pro b/tests/auto/qdefaultmaskgenerator/qdefaultmaskgenerator.pro
new file mode 100644
index 0000000..1ddccb3
--- /dev/null
+++ b/tests/auto/qdefaultmaskgenerator/qdefaultmaskgenerator.pro
@@ -0,0 +1,14 @@
+CONFIG += console
+CONFIG += testcase c++11
+CONFIG -= app_bundle
+
+TEMPLATE = app
+
+TARGET = tst_defaultmaskgenerator
+
+QT = core testlib websockets websockets-private
+
+SOURCES += tst_defaultmaskgenerator.cpp
+
+requires(contains(QT_CONFIG, private_tests))
+DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0
diff --git a/tests/auto/qdefaultmaskgenerator/tst_defaultmaskgenerator.cpp b/tests/auto/qdefaultmaskgenerator/tst_defaultmaskgenerator.cpp
new file mode 100644
index 0000000..46e6d61
--- /dev/null
+++ b/tests/auto/qdefaultmaskgenerator/tst_defaultmaskgenerator.cpp
@@ -0,0 +1,158 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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.
+**
+** 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <QtTest/QtTest>
+#include <QtTest/qtestcase.h>
+#include <QtTest/QSignalSpy>
+#include <QtCore/QBuffer>
+#include <QtCore/QByteArray>
+#include <QtCore/QDebug>
+
+#include "private/qdefaultmaskgenerator_p.h"
+
+QT_USE_NAMESPACE
+
+class tst_QDefaultMaskGenerator : public QObject
+{
+    Q_OBJECT
+
+public:
+    tst_QDefaultMaskGenerator();
+
+private Q_SLOTS:
+    void initTestCase();
+    void cleanupTestCase();
+    void init();
+    void cleanup();
+
+    void tst_randomnessWithoutSeed();
+    void tst_randomnessWithSeed();
+
+private:
+};
+
+
+
+tst_QDefaultMaskGenerator::tst_QDefaultMaskGenerator()
+{
+}
+
+void tst_QDefaultMaskGenerator::initTestCase()
+{
+}
+
+void tst_QDefaultMaskGenerator::cleanupTestCase()
+{
+}
+
+void tst_QDefaultMaskGenerator::init()
+{
+}
+
+void tst_QDefaultMaskGenerator::cleanup()
+{
+}
+
+void tst_QDefaultMaskGenerator::tst_randomnessWithoutSeed()
+{
+    //generate two series of data, and see if they differ
+    {
+        QDefaultMaskGenerator generator;
+
+        QVector<quint32> series1, series2;
+        for (int i = 0; i < 1000; ++i)
+            series1 << generator.nextMask();
+        for (int i = 0; i < 1000; ++i)
+            series2 << generator.nextMask();
+
+        QVERIFY(series1 != series2);
+    }
+}
+
+void tst_QDefaultMaskGenerator::tst_randomnessWithSeed()
+{
+    //generate two series of data, and see if they differ
+    //the generator is seeded
+    {
+        QDefaultMaskGenerator generator;
+        generator.seed();
+
+        QVector<quint32> series1, series2;
+        for (int i = 0; i < 1000; ++i)
+            series1 << generator.nextMask();
+        for (int i = 0; i < 1000; ++i)
+            series2 << generator.nextMask();
+
+        QVERIFY(series1 != series2);
+    }
+    //generates two series of data with 2 distinct generators
+    //both generators are seeded
+    {
+        QDefaultMaskGenerator generator1, generator2;
+        generator1.seed();
+        generator2.seed();
+
+        QVector<quint32> series1, series2;
+        for (int i = 0; i < 1000; ++i) {
+            series1 << generator1.nextMask();
+            series2 << generator2.nextMask();
+        }
+
+        QVERIFY(series1 != series2);
+    }
+    //generates two series of data with 2 distinct generators
+    //only one of the two is seeded
+    {
+        QDefaultMaskGenerator generator1, generator2;
+        generator1.seed();
+
+        QVector<quint32> series1, series2;
+        for (int i = 0; i < 1000; ++i) {
+            series1 << generator1.nextMask();
+            series2 << generator2.nextMask();
+        }
+
+        QVERIFY(series1 != series2);
+    }
+}
+
+QTEST_MAIN(tst_QDefaultMaskGenerator)
+
+#include "tst_defaultmaskgenerator.moc"