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diff --git a/tests/auto/qtessellator/testtessellator.cpp b/tests/auto/qtessellator/testtessellator.cpp
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+++ b/tests/auto/qtessellator/testtessellator.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <testtessellator.h>
+#include <private/qtessellator_p.h>
+
+#include "math.h"
+
+class TestTessellator : public QTessellator
+{
+public:
+    QVector<XTrapezoid> *traps;
+    void addTrap(const Trapezoid &trap);
+};
+
+void TestTessellator::addTrap(const Trapezoid &trap)
+{
+    XTrapezoid xtrap;
+    xtrap.top = Q27Dot5ToXFixed(trap.top);
+    xtrap.bottom = Q27Dot5ToXFixed(trap.bottom);
+    xtrap.left.p1.x = Q27Dot5ToXFixed(trap.topLeft->x);
+    xtrap.left.p1.y = Q27Dot5ToXFixed(trap.topLeft->y);
+    xtrap.left.p2.x = Q27Dot5ToXFixed(trap.bottomLeft->x);
+    xtrap.left.p2.y = Q27Dot5ToXFixed(trap.bottomLeft->y);
+    xtrap.right.p1.x = Q27Dot5ToXFixed(trap.topRight->x);
+    xtrap.right.p1.y = Q27Dot5ToXFixed(trap.topRight->y);
+    xtrap.right.p2.x = Q27Dot5ToXFixed(trap.bottomRight->x);
+    xtrap.right.p2.y = Q27Dot5ToXFixed(trap.bottomRight->y);
+    traps->append(xtrap);
+}
+
+
+void test_tesselate_polygon(QVector<XTrapezoid> *traps, const QPointF *points, int nPoints,
+                         bool winding)
+{
+    TestTessellator t;
+    t.traps = traps;
+    t.setWinding(winding);
+    t.tessellate(points, nPoints);
+}
+
+
+void test_tessellate_polygon_convex(QVector<XTrapezoid> *traps, const QPointF *points, int nPoints,
+                                   bool winding)
+{
+    TestTessellator t;
+    t.traps = traps;
+    t.setWinding(winding);
+    t.tessellateConvex(points, nPoints);
+}
+
+
+void test_tessellate_polygon_rect(QVector<XTrapezoid> *traps, const QPointF *points, int nPoints,
+                                  bool winding)
+{
+    // 5 points per rect
+    Q_ASSERT(nPoints % 5 == 0);
+
+    TestTessellator t;
+    t.traps = traps;
+    t.setWinding(winding);
+    for (int i = 0; i < nPoints / 5; ++i) {
+        QPointF rectA = points[5*i];
+        QPointF rectB = points[5*i+1];
+        QPointF rectC = points[5*i+2];
+        QPointF rectD = points[5*i+3];
+
+        QPointF a = (rectA + rectD) * 0.5;
+        QPointF b = (rectB + rectC) * 0.5;
+
+        QPointF delta = rectA - rectD;
+
+        qreal width = sqrt(delta.x() * delta.x() + delta.y() * delta.y());
+
+        t.tessellateRect(a, b, width);
+    }
+}