void KisPrescaledProjectionTest::testQtScaling()
{
    // Create a canvas image
    QImage canvas(6, 6, QImage::Format_ARGB32);
    canvas.fill(0);

    // Image we are going to scale down
    QImage image(7, 7, QImage::Format_ARGB32);
    QPainter imagePainter(&image);
    imagePainter.fillRect(QRect(0,0,7,7),Qt::green);
    imagePainter.end();


    QPainter gc(&canvas);

    // Scale down transformation
    qreal scale = 3.49/7.0;
    gc.setTransform(QTransform::fromScale(scale,scale));

    // Draw a rect scale*(7x7)
    gc.fillRect(QRectF(0,0,7,7), Qt::red);

    // Draw an image scale*(7x7)
    gc.drawImage(QPointF(), image, QRectF(0,0,7,7));

    gc.end();

    canvas.save("canvas.png");

    // Create an expected result
    QImage expectedResult(6, 6, QImage::Format_ARGB32);
    canvas.fill(0);
    QPainter expectedPainter(&expectedResult);
    expectedPainter.fillRect(QRect(0,0,4,4), Qt::green);
    expectedPainter.end();

    QCOMPARE(canvas, expectedResult);
}