tester.actionWaitForIdle();
ColorCurve c = new ColorCurve();
c.addPoint( 0.0, 0.0 );
c.addPoint( 1.0, 1.0 );
c.addPoint( 0.5, 0.5 );
c.addPoint( 0.6, 0.4 );
cp.setCurve( c );
Point start = getCurvePoint( c, 0.5 );
tester.mousePress( cp, (int)start.getX(), (int)start.getY() );
// Drag CP 1 so that it goes to the other side of CP 2
Point end = getPoint( 0.65, 0.4 );