@Test public void createSequentialImage() throws Exception { ParameterBlockJAI pb = new ParameterBlockJAI("Jiffle"); String script = "dest = y() * width() + x();" ; pb.setParameter("script", script); pb.setParameter("destName", "dest"); Rectangle bounds = new Rectangle(0, 0, WIDTH, WIDTH); pb.setParameter("destBounds", bounds); RenderedOp op = JAI.create("Jiffle", pb); RenderedImage result = op.getRendering(); assertResult(result, script); }