// Starts off empty
assertEquals(0, ppt.getSlides().length);
// Add a slide
Slide slide = ppt.createSlide();
assertEquals(1, ppt.getSlides().length);
// Add some stuff into it
ShapeGroup group = new ShapeGroup();
Dimension pgsize = ppt.getPageSize();
java.awt.Rectangle bounds = new java.awt.Rectangle(0, 0, (int)pgsize.getWidth(), (int)pgsize.getHeight());
group.setAnchor(bounds);
slide.addShape(group);
PPGraphics2D graphics = new PPGraphics2D(group);
graphics.setColor(Color.blue);
graphics.draw(new Rectangle(1296, 2544, 1344, 0));
graphics.setColor(Color.red);
graphics.setStroke(new BasicStroke((float)2.5));
graphics.drawLine(500, 500, 1500, 2500);
graphics.setColor(Color.green);
graphics.setPaint(Color.gray);
graphics.drawOval(4000, 1000, 1000, 1000);
// Write the file out
ByteArrayOutputStream out = new ByteArrayOutputStream();
ppt.write(out);
out.close();
// And read it back in
ppt = new SlideShow(new HSLFSlideShow(new ByteArrayInputStream(out.toByteArray())));
assertEquals(1, ppt.getSlides().length);
slide = ppt.getSlides()[0];
Shape[] shape = slide.getShapes();
assertEquals(shape.length, 1); //group shape
assertTrue(shape[0] instanceof ShapeGroup); //group shape
group = (ShapeGroup)shape[0];
shape = group.getShapes();
assertEquals(shape.length, 7);
