public void testAddingScrollBarChangesChildConsumableArea() throws Exception {
int scrollWidth = new JScrollBar(JScrollBar.VERTICAL).getPreferredSize().width;
style.setMargin("0");
style.setPadding("0");
style.setBorderWidth("0");
panel.setSize(100, 100);
panel.addVerticalScrollBar();
assertEquals(100 - scrollWidth, panel.getChildConsumableArea().width);
assertEquals(100, panel.getChildConsumableArea().height);
panel.addHorizontalScrollBar();
assertEquals(100 - scrollWidth, panel.getChildConsumableArea().width);
assertEquals(100 - scrollWidth, panel.getChildConsumableArea().height);
panel.removeVerticalScrollBar();
assertEquals(100, panel.getChildConsumableArea().width);
assertEquals(100 - scrollWidth, panel.getChildConsumableArea().height);
panel.removeHorizontalScrollBar();
assertEquals(100, panel.getChildConsumableArea().width);
assertEquals(100, panel.getChildConsumableArea().height);
}
