/**
*
*/
public void testPageWindowCycle()
{
PageWindowManager manager = new PageWindowManager(100);
PageWindow window;
window = manager.createPageWindow(1, 30);
window = manager.createPageWindow(2, 30);
window = manager.createPageWindow(3, 30);
assertWindow(window, 3, 60, 30);
window = manager.createPageWindow(4, 30);
assertWindow(window, 4, 90, 30);
// should start at the beginging
window = manager.createPageWindow(5, 20);
assertWindow(window, 5, 0, 20);
assertNull(manager.getPageWindow(1));
window = manager.getPageWindow(2);
assertWindow(window, 2, 30, 30);
window = manager.createPageWindow(6, 10);
assertWindow(window, 6, 20, 10);
window = manager.getPageWindow(2);
assertWindow(window, 2, 30, 30);
window = manager.createPageWindow(6, 30);
assertWindow(window, 6, 20, 30);
assertNull(manager.getPageWindow(2));
assertNotNull(manager.getPageWindow( 3));
window = manager.createPageWindow(6, 60);
assertWindow(window, 6, 20, 60);
assertNull(manager.getPageWindow(3));
window = manager.createPageWindow(7, 20);
assertWindow(window,7, 80, 20);
assertNotNull(manager.getPageWindow( 7));
// should start at the beginning again
window = manager.createPageWindow(8, 10);
assertWindow(window, 8, 0, 10);
assertNull(manager.getPageWindow(5));
assertNotNull(manager.getPageWindow(6));
window = manager.createPageWindow( 9, 20);
assertWindow(window, 9, 10, 20);
assertNull(manager.getPageWindow(6));
assertNotNull(manager.getPageWindow(7));
window = manager.createPageWindow(10, 20);
assertWindow(window,10, 30, 20);
assertNull(manager.getPageWindow(6));
assertNotNull(manager.getPageWindow(7));
// make sure when replacing a page that's not last the old "instance" is
// not valid anymore
manager.createPageWindow(8, 10);
window = manager.getPageWindow(8);
assertWindow(window, 8, 50, 10);
}