@Test
public void testHeightAttribute() throws Exception {
l.setHeight(128);
assertEquals((Integer) 128, l.getHeight());
assertEquals("128", l.getAttribute("height"));
l.setHeight(null);
assertEquals("", l.getAttribute("height"));
assertNull(l.getHeight());
l.setAttribute("height", "128");
assertEquals((Integer) 128, l.getHeight());
assertEquals("128", l.getAttribute("height"));
l.setAttribute("height", null);
assertEquals("", l.getAttribute("height"));
assertNull(l.getHeight());
}
