@Test
public void testConstructors1() {
final Comment x = new Comment();
assertEquals(NodeType.COMMENT, x.getType());
assertEquals(null, x.getParent());
assertEquals("", x.getContent());
x.setContent(HELLO);
assertEquals(HELLO, x.getContent());
x.clearContent();
assertEquals("", x.getContent());
x.appendContent(HELLO);
assertEquals(HELLO, x.getContent());
x.appendContent(null);
assertEquals(HELLO, x.getContent());
assertEquals(null, x.getRootElement());
assertEquals(null, x.getDocument());
assertEquals(x, x.getRootChild());
assertTrue(x.deepEquals(x));
assertFalse(x.deepEquals(null));
}