@Test public void testEquals() { DocumentRange range = new DocumentRange(5, 8); Assert.assertFalse(range.equals(null)); Assert.assertTrue(range.equals(range)); Assert.assertTrue(range.equals(new DocumentRange(5, 8))); Assert.assertFalse(range.equals(new DocumentRange(4, 8))); Assert.assertFalse(range.equals("Hello world")); }