@Test
public void twoPages() {

    PageRange pr = PageParser.parse("10,11");
    assertEquals("10,11", pr.getLiteral());
    assertEquals("10", pr.getPageFirst());
    assertEquals(Integer.valueOf(2), pr.getNumberOfPages());
    assertTrue(pr.isMultiplePages());
    PageParser.parse("10, 11");
    assertEquals("10,11", pr.getLiteral());
    assertEquals("10", pr.getPageFirst());
    assertEquals(Integer.valueOf(2), pr.getNumberOfPages());
    assertTrue(pr.isMultiplePages());
}