set1 = new PageRanges("2, 3-2");
set2 = new PageRanges(2);
assertTrue(set1.equals(set2));
set1 = new NumberUpSupported(2, 10);
set2 = new NumberUpSupported(2);
assertFalse(set1.equals(set2));
set1 = new setOfIntegerSyntax("100-1000");
set2 = null;
assertFalse(set1.equals(set2));