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1 package uk.co.jezuk.mango;
2
3 import junit.framework.*;
4
5 public class SkippingIteratorTest extends TestCase
6 {
7 java.util.List  list;
8
9 public SkippingIteratorTest(String name) { super(name); }
10 public static Test suite() { return new TestSuite(SkippingIteratorTest.class); }
11
12 protected void setUp()
13 {
14 list = new java.util.ArrayList ();
15 for(int i = 0; i < 10; ++i)
16 list.add(new Integer (i));
17 }
19 class LessThanFive implements Predicate
20 {
21 public boolean test(Object obj)
22 {
23 Integer i = (Integer )obj;
24 return i.intValue() < 5;
25 } }
27
28 public void test1()
29 {
30 java.util.Iterator iter = Iterators.SkippingIterator(list.iterator(), new LessThanFive());
31
32 assertEquals(new Integer (5), iter.next());
33 assertEquals(new Integer (6), iter.next());
34 assertEquals(new Integer (7), iter.next());
35 assertEquals(new Integer (8), iter.next());
36 assertEquals(new Integer (9), iter.next());
37 }
39 public void test2()
40 {
41 list = new java.util.ArrayList ();
42 list.add("hawkeye pierce");
43 list.add("sacremento");
44 list.add("GOBBLE");
45 list.add("SINGLETON");
46 list.add("BILBO");
47 list.add("ERNEST");
48 list.add("DAVID");
49 list.add("BILLY");
50 list.add("SCAGGS");
51 list.add("CHARLES");
52 list.add("SIMEON");
53
54 java.util.Iterator iter = Iterators.SkippingIterator(list.iterator(),
55 new Predicate() {
56 public boolean test(Object o) {
57 String s = (String )o;
58 return s.charAt(0) == 'S';
59 }
60 });
61 int i = 0;
62 while(iter.hasNext())
63 {
64 ++i;
65 String s = (String )iter.next();
66 assertEquals(false, s.startsWith("S"));
67 } assertEquals(8, i);
69 } } |
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