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1 package uk.co.jezuk.mango;
2
3 import junit.framework.*;
4
5 public class TransformIteratorTest extends TestCase
6 {
7 java.util.List  list;
8
9 public TransformIteratorTest(String name) { super(name); }
10 public static Test suite() { return new TestSuite(TransformIteratorTest.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 DoubleUp implements UnaryFunction
20 {
21 public Object fn(Object obj)
22 {
23 Integer i = (Integer )obj;
24 return new Integer (i.intValue() * 2);
25 } }
27
28 public void test1()
29 {
30 java.util.Iterator iter = Iterators.TransformIterator(list.iterator(), new DoubleUp());
31
32 int i = 0;
33 while(iter.hasNext())
34 {
35 Integer n = (Integer )iter.next();
36 assertEquals(n.intValue(), i);
37 i += 2;
38 } }
41 class NameObject
42 {
43 public NameObject(String name) { name_ = name; }
44
45 public String getName() { return name_; }
46
47 private String name_;
48 }
50 public void test2()
51 {
52 list = new java.util.ArrayList ();
53 list.add(new NameObject("hawkeye pierce"));
54 list.add(new NameObject("sacremento"));
55 list.add(new NameObject("GOBBLE"));
56 list.add(new NameObject("SINGLETON"));
57 list.add(new NameObject("BILBO"));
58 NameObject theOneIWant = new NameObject("CORGAN");
59 list.add(theOneIWant);
60 list.add(new NameObject("ERNEST"));
61 list.add(new NameObject("DAVID"));
62 list.add(new NameObject("BILLY"));
63 list.add(new NameObject("SCAGGS"));
64 list.add(new NameObject("CHARLES"));
65 list.add(new NameObject("SIMEON"));
66
67 String found = (String )Algorithms.find(Iterators.TransformIterator(list.iterator(),
69 Adapt.ArgumentMethod("getName")),
70 new String ("CORGAN"));
71 assertEquals("CORGAN", found);
72 } }
75
76 |
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